./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN --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 ebed12b86dce507000a7a0630996a9595573172c73db75fed69855441af252c1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:35:17,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:35:17,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:35:17,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:35:17,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:35:17,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:35:17,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:35:17,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:35:17,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:35:17,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:35:17,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:35:17,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:35:17,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:35:17,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:35:17,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:35:17,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:35:17,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:35:17,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:35:17,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:35:17,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:35:17,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:35:17,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:35:17,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:35:17,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:35:17,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:35:17,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:35:17,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:35:17,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:35:17,906 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:35:17,907 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:35:17,909 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:35:17,910 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:35:17,912 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:35:17,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:35:17,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:35:17,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:35:17,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:35:17,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:35:17,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:35:17,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:35:17,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:35:17,922 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 09:35:17,967 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:35:17,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:35:17,968 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:35:17,969 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:35:17,970 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:35:17,970 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:35:17,971 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:35:17,971 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:35:17,971 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:35:17,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:35:17,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:35:17,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:35:17,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:35:17,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:35:17,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:35:17,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:35:17,975 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:35:17,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:35:17,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:35:17,976 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:35:17,976 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:35:17,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:35:17,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:35:17,977 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:35:17,977 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:35:17,977 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:35:17,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:35:17,977 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:35:17,978 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:35:17,978 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:35:17,978 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebed12b86dce507000a7a0630996a9595573172c73db75fed69855441af252c1 [2022-11-20 09:35:18,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:35:18,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:35:18,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:35:18,361 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:35:18,361 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:35:18,363 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i [2022-11-20 09:35:21,722 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:35:22,572 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:35:22,573 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i [2022-11-20 09:35:22,653 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/data/cfd06bd4f/183d0cdadd3d4437842acdca91a7d681/FLAG9e811fb0a [2022-11-20 09:35:22,683 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/data/cfd06bd4f/183d0cdadd3d4437842acdca91a7d681 [2022-11-20 09:35:22,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:35:22,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:35:22,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:35:22,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:35:22,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:35:22,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:35:22" (1/1) ... [2022-11-20 09:35:22,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4420a2a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:22, skipping insertion in model container [2022-11-20 09:35:22,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:35:22" (1/1) ... [2022-11-20 09:35:22,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:35:23,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:35:25,952 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftLeft(BitabsTranslation.java:148) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:187) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1413) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) 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:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) 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) [2022-11-20 09:35:25,963 INFO L158 Benchmark]: Toolchain (without parser) took 3270.69ms. Allocated memory was 127.9MB in the beginning and 188.7MB in the end (delta: 60.8MB). Free memory was 72.0MB in the beginning and 136.2MB in the end (delta: -64.2MB). Peak memory consumption was 78.7MB. Max. memory is 16.1GB. [2022-11-20 09:35:25,964 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 96.5MB. Free memory is still 49.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:35:25,966 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3265.51ms. Allocated memory was 127.9MB in the beginning and 188.7MB in the end (delta: 60.8MB). Free memory was 71.6MB in the beginning and 136.2MB in the end (delta: -64.6MB). Peak memory consumption was 78.7MB. Max. memory is 16.1GB. [2022-11-20 09:35:25,967 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 96.5MB. Free memory is still 49.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3265.51ms. Allocated memory was 127.9MB in the beginning and 188.7MB in the end (delta: 60.8MB). Free memory was 71.6MB in the beginning and 136.2MB in the end (delta: -64.6MB). Peak memory consumption was 78.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) 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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN --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 ebed12b86dce507000a7a0630996a9595573172c73db75fed69855441af252c1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:35:28,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:35:28,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:35:28,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:35:28,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:35:28,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:35:28,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:35:28,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:35:28,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:35:28,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:35:28,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:35:28,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:35:28,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:35:28,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:35:28,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:35:28,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:35:28,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:35:28,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:35:28,785 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:35:28,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:35:28,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:35:28,798 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:35:28,802 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:35:28,803 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:35:28,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:35:28,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:35:28,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:35:28,816 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:35:28,817 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:35:28,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:35:28,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:35:28,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:35:28,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:35:28,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:35:28,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:35:28,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:35:28,831 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:35:28,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:35:28,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:35:28,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:35:28,834 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:35:28,840 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 09:35:28,891 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:35:28,891 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:35:28,893 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:35:28,893 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:35:28,894 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:35:28,895 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:35:28,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:35:28,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:35:28,896 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:35:28,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:35:28,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:35:28,899 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:35:28,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:35:28,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:35:28,900 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 09:35:28,900 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 09:35:28,900 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 09:35:28,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:35:28,901 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:35:28,901 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:35:28,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:35:28,902 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:35:28,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:35:28,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:35:28,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:35:28,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:35:28,904 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:35:28,904 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 09:35:28,905 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 09:35:28,905 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:35:28,905 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:35:28,906 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:35:28,906 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 09:35:28,907 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebed12b86dce507000a7a0630996a9595573172c73db75fed69855441af252c1 [2022-11-20 09:35:29,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:35:29,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:35:29,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:35:29,408 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:35:29,409 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:35:29,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i [2022-11-20 09:35:32,504 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:35:33,351 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:35:33,352 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i [2022-11-20 09:35:33,438 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/data/a30facfd0/6073d771281b42c9a8eb6d174eff9b55/FLAG94cf187cb [2022-11-20 09:35:33,468 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/data/a30facfd0/6073d771281b42c9a8eb6d174eff9b55 [2022-11-20 09:35:33,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:35:33,475 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:35:33,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:35:33,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:35:33,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:35:33,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:35:33" (1/1) ... [2022-11-20 09:35:33,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e4aaa94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:33, skipping insertion in model container [2022-11-20 09:35:33,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:35:33" (1/1) ... [2022-11-20 09:35:33,497 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:35:33,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:35:37,742 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402143,402156] [2022-11-20 09:35:37,747 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402312,402325] [2022-11-20 09:35:37,748 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402479,402492] [2022-11-20 09:35:37,749 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402647,402660] [2022-11-20 09:35:37,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:35:37,865 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 09:35:37,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:35:38,673 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402143,402156] [2022-11-20 09:35:38,674 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402312,402325] [2022-11-20 09:35:38,674 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402479,402492] [2022-11-20 09:35:38,713 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402647,402660] [2022-11-20 09:35:38,721 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:35:38,753 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:35:39,379 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402143,402156] [2022-11-20 09:35:39,380 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402312,402325] [2022-11-20 09:35:39,380 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402479,402492] [2022-11-20 09:35:39,381 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402647,402660] [2022-11-20 09:35:39,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:35:39,646 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:35:39,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:39 WrapperNode [2022-11-20 09:35:39,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:35:39,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:35:39,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:35:39,649 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:35:39,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:39" (1/1) ... [2022-11-20 09:35:39,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:39" (1/1) ... [2022-11-20 09:35:40,075 INFO L138 Inliner]: procedures = 567, calls = 3861, calls flagged for inlining = 272, calls inlined = 248, statements flattened = 8867 [2022-11-20 09:35:40,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:35:40,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:35:40,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:35:40,077 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:35:40,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:39" (1/1) ... [2022-11-20 09:35:40,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:39" (1/1) ... [2022-11-20 09:35:40,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:39" (1/1) ... [2022-11-20 09:35:40,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:39" (1/1) ... [2022-11-20 09:35:40,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:39" (1/1) ... [2022-11-20 09:35:40,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:39" (1/1) ... [2022-11-20 09:35:40,515 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:39" (1/1) ... [2022-11-20 09:35:40,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:39" (1/1) ... [2022-11-20 09:35:40,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:35:40,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:35:40,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:35:40,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:35:40,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:39" (1/1) ... [2022-11-20 09:35:40,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:35:40,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:35:40,665 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:35:40,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:35:40,730 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_evict_inode [2022-11-20 09:35:40,730 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_evict_inode [2022-11-20 09:35:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure dput [2022-11-20 09:35:40,731 INFO L138 BoogieDeclarations]: Found implementation of procedure dput [2022-11-20 09:35:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 09:35:40,731 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 09:35:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_unlink [2022-11-20 09:35:40,732 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_unlink [2022-11-20 09:35:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_get_inode [2022-11-20 09:35:40,732 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_get_inode [2022-11-20 09:35:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-20 09:35:40,732 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-20 09:35:40,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 09:35:40,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 09:35:40,733 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_lseek [2022-11-20 09:35:40,733 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_lseek [2022-11-20 09:35:40,734 INFO L130 BoogieDeclarations]: Found specification of procedure do_expire_wait [2022-11-20 09:35:40,735 INFO L138 BoogieDeclarations]: Found implementation of procedure do_expire_wait [2022-11-20 09:35:40,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 09:35:40,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 09:35:40,736 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-20 09:35:40,736 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-20 09:35:40,737 INFO L130 BoogieDeclarations]: Found specification of procedure dget [2022-11-20 09:35:40,737 INFO L138 BoogieDeclarations]: Found implementation of procedure dget [2022-11-20 09:35:40,737 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2022-11-20 09:35:40,737 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2022-11-20 09:35:40,737 INFO L130 BoogieDeclarations]: Found specification of procedure current_kernel_time [2022-11-20 09:35:40,737 INFO L138 BoogieDeclarations]: Found implementation of procedure current_kernel_time [2022-11-20 09:35:40,738 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_expire_indirect [2022-11-20 09:35:40,738 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_expire_indirect [2022-11-20 09:35:40,738 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2022-11-20 09:35:40,739 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2022-11-20 09:35:40,739 INFO L130 BoogieDeclarations]: Found specification of procedure managed_dentry_clear_managed [2022-11-20 09:35:40,739 INFO L138 BoogieDeclarations]: Found implementation of procedure managed_dentry_clear_managed [2022-11-20 09:35:40,739 INFO L130 BoogieDeclarations]: Found specification of procedure from_kgid_munged [2022-11-20 09:35:40,739 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kgid_munged [2022-11-20 09:35:40,739 INFO L130 BoogieDeclarations]: Found specification of procedure follow_down_one [2022-11-20 09:35:40,739 INFO L138 BoogieDeclarations]: Found implementation of procedure follow_down_one [2022-11-20 09:35:40,740 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_show_options [2022-11-20 09:35:40,740 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_show_options [2022-11-20 09:35:40,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_48 [2022-11-20 09:35:40,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_48 [2022-11-20 09:35:40,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_57 [2022-11-20 09:35:40,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_57 [2022-11-20 09:35:40,742 INFO L130 BoogieDeclarations]: Found specification of procedure __autofs4_add_expiring [2022-11-20 09:35:40,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __autofs4_add_expiring [2022-11-20 09:35:40,742 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-20 09:35:40,743 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_expire_wait [2022-11-20 09:35:40,743 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_expire_wait [2022-11-20 09:35:40,743 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_dev_ioctl [2022-11-20 09:35:40,744 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_dev_ioctl [2022-11-20 09:35:40,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 09:35:40,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 09:35:40,744 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-20 09:35:40,744 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-20 09:35:40,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 09:35:40,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 09:35:40,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:35:40,745 INFO L130 BoogieDeclarations]: Found specification of procedure d_count [2022-11-20 09:35:40,745 INFO L138 BoogieDeclarations]: Found implementation of procedure d_count [2022-11-20 09:35:40,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 09:35:40,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 09:35:40,745 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-20 09:35:40,746 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-20 09:35:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 09:35:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure from_kuid_munged [2022-11-20 09:35:40,746 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kuid_munged [2022-11-20 09:35:40,747 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-20 09:35:40,747 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-20 09:35:40,747 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 09:35:40,748 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 09:35:40,748 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2022-11-20 09:35:40,748 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2022-11-20 09:35:40,748 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_oz_mode [2022-11-20 09:35:40,749 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_oz_mode [2022-11-20 09:35:40,749 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_do_expire_multi [2022-11-20 09:35:40,749 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_do_expire_multi [2022-11-20 09:35:40,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2022-11-20 09:35:40,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2022-11-20 09:35:40,750 INFO L130 BoogieDeclarations]: Found specification of procedure __task_pid_nr_ns [2022-11-20 09:35:40,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __task_pid_nr_ns [2022-11-20 09:35:40,750 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-20 09:35:40,750 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-20 09:35:40,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_54 [2022-11-20 09:35:40,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_54 [2022-11-20 09:35:40,751 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_sbi [2022-11-20 09:35:40,751 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_sbi [2022-11-20 09:35:40,751 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-20 09:35:40,751 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-20 09:35:40,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_siglock_of_sighand_struct [2022-11-20 09:35:40,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_siglock_of_sighand_struct [2022-11-20 09:35:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_new_ino [2022-11-20 09:35:40,752 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_new_ino [2022-11-20 09:35:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure simple_empty [2022-11-20 09:35:40,753 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_empty [2022-11-20 09:35:40,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 09:35:40,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 09:35:40,753 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_can_expire [2022-11-20 09:35:40,753 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_can_expire [2022-11-20 09:35:40,753 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dentry_ino [2022-11-20 09:35:40,753 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dentry_ino [2022-11-20 09:35:40,754 INFO L130 BoogieDeclarations]: Found specification of procedure fget [2022-11-20 09:35:40,756 INFO L138 BoogieDeclarations]: Found implementation of procedure fget [2022-11-20 09:35:40,760 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_open [2022-11-20 09:35:40,760 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_open [2022-11-20 09:35:40,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 09:35:40,761 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 09:35:40,761 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_rmdir [2022-11-20 09:35:40,761 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_rmdir [2022-11-20 09:35:40,762 INFO L130 BoogieDeclarations]: Found specification of procedure may_umount [2022-11-20 09:35:40,762 INFO L138 BoogieDeclarations]: Found implementation of procedure may_umount [2022-11-20 09:35:40,763 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_dev_ioctl_exit [2022-11-20 09:35:40,767 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_dev_ioctl_exit [2022-11-20 09:35:40,768 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-20 09:35:40,768 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-20 09:35:40,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 09:35:40,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 09:35:40,768 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_open [2022-11-20 09:35:40,768 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_open [2022-11-20 09:35:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-20 09:35:40,769 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-20 09:35:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure clear_nlink [2022-11-20 09:35:40,769 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_nlink [2022-11-20 09:35:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-20 09:35:40,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-20 09:35:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_type_trigger [2022-11-20 09:35:40,770 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_type_trigger [2022-11-20 09:35:40,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 09:35:40,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 09:35:40,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 09:35:40,770 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2022-11-20 09:35:40,770 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2022-11-20 09:35:40,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 09:35:40,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 09:35:40,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 09:35:40,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 09:35:40,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-20 09:35:40,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-20 09:35:40,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-20 09:35:40,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-20 09:35:40,772 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2022-11-20 09:35:40,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-20 09:35:40,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-20 09:35:40,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:35:40,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 09:35:40,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 09:35:40,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 09:35:40,773 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 09:35:40,773 INFO L130 BoogieDeclarations]: Found specification of procedure simple_positive [2022-11-20 09:35:40,773 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_positive [2022-11-20 09:35:40,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 09:35:40,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 09:35:40,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 09:35:40,774 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-20 09:35:40,774 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-20 09:35:40,774 INFO L130 BoogieDeclarations]: Found specification of procedure path_get [2022-11-20 09:35:40,774 INFO L138 BoogieDeclarations]: Found implementation of procedure path_get [2022-11-20 09:35:40,774 INFO L130 BoogieDeclarations]: Found specification of procedure dget_dlock [2022-11-20 09:35:40,774 INFO L138 BoogieDeclarations]: Found implementation of procedure dget_dlock [2022-11-20 09:35:40,775 INFO L130 BoogieDeclarations]: Found specification of procedure d_lookup [2022-11-20 09:35:40,775 INFO L138 BoogieDeclarations]: Found implementation of procedure d_lookup [2022-11-20 09:35:40,775 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-20 09:35:40,775 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-20 09:35:40,775 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-20 09:35:40,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-20 09:35:40,775 INFO L130 BoogieDeclarations]: Found specification of procedure recalc_sigpending [2022-11-20 09:35:40,776 INFO L138 BoogieDeclarations]: Found implementation of procedure recalc_sigpending [2022-11-20 09:35:40,776 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-20 09:35:40,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-20 09:35:40,776 INFO L130 BoogieDeclarations]: Found specification of procedure d_drop [2022-11-20 09:35:40,776 INFO L138 BoogieDeclarations]: Found implementation of procedure d_drop [2022-11-20 09:35:40,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 09:35:40,777 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_mount [2022-11-20 09:35:40,777 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_mount [2022-11-20 09:35:40,777 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_type_indirect [2022-11-20 09:35:40,777 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_type_indirect [2022-11-20 09:35:40,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:35:40,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:35:40,777 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_mount_wait [2022-11-20 09:35:40,778 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_mount_wait [2022-11-20 09:35:40,778 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-20 09:35:40,778 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-20 09:35:40,778 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_ioctl [2022-11-20 09:35:40,778 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_ioctl [2022-11-20 09:35:40,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 09:35:40,778 INFO L130 BoogieDeclarations]: Found specification of procedure complete_all [2022-11-20 09:35:40,781 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_all [2022-11-20 09:35:40,781 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2022-11-20 09:35:40,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2022-11-20 09:35:40,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 09:35:40,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 09:35:40,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 09:35:40,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 09:35:40,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 09:35:40,782 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_wait_release [2022-11-20 09:35:40,782 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_wait_release [2022-11-20 09:35:40,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 09:35:40,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 09:35:40,783 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_ioctl_unlocked [2022-11-20 09:35:40,783 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_ioctl_unlocked [2022-11-20 09:35:40,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 09:35:40,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 09:35:40,783 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2022-11-20 09:35:40,783 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2022-11-20 09:35:40,783 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-20 09:35:40,784 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-20 09:35:40,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-11-20 09:35:40,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-11-20 09:35:40,784 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_compat_ioctl [2022-11-20 09:35:40,784 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_compat_ioctl [2022-11-20 09:35:40,784 INFO L130 BoogieDeclarations]: Found specification of procedure read_seqretry [2022-11-20 09:35:40,784 INFO L138 BoogieDeclarations]: Found implementation of procedure read_seqretry [2022-11-20 09:35:40,785 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-20 09:35:40,785 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-20 09:35:40,785 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-20 09:35:40,785 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-20 09:35:40,785 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_readdir [2022-11-20 09:35:40,785 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_readdir [2022-11-20 09:35:40,785 INFO L130 BoogieDeclarations]: Found specification of procedure d_instantiate [2022-11-20 09:35:40,786 INFO L138 BoogieDeclarations]: Found implementation of procedure d_instantiate [2022-11-20 09:35:40,786 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 09:35:40,786 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 09:35:40,786 INFO L130 BoogieDeclarations]: Found specification of procedure may_umount_tree [2022-11-20 09:35:40,786 INFO L138 BoogieDeclarations]: Found implementation of procedure may_umount_tree [2022-11-20 09:35:40,786 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-20 09:35:40,786 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-20 09:35:40,787 INFO L130 BoogieDeclarations]: Found specification of procedure simple_statfs [2022-11-20 09:35:40,787 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_statfs [2022-11-20 09:35:40,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 09:35:40,788 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 09:35:40,792 INFO L130 BoogieDeclarations]: Found specification of procedure get_task_pid [2022-11-20 09:35:40,792 INFO L138 BoogieDeclarations]: Found implementation of procedure get_task_pid [2022-11-20 09:35:40,792 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2022-11-20 09:35:40,793 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2022-11-20 09:35:40,793 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_mount_busy [2022-11-20 09:35:40,793 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_mount_busy [2022-11-20 09:35:40,793 INFO L130 BoogieDeclarations]: Found specification of procedure d_unhashed [2022-11-20 09:35:40,793 INFO L138 BoogieDeclarations]: Found implementation of procedure d_unhashed [2022-11-20 09:35:40,793 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-20 09:35:40,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-20 09:35:40,799 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_kill_sb [2022-11-20 09:35:40,800 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_kill_sb [2022-11-20 09:35:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:35:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 09:35:40,800 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 09:35:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure generic_read_dir [2022-11-20 09:35:40,800 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_read_dir [2022-11-20 09:35:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-20 09:35:40,801 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-20 09:35:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure managed_dentry_set_managed [2022-11-20 09:35:40,801 INFO L138 BoogieDeclarations]: Found implementation of procedure managed_dentry_set_managed [2022-11-20 09:35:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 09:35:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-11-20 09:35:40,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-11-20 09:35:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2022-11-20 09:35:40,802 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2022-11-20 09:35:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 09:35:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 09:35:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 09:35:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 09:35:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 09:35:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-20 09:35:40,803 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-20 09:35:40,803 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-20 09:35:40,803 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-20 09:35:40,803 INFO L130 BoogieDeclarations]: Found specification of procedure find_autofs_mount [2022-11-20 09:35:40,803 INFO L138 BoogieDeclarations]: Found implementation of procedure find_autofs_mount [2022-11-20 09:35:40,803 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-20 09:35:40,803 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-20 09:35:40,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 09:35:40,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 09:35:40,804 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_close [2022-11-20 09:35:40,804 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_close [2022-11-20 09:35:40,804 INFO L130 BoogieDeclarations]: Found specification of procedure ns_of_pid [2022-11-20 09:35:40,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_of_pid [2022-11-20 09:35:40,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 09:35:40,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 09:35:40,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_55 [2022-11-20 09:35:40,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_55 [2022-11-20 09:35:40,805 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-20 09:35:40,805 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-20 09:35:40,805 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_clean_ino [2022-11-20 09:35:40,805 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_clean_ino [2022-11-20 09:35:40,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_49 [2022-11-20 09:35:40,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_49 [2022-11-20 09:35:40,805 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_LONG [2022-11-20 09:35:40,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_LONG [2022-11-20 09:35:40,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_77 [2022-11-20 09:35:40,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_77 [2022-11-20 09:35:40,806 INFO L130 BoogieDeclarations]: Found specification of procedure kern_path_mountpoint [2022-11-20 09:35:40,806 INFO L138 BoogieDeclarations]: Found implementation of procedure kern_path_mountpoint [2022-11-20 09:35:40,806 INFO L130 BoogieDeclarations]: Found specification of procedure get_next_positive_dentry [2022-11-20 09:35:40,806 INFO L138 BoogieDeclarations]: Found implementation of procedure get_next_positive_dentry [2022-11-20 09:35:40,806 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 09:35:40,807 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 09:35:40,807 INFO L130 BoogieDeclarations]: Found specification of procedure __managed_dentry_set_managed [2022-11-20 09:35:40,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __managed_dentry_set_managed [2022-11-20 09:35:40,807 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_wait [2022-11-20 09:35:40,807 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_wait [2022-11-20 09:35:40,807 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2022-11-20 09:35:40,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2022-11-20 09:35:40,807 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_find_wait [2022-11-20 09:35:40,808 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_find_wait [2022-11-20 09:35:40,808 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-11-20 09:35:40,809 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-11-20 09:35:40,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_exit_autofs4_fs_8_2 [2022-11-20 09:35:40,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_exit_autofs4_fs_8_2 [2022-11-20 09:35:40,810 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dentry_release [2022-11-20 09:35:40,810 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dentry_release [2022-11-20 09:35:40,810 INFO L130 BoogieDeclarations]: Found specification of procedure task_pgrp_nr [2022-11-20 09:35:40,810 INFO L138 BoogieDeclarations]: Found implementation of procedure task_pgrp_nr [2022-11-20 09:35:40,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 09:35:40,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 09:35:40,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 09:35:40,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 09:35:40,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 09:35:40,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 09:35:40,811 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2022-11-20 09:35:40,811 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2022-11-20 09:35:40,811 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_symlink [2022-11-20 09:35:40,811 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_symlink [2022-11-20 09:35:40,811 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2022-11-20 09:35:40,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2022-11-20 09:35:40,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_78 [2022-11-20 09:35:40,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_78 [2022-11-20 09:35:40,812 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2022-11-20 09:35:40,812 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2022-11-20 09:35:40,812 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-20 09:35:40,812 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-20 09:35:40,812 INFO L130 BoogieDeclarations]: Found specification of procedure d_mountpoint [2022-11-20 09:35:40,812 INFO L138 BoogieDeclarations]: Found implementation of procedure d_mountpoint [2022-11-20 09:35:40,813 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-20 09:35:40,813 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-20 09:35:40,813 INFO L130 BoogieDeclarations]: Found specification of procedure have_submounts [2022-11-20 09:35:40,813 INFO L138 BoogieDeclarations]: Found implementation of procedure have_submounts [2022-11-20 09:35:40,813 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-11-20 09:35:40,813 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-11-20 09:35:40,813 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-20 09:35:40,813 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-20 09:35:40,814 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-20 09:35:40,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-20 09:35:40,814 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-20 09:35:40,814 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-20 09:35:40,814 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_prepare_pipe [2022-11-20 09:35:40,814 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_prepare_pipe [2022-11-20 09:35:40,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 09:35:40,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 09:35:40,814 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_del_active [2022-11-20 09:35:40,815 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_del_active [2022-11-20 09:35:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-20 09:35:40,815 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-20 09:35:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-20 09:35:40,815 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-20 09:35:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure d_add [2022-11-20 09:35:40,815 INFO L138 BoogieDeclarations]: Found implementation of procedure d_add [2022-11-20 09:35:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_catatonic_mode [2022-11-20 09:35:40,816 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_catatonic_mode [2022-11-20 09:35:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure gid_eq [2022-11-20 09:35:40,816 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_eq [2022-11-20 09:35:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 09:35:40,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 09:35:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-20 09:35:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2022-11-20 09:35:40,816 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2022-11-20 09:35:42,374 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:35:42,384 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:35:42,694 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 09:35:49,037 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint switch_break: call ULTIMATE.dealloc(~#descriptor~12#1.base, ~#descriptor~12#1.offset);havoc ~#descriptor~12#1.base, ~#descriptor~12#1.offset; [2022-11-20 09:37:04,212 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 09:37:07,511 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:37:07,535 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:37:07,535 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-20 09:37:07,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:37:07 BoogieIcfgContainer [2022-11-20 09:37:07,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:37:07,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:37:07,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:37:07,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:37:07,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:35:33" (1/3) ... [2022-11-20 09:37:07,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@724252ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:37:07, skipping insertion in model container [2022-11-20 09:37:07,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:39" (2/3) ... [2022-11-20 09:37:07,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@724252ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:37:07, skipping insertion in model container [2022-11-20 09:37:07,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:37:07" (3/3) ... [2022-11-20 09:37:07,553 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i [2022-11-20 09:37:07,578 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:37:07,578 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-20 09:37:07,708 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:37:07,716 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7f9266ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:37:07,717 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-20 09:37:07,734 INFO L276 IsEmpty]: Start isEmpty. Operand has 3202 states, 2117 states have (on average 1.2975909305621163) internal successors, (2747), 2170 states have internal predecessors, (2747), 917 states have call successors, (917), 165 states have call predecessors, (917), 164 states have return successors, (906), 900 states have call predecessors, (906), 906 states have call successors, (906) [2022-11-20 09:37:07,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2022-11-20 09:37:07,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:37:07,814 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:07,815 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 09:37:07,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:07,827 INFO L85 PathProgramCache]: Analyzing trace with hash -487842455, now seen corresponding path program 1 times [2022-11-20 09:37:07,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:37:07,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983237745] [2022-11-20 09:37:07,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:07,863 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:37:07,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:37:07,875 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:37:07,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 09:37:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:10,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 2660 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:37:10,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:37:11,148 INFO L134 CoverageAnalysis]: Checked inductivity of 8646 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8514 trivial. 0 not checked. [2022-11-20 09:37:11,149 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:37:11,150 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:37:11,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983237745] [2022-11-20 09:37:11,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983237745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:11,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:11,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:37:11,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174742384] [2022-11-20 09:37:11,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:11,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:37:11,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:37:11,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:37:11,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:37:11,211 INFO L87 Difference]: Start difference. First operand has 3202 states, 2117 states have (on average 1.2975909305621163) internal successors, (2747), 2170 states have internal predecessors, (2747), 917 states have call successors, (917), 165 states have call predecessors, (917), 164 states have return successors, (906), 900 states have call predecessors, (906), 906 states have call successors, (906) Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-20 09:37:12,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:37:12,584 INFO L93 Difference]: Finished difference Result 9239 states and 13680 transitions. [2022-11-20 09:37:12,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:37:12,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 516 [2022-11-20 09:37:12,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:37:12,680 INFO L225 Difference]: With dead ends: 9239 [2022-11-20 09:37:12,681 INFO L226 Difference]: Without dead ends: 6114 [2022-11-20 09:37:12,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 514 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:37:12,740 INFO L413 NwaCegarLoop]: 5310 mSDtfsCounter, 4222 mSDsluCounter, 4384 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4222 SdHoareTripleChecker+Valid, 9694 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 09:37:12,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4222 Valid, 9694 Invalid, 54 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 09:37:12,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6114 states. [2022-11-20 09:37:13,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6114 to 6108. [2022-11-20 09:37:13,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6108 states, 4050 states have (on average 1.2723456790123457) internal successors, (5153), 4149 states have internal predecessors, (5153), 1730 states have call successors, (1730), 325 states have call predecessors, (1730), 324 states have return successors, (1726), 1714 states have call predecessors, (1726), 1726 states have call successors, (1726) [2022-11-20 09:37:13,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6108 states to 6108 states and 8609 transitions. [2022-11-20 09:37:13,380 INFO L78 Accepts]: Start accepts. Automaton has 6108 states and 8609 transitions. Word has length 516 [2022-11-20 09:37:13,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:37:13,386 INFO L495 AbstractCegarLoop]: Abstraction has 6108 states and 8609 transitions. [2022-11-20 09:37:13,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-20 09:37:13,386 INFO L276 IsEmpty]: Start isEmpty. Operand 6108 states and 8609 transitions. [2022-11-20 09:37:13,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2022-11-20 09:37:13,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:37:13,415 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:13,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 09:37:13,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:37:13,640 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 09:37:13,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:13,641 INFO L85 PathProgramCache]: Analyzing trace with hash 689435542, now seen corresponding path program 1 times [2022-11-20 09:37:13,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:37:13,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151005472] [2022-11-20 09:37:13,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:13,646 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:37:13,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:37:13,648 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:37:13,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 09:37:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:16,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 2797 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:37:16,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:37:16,905 INFO L134 CoverageAnalysis]: Checked inductivity of 8646 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8514 trivial. 0 not checked. [2022-11-20 09:37:16,905 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:37:16,905 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:37:16,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [151005472] [2022-11-20 09:37:16,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [151005472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:16,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:16,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:37:16,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282271673] [2022-11-20 09:37:16,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:16,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:37:16,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:37:16,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:37:16,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:37:16,912 INFO L87 Difference]: Start difference. First operand 6108 states and 8609 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-20 09:37:18,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:37:18,429 INFO L93 Difference]: Finished difference Result 14995 states and 21094 transitions. [2022-11-20 09:37:18,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:37:18,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 534 [2022-11-20 09:37:18,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:37:18,530 INFO L225 Difference]: With dead ends: 14995 [2022-11-20 09:37:18,530 INFO L226 Difference]: Without dead ends: 8980 [2022-11-20 09:37:18,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:37:18,573 INFO L413 NwaCegarLoop]: 5276 mSDtfsCounter, 4117 mSDsluCounter, 4387 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4117 SdHoareTripleChecker+Valid, 9663 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 09:37:18,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4117 Valid, 9663 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 09:37:18,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8980 states. [2022-11-20 09:37:19,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8980 to 8953. [2022-11-20 09:37:19,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8953 states, 5962 states have (on average 1.2705467963770547) internal successors, (7575), 6111 states have internal predecessors, (7575), 2498 states have call successors, (2498), 490 states have call predecessors, (2498), 489 states have return successors, (2498), 2473 states have call predecessors, (2498), 2494 states have call successors, (2498) [2022-11-20 09:37:19,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8953 states to 8953 states and 12571 transitions. [2022-11-20 09:37:19,470 INFO L78 Accepts]: Start accepts. Automaton has 8953 states and 12571 transitions. Word has length 534 [2022-11-20 09:37:19,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:37:19,472 INFO L495 AbstractCegarLoop]: Abstraction has 8953 states and 12571 transitions. [2022-11-20 09:37:19,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-20 09:37:19,473 INFO L276 IsEmpty]: Start isEmpty. Operand 8953 states and 12571 transitions. [2022-11-20 09:37:19,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2022-11-20 09:37:19,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:37:19,494 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:19,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 09:37:19,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:37:19,713 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 09:37:19,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:19,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1238743847, now seen corresponding path program 1 times [2022-11-20 09:37:19,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:37:19,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1128461441] [2022-11-20 09:37:19,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:19,723 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:37:19,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:37:19,724 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:37:19,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 09:37:22,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:22,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 2823 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:37:22,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:37:22,695 INFO L134 CoverageAnalysis]: Checked inductivity of 8646 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8514 trivial. 0 not checked. [2022-11-20 09:37:22,695 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:37:22,695 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:37:22,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1128461441] [2022-11-20 09:37:22,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1128461441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:22,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:22,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:37:22,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12511625] [2022-11-20 09:37:22,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:22,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:37:22,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:37:22,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:37:22,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:37:22,700 INFO L87 Difference]: Start difference. First operand 8953 states and 12571 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-20 09:37:24,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:37:24,369 INFO L93 Difference]: Finished difference Result 22473 states and 31426 transitions. [2022-11-20 09:37:24,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:37:24,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 535 [2022-11-20 09:37:24,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:37:24,510 INFO L225 Difference]: With dead ends: 22473 [2022-11-20 09:37:24,510 INFO L226 Difference]: Without dead ends: 13613 [2022-11-20 09:37:24,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:37:24,570 INFO L413 NwaCegarLoop]: 5233 mSDtfsCounter, 3629 mSDsluCounter, 4387 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3629 SdHoareTripleChecker+Valid, 9620 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 09:37:24,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3629 Valid, 9620 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 09:37:24,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13613 states. [2022-11-20 09:37:25,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13613 to 13583. [2022-11-20 09:37:25,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13583 states, 9036 states have (on average 1.2627268702965915) internal successors, (11410), 9262 states have internal predecessors, (11410), 3753 states have call successors, (3753), 791 states have call predecessors, (3753), 790 states have return successors, (3765), 3713 states have call predecessors, (3765), 3749 states have call successors, (3765) [2022-11-20 09:37:25,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13583 states to 13583 states and 18928 transitions. [2022-11-20 09:37:25,917 INFO L78 Accepts]: Start accepts. Automaton has 13583 states and 18928 transitions. Word has length 535 [2022-11-20 09:37:25,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:37:25,920 INFO L495 AbstractCegarLoop]: Abstraction has 13583 states and 18928 transitions. [2022-11-20 09:37:25,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-20 09:37:25,922 INFO L276 IsEmpty]: Start isEmpty. Operand 13583 states and 18928 transitions. [2022-11-20 09:37:25,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2022-11-20 09:37:25,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:37:25,934 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:25,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 09:37:26,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:37:26,156 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 09:37:26,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:26,156 INFO L85 PathProgramCache]: Analyzing trace with hash -544590229, now seen corresponding path program 1 times [2022-11-20 09:37:26,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:37:26,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1929766577] [2022-11-20 09:37:26,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:26,161 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:37:26,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:37:26,175 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:37:26,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 09:37:28,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:28,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 2789 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:37:28,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:37:29,065 INFO L134 CoverageAnalysis]: Checked inductivity of 8646 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8514 trivial. 0 not checked. [2022-11-20 09:37:29,065 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:37:29,065 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:37:29,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1929766577] [2022-11-20 09:37:29,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1929766577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:29,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:29,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:37:29,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101127712] [2022-11-20 09:37:29,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:29,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:37:29,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:37:29,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:37:29,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:37:29,069 INFO L87 Difference]: Start difference. First operand 13583 states and 18928 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-20 09:37:30,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:37:30,884 INFO L93 Difference]: Finished difference Result 36944 states and 51307 transitions. [2022-11-20 09:37:30,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:37:30,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 534 [2022-11-20 09:37:30,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:37:31,218 INFO L225 Difference]: With dead ends: 36944 [2022-11-20 09:37:31,218 INFO L226 Difference]: Without dead ends: 23454 [2022-11-20 09:37:31,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:37:31,276 INFO L413 NwaCegarLoop]: 5274 mSDtfsCounter, 3922 mSDsluCounter, 4424 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3922 SdHoareTripleChecker+Valid, 9698 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 09:37:31,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3922 Valid, 9698 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 09:37:31,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23454 states. [2022-11-20 09:37:33,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23454 to 23422. [2022-11-20 09:37:33,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23422 states, 15640 states have (on average 1.2586317135549872) internal successors, (19685), 16014 states have internal predecessors, (19685), 6371 states have call successors, (6371), 1408 states have call predecessors, (6371), 1407 states have return successors, (6399), 6304 states have call predecessors, (6399), 6367 states have call successors, (6399) [2022-11-20 09:37:33,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23422 states to 23422 states and 32455 transitions. [2022-11-20 09:37:33,481 INFO L78 Accepts]: Start accepts. Automaton has 23422 states and 32455 transitions. Word has length 534 [2022-11-20 09:37:33,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:37:33,482 INFO L495 AbstractCegarLoop]: Abstraction has 23422 states and 32455 transitions. [2022-11-20 09:37:33,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-20 09:37:33,483 INFO L276 IsEmpty]: Start isEmpty. Operand 23422 states and 32455 transitions. [2022-11-20 09:37:33,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2022-11-20 09:37:33,495 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:37:33,496 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:33,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 09:37:33,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:37:33,701 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 09:37:33,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:33,702 INFO L85 PathProgramCache]: Analyzing trace with hash 2010641781, now seen corresponding path program 1 times [2022-11-20 09:37:33,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:37:33,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1542352679] [2022-11-20 09:37:33,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:33,705 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:37:33,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:37:33,706 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:37:33,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 09:37:36,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:36,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 2874 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:37:36,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:37:36,710 INFO L134 CoverageAnalysis]: Checked inductivity of 8652 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8520 trivial. 0 not checked. [2022-11-20 09:37:36,711 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:37:36,711 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:37:36,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1542352679] [2022-11-20 09:37:36,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1542352679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:36,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:36,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:37:36,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715873572] [2022-11-20 09:37:36,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:36,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:37:36,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:37:36,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:37:36,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:37:36,715 INFO L87 Difference]: Start difference. First operand 23422 states and 32455 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-20 09:37:39,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:37:39,279 INFO L93 Difference]: Finished difference Result 64736 states and 89572 transitions. [2022-11-20 09:37:39,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:37:39,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) Word has length 539 [2022-11-20 09:37:39,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:37:39,730 INFO L225 Difference]: With dead ends: 64736 [2022-11-20 09:37:39,730 INFO L226 Difference]: Without dead ends: 41407 [2022-11-20 09:37:39,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 538 GetRequests, 537 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:37:39,852 INFO L413 NwaCegarLoop]: 5339 mSDtfsCounter, 3941 mSDsluCounter, 4412 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3941 SdHoareTripleChecker+Valid, 9751 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 09:37:39,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3941 Valid, 9751 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 09:37:39,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41407 states. [2022-11-20 09:37:43,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41407 to 41367. [2022-11-20 09:37:43,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41367 states, 27694 states have (on average 1.2576370332924098) internal successors, (34829), 28341 states have internal predecessors, (34829), 11138 states have call successors, (11138), 2532 states have call predecessors, (11138), 2531 states have return successors, (11198), 10991 states have call predecessors, (11198), 11134 states have call successors, (11198) [2022-11-20 09:37:44,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41367 states to 41367 states and 57165 transitions. [2022-11-20 09:37:44,089 INFO L78 Accepts]: Start accepts. Automaton has 41367 states and 57165 transitions. Word has length 539 [2022-11-20 09:37:44,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:37:44,091 INFO L495 AbstractCegarLoop]: Abstraction has 41367 states and 57165 transitions. [2022-11-20 09:37:44,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-20 09:37:44,092 INFO L276 IsEmpty]: Start isEmpty. Operand 41367 states and 57165 transitions. [2022-11-20 09:37:44,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2022-11-20 09:37:44,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:37:44,108 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:44,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 09:37:44,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:37:44,332 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 09:37:44,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:44,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1058216969, now seen corresponding path program 1 times [2022-11-20 09:37:44,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:37:44,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512460313] [2022-11-20 09:37:44,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:44,337 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:37:44,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:37:44,339 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:37:44,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 09:37:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:47,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 3044 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:37:47,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:37:48,121 INFO L134 CoverageAnalysis]: Checked inductivity of 8649 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8517 trivial. 0 not checked. [2022-11-20 09:37:48,121 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:37:48,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:37:48,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [512460313] [2022-11-20 09:37:48,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [512460313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:48,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:48,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:37:48,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773431666] [2022-11-20 09:37:48,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:48,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:37:48,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:37:48,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:37:48,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:37:48,125 INFO L87 Difference]: Start difference. First operand 41367 states and 57165 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-20 09:37:53,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:37:53,054 INFO L93 Difference]: Finished difference Result 114706 states and 158477 transitions. [2022-11-20 09:37:53,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:37:53,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 570 [2022-11-20 09:37:53,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:37:53,617 INFO L225 Difference]: With dead ends: 114706 [2022-11-20 09:37:53,617 INFO L226 Difference]: Without dead ends: 73432 [2022-11-20 09:37:53,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 568 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:37:53,831 INFO L413 NwaCegarLoop]: 5536 mSDtfsCounter, 4135 mSDsluCounter, 4387 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4135 SdHoareTripleChecker+Valid, 9923 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 09:37:53,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4135 Valid, 9923 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 09:37:53,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73432 states. [2022-11-20 09:37:59,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73432 to 73312. [2022-11-20 09:37:59,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73312 states, 49159 states have (on average 1.2576130515266788) internal successors, (61823), 50366 states have internal predecessors, (61823), 19580 states have call successors, (19580), 4582 states have call predecessors, (19580), 4569 states have return successors, (19752), 19289 states have call predecessors, (19752), 19576 states have call successors, (19752) [2022-11-20 09:38:00,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73312 states to 73312 states and 101155 transitions. [2022-11-20 09:38:00,469 INFO L78 Accepts]: Start accepts. Automaton has 73312 states and 101155 transitions. Word has length 570 [2022-11-20 09:38:00,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:38:00,470 INFO L495 AbstractCegarLoop]: Abstraction has 73312 states and 101155 transitions. [2022-11-20 09:38:00,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-20 09:38:00,471 INFO L276 IsEmpty]: Start isEmpty. Operand 73312 states and 101155 transitions. [2022-11-20 09:38:00,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2022-11-20 09:38:00,479 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:38:00,480 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 44, 44, 44, 44, 44, 44, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:38:00,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 09:38:00,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:38:00,704 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 09:38:00,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:38:00,705 INFO L85 PathProgramCache]: Analyzing trace with hash -2040865198, now seen corresponding path program 1 times [2022-11-20 09:38:00,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:38:00,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684421163] [2022-11-20 09:38:00,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:38:00,708 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:38:00,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:38:00,710 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:38:00,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39f00c7-557e-4321-8f2c-fe6937eec29b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 09:38:03,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:38:03,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 2773 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 09:38:03,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:38:04,197 INFO L134 CoverageAnalysis]: Checked inductivity of 9098 backedges. 309 proven. 0 refuted. 0 times theorem prover too weak. 8789 trivial. 0 not checked. [2022-11-20 09:38:04,198 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:38:04,198 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:38:04,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684421163] [2022-11-20 09:38:04,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684421163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:38:04,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:38:04,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 09:38:04,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673846918] [2022-11-20 09:38:04,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:38:04,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 09:38:04,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:38:04,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 09:38:04,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 09:38:04,203 INFO L87 Difference]: Start difference. First operand 73312 states and 101155 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (56), 2 states have call predecessors, (56), 3 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-20 09:38:16,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:38:16,895 INFO L93 Difference]: Finished difference Result 175142 states and 246356 transitions. [2022-11-20 09:38:16,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 09:38:16,896 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (56), 2 states have call predecessors, (56), 3 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) Word has length 581 [2022-11-20 09:38:16,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:38:17,740 INFO L225 Difference]: With dead ends: 175142 [2022-11-20 09:38:17,741 INFO L226 Difference]: Without dead ends: 102098 [2022-11-20 09:38:18,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 586 GetRequests, 576 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-20 09:38:18,144 INFO L413 NwaCegarLoop]: 5625 mSDtfsCounter, 3164 mSDsluCounter, 31316 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 1001 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3414 SdHoareTripleChecker+Valid, 36941 SdHoareTripleChecker+Invalid, 1612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1001 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-20 09:38:18,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3414 Valid, 36941 Invalid, 1612 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1001 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-20 09:38:18,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102098 states.