./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3d612e3d3aaa54cbaaae78896c02f6ca9c3968df93584b0bde88897a60cfa04a --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 15:15:14,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 15:15:14,821 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 15:15:14,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 15:15:14,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 15:15:14,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 15:15:14,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 15:15:14,874 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 15:15:14,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 15:15:14,880 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 15:15:14,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 15:15:14,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 15:15:14,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 15:15:14,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 15:15:14,886 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 15:15:14,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 15:15:14,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 15:15:14,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 15:15:14,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 15:15:14,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 15:15:14,899 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 15:15:14,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 15:15:14,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 15:15:14,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 15:15:14,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 15:15:14,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 15:15:14,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 15:15:14,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 15:15:14,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 15:15:14,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 15:15:14,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 15:15:14,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 15:15:14,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 15:15:14,916 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 15:15:14,916 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 15:15:14,917 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 15:15:14,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 15:15:14,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 15:15:14,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 15:15:14,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 15:15:14,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 15:15:14,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 15:15:14,922 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 15:15:14,950 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 15:15:14,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 15:15:14,951 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 15:15:14,951 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 15:15:14,952 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 15:15:14,952 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 15:15:14,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 15:15:14,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 15:15:14,953 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 15:15:14,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 15:15:14,954 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 15:15:14,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 15:15:14,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 15:15:14,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 15:15:14,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 15:15:14,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 15:15:14,956 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 15:15:14,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 15:15:14,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 15:15:14,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 15:15:14,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 15:15:14,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:15:14,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 15:15:14,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 15:15:14,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 15:15:14,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 15:15:14,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 15:15:14,958 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 15:15:14,958 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 15:15:14,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 15:15:14,959 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d612e3d3aaa54cbaaae78896c02f6ca9c3968df93584b0bde88897a60cfa04a [2022-07-12 15:15:15,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 15:15:15,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 15:15:15,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 15:15:15,233 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 15:15:15,233 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 15:15:15,235 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i [2022-07-12 15:15:15,300 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78e168e7d/654a17d51dfa466cb6de38404d42305f/FLAG3544b02d2 [2022-07-12 15:15:16,031 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 15:15:16,032 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i [2022-07-12 15:15:16,077 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78e168e7d/654a17d51dfa466cb6de38404d42305f/FLAG3544b02d2 [2022-07-12 15:15:16,301 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78e168e7d/654a17d51dfa466cb6de38404d42305f [2022-07-12 15:15:16,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 15:15:16,304 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 15:15:16,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 15:15:16,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 15:15:16,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 15:15:16,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:15:16" (1/1) ... [2022-07-12 15:15:16,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3144cc59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:15:16, skipping insertion in model container [2022-07-12 15:15:16,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:15:16" (1/1) ... [2022-07-12 15:15:16,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 15:15:16,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 15:15:18,633 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319618,319631] [2022-07-12 15:15:18,636 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319787,319800] [2022-07-12 15:15:18,636 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319954,319967] [2022-07-12 15:15:18,637 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[320122,320135] [2022-07-12 15:15:18,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:15:18,710 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 15:15:19,016 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319618,319631] [2022-07-12 15:15:19,017 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319787,319800] [2022-07-12 15:15:19,017 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319954,319967] [2022-07-12 15:15:19,017 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[320122,320135] [2022-07-12 15:15:19,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:15:19,188 INFO L208 MainTranslator]: Completed translation [2022-07-12 15:15:19,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:15:19 WrapperNode [2022-07-12 15:15:19,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 15:15:19,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 15:15:19,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 15:15:19,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 15:15:19,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:15:19" (1/1) ... [2022-07-12 15:15:19,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:15:19" (1/1) ... [2022-07-12 15:15:19,482 INFO L137 Inliner]: procedures = 434, calls = 1806, calls flagged for inlining = 214, calls inlined = 197, statements flattened = 4338 [2022-07-12 15:15:19,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 15:15:19,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 15:15:19,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 15:15:19,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 15:15:19,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:15:19" (1/1) ... [2022-07-12 15:15:19,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:15:19" (1/1) ... [2022-07-12 15:15:19,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:15:19" (1/1) ... [2022-07-12 15:15:19,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:15:19" (1/1) ... [2022-07-12 15:15:19,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:15:19" (1/1) ... [2022-07-12 15:15:19,675 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:15:19" (1/1) ... [2022-07-12 15:15:19,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:15:19" (1/1) ... [2022-07-12 15:15:19,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 15:15:19,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 15:15:19,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 15:15:19,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 15:15:19,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:15:19" (1/1) ... [2022-07-12 15:15:19,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:15:19,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 15:15:19,757 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 15:15:19,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 15:15:19,789 INFO L130 BoogieDeclarations]: Found specification of procedure getlinkstatus [2022-07-12 15:15:19,789 INFO L138 BoogieDeclarations]: Found implementation of procedure getlinkstatus [2022-07-12 15:15:19,789 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-07-12 15:15:19,789 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-07-12 15:15:19,789 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-12 15:15:19,789 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-12 15:15:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 15:15:19,790 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 15:15:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-12 15:15:19,790 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-12 15:15:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 15:15:19,790 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 15:15:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 15:15:19,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 15:15:19,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 15:15:19,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 15:15:19,791 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 15:15:19,791 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 15:15:19,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_79 [2022-07-12 15:15:19,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_79 [2022-07-12 15:15:19,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_67 [2022-07-12 15:15:19,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_67 [2022-07-12 15:15:19,792 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-12 15:15:19,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-12 15:15:19,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-12 15:15:19,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-12 15:15:19,792 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-12 15:15:19,792 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-12 15:15:19,793 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-12 15:15:19,793 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-12 15:15:19,793 INFO L130 BoogieDeclarations]: Found specification of procedure fealnx_tx_timeout [2022-07-12 15:15:19,793 INFO L138 BoogieDeclarations]: Found implementation of procedure fealnx_tx_timeout [2022-07-12 15:15:19,793 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-12 15:15:19,794 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-12 15:15:19,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 15:15:19,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 15:15:19,794 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 15:15:19,794 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 15:15:19,794 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2022-07-12 15:15:19,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2022-07-12 15:15:19,795 INFO L130 BoogieDeclarations]: Found specification of procedure getlinktype [2022-07-12 15:15:19,795 INFO L138 BoogieDeclarations]: Found implementation of procedure getlinktype [2022-07-12 15:15:19,795 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-12 15:15:19,795 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-12 15:15:19,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 15:15:19,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-07-12 15:15:19,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-07-12 15:15:19,796 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 15:15:19,796 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 15:15:19,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-12 15:15:19,797 INFO L130 BoogieDeclarations]: Found specification of procedure reset_rx_descriptors [2022-07-12 15:15:19,797 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_rx_descriptors [2022-07-12 15:15:19,798 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 15:15:19,798 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 15:15:19,798 INFO L130 BoogieDeclarations]: Found specification of procedure fealnx_remove_one [2022-07-12 15:15:19,798 INFO L138 BoogieDeclarations]: Found implementation of procedure fealnx_remove_one [2022-07-12 15:15:19,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-12 15:15:19,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-12 15:15:19,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-12 15:15:19,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 15:15:19,799 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-07-12 15:15:19,799 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-07-12 15:15:19,799 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 15:15:19,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 15:15:19,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-12 15:15:19,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-12 15:15:19,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-12 15:15:19,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-12 15:15:19,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-12 15:15:19,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-12 15:15:19,801 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-12 15:15:19,801 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-12 15:15:19,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 15:15:19,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 15:15:19,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 15:15:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-12 15:15:19,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-12 15:15:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-12 15:15:19,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-12 15:15:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 15:15:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2022-07-12 15:15:19,802 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2022-07-12 15:15:19,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 15:15:19,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 15:15:19,803 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 15:15:19,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 15:15:19,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 15:15:19,804 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 15:15:19,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 15:15:19,805 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-12 15:15:19,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-12 15:15:19,805 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-07-12 15:15:19,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-07-12 15:15:19,805 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-12 15:15:19,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-12 15:15:19,805 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 15:15:19,805 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 15:15:19,806 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-12 15:15:19,806 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-12 15:15:19,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-12 15:15:19,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-12 15:15:19,806 INFO L130 BoogieDeclarations]: Found specification of procedure stop_nic_rx [2022-07-12 15:15:19,806 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_nic_rx [2022-07-12 15:15:19,806 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-07-12 15:15:19,807 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-07-12 15:15:19,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 15:15:19,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 15:15:19,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 15:15:19,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 15:15:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 15:15:19,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 15:15:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2022-07-12 15:15:19,809 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2022-07-12 15:15:19,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 15:15:19,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 15:15:19,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-12 15:15:19,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-12 15:15:19,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2022-07-12 15:15:19,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2022-07-12 15:15:19,813 INFO L130 BoogieDeclarations]: Found specification of procedure enable_rxtx [2022-07-12 15:15:19,813 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_rxtx [2022-07-12 15:15:19,813 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-12 15:15:19,817 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-12 15:15:19,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 15:15:19,818 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 15:15:19,818 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 15:15:19,818 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 15:15:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-12 15:15:19,819 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-12 15:15:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_78 [2022-07-12 15:15:19,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_78 [2022-07-12 15:15:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-12 15:15:19,819 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-12 15:15:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-12 15:15:19,819 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-12 15:15:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 15:15:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure reset_and_disable_rxtx [2022-07-12 15:15:19,820 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_and_disable_rxtx [2022-07-12 15:15:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-12 15:15:19,820 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-12 15:15:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 15:15:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-12 15:15:19,820 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-12 15:15:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 15:15:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-12 15:15:19,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-12 15:15:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 15:15:19,821 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 15:15:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2022-07-12 15:15:19,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2022-07-12 15:15:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-12 15:15:19,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-12 15:15:19,822 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2022-07-12 15:15:19,822 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2022-07-12 15:15:19,822 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-12 15:15:19,822 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-12 15:15:19,822 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 15:15:19,822 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 15:15:19,822 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-12 15:15:19,822 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-12 15:15:19,823 INFO L130 BoogieDeclarations]: Found specification of procedure stop_nic_rxtx [2022-07-12 15:15:19,823 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_nic_rxtx [2022-07-12 15:15:19,823 INFO L130 BoogieDeclarations]: Found specification of procedure m80x_send_cmd_to_phy [2022-07-12 15:15:19,823 INFO L138 BoogieDeclarations]: Found implementation of procedure m80x_send_cmd_to_phy [2022-07-12 15:15:19,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 15:15:19,823 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffers [2022-07-12 15:15:19,823 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffers [2022-07-12 15:15:19,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 15:15:19,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 15:15:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-12 15:15:19,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-12 15:15:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-12 15:15:19,824 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-12 15:15:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-12 15:15:19,824 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-12 15:15:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 15:15:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-12 15:15:19,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-12 15:15:19,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_fealnx_exit_14_2 [2022-07-12 15:15:19,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_fealnx_exit_14_2 [2022-07-12 15:15:20,698 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 15:15:20,701 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 15:15:21,226 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 15:15:23,170 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-12 15:15:23,231 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 15:15:23,254 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 15:15:23,256 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 15:15:23,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:15:23 BoogieIcfgContainer [2022-07-12 15:15:23,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 15:15:23,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 15:15:23,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 15:15:23,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 15:15:23,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 03:15:16" (1/3) ... [2022-07-12 15:15:23,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a80dc2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:15:23, skipping insertion in model container [2022-07-12 15:15:23,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:15:19" (2/3) ... [2022-07-12 15:15:23,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a80dc2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:15:23, skipping insertion in model container [2022-07-12 15:15:23,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:15:23" (3/3) ... [2022-07-12 15:15:23,269 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i [2022-07-12 15:15:23,281 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 15:15:23,281 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-12 15:15:23,388 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 15:15:23,394 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6ef5c4f8, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1fd4eabc [2022-07-12 15:15:23,394 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-12 15:15:23,404 INFO L276 IsEmpty]: Start isEmpty. Operand has 1644 states, 1171 states have (on average 1.3330486763450042) internal successors, (1561), 1192 states have internal predecessors, (1561), 389 states have call successors, (389), 82 states have call predecessors, (389), 81 states have return successors, (383), 380 states have call predecessors, (383), 383 states have call successors, (383) [2022-07-12 15:15:23,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-12 15:15:23,434 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:15:23,435 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:15:23,436 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:15:23,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:15:23,442 INFO L85 PathProgramCache]: Analyzing trace with hash -726517349, now seen corresponding path program 1 times [2022-07-12 15:15:23,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:15:23,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495988899] [2022-07-12 15:15:23,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:15:23,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:15:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:23,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:15:23,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:23,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:24,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:15:24,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:24,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:24,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:15:24,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:24,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:24,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:15:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:24,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:24,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:24,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:15:24,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:24,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:24,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:24,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:15:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:24,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:24,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:15:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:24,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:24,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:15:24,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:24,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:24,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:15:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:24,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:24,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:24,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:15:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:24,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 15:15:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:24,169 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-12 15:15:24,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:15:24,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495988899] [2022-07-12 15:15:24,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495988899] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:15:24,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:15:24,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:15:24,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528689609] [2022-07-12 15:15:24,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:15:24,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:15:24,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:15:24,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:15:24,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:15:24,219 INFO L87 Difference]: Start difference. First operand has 1644 states, 1171 states have (on average 1.3330486763450042) internal successors, (1561), 1192 states have internal predecessors, (1561), 389 states have call successors, (389), 82 states have call predecessors, (389), 81 states have return successors, (383), 380 states have call predecessors, (383), 383 states have call successors, (383) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 15:15:27,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:15:27,750 INFO L93 Difference]: Finished difference Result 4887 states and 7137 transitions. [2022-07-12 15:15:27,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:15:27,753 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 127 [2022-07-12 15:15:27,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:15:27,806 INFO L225 Difference]: With dead ends: 4887 [2022-07-12 15:15:27,806 INFO L226 Difference]: Without dead ends: 3256 [2022-07-12 15:15:27,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:15:27,828 INFO L413 NwaCegarLoop]: 2357 mSDtfsCounter, 3116 mSDsluCounter, 1980 mSDsCounter, 0 mSdLazyCounter, 1884 mSolverCounterSat, 1146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3458 SdHoareTripleChecker+Valid, 4337 SdHoareTripleChecker+Invalid, 3030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1146 IncrementalHoareTripleChecker+Valid, 1884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:15:27,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3458 Valid, 4337 Invalid, 3030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1146 Valid, 1884 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-12 15:15:27,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3256 states. [2022-07-12 15:15:28,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3256 to 3156. [2022-07-12 15:15:28,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3156 states, 2271 states have (on average 1.2813738441215323) internal successors, (2910), 2312 states have internal predecessors, (2910), 724 states have call successors, (724), 159 states have call predecessors, (724), 158 states have return successors, (720), 714 states have call predecessors, (720), 720 states have call successors, (720) [2022-07-12 15:15:28,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3156 states to 3156 states and 4354 transitions. [2022-07-12 15:15:28,083 INFO L78 Accepts]: Start accepts. Automaton has 3156 states and 4354 transitions. Word has length 127 [2022-07-12 15:15:28,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:15:28,086 INFO L495 AbstractCegarLoop]: Abstraction has 3156 states and 4354 transitions. [2022-07-12 15:15:28,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 15:15:28,086 INFO L276 IsEmpty]: Start isEmpty. Operand 3156 states and 4354 transitions. [2022-07-12 15:15:28,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-07-12 15:15:28,090 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:15:28,090 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:15:28,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 15:15:28,091 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:15:28,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:15:28,091 INFO L85 PathProgramCache]: Analyzing trace with hash 178024828, now seen corresponding path program 1 times [2022-07-12 15:15:28,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:15:28,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477809843] [2022-07-12 15:15:28,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:15:28,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:15:28,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:28,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:15:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:28,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:28,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:15:28,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:28,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:28,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:15:28,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:28,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:28,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:28,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:15:28,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:28,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:28,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:28,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:15:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:28,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:28,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:15:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:28,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:28,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:15:28,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:28,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:28,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:15:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:28,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:28,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:28,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:15:28,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:28,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:28,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:28,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:15:28,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:28,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 15:15:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:28,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 15:15:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:28,427 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-12 15:15:28,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:15:28,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477809843] [2022-07-12 15:15:28,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477809843] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:15:28,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:15:28,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:15:28,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855187623] [2022-07-12 15:15:28,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:15:28,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:15:28,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:15:28,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:15:28,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:15:28,432 INFO L87 Difference]: Start difference. First operand 3156 states and 4354 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-12 15:15:31,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:15:31,719 INFO L93 Difference]: Finished difference Result 9118 states and 12601 transitions. [2022-07-12 15:15:31,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:15:31,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 129 [2022-07-12 15:15:31,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:15:31,760 INFO L225 Difference]: With dead ends: 9118 [2022-07-12 15:15:31,760 INFO L226 Difference]: Without dead ends: 5985 [2022-07-12 15:15:31,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:15:31,778 INFO L413 NwaCegarLoop]: 2370 mSDtfsCounter, 2835 mSDsluCounter, 2039 mSDsCounter, 0 mSdLazyCounter, 1783 mSolverCounterSat, 1137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3128 SdHoareTripleChecker+Valid, 4409 SdHoareTripleChecker+Invalid, 2920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1137 IncrementalHoareTripleChecker+Valid, 1783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-12 15:15:31,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3128 Valid, 4409 Invalid, 2920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1137 Valid, 1783 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-12 15:15:31,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5985 states. [2022-07-12 15:15:32,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5985 to 5787. [2022-07-12 15:15:32,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5787 states, 4162 states have (on average 1.2765497357039886) internal successors, (5313), 4242 states have internal predecessors, (5313), 1309 states have call successors, (1309), 308 states have call predecessors, (1309), 313 states have return successors, (1337), 1284 states have call predecessors, (1337), 1305 states have call successors, (1337) [2022-07-12 15:15:32,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5787 states to 5787 states and 7959 transitions. [2022-07-12 15:15:32,060 INFO L78 Accepts]: Start accepts. Automaton has 5787 states and 7959 transitions. Word has length 129 [2022-07-12 15:15:32,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:15:32,062 INFO L495 AbstractCegarLoop]: Abstraction has 5787 states and 7959 transitions. [2022-07-12 15:15:32,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-12 15:15:32,063 INFO L276 IsEmpty]: Start isEmpty. Operand 5787 states and 7959 transitions. [2022-07-12 15:15:32,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-07-12 15:15:32,069 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:15:32,069 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:15:32,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 15:15:32,070 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:15:32,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:15:32,071 INFO L85 PathProgramCache]: Analyzing trace with hash 996500562, now seen corresponding path program 1 times [2022-07-12 15:15:32,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:15:32,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930525242] [2022-07-12 15:15:32,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:15:32,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:15:32,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:32,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:15:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:32,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:32,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:32,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:15:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:32,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:32,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:15:32,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:32,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:32,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:15:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:32,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:32,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:15:32,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:32,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:32,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:32,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:15:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:32,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:32,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:15:32,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:32,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:32,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:32,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:15:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:32,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:32,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:15:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:32,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:32,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:15:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:32,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 15:15:32,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:32,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 15:15:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:32,343 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-12 15:15:32,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:15:32,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930525242] [2022-07-12 15:15:32,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930525242] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:15:32,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:15:32,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:15:32,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858919500] [2022-07-12 15:15:32,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:15:32,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:15:32,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:15:32,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:15:32,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:15:32,349 INFO L87 Difference]: Start difference. First operand 5787 states and 7959 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-12 15:15:35,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:15:35,496 INFO L93 Difference]: Finished difference Result 17309 states and 23874 transitions. [2022-07-12 15:15:35,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:15:35,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 132 [2022-07-12 15:15:35,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:15:35,571 INFO L225 Difference]: With dead ends: 17309 [2022-07-12 15:15:35,571 INFO L226 Difference]: Without dead ends: 11545 [2022-07-12 15:15:35,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:15:35,610 INFO L413 NwaCegarLoop]: 2853 mSDtfsCounter, 2814 mSDsluCounter, 2219 mSDsCounter, 0 mSdLazyCounter, 1782 mSolverCounterSat, 1099 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3130 SdHoareTripleChecker+Valid, 5072 SdHoareTripleChecker+Invalid, 2881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1099 IncrementalHoareTripleChecker+Valid, 1782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-12 15:15:35,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3130 Valid, 5072 Invalid, 2881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1099 Valid, 1782 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-12 15:15:35,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11545 states. [2022-07-12 15:15:36,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11545 to 11165. [2022-07-12 15:15:36,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11165 states, 8076 states have (on average 1.279470034670629) internal successors, (10333), 8238 states have internal predecessors, (10333), 2479 states have call successors, (2479), 608 states have call predecessors, (2479), 607 states have return successors, (2539), 2414 states have call predecessors, (2539), 2475 states have call successors, (2539) [2022-07-12 15:15:36,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11165 states to 11165 states and 15351 transitions. [2022-07-12 15:15:36,203 INFO L78 Accepts]: Start accepts. Automaton has 11165 states and 15351 transitions. Word has length 132 [2022-07-12 15:15:36,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:15:36,204 INFO L495 AbstractCegarLoop]: Abstraction has 11165 states and 15351 transitions. [2022-07-12 15:15:36,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-12 15:15:36,204 INFO L276 IsEmpty]: Start isEmpty. Operand 11165 states and 15351 transitions. [2022-07-12 15:15:36,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-12 15:15:36,206 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:15:36,207 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:15:36,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 15:15:36,207 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:15:36,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:15:36,207 INFO L85 PathProgramCache]: Analyzing trace with hash 906528010, now seen corresponding path program 1 times [2022-07-12 15:15:36,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:15:36,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667260053] [2022-07-12 15:15:36,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:15:36,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:15:36,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:36,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:15:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:36,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:36,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:36,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:15:36,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:36,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:36,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:36,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:15:36,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:36,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:36,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:36,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:15:36,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:36,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:36,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:36,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:15:36,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:36,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:36,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:15:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:36,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:36,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:15:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:36,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:36,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:15:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:36,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:36,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:15:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:36,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:36,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:15:36,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:36,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 15:15:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:36,457 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-12 15:15:36,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:15:36,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667260053] [2022-07-12 15:15:36,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667260053] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:15:36,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:15:36,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:15:36,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651096188] [2022-07-12 15:15:36,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:15:36,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:15:36,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:15:36,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:15:36,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:15:36,460 INFO L87 Difference]: Start difference. First operand 11165 states and 15351 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 15:15:39,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:15:39,868 INFO L93 Difference]: Finished difference Result 32581 states and 44986 transitions. [2022-07-12 15:15:39,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:15:39,869 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 134 [2022-07-12 15:15:39,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:15:39,995 INFO L225 Difference]: With dead ends: 32581 [2022-07-12 15:15:39,995 INFO L226 Difference]: Without dead ends: 21439 [2022-07-12 15:15:40,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:15:40,053 INFO L413 NwaCegarLoop]: 2327 mSDtfsCounter, 2863 mSDsluCounter, 1960 mSDsCounter, 0 mSdLazyCounter, 1886 mSolverCounterSat, 1164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3178 SdHoareTripleChecker+Valid, 4287 SdHoareTripleChecker+Invalid, 3050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1164 IncrementalHoareTripleChecker+Valid, 1886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-12 15:15:40,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3178 Valid, 4287 Invalid, 3050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1164 Valid, 1886 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-12 15:15:40,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21439 states. [2022-07-12 15:15:40,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21439 to 20707. [2022-07-12 15:15:40,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20707 states, 14890 states have (on average 1.2815983881799866) internal successors, (19083), 15204 states have internal predecessors, (19083), 4645 states have call successors, (4645), 1174 states have call predecessors, (4645), 1169 states have return successors, (4769), 4504 states have call predecessors, (4769), 4641 states have call successors, (4769) [2022-07-12 15:15:41,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20707 states to 20707 states and 28497 transitions. [2022-07-12 15:15:41,043 INFO L78 Accepts]: Start accepts. Automaton has 20707 states and 28497 transitions. Word has length 134 [2022-07-12 15:15:41,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:15:41,045 INFO L495 AbstractCegarLoop]: Abstraction has 20707 states and 28497 transitions. [2022-07-12 15:15:41,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 15:15:41,045 INFO L276 IsEmpty]: Start isEmpty. Operand 20707 states and 28497 transitions. [2022-07-12 15:15:41,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-12 15:15:41,047 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:15:41,048 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:15:41,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 15:15:41,048 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:15:41,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:15:41,050 INFO L85 PathProgramCache]: Analyzing trace with hash -288906839, now seen corresponding path program 1 times [2022-07-12 15:15:41,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:15:41,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459312525] [2022-07-12 15:15:41,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:15:41,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:15:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:41,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:15:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:41,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:41,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:41,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:15:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:41,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:41,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:41,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:15:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:41,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:41,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:15:41,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:41,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:41,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:41,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:15:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:41,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:41,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:15:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:41,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:41,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:15:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:41,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:41,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:15:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:41,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:41,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:15:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:41,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:41,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:15:41,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:41,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:15:41,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:41,350 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-12 15:15:41,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:15:41,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459312525] [2022-07-12 15:15:41,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459312525] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:15:41,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:15:41,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 15:15:41,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174237822] [2022-07-12 15:15:41,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:15:41,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 15:15:41,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:15:41,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 15:15:41,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:15:41,353 INFO L87 Difference]: Start difference. First operand 20707 states and 28497 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 15:15:46,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:15:46,671 INFO L93 Difference]: Finished difference Result 44295 states and 60749 transitions. [2022-07-12 15:15:46,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 15:15:46,671 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 134 [2022-07-12 15:15:46,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:15:46,802 INFO L225 Difference]: With dead ends: 44295 [2022-07-12 15:15:46,803 INFO L226 Difference]: Without dead ends: 23611 [2022-07-12 15:15:47,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-07-12 15:15:47,009 INFO L413 NwaCegarLoop]: 2889 mSDtfsCounter, 5620 mSDsluCounter, 3227 mSDsCounter, 0 mSdLazyCounter, 5367 mSolverCounterSat, 2004 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6225 SdHoareTripleChecker+Valid, 6116 SdHoareTripleChecker+Invalid, 7371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2004 IncrementalHoareTripleChecker+Valid, 5367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-07-12 15:15:47,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6225 Valid, 6116 Invalid, 7371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2004 Valid, 5367 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-07-12 15:15:47,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23611 states. [2022-07-12 15:15:47,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23611 to 22560. [2022-07-12 15:15:47,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22560 states, 16186 states have (on average 1.2665266279500804) internal successors, (20500), 16540 states have internal predecessors, (20500), 4989 states have call successors, (4989), 1410 states have call predecessors, (4989), 1382 states have return successors, (5049), 4800 states have call predecessors, (5049), 4985 states have call successors, (5049) [2022-07-12 15:15:47,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22560 states to 22560 states and 30538 transitions. [2022-07-12 15:15:48,005 INFO L78 Accepts]: Start accepts. Automaton has 22560 states and 30538 transitions. Word has length 134 [2022-07-12 15:15:48,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:15:48,006 INFO L495 AbstractCegarLoop]: Abstraction has 22560 states and 30538 transitions. [2022-07-12 15:15:48,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 15:15:48,006 INFO L276 IsEmpty]: Start isEmpty. Operand 22560 states and 30538 transitions. [2022-07-12 15:15:48,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-07-12 15:15:48,010 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:15:48,010 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 9, 9, 9, 9, 9, 9, 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] [2022-07-12 15:15:48,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 15:15:48,010 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:15:48,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:15:48,011 INFO L85 PathProgramCache]: Analyzing trace with hash 389621412, now seen corresponding path program 1 times [2022-07-12 15:15:48,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:15:48,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917613007] [2022-07-12 15:15:48,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:15:48,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:15:48,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:48,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:15:48,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:48,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:48,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:48,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:15:48,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:48,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:48,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:15:48,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:48,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:48,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:48,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:15:48,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:48,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:48,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:48,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:15:48,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:48,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:48,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:48,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:15:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:48,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:48,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:48,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:15:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:48,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:48,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:48,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:15:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:48,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:48,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:15:48,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:48,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:48,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:48,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:15:48,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:48,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:15:48,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:48,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-12 15:15:48,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:48,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 15:15:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:48,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 15:15:48,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:48,250 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-07-12 15:15:48,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:15:48,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917613007] [2022-07-12 15:15:48,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917613007] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:15:48,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:15:48,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:15:48,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645127539] [2022-07-12 15:15:48,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:15:48,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:15:48,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:15:48,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:15:48,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:15:48,253 INFO L87 Difference]: Start difference. First operand 22560 states and 30538 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-12 15:15:51,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:15:51,873 INFO L93 Difference]: Finished difference Result 68250 states and 92770 transitions. [2022-07-12 15:15:51,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:15:51,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 155 [2022-07-12 15:15:51,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:15:52,095 INFO L225 Difference]: With dead ends: 68250 [2022-07-12 15:15:52,095 INFO L226 Difference]: Without dead ends: 45713 [2022-07-12 15:15:52,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:15:52,183 INFO L413 NwaCegarLoop]: 2718 mSDtfsCounter, 2907 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 1883 mSolverCounterSat, 1128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3257 SdHoareTripleChecker+Valid, 4782 SdHoareTripleChecker+Invalid, 3011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1128 IncrementalHoareTripleChecker+Valid, 1883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-12 15:15:52,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3257 Valid, 4782 Invalid, 3011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1128 Valid, 1883 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-12 15:15:52,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45713 states. [2022-07-12 15:15:53,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45713 to 43811. [2022-07-12 15:15:53,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43811 states, 31391 states have (on average 1.2661909464496193) internal successors, (39747), 32127 states have internal predecessors, (39747), 9726 states have call successors, (9726), 2746 states have call predecessors, (9726), 2691 states have return successors, (9850), 9315 states have call predecessors, (9850), 9722 states have call successors, (9850) [2022-07-12 15:15:53,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43811 states to 43811 states and 59323 transitions. [2022-07-12 15:15:54,006 INFO L78 Accepts]: Start accepts. Automaton has 43811 states and 59323 transitions. Word has length 155 [2022-07-12 15:15:54,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:15:54,007 INFO L495 AbstractCegarLoop]: Abstraction has 43811 states and 59323 transitions. [2022-07-12 15:15:54,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-12 15:15:54,007 INFO L276 IsEmpty]: Start isEmpty. Operand 43811 states and 59323 transitions. [2022-07-12 15:15:54,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-12 15:15:54,010 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:15:54,011 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:15:54,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 15:15:54,011 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:15:54,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:15:54,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1551376929, now seen corresponding path program 1 times [2022-07-12 15:15:54,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:15:54,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615592016] [2022-07-12 15:15:54,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:15:54,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:15:54,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:15:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:54,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:15:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:15:54,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:15:54,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:15:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:54,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:15:54,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:15:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:54,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:15:54,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:54,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:15:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:54,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:15:54,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:15:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:15:54,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 15:15:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 15:15:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:15:54,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 15:15:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 15:15:54,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 15:15:54,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:15:54,265 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2022-07-12 15:15:54,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:15:54,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615592016] [2022-07-12 15:15:54,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615592016] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:15:54,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:15:54,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:15:54,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166171941] [2022-07-12 15:15:54,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:15:54,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:15:54,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:15:54,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:15:54,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:15:54,268 INFO L87 Difference]: Start difference. First operand 43811 states and 59323 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-12 15:15:59,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:15:59,353 INFO L93 Difference]: Finished difference Result 132237 states and 179689 transitions. [2022-07-12 15:15:59,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:15:59,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 183 [2022-07-12 15:15:59,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:15:59,914 INFO L225 Difference]: With dead ends: 132237 [2022-07-12 15:15:59,915 INFO L226 Difference]: Without dead ends: 88505 [2022-07-12 15:16:00,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:16:00,106 INFO L413 NwaCegarLoop]: 2890 mSDtfsCounter, 2779 mSDsluCounter, 2149 mSDsCounter, 0 mSdLazyCounter, 1873 mSolverCounterSat, 1028 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3116 SdHoareTripleChecker+Valid, 5039 SdHoareTripleChecker+Invalid, 2901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1028 IncrementalHoareTripleChecker+Valid, 1873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-12 15:16:00,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3116 Valid, 5039 Invalid, 2901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1028 Valid, 1873 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-12 15:16:00,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88505 states. [2022-07-12 15:16:02,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88505 to 84845. [2022-07-12 15:16:02,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84845 states, 61059 states have (on average 1.2657429699143452) internal successors, (77285), 62305 states have internal predecessors, (77285), 18562 states have call successors, (18562), 5298 states have call predecessors, (18562), 5221 states have return successors, (18814), 17997 states have call predecessors, (18814), 18558 states have call successors, (18814) [2022-07-12 15:16:03,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84845 states to 84845 states and 114661 transitions. [2022-07-12 15:16:03,867 INFO L78 Accepts]: Start accepts. Automaton has 84845 states and 114661 transitions. Word has length 183 [2022-07-12 15:16:03,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:16:03,868 INFO L495 AbstractCegarLoop]: Abstraction has 84845 states and 114661 transitions. [2022-07-12 15:16:03,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-12 15:16:03,869 INFO L276 IsEmpty]: Start isEmpty. Operand 84845 states and 114661 transitions. [2022-07-12 15:16:03,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-12 15:16:03,871 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:16:03,872 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:16:03,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 15:16:03,872 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:16:03,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:16:03,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1691925539, now seen corresponding path program 1 times [2022-07-12 15:16:03,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:16:03,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067020975] [2022-07-12 15:16:03,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:16:03,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:16:03,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:16:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:16:04,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:04,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:16:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:16:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:16:04,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:04,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:16:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:16:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:04,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:16:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:04,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:16:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:04,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:16:04,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:16:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:16:04,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 15:16:04,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 15:16:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:04,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 15:16:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 15:16:04,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 15:16:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:04,291 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-07-12 15:16:04,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:16:04,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067020975] [2022-07-12 15:16:04,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067020975] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:16:04,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:16:04,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:16:04,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156874539] [2022-07-12 15:16:04,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:16:04,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:16:04,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:16:04,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:16:04,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:16:04,294 INFO L87 Difference]: Start difference. First operand 84845 states and 114661 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 15:16:08,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:16:08,419 INFO L93 Difference]: Finished difference Result 88507 states and 120223 transitions. [2022-07-12 15:16:08,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:16:08,419 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 183 [2022-07-12 15:16:08,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:16:08,835 INFO L225 Difference]: With dead ends: 88507 [2022-07-12 15:16:08,835 INFO L226 Difference]: Without dead ends: 88505 [2022-07-12 15:16:08,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:16:08,898 INFO L413 NwaCegarLoop]: 2102 mSDtfsCounter, 2474 mSDsluCounter, 3168 mSDsCounter, 0 mSdLazyCounter, 2584 mSolverCounterSat, 822 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2684 SdHoareTripleChecker+Valid, 5270 SdHoareTripleChecker+Invalid, 3406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 822 IncrementalHoareTripleChecker+Valid, 2584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-12 15:16:08,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2684 Valid, 5270 Invalid, 3406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [822 Valid, 2584 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-12 15:16:09,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88505 states. [2022-07-12 15:16:11,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88505 to 84849. [2022-07-12 15:16:11,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84849 states, 61062 states have (on average 1.265729913858046) internal successors, (77288), 62308 states have internal predecessors, (77288), 18562 states have call successors, (18562), 5299 states have call predecessors, (18562), 5222 states have return successors, (18814), 17997 states have call predecessors, (18814), 18558 states have call successors, (18814) [2022-07-12 15:16:11,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84849 states to 84849 states and 114664 transitions. [2022-07-12 15:16:11,957 INFO L78 Accepts]: Start accepts. Automaton has 84849 states and 114664 transitions. Word has length 183 [2022-07-12 15:16:11,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:16:11,958 INFO L495 AbstractCegarLoop]: Abstraction has 84849 states and 114664 transitions. [2022-07-12 15:16:11,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 15:16:11,959 INFO L276 IsEmpty]: Start isEmpty. Operand 84849 states and 114664 transitions. [2022-07-12 15:16:11,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-07-12 15:16:11,963 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:16:11,964 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:16:11,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 15:16:11,964 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:16:11,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:16:11,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1433412593, now seen corresponding path program 1 times [2022-07-12 15:16:11,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:16:11,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834357003] [2022-07-12 15:16:11,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:16:11,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:16:12,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:16:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:12,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:16:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:12,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:16:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:12,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:16:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:16:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:16:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:16:12,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:12,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:16:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:12,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:16:12,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:12,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:16:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:16:12,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:16:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 15:16:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 15:16:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 15:16:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 15:16:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 15:16:12,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:16:12,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:12,656 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-07-12 15:16:12,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:16:12,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834357003] [2022-07-12 15:16:12,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834357003] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:16:12,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:16:12,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:16:12,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72149953] [2022-07-12 15:16:12,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:16:12,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:16:12,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:16:12,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:16:12,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:16:12,660 INFO L87 Difference]: Start difference. First operand 84849 states and 114664 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-12 15:16:16,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:16:16,579 INFO L93 Difference]: Finished difference Result 88511 states and 120226 transitions. [2022-07-12 15:16:16,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:16:16,579 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 188 [2022-07-12 15:16:16,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:16:17,141 INFO L225 Difference]: With dead ends: 88511 [2022-07-12 15:16:17,141 INFO L226 Difference]: Without dead ends: 88509 [2022-07-12 15:16:17,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:16:17,180 INFO L413 NwaCegarLoop]: 2105 mSDtfsCounter, 2466 mSDsluCounter, 3168 mSDsCounter, 0 mSdLazyCounter, 2584 mSolverCounterSat, 821 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2676 SdHoareTripleChecker+Valid, 5273 SdHoareTripleChecker+Invalid, 3405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 821 IncrementalHoareTripleChecker+Valid, 2584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:16:17,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2676 Valid, 5273 Invalid, 3405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [821 Valid, 2584 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-12 15:16:17,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88509 states. [2022-07-12 15:16:19,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88509 to 84853. [2022-07-12 15:16:19,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84853 states, 61065 states have (on average 1.265716859084582) internal successors, (77291), 62311 states have internal predecessors, (77291), 18562 states have call successors, (18562), 5300 states have call predecessors, (18562), 5223 states have return successors, (18814), 17997 states have call predecessors, (18814), 18558 states have call successors, (18814) [2022-07-12 15:16:20,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84853 states to 84853 states and 114667 transitions. [2022-07-12 15:16:20,034 INFO L78 Accepts]: Start accepts. Automaton has 84853 states and 114667 transitions. Word has length 188 [2022-07-12 15:16:20,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:16:20,035 INFO L495 AbstractCegarLoop]: Abstraction has 84853 states and 114667 transitions. [2022-07-12 15:16:20,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-12 15:16:20,035 INFO L276 IsEmpty]: Start isEmpty. Operand 84853 states and 114667 transitions. [2022-07-12 15:16:20,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-07-12 15:16:20,039 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:16:20,039 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:16:20,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 15:16:20,040 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:16:20,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:16:20,040 INFO L85 PathProgramCache]: Analyzing trace with hash -666310813, now seen corresponding path program 1 times [2022-07-12 15:16:20,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:16:20,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535607069] [2022-07-12 15:16:20,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:16:20,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:16:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:16:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:20,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:16:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:16:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:16:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:20,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:16:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:16:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:16:20,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:20,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:16:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:16:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:16:20,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:16:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:16:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 15:16:20,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 15:16:20,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 15:16:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 15:16:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 15:16:20,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:16:20,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 15:16:20,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:20,416 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2022-07-12 15:16:20,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:16:20,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535607069] [2022-07-12 15:16:20,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535607069] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:16:20,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:16:20,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:16:20,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753105221] [2022-07-12 15:16:20,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:16:20,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:16:20,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:16:20,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:16:20,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:16:20,420 INFO L87 Difference]: Start difference. First operand 84853 states and 114667 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 15:16:24,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:16:24,968 INFO L93 Difference]: Finished difference Result 88515 states and 120229 transitions. [2022-07-12 15:16:24,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:16:24,969 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 193 [2022-07-12 15:16:24,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:16:25,314 INFO L225 Difference]: With dead ends: 88515 [2022-07-12 15:16:25,314 INFO L226 Difference]: Without dead ends: 88513 [2022-07-12 15:16:25,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:16:25,349 INFO L413 NwaCegarLoop]: 2106 mSDtfsCounter, 2466 mSDsluCounter, 3171 mSDsCounter, 0 mSdLazyCounter, 2584 mSolverCounterSat, 820 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2675 SdHoareTripleChecker+Valid, 5277 SdHoareTripleChecker+Invalid, 3404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 820 IncrementalHoareTripleChecker+Valid, 2584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-12 15:16:25,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2675 Valid, 5277 Invalid, 3404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [820 Valid, 2584 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-12 15:16:25,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88513 states. [2022-07-12 15:16:27,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88513 to 84857. [2022-07-12 15:16:28,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84857 states, 61068 states have (on average 1.2657038055937644) internal successors, (77294), 62314 states have internal predecessors, (77294), 18562 states have call successors, (18562), 5301 states have call predecessors, (18562), 5224 states have return successors, (18814), 17997 states have call predecessors, (18814), 18558 states have call successors, (18814) [2022-07-12 15:16:28,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84857 states to 84857 states and 114670 transitions. [2022-07-12 15:16:28,274 INFO L78 Accepts]: Start accepts. Automaton has 84857 states and 114670 transitions. Word has length 193 [2022-07-12 15:16:28,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:16:28,274 INFO L495 AbstractCegarLoop]: Abstraction has 84857 states and 114670 transitions. [2022-07-12 15:16:28,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 15:16:28,274 INFO L276 IsEmpty]: Start isEmpty. Operand 84857 states and 114670 transitions. [2022-07-12 15:16:28,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-07-12 15:16:28,278 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:16:28,278 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:16:28,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 15:16:28,278 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:16:28,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:16:28,279 INFO L85 PathProgramCache]: Analyzing trace with hash -247350145, now seen corresponding path program 1 times [2022-07-12 15:16:28,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:16:28,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780388097] [2022-07-12 15:16:28,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:16:28,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:16:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:16:28,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:16:28,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:16:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:16:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:16:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:28,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:16:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:28,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:16:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:16:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:16:28,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:28,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:16:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:16:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:16:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 15:16:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 15:16:28,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 15:16:28,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 15:16:28,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-12 15:16:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-12 15:16:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 15:16:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-12 15:16:28,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-12 15:16:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-12 15:16:28,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:28,512 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2022-07-12 15:16:28,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:16:28,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780388097] [2022-07-12 15:16:28,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780388097] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:16:28,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:16:28,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 15:16:28,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420452196] [2022-07-12 15:16:28,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:16:28,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:16:28,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:16:28,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:16:28,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:16:28,515 INFO L87 Difference]: Start difference. First operand 84857 states and 114670 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-12 15:16:36,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:16:36,571 INFO L93 Difference]: Finished difference Result 216236 states and 293292 transitions. [2022-07-12 15:16:36,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 15:16:36,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 210 [2022-07-12 15:16:36,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:16:37,287 INFO L225 Difference]: With dead ends: 216236 [2022-07-12 15:16:37,288 INFO L226 Difference]: Without dead ends: 131458 [2022-07-12 15:16:37,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 15:16:37,499 INFO L413 NwaCegarLoop]: 3839 mSDtfsCounter, 3284 mSDsluCounter, 3234 mSDsCounter, 0 mSdLazyCounter, 3137 mSolverCounterSat, 1940 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3511 SdHoareTripleChecker+Valid, 7073 SdHoareTripleChecker+Invalid, 5077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1940 IncrementalHoareTripleChecker+Valid, 3137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:16:37,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3511 Valid, 7073 Invalid, 5077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1940 Valid, 3137 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-07-12 15:16:37,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131458 states. [2022-07-12 15:16:41,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131458 to 125939. [2022-07-12 15:16:41,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125939 states, 90784 states have (on average 1.2654212195981671) internal successors, (114880), 92540 states have internal predecessors, (114880), 27398 states have call successors, (27398), 7853 states have call predecessors, (27398), 7754 states have return successors, (27778), 26679 states have call predecessors, (27778), 27394 states have call successors, (27778) [2022-07-12 15:16:42,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125939 states to 125939 states and 170056 transitions. [2022-07-12 15:16:42,440 INFO L78 Accepts]: Start accepts. Automaton has 125939 states and 170056 transitions. Word has length 210 [2022-07-12 15:16:42,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:16:42,441 INFO L495 AbstractCegarLoop]: Abstraction has 125939 states and 170056 transitions. [2022-07-12 15:16:42,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-12 15:16:42,441 INFO L276 IsEmpty]: Start isEmpty. Operand 125939 states and 170056 transitions. [2022-07-12 15:16:42,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-07-12 15:16:42,444 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:16:42,445 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:16:42,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 15:16:42,445 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:16:42,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:16:42,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1426921393, now seen corresponding path program 1 times [2022-07-12 15:16:42,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:16:42,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074554546] [2022-07-12 15:16:42,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:16:42,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:16:42,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:16:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:16:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:16:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:42,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:16:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:42,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:16:42,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:42,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:16:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:42,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:16:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:16:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:16:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:42,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:16:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:16:42,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 15:16:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 15:16:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 15:16:42,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:16:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 15:16:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 15:16:42,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 15:16:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:16:42,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 15:16:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-12 15:16:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:16:42,711 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2022-07-12 15:16:42,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:16:42,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074554546] [2022-07-12 15:16:42,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074554546] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:16:42,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:16:42,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:16:42,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409378996] [2022-07-12 15:16:42,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:16:42,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:16:42,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:16:42,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:16:42,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:16:42,714 INFO L87 Difference]: Start difference. First operand 125939 states and 170056 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)