./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-natsemi-ns83820.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.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 a8ab8b9c7011aec39f84a1ecf826f202398208cb106ea4649e1adfd1ea4d4076 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 02:20:08,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 02:20:08,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 02:20:08,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 02:20:08,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 02:20:08,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 02:20:08,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 02:20:08,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 02:20:08,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 02:20:08,786 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 02:20:08,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 02:20:08,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 02:20:08,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 02:20:08,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 02:20:08,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 02:20:08,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 02:20:08,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 02:20:08,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 02:20:08,793 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 02:20:08,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 02:20:08,796 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 02:20:08,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 02:20:08,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 02:20:08,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 02:20:08,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 02:20:08,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 02:20:08,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 02:20:08,801 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 02:20:08,802 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 02:20:08,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 02:20:08,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 02:20:08,803 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 02:20:08,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 02:20:08,805 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 02:20:08,806 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 02:20:08,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 02:20:08,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 02:20:08,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 02:20:08,809 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 02:20:08,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 02:20:08,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 02:20:08,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 02:20:08,824 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 02:20:08,862 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 02:20:08,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 02:20:08,865 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 02:20:08,865 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 02:20:08,866 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 02:20:08,866 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 02:20:08,867 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 02:20:08,867 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 02:20:08,867 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 02:20:08,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 02:20:08,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 02:20:08,868 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 02:20:08,868 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 02:20:08,868 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 02:20:08,868 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 02:20:08,868 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 02:20:08,869 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 02:20:08,869 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 02:20:08,870 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 02:20:08,870 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 02:20:08,872 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 02:20:08,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 02:20:08,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 02:20:08,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 02:20:08,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 02:20:08,876 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 02:20:08,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 02:20:08,877 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 02:20:08,877 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 02:20:08,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 02:20:08,877 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8ab8b9c7011aec39f84a1ecf826f202398208cb106ea4649e1adfd1ea4d4076 [2022-07-20 02:20:09,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 02:20:09,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 02:20:09,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 02:20:09,116 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 02:20:09,117 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 02:20:09,118 INFO L432 ainManager$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-natsemi-ns83820.cil.i [2022-07-20 02:20:09,176 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbe791368/8d312486de764b328437efeb837f1b5d/FLAGe7f9cbff6 [2022-07-20 02:20:09,835 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 02:20:09,835 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-natsemi-ns83820.cil.i [2022-07-20 02:20:09,876 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbe791368/8d312486de764b328437efeb837f1b5d/FLAGe7f9cbff6 [2022-07-20 02:20:09,910 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbe791368/8d312486de764b328437efeb837f1b5d [2022-07-20 02:20:09,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 02:20:09,912 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 02:20:09,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 02:20:09,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 02:20:09,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 02:20:09,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:20:09" (1/1) ... [2022-07-20 02:20:09,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c116d0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:20:09, skipping insertion in model container [2022-07-20 02:20:09,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:20:09" (1/1) ... [2022-07-20 02:20:09,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 02:20:10,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 02:20:11,980 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-natsemi-ns83820.cil.i[322443,322456] [2022-07-20 02:20:11,983 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-natsemi-ns83820.cil.i[322612,322625] [2022-07-20 02:20:11,984 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-natsemi-ns83820.cil.i[322779,322792] [2022-07-20 02:20:11,986 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-natsemi-ns83820.cil.i[322947,322960] [2022-07-20 02:20:12,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:20:12,045 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 02:20:12,296 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-natsemi-ns83820.cil.i[322443,322456] [2022-07-20 02:20:12,296 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-natsemi-ns83820.cil.i[322612,322625] [2022-07-20 02:20:12,297 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-natsemi-ns83820.cil.i[322779,322792] [2022-07-20 02:20:12,297 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-natsemi-ns83820.cil.i[322947,322960] [2022-07-20 02:20:12,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:20:12,442 INFO L208 MainTranslator]: Completed translation [2022-07-20 02:20:12,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:20:12 WrapperNode [2022-07-20 02:20:12,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 02:20:12,443 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 02:20:12,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 02:20:12,444 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 02:20:12,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:20:12" (1/1) ... [2022-07-20 02:20:12,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:20:12" (1/1) ... [2022-07-20 02:20:12,674 INFO L137 Inliner]: procedures = 459, calls = 1765, calls flagged for inlining = 217, calls inlined = 199, statements flattened = 4510 [2022-07-20 02:20:12,674 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 02:20:12,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 02:20:12,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 02:20:12,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 02:20:12,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:20:12" (1/1) ... [2022-07-20 02:20:12,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:20:12" (1/1) ... [2022-07-20 02:20:12,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:20:12" (1/1) ... [2022-07-20 02:20:12,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:20:12" (1/1) ... [2022-07-20 02:20:12,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:20:12" (1/1) ... [2022-07-20 02:20:12,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:20:12" (1/1) ... [2022-07-20 02:20:12,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:20:12" (1/1) ... [2022-07-20 02:20:12,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 02:20:12,918 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 02:20:12,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 02:20:12,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 02:20:12,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:20:12" (1/1) ... [2022-07-20 02:20:12,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 02:20:12,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 02:20:12,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-20 02:20:12,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-20 02:20:13,005 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_set_multicast [2022-07-20 02:20:13,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_set_multicast [2022-07-20 02:20:13,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 02:20:13,020 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 02:20:13,020 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_rx_kick [2022-07-20 02:20:13,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_rx_kick [2022-07-20 02:20:13,021 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-20 02:20:13,021 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-20 02:20:13,021 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_do_reset [2022-07-20 02:20:13,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_do_reset [2022-07-20 02:20:13,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2022-07-20 02:20:13,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2022-07-20 02:20:13,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 02:20:13,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 02:20:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-20 02:20:13,022 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-20 02:20:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-20 02:20:13,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-20 02:20:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-20 02:20:13,022 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-20 02:20:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_62 [2022-07-20 02:20:13,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_62 [2022-07-20 02:20:13,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_73 [2022-07-20 02:20:13,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_73 [2022-07-20 02:20:13,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2022-07-20 02:20:13,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2022-07-20 02:20:13,023 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_remove_one [2022-07-20 02:20:13,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_remove_one [2022-07-20 02:20:13,023 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-20 02:20:13,023 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-20 02:20:13,024 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_update_stats [2022-07-20 02:20:13,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_update_stats [2022-07-20 02:20:13,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-20 02:20:13,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-20 02:20:13,024 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-20 02:20:13,024 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-20 02:20:13,024 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-20 02:20:13,024 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-20 02:20:13,025 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-20 02:20:13,025 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-20 02:20:13,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-20 02:20:13,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-20 02:20:13,026 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-20 02:20:13,026 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-20 02:20:13,026 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-20 02:20:13,026 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-20 02:20:13,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 02:20:13,027 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-20 02:20:13,027 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-20 02:20:13,027 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-20 02:20:13,028 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-20 02:20:13,028 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-20 02:20:13,028 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-20 02:20:13,029 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_tx_timeout [2022-07-20 02:20:13,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_tx_timeout [2022-07-20 02:20:13,030 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-20 02:20:13,030 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-20 02:20:13,030 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-20 02:20:13,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-20 02:20:13,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-20 02:20:13,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-20 02:20:13,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-20 02:20:13,031 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-20 02:20:13,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-20 02:20:13,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-20 02:20:13,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-20 02:20:13,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-20 02:20:13,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-20 02:20:13,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-20 02:20:13,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-20 02:20:13,033 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-20 02:20:13,033 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-20 02:20:13,033 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-20 02:20:13,033 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-20 02:20:13,033 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-20 02:20:13,033 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-20 02:20:13,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-20 02:20:13,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-20 02:20:13,034 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_run_bist [2022-07-20 02:20:13,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_run_bist [2022-07-20 02:20:13,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 02:20:13,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-20 02:20:13,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-20 02:20:13,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-20 02:20:13,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-20 02:20:13,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-07-20 02:20:13,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-07-20 02:20:13,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 02:20:13,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-20 02:20:13,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-20 02:20:13,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 02:20:13,036 INFO L130 BoogieDeclarations]: Found specification of procedure clear_rx_desc [2022-07-20 02:20:13,037 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_rx_desc [2022-07-20 02:20:13,037 INFO L130 BoogieDeclarations]: Found specification of procedure phy_intr [2022-07-20 02:20:13,037 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_intr [2022-07-20 02:20:13,037 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 02:20:13,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 02:20:13,037 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-20 02:20:13,037 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-20 02:20:13,038 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-20 02:20:13,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-20 02:20:13,038 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-20 02:20:13,038 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-20 02:20:13,038 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-20 02:20:13,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-20 02:20:13,038 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-20 02:20:13,039 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-20 02:20:13,039 INFO L130 BoogieDeclarations]: Found specification of procedure do_tx_done [2022-07-20 02:20:13,039 INFO L138 BoogieDeclarations]: Found implementation of procedure do_tx_done [2022-07-20 02:20:13,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_misc_lock_of_ns83820 [2022-07-20 02:20:13,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_misc_lock_of_ns83820 [2022-07-20 02:20:13,044 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-20 02:20:13,044 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-20 02:20:13,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-20 02:20:13,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-20 02:20:13,047 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-07-20 02:20:13,047 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-07-20 02:20:13,047 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-20 02:20:13,048 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-20 02:20:13,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 02:20:13,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 02:20:13,048 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_stop [2022-07-20 02:20:13,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_stop [2022-07-20 02:20:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure kick_tx [2022-07-20 02:20:13,049 INFO L138 BoogieDeclarations]: Found implementation of procedure kick_tx [2022-07-20 02:20:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rx_info [2022-07-20 02:20:13,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rx_info [2022-07-20 02:20:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 02:20:13,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 02:20:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-20 02:20:13,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-20 02:20:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-20 02:20:13,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-20 02:20:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-07-20 02:20:13,052 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-07-20 02:20:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-20 02:20:13,052 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-20 02:20:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-20 02:20:13,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-20 02:20:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-20 02:20:13,053 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-20 02:20:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-07-20 02:20:13,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-07-20 02:20:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-07-20 02:20:13,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-07-20 02:20:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-20 02:20:13,053 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-20 02:20:13,054 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-20 02:20:13,054 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-20 02:20:13,054 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-20 02:20:13,054 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-20 02:20:13,054 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-07-20 02:20:13,054 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-07-20 02:20:13,054 INFO L130 BoogieDeclarations]: Found specification of procedure PRIV [2022-07-20 02:20:13,054 INFO L138 BoogieDeclarations]: Found implementation of procedure PRIV [2022-07-20 02:20:13,054 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-20 02:20:13,055 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-20 02:20:13,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 02:20:13,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_72 [2022-07-20 02:20:13,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_72 [2022-07-20 02:20:13,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 02:20:13,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 02:20:13,055 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-20 02:20:13,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-20 02:20:13,056 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-20 02:20:13,056 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-20 02:20:13,056 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-20 02:20:13,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-20 02:20:13,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-20 02:20:13,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-20 02:20:13,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-07-20 02:20:13,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-07-20 02:20:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-20 02:20:13,057 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-20 02:20:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-20 02:20:13,057 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-20 02:20:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-20 02:20:13,057 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-20 02:20:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_ns83820 [2022-07-20 02:20:13,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_ns83820 [2022-07-20 02:20:13,058 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2022-07-20 02:20:13,058 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2022-07-20 02:20:13,058 INFO L130 BoogieDeclarations]: Found specification of procedure build_rx_desc [2022-07-20 02:20:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure build_rx_desc [2022-07-20 02:20:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-20 02:20:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-20 02:20:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-20 02:20:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 02:20:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 02:20:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-20 02:20:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-20 02:20:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_misc_lock_of_ns83820 [2022-07-20 02:20:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_misc_lock_of_ns83820 [2022-07-20 02:20:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-07-20 02:20:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-07-20 02:20:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_open [2022-07-20 02:20:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_open [2022-07-20 02:20:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-20 02:20:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-20 02:20:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-07-20 02:20:13,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-07-20 02:20:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure rx_irq [2022-07-20 02:20:13,061 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_irq [2022-07-20 02:20:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_disable_interrupts [2022-07-20 02:20:13,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_disable_interrupts [2022-07-20 02:20:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure kick_rx [2022-07-20 02:20:13,061 INFO L138 BoogieDeclarations]: Found implementation of procedure kick_rx [2022-07-20 02:20:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-20 02:20:13,062 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-20 02:20:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-20 02:20:13,062 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-20 02:20:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 02:20:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure rx_refill [2022-07-20 02:20:13,062 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_refill [2022-07-20 02:20:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-20 02:20:13,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-20 02:20:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rx_info [2022-07-20 02:20:13,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rx_info [2022-07-20 02:20:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_ns83820 [2022-07-20 02:20:13,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_ns83820 [2022-07-20 02:20:13,906 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 02:20:13,908 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 02:20:14,166 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 02:20:15,978 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-20 02:20:16,105 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 02:20:16,127 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 02:20:16,128 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-20 02:20:16,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:20:16 BoogieIcfgContainer [2022-07-20 02:20:16,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 02:20:16,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 02:20:16,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 02:20:16,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 02:20:16,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:20:09" (1/3) ... [2022-07-20 02:20:16,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741ae436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:20:16, skipping insertion in model container [2022-07-20 02:20:16,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:20:12" (2/3) ... [2022-07-20 02:20:16,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741ae436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:20:16, skipping insertion in model container [2022-07-20 02:20:16,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:20:16" (3/3) ... [2022-07-20 02:20:16,141 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2022-07-20 02:20:16,151 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 02:20:16,151 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-20 02:20:16,209 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 02:20:16,214 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@409ab799, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2ae317cd [2022-07-20 02:20:16,215 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-20 02:20:16,223 INFO L276 IsEmpty]: Start isEmpty. Operand has 1899 states, 1285 states have (on average 1.3011673151750973) internal successors, (1672), 1317 states have internal predecessors, (1672), 508 states have call successors, (508), 104 states have call predecessors, (508), 103 states have return successors, (503), 499 states have call predecessors, (503), 503 states have call successors, (503) [2022-07-20 02:20:16,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-20 02:20:16,233 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:20:16,234 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:20:16,234 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:20:16,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:20:16,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1511978544, now seen corresponding path program 1 times [2022-07-20 02:20:16,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:20:16,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459107393] [2022-07-20 02:20:16,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:20:16,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:20:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:16,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:20:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:16,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:16,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:20:16,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:16,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:16,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:20:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:16,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:16,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:16,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:20:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:16,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:16,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:20:16,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:16,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:16,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:16,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:20:16,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:16,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:16,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:16,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 02:20:16,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:16,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:16,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 02:20:16,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:16,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-20 02:20:16,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:16,767 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-20 02:20:16,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:20:16,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459107393] [2022-07-20 02:20:16,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459107393] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:20:16,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:20:16,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 02:20:16,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050331099] [2022-07-20 02:20:16,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:20:16,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 02:20:16,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:20:16,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 02:20:16,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 02:20:16,798 INFO L87 Difference]: Start difference. First operand has 1899 states, 1285 states have (on average 1.3011673151750973) internal successors, (1672), 1317 states have internal predecessors, (1672), 508 states have call successors, (508), 104 states have call predecessors, (508), 103 states have return successors, (503), 499 states have call predecessors, (503), 503 states have call successors, (503) Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-20 02:20:20,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:20:20,967 INFO L93 Difference]: Finished difference Result 5727 states and 8328 transitions. [2022-07-20 02:20:20,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 02:20:20,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 101 [2022-07-20 02:20:20,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:20:21,011 INFO L225 Difference]: With dead ends: 5727 [2022-07-20 02:20:21,011 INFO L226 Difference]: Without dead ends: 3837 [2022-07-20 02:20:21,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 02:20:21,029 INFO L413 NwaCegarLoop]: 2737 mSDtfsCounter, 3409 mSDsluCounter, 2204 mSDsCounter, 0 mSdLazyCounter, 2341 mSolverCounterSat, 1566 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3895 SdHoareTripleChecker+Valid, 4941 SdHoareTripleChecker+Invalid, 3907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1566 IncrementalHoareTripleChecker+Valid, 2341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-20 02:20:21,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3895 Valid, 4941 Invalid, 3907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1566 Valid, 2341 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-20 02:20:21,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3837 states. [2022-07-20 02:20:21,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3837 to 3689. [2022-07-20 02:20:21,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3689 states, 2511 states have (on average 1.2453205894066108) internal successors, (3127), 2573 states have internal predecessors, (3127), 972 states have call successors, (972), 204 states have call predecessors, (972), 203 states have return successors, (969), 961 states have call predecessors, (969), 969 states have call successors, (969) [2022-07-20 02:20:21,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3689 states to 3689 states and 5068 transitions. [2022-07-20 02:20:21,351 INFO L78 Accepts]: Start accepts. Automaton has 3689 states and 5068 transitions. Word has length 101 [2022-07-20 02:20:21,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:20:21,353 INFO L495 AbstractCegarLoop]: Abstraction has 3689 states and 5068 transitions. [2022-07-20 02:20:21,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-20 02:20:21,353 INFO L276 IsEmpty]: Start isEmpty. Operand 3689 states and 5068 transitions. [2022-07-20 02:20:21,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-20 02:20:21,363 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:20:21,363 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:20:21,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 02:20:21,364 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)] === [2022-07-20 02:20:21,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:20:21,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1750582024, now seen corresponding path program 1 times [2022-07-20 02:20:21,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:20:21,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777072926] [2022-07-20 02:20:21,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:20:21,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:20:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:21,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:20:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:21,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:21,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:21,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:20:21,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:21,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:21,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:20:21,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:21,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:21,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:21,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:20:21,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:21,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:21,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:21,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:20:21,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:21,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:21,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:20:21,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:21,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:21,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 02:20:21,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:21,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:21,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:21,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 02:20:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:21,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-20 02:20:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:21,630 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-20 02:20:21,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:20:21,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777072926] [2022-07-20 02:20:21,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777072926] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:20:21,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:20:21,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 02:20:21,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782264813] [2022-07-20 02:20:21,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:20:21,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 02:20:21,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:20:21,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 02:20:21,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 02:20:21,635 INFO L87 Difference]: Start difference. First operand 3689 states and 5068 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, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-20 02:20:25,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:20:25,099 INFO L93 Difference]: Finished difference Result 10611 states and 14599 transitions. [2022-07-20 02:20:25,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 02:20:25,102 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, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 114 [2022-07-20 02:20:25,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:20:25,141 INFO L225 Difference]: With dead ends: 10611 [2022-07-20 02:20:25,141 INFO L226 Difference]: Without dead ends: 6941 [2022-07-20 02:20:25,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 02:20:25,158 INFO L413 NwaCegarLoop]: 2661 mSDtfsCounter, 2945 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 2297 mSolverCounterSat, 1546 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3356 SdHoareTripleChecker+Valid, 4842 SdHoareTripleChecker+Invalid, 3843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1546 IncrementalHoareTripleChecker+Valid, 2297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-20 02:20:25,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3356 Valid, 4842 Invalid, 3843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1546 Valid, 2297 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-20 02:20:25,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6941 states. [2022-07-20 02:20:25,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6941 to 6730. [2022-07-20 02:20:25,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6730 states, 4537 states have (on average 1.2382631694952613) internal successors, (5618), 4665 states have internal predecessors, (5618), 1789 states have call successors, (1789), 394 states have call predecessors, (1789), 401 states have return successors, (1816), 1772 states have call predecessors, (1816), 1786 states have call successors, (1816) [2022-07-20 02:20:25,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6730 states to 6730 states and 9223 transitions. [2022-07-20 02:20:25,411 INFO L78 Accepts]: Start accepts. Automaton has 6730 states and 9223 transitions. Word has length 114 [2022-07-20 02:20:25,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:20:25,412 INFO L495 AbstractCegarLoop]: Abstraction has 6730 states and 9223 transitions. [2022-07-20 02:20:25,412 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, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-20 02:20:25,412 INFO L276 IsEmpty]: Start isEmpty. Operand 6730 states and 9223 transitions. [2022-07-20 02:20:25,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-20 02:20:25,414 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:20:25,414 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:20:25,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 02:20:25,415 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)] === [2022-07-20 02:20:25,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:20:25,415 INFO L85 PathProgramCache]: Analyzing trace with hash -357064940, now seen corresponding path program 1 times [2022-07-20 02:20:25,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:20:25,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442767948] [2022-07-20 02:20:25,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:20:25,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:20:25,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:25,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:20:25,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:25,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:25,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:25,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:20:25,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:25,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:25,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:25,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:20:25,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:25,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:25,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:20:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:25,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:25,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:20:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:25,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:25,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:20:25,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:25,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:25,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 02:20:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:25,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:25,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 02:20:25,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:25,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-20 02:20:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:25,698 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-20 02:20:25,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:20:25,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442767948] [2022-07-20 02:20:25,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442767948] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:20:25,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:20:25,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-20 02:20:25,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107603554] [2022-07-20 02:20:25,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:20:25,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 02:20:25,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:20:25,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 02:20:25,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:20:25,705 INFO L87 Difference]: Start difference. First operand 6730 states and 9223 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, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-20 02:20:32,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:20:32,426 INFO L93 Difference]: Finished difference Result 15942 states and 21846 transitions. [2022-07-20 02:20:32,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 02:20:32,426 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, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 115 [2022-07-20 02:20:32,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:20:32,541 INFO L225 Difference]: With dead ends: 15942 [2022-07-20 02:20:32,541 INFO L226 Difference]: Without dead ends: 9231 [2022-07-20 02:20:32,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-07-20 02:20:32,574 INFO L413 NwaCegarLoop]: 3362 mSDtfsCounter, 6086 mSDsluCounter, 3777 mSDsCounter, 0 mSdLazyCounter, 6709 mSolverCounterSat, 2788 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6921 SdHoareTripleChecker+Valid, 7139 SdHoareTripleChecker+Invalid, 9497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2788 IncrementalHoareTripleChecker+Valid, 6709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-07-20 02:20:32,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6921 Valid, 7139 Invalid, 9497 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2788 Valid, 6709 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-07-20 02:20:32,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9231 states. [2022-07-20 02:20:32,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9231 to 8779. [2022-07-20 02:20:32,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8779 states, 5907 states have (on average 1.23463687150838) internal successors, (7293), 6082 states have internal predecessors, (7293), 2299 states have call successors, (2299), 566 states have call predecessors, (2299), 570 states have return successors, (2308), 2271 states have call predecessors, (2308), 2296 states have call successors, (2308) [2022-07-20 02:20:32,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8779 states to 8779 states and 11900 transitions. [2022-07-20 02:20:32,960 INFO L78 Accepts]: Start accepts. Automaton has 8779 states and 11900 transitions. Word has length 115 [2022-07-20 02:20:32,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:20:32,961 INFO L495 AbstractCegarLoop]: Abstraction has 8779 states and 11900 transitions. [2022-07-20 02:20:32,961 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, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-20 02:20:32,962 INFO L276 IsEmpty]: Start isEmpty. Operand 8779 states and 11900 transitions. [2022-07-20 02:20:32,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-20 02:20:32,964 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:20:32,964 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 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] [2022-07-20 02:20:32,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 02:20:32,964 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)] === [2022-07-20 02:20:32,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:20:32,965 INFO L85 PathProgramCache]: Analyzing trace with hash -486572428, now seen corresponding path program 1 times [2022-07-20 02:20:32,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:20:32,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794058262] [2022-07-20 02:20:32,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:20:32,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:20:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:33,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:20:33,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:33,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:33,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:20:33,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:33,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:33,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:33,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:20:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:33,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:33,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:20:33,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:33,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:33,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:20:33,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:33,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:33,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:20:33,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:33,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:33,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:33,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 02:20:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:33,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:33,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 02:20:33,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:33,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-20 02:20:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:33,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-20 02:20:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:33,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 02:20:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:33,174 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2022-07-20 02:20:33,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:20:33,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794058262] [2022-07-20 02:20:33,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794058262] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:20:33,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:20:33,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 02:20:33,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836973369] [2022-07-20 02:20:33,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:20:33,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 02:20:33,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:20:33,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 02:20:33,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 02:20:33,177 INFO L87 Difference]: Start difference. First operand 8779 states and 11900 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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) [2022-07-20 02:20:36,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:20:36,732 INFO L93 Difference]: Finished difference Result 25047 states and 34121 transitions. [2022-07-20 02:20:36,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 02:20:36,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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 119 [2022-07-20 02:20:36,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:20:36,819 INFO L225 Difference]: With dead ends: 25047 [2022-07-20 02:20:36,820 INFO L226 Difference]: Without dead ends: 16287 [2022-07-20 02:20:36,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 02:20:36,861 INFO L413 NwaCegarLoop]: 2735 mSDtfsCounter, 3220 mSDsluCounter, 2240 mSDsCounter, 0 mSdLazyCounter, 2195 mSolverCounterSat, 1549 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3661 SdHoareTripleChecker+Valid, 4975 SdHoareTripleChecker+Invalid, 3744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1549 IncrementalHoareTripleChecker+Valid, 2195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-20 02:20:36,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3661 Valid, 4975 Invalid, 3744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1549 Valid, 2195 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-20 02:20:36,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16287 states. [2022-07-20 02:20:37,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16287 to 15475. [2022-07-20 02:20:37,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15475 states, 10437 states have (on average 1.2373287343106256) internal successors, (12914), 10756 states have internal predecessors, (12914), 4011 states have call successors, (4011), 1023 states have call predecessors, (4011), 1024 states have return successors, (4052), 3937 states have call predecessors, (4052), 4008 states have call successors, (4052) [2022-07-20 02:20:37,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15475 states to 15475 states and 20977 transitions. [2022-07-20 02:20:37,511 INFO L78 Accepts]: Start accepts. Automaton has 15475 states and 20977 transitions. Word has length 119 [2022-07-20 02:20:37,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:20:37,512 INFO L495 AbstractCegarLoop]: Abstraction has 15475 states and 20977 transitions. [2022-07-20 02:20:37,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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) [2022-07-20 02:20:37,512 INFO L276 IsEmpty]: Start isEmpty. Operand 15475 states and 20977 transitions. [2022-07-20 02:20:37,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-07-20 02:20:37,513 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:20:37,513 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 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] [2022-07-20 02:20:37,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-20 02:20:37,513 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)] === [2022-07-20 02:20:37,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:20:37,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1436514206, now seen corresponding path program 1 times [2022-07-20 02:20:37,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:20:37,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409788502] [2022-07-20 02:20:37,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:20:37,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:20:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:37,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:20:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:37,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:37,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:37,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:20:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:37,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:37,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:20:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:37,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:37,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:20:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:37,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:37,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:20:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:37,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:37,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:37,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:20:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:37,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:37,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 02:20:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:37,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:37,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 02:20:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:37,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-20 02:20:37,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:37,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-20 02:20:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:37,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-20 02:20:37,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:37,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 02:20:37,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:37,729 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2022-07-20 02:20:37,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:20:37,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409788502] [2022-07-20 02:20:37,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409788502] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:20:37,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:20:37,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 02:20:37,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325907603] [2022-07-20 02:20:37,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:20:37,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 02:20:37,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:20:37,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 02:20:37,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 02:20:37,732 INFO L87 Difference]: Start difference. First operand 15475 states and 20977 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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) [2022-07-20 02:20:41,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:20:41,513 INFO L93 Difference]: Finished difference Result 43967 states and 59632 transitions. [2022-07-20 02:20:41,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 02:20:41,515 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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 121 [2022-07-20 02:20:41,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:20:41,657 INFO L225 Difference]: With dead ends: 43967 [2022-07-20 02:20:41,658 INFO L226 Difference]: Without dead ends: 28511 [2022-07-20 02:20:41,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 02:20:41,722 INFO L413 NwaCegarLoop]: 3131 mSDtfsCounter, 3209 mSDsluCounter, 2467 mSDsCounter, 0 mSdLazyCounter, 2297 mSolverCounterSat, 1486 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3652 SdHoareTripleChecker+Valid, 5598 SdHoareTripleChecker+Invalid, 3783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1486 IncrementalHoareTripleChecker+Valid, 2297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-20 02:20:41,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3652 Valid, 5598 Invalid, 3783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1486 Valid, 2297 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-20 02:20:41,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28511 states. [2022-07-20 02:20:42,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28511 to 27129. [2022-07-20 02:20:42,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27129 states, 18444 states have (on average 1.232216438950336) internal successors, (22727), 18959 states have internal predecessors, (22727), 6842 states have call successors, (6842), 1847 states have call predecessors, (6842), 1840 states have return successors, (6920), 6678 states have call predecessors, (6920), 6839 states have call successors, (6920) [2022-07-20 02:20:42,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27129 states to 27129 states and 36489 transitions. [2022-07-20 02:20:42,709 INFO L78 Accepts]: Start accepts. Automaton has 27129 states and 36489 transitions. Word has length 121 [2022-07-20 02:20:42,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:20:42,710 INFO L495 AbstractCegarLoop]: Abstraction has 27129 states and 36489 transitions. [2022-07-20 02:20:42,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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) [2022-07-20 02:20:42,710 INFO L276 IsEmpty]: Start isEmpty. Operand 27129 states and 36489 transitions. [2022-07-20 02:20:42,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-07-20 02:20:42,714 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:20:42,714 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2022-07-20 02:20:42,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-20 02:20:42,714 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:20:42,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:20:42,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1989039821, now seen corresponding path program 1 times [2022-07-20 02:20:42,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:20:42,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944757576] [2022-07-20 02:20:42,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:20:42,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:20:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:42,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:20:42,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:42,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:42,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:42,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:20:42,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:42,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:42,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:20:42,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:42,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:42,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:42,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:20:42,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:42,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:42,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:42,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:20:42,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:42,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:42,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:20:42,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:42,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:42,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:42,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 02:20:42,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:42,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:42,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:42,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 02:20:42,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:42,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-20 02:20:42,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:42,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 02:20:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:42,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-20 02:20:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:42,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 02:20:42,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:42,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:42,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:42,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 02:20:42,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:42,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 02:20:42,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:42,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-20 02:20:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:42,898 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-07-20 02:20:42,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:20:42,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944757576] [2022-07-20 02:20:42,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944757576] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:20:42,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:20:42,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 02:20:42,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464588616] [2022-07-20 02:20:42,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:20:42,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 02:20:42,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:20:42,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 02:20:42,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 02:20:42,901 INFO L87 Difference]: Start difference. First operand 27129 states and 36489 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-20 02:20:47,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:20:47,215 INFO L93 Difference]: Finished difference Result 82920 states and 112153 transitions. [2022-07-20 02:20:47,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 02:20:47,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 153 [2022-07-20 02:20:47,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:20:47,682 INFO L225 Difference]: With dead ends: 82920 [2022-07-20 02:20:47,683 INFO L226 Difference]: Without dead ends: 55856 [2022-07-20 02:20:47,782 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 [2022-07-20 02:20:47,783 INFO L413 NwaCegarLoop]: 2803 mSDtfsCounter, 3383 mSDsluCounter, 2264 mSDsCounter, 0 mSdLazyCounter, 2340 mSolverCounterSat, 1588 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3864 SdHoareTripleChecker+Valid, 5067 SdHoareTripleChecker+Invalid, 3928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1588 IncrementalHoareTripleChecker+Valid, 2340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-07-20 02:20:47,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3864 Valid, 5067 Invalid, 3928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1588 Valid, 2340 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-07-20 02:20:47,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55856 states. [2022-07-20 02:20:49,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55856 to 53152. [2022-07-20 02:20:49,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53152 states, 36170 states have (on average 1.2333701962952723) internal successors, (44611), 37134 states have internal predecessors, (44611), 13372 states have call successors, (13372), 3620 states have call predecessors, (13372), 3607 states have return successors, (13531), 13109 states have call predecessors, (13531), 13369 states have call successors, (13531) [2022-07-20 02:20:49,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53152 states to 53152 states and 71514 transitions. [2022-07-20 02:20:49,978 INFO L78 Accepts]: Start accepts. Automaton has 53152 states and 71514 transitions. Word has length 153 [2022-07-20 02:20:49,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:20:49,979 INFO L495 AbstractCegarLoop]: Abstraction has 53152 states and 71514 transitions. [2022-07-20 02:20:49,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-20 02:20:49,979 INFO L276 IsEmpty]: Start isEmpty. Operand 53152 states and 71514 transitions. [2022-07-20 02:20:49,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-07-20 02:20:49,981 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:20:49,982 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2022-07-20 02:20:49,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-20 02:20:49,982 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)] === [2022-07-20 02:20:49,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:20:49,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1883225649, now seen corresponding path program 1 times [2022-07-20 02:20:49,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:20:49,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77633795] [2022-07-20 02:20:49,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:20:49,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:20:50,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:50,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:20:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:50,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:50,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:20:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:50,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:50,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:50,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:20:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:50,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:50,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:20:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:50,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:50,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:20:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:50,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:50,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:20:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:50,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:50,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 02:20:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:50,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:50,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:50,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 02:20:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:50,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-20 02:20:50,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:50,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 02:20:50,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:50,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-20 02:20:50,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:50,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 02:20:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:50,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:50,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 02:20:50,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:50,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 02:20:50,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:50,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-20 02:20:50,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:50,217 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-07-20 02:20:50,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:20:50,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77633795] [2022-07-20 02:20:50,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77633795] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:20:50,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:20:50,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:20:50,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405736548] [2022-07-20 02:20:50,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:20:50,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:20:50,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:20:50,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:20:50,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:20:50,218 INFO L87 Difference]: Start difference. First operand 53152 states and 71514 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 02:20:53,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:20:53,746 INFO L93 Difference]: Finished difference Result 55838 states and 75688 transitions. [2022-07-20 02:20:53,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:20:53,747 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 153 [2022-07-20 02:20:53,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:20:54,081 INFO L225 Difference]: With dead ends: 55838 [2022-07-20 02:20:54,081 INFO L226 Difference]: Without dead ends: 55836 [2022-07-20 02:20:54,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:20:54,110 INFO L413 NwaCegarLoop]: 2402 mSDtfsCounter, 2706 mSDsluCounter, 3530 mSDsCounter, 0 mSdLazyCounter, 3138 mSolverCounterSat, 1108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2999 SdHoareTripleChecker+Valid, 5932 SdHoareTripleChecker+Invalid, 4246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1108 IncrementalHoareTripleChecker+Valid, 3138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-20 02:20:54,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2999 Valid, 5932 Invalid, 4246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1108 Valid, 3138 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-20 02:20:54,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55836 states. [2022-07-20 02:20:55,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55836 to 53156. [2022-07-20 02:20:55,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53156 states, 36173 states have (on average 1.233350841788074) internal successors, (44614), 37137 states have internal predecessors, (44614), 13372 states have call successors, (13372), 3621 states have call predecessors, (13372), 3608 states have return successors, (13531), 13109 states have call predecessors, (13531), 13369 states have call successors, (13531) [2022-07-20 02:20:56,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53156 states to 53156 states and 71517 transitions. [2022-07-20 02:20:56,124 INFO L78 Accepts]: Start accepts. Automaton has 53156 states and 71517 transitions. Word has length 153 [2022-07-20 02:20:56,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:20:56,125 INFO L495 AbstractCegarLoop]: Abstraction has 53156 states and 71517 transitions. [2022-07-20 02:20:56,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 02:20:56,125 INFO L276 IsEmpty]: Start isEmpty. Operand 53156 states and 71517 transitions. [2022-07-20 02:20:56,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-20 02:20:56,127 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:20:56,127 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2022-07-20 02:20:56,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-20 02:20:56,128 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)] === [2022-07-20 02:20:56,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:20:56,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1651165807, now seen corresponding path program 1 times [2022-07-20 02:20:56,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:20:56,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421282506] [2022-07-20 02:20:56,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:20:56,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:20:56,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:56,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:20:56,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:56,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:56,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:20:56,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:56,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:56,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:56,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:20:56,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:56,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:56,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:56,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:20:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:56,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:56,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:56,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:20:56,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:56,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:56,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:56,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:20:56,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:56,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:56,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 02:20:56,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:56,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:56,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:56,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 02:20:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:56,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-20 02:20:56,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:56,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 02:20:56,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:56,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-20 02:20:56,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:56,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 02:20:56,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:56,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:20:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:56,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 02:20:56,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:56,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 02:20:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:56,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-20 02:20:56,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:56,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-20 02:20:56,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:20:56,377 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-07-20 02:20:56,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:20:56,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421282506] [2022-07-20 02:20:56,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421282506] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:20:56,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:20:56,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:20:56,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018233957] [2022-07-20 02:20:56,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:20:56,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:20:56,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:20:56,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:20:56,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:20:56,380 INFO L87 Difference]: Start difference. First operand 53156 states and 71517 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 02:21:00,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:21:00,154 INFO L93 Difference]: Finished difference Result 55842 states and 75691 transitions. [2022-07-20 02:21:00,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:21:00,154 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 158 [2022-07-20 02:21:00,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:21:00,307 INFO L225 Difference]: With dead ends: 55842 [2022-07-20 02:21:00,307 INFO L226 Difference]: Without dead ends: 55840 [2022-07-20 02:21:00,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:21:00,329 INFO L413 NwaCegarLoop]: 2405 mSDtfsCounter, 2698 mSDsluCounter, 3530 mSDsCounter, 0 mSdLazyCounter, 3138 mSolverCounterSat, 1107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2991 SdHoareTripleChecker+Valid, 5935 SdHoareTripleChecker+Invalid, 4245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1107 IncrementalHoareTripleChecker+Valid, 3138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-20 02:21:00,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2991 Valid, 5935 Invalid, 4245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1107 Valid, 3138 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-20 02:21:00,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55840 states. [2022-07-20 02:21:01,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55840 to 53160. [2022-07-20 02:21:01,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53160 states, 36176 states have (on average 1.2333314904909332) internal successors, (44617), 37140 states have internal predecessors, (44617), 13372 states have call successors, (13372), 3622 states have call predecessors, (13372), 3609 states have return successors, (13531), 13109 states have call predecessors, (13531), 13369 states have call successors, (13531) [2022-07-20 02:21:02,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53160 states to 53160 states and 71520 transitions. [2022-07-20 02:21:02,097 INFO L78 Accepts]: Start accepts. Automaton has 53160 states and 71520 transitions. Word has length 158 [2022-07-20 02:21:02,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:21:02,098 INFO L495 AbstractCegarLoop]: Abstraction has 53160 states and 71520 transitions. [2022-07-20 02:21:02,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 02:21:02,098 INFO L276 IsEmpty]: Start isEmpty. Operand 53160 states and 71520 transitions. [2022-07-20 02:21:02,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-20 02:21:02,100 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:21:02,103 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 3, 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] [2022-07-20 02:21:02,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-20 02:21:02,103 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)] === [2022-07-20 02:21:02,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:21:02,104 INFO L85 PathProgramCache]: Analyzing trace with hash -835076721, now seen corresponding path program 1 times [2022-07-20 02:21:02,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:21:02,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352632209] [2022-07-20 02:21:02,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:21:02,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:21:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:02,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:21:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:02,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:02,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:02,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:21:02,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:02,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:02,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:21:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:02,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:02,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:02,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:21:02,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:02,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:02,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:02,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:21:02,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:02,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:02,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:02,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:21:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:02,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:02,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:02,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 02:21:02,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:02,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:02,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 02:21:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:02,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-20 02:21:02,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:02,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 02:21:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:02,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-20 02:21:02,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:02,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 02:21:02,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:02,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:02,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 02:21:02,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:02,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 02:21:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:02,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-20 02:21:02,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:02,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-20 02:21:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:02,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-20 02:21:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:02,527 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-07-20 02:21:02,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:21:02,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352632209] [2022-07-20 02:21:02,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352632209] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:21:02,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:21:02,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:21:02,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058228471] [2022-07-20 02:21:02,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:21:02,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:21:02,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:21:02,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:21:02,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:21:02,530 INFO L87 Difference]: Start difference. First operand 53160 states and 71520 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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) [2022-07-20 02:21:06,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:21:06,222 INFO L93 Difference]: Finished difference Result 55846 states and 75694 transitions. [2022-07-20 02:21:06,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:21:06,222 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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 163 [2022-07-20 02:21:06,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:21:06,464 INFO L225 Difference]: With dead ends: 55846 [2022-07-20 02:21:06,464 INFO L226 Difference]: Without dead ends: 55844 [2022-07-20 02:21:06,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:21:06,500 INFO L413 NwaCegarLoop]: 2405 mSDtfsCounter, 2698 mSDsluCounter, 3530 mSDsCounter, 0 mSdLazyCounter, 3138 mSolverCounterSat, 1106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2991 SdHoareTripleChecker+Valid, 5935 SdHoareTripleChecker+Invalid, 4244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1106 IncrementalHoareTripleChecker+Valid, 3138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-20 02:21:06,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2991 Valid, 5935 Invalid, 4244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1106 Valid, 3138 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-20 02:21:06,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55844 states. [2022-07-20 02:21:08,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55844 to 53164. [2022-07-20 02:21:08,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53164 states, 36179 states have (on average 1.2333121424030515) internal successors, (44620), 37143 states have internal predecessors, (44620), 13372 states have call successors, (13372), 3623 states have call predecessors, (13372), 3610 states have return successors, (13531), 13109 states have call predecessors, (13531), 13369 states have call successors, (13531) [2022-07-20 02:21:08,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53164 states to 53164 states and 71523 transitions. [2022-07-20 02:21:08,631 INFO L78 Accepts]: Start accepts. Automaton has 53164 states and 71523 transitions. Word has length 163 [2022-07-20 02:21:08,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:21:08,632 INFO L495 AbstractCegarLoop]: Abstraction has 53164 states and 71523 transitions. [2022-07-20 02:21:08,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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) [2022-07-20 02:21:08,633 INFO L276 IsEmpty]: Start isEmpty. Operand 53164 states and 71523 transitions. [2022-07-20 02:21:08,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-07-20 02:21:08,638 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:21:08,638 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2022-07-20 02:21:08,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-20 02:21:08,639 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)] === [2022-07-20 02:21:08,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:21:08,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1937954351, now seen corresponding path program 1 times [2022-07-20 02:21:08,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:21:08,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610939933] [2022-07-20 02:21:08,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:21:08,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:21:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:21:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:21:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:21:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:08,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:21:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:08,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:21:08,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:08,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:21:08,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 02:21:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 02:21:08,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-20 02:21:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 02:21:08,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-20 02:21:08,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 02:21:08,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 02:21:08,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 02:21:08,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-20 02:21:08,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-20 02:21:08,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-20 02:21:08,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-20 02:21:08,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:08,884 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2022-07-20 02:21:08,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:21:08,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610939933] [2022-07-20 02:21:08,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610939933] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:21:08,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:21:08,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:21:08,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032579160] [2022-07-20 02:21:08,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:21:08,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:21:08,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:21:08,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:21:08,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:21:08,886 INFO L87 Difference]: Start difference. First operand 53164 states and 71523 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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) [2022-07-20 02:21:12,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:21:12,744 INFO L93 Difference]: Finished difference Result 55850 states and 75697 transitions. [2022-07-20 02:21:12,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:21:12,745 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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 168 [2022-07-20 02:21:12,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:21:12,913 INFO L225 Difference]: With dead ends: 55850 [2022-07-20 02:21:12,913 INFO L226 Difference]: Without dead ends: 55848 [2022-07-20 02:21:12,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:21:12,937 INFO L413 NwaCegarLoop]: 2405 mSDtfsCounter, 2698 mSDsluCounter, 3530 mSDsCounter, 0 mSdLazyCounter, 3138 mSolverCounterSat, 1105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2991 SdHoareTripleChecker+Valid, 5935 SdHoareTripleChecker+Invalid, 4243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1105 IncrementalHoareTripleChecker+Valid, 3138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-20 02:21:12,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2991 Valid, 5935 Invalid, 4243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1105 Valid, 3138 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-20 02:21:12,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55848 states. [2022-07-20 02:21:14,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55848 to 53168. [2022-07-20 02:21:14,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53168 states, 36182 states have (on average 1.2332927975236305) internal successors, (44623), 37146 states have internal predecessors, (44623), 13372 states have call successors, (13372), 3624 states have call predecessors, (13372), 3611 states have return successors, (13531), 13109 states have call predecessors, (13531), 13369 states have call successors, (13531) [2022-07-20 02:21:14,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53168 states to 53168 states and 71526 transitions. [2022-07-20 02:21:14,873 INFO L78 Accepts]: Start accepts. Automaton has 53168 states and 71526 transitions. Word has length 168 [2022-07-20 02:21:14,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:21:14,873 INFO L495 AbstractCegarLoop]: Abstraction has 53168 states and 71526 transitions. [2022-07-20 02:21:14,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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) [2022-07-20 02:21:14,874 INFO L276 IsEmpty]: Start isEmpty. Operand 53168 states and 71526 transitions. [2022-07-20 02:21:14,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-07-20 02:21:14,876 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:21:14,876 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 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] [2022-07-20 02:21:14,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-20 02:21:14,877 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)] === [2022-07-20 02:21:14,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:21:14,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1186121393, now seen corresponding path program 1 times [2022-07-20 02:21:14,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:21:14,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360593593] [2022-07-20 02:21:14,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:21:14,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:21:14,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:14,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:21:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:14,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:14,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:14,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:21:14,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:14,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:14,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:14,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:21:14,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:14,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:14,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:15,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:21:15,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:15,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:15,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:15,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:21:15,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:15,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:15,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:15,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:21:15,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:15,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:15,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:15,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 02:21:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:15,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:15,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 02:21:15,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:15,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-20 02:21:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:15,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 02:21:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:15,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-20 02:21:15,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:15,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 02:21:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:15,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:15,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:15,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 02:21:15,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:15,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 02:21:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:15,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-20 02:21:15,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:15,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-20 02:21:15,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:15,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-20 02:21:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:15,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-20 02:21:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:15,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 02:21:15,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:15,107 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-07-20 02:21:15,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:21:15,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360593593] [2022-07-20 02:21:15,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360593593] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:21:15,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:21:15,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:21:15,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698545080] [2022-07-20 02:21:15,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:21:15,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:21:15,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:21:15,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:21:15,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:21:15,109 INFO L87 Difference]: Start difference. First operand 53168 states and 71526 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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) [2022-07-20 02:21:19,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:21:19,140 INFO L93 Difference]: Finished difference Result 55854 states and 75700 transitions. [2022-07-20 02:21:19,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:21:19,141 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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 173 [2022-07-20 02:21:19,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:21:19,326 INFO L225 Difference]: With dead ends: 55854 [2022-07-20 02:21:19,326 INFO L226 Difference]: Without dead ends: 55852 [2022-07-20 02:21:19,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:21:19,357 INFO L413 NwaCegarLoop]: 2405 mSDtfsCounter, 2698 mSDsluCounter, 3530 mSDsCounter, 0 mSdLazyCounter, 3138 mSolverCounterSat, 1104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2991 SdHoareTripleChecker+Valid, 5935 SdHoareTripleChecker+Invalid, 4242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1104 IncrementalHoareTripleChecker+Valid, 3138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-20 02:21:19,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2991 Valid, 5935 Invalid, 4242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1104 Valid, 3138 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-20 02:21:19,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55852 states. [2022-07-20 02:21:21,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55852 to 53172. [2022-07-20 02:21:21,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53172 states, 36185 states have (on average 1.2332734558518723) internal successors, (44626), 37149 states have internal predecessors, (44626), 13372 states have call successors, (13372), 3625 states have call predecessors, (13372), 3612 states have return successors, (13531), 13109 states have call predecessors, (13531), 13369 states have call successors, (13531) [2022-07-20 02:21:21,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53172 states to 53172 states and 71529 transitions. [2022-07-20 02:21:21,591 INFO L78 Accepts]: Start accepts. Automaton has 53172 states and 71529 transitions. Word has length 173 [2022-07-20 02:21:21,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:21:21,591 INFO L495 AbstractCegarLoop]: Abstraction has 53172 states and 71529 transitions. [2022-07-20 02:21:21,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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) [2022-07-20 02:21:21,592 INFO L276 IsEmpty]: Start isEmpty. Operand 53172 states and 71529 transitions. [2022-07-20 02:21:21,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-20 02:21:21,594 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:21:21,594 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 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] [2022-07-20 02:21:21,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-20 02:21:21,594 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)] === [2022-07-20 02:21:21,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:21:21,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1472142865, now seen corresponding path program 1 times [2022-07-20 02:21:21,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:21:21,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347964256] [2022-07-20 02:21:21,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:21:21,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:21:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:21:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:21:21,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:21:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:21:21,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:21:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:21:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:21,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 02:21:21,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:21,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 02:21:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-20 02:21:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 02:21:21,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-20 02:21:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 02:21:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:21,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 02:21:21,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 02:21:21,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-20 02:21:21,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-20 02:21:21,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-20 02:21:21,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-20 02:21:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 02:21:21,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-20 02:21:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:21,811 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2022-07-20 02:21:21,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:21:21,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347964256] [2022-07-20 02:21:21,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347964256] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:21:21,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:21:21,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:21:21,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686181620] [2022-07-20 02:21:21,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:21:21,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:21:21,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:21:21,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:21:21,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:21:21,814 INFO L87 Difference]: Start difference. First operand 53172 states and 71529 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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) [2022-07-20 02:21:25,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:21:25,492 INFO L93 Difference]: Finished difference Result 55858 states and 75703 transitions. [2022-07-20 02:21:25,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:21:25,493 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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) Word has length 178 [2022-07-20 02:21:25,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:21:25,676 INFO L225 Difference]: With dead ends: 55858 [2022-07-20 02:21:25,676 INFO L226 Difference]: Without dead ends: 55856 [2022-07-20 02:21:25,709 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 [2022-07-20 02:21:25,710 INFO L413 NwaCegarLoop]: 2405 mSDtfsCounter, 2698 mSDsluCounter, 3530 mSDsCounter, 0 mSdLazyCounter, 3138 mSolverCounterSat, 1103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2991 SdHoareTripleChecker+Valid, 5935 SdHoareTripleChecker+Invalid, 4241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1103 IncrementalHoareTripleChecker+Valid, 3138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-20 02:21:25,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2991 Valid, 5935 Invalid, 4241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1103 Valid, 3138 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-20 02:21:25,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55856 states. [2022-07-20 02:21:27,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55856 to 53176. [2022-07-20 02:21:27,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53176 states, 36188 states have (on average 1.233254117386979) internal successors, (44629), 37152 states have internal predecessors, (44629), 13372 states have call successors, (13372), 3626 states have call predecessors, (13372), 3613 states have return successors, (13531), 13109 states have call predecessors, (13531), 13369 states have call successors, (13531) [2022-07-20 02:21:27,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53176 states to 53176 states and 71532 transitions. [2022-07-20 02:21:27,882 INFO L78 Accepts]: Start accepts. Automaton has 53176 states and 71532 transitions. Word has length 178 [2022-07-20 02:21:27,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:21:27,884 INFO L495 AbstractCegarLoop]: Abstraction has 53176 states and 71532 transitions. [2022-07-20 02:21:27,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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) [2022-07-20 02:21:27,884 INFO L276 IsEmpty]: Start isEmpty. Operand 53176 states and 71532 transitions. [2022-07-20 02:21:27,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-20 02:21:27,887 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:21:27,887 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 4, 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] [2022-07-20 02:21:27,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-20 02:21:27,887 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:21:27,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:21:27,888 INFO L85 PathProgramCache]: Analyzing trace with hash -663046897, now seen corresponding path program 1 times [2022-07-20 02:21:27,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:21:27,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782137400] [2022-07-20 02:21:27,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:21:27,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:21:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:27,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:21:27,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:27,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:27,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:27,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:21:27,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:27,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:27,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:21:28,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:28,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:28,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:28,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:21:28,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:28,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:28,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:21:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:28,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:28,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:21:28,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:28,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:28,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 02:21:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:28,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:28,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:28,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 02:21:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:28,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-20 02:21:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:28,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 02:21:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:28,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-20 02:21:28,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:28,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 02:21:28,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:28,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:28,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:28,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 02:21:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:28,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 02:21:28,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:28,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-20 02:21:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:28,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-20 02:21:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:28,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-20 02:21:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:28,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-20 02:21:28,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:28,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 02:21:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:28,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-20 02:21:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:28,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-20 02:21:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:28,096 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-07-20 02:21:28,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:21:28,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782137400] [2022-07-20 02:21:28,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782137400] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:21:28,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:21:28,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:21:28,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668560828] [2022-07-20 02:21:28,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:21:28,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:21:28,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:21:28,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:21:28,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:21:28,098 INFO L87 Difference]: Start difference. First operand 53176 states and 71532 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-20 02:21:35,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:21:35,287 INFO L93 Difference]: Finished difference Result 107811 states and 146869 transitions. [2022-07-20 02:21:35,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 02:21:35,287 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 183 [2022-07-20 02:21:35,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:21:35,658 INFO L225 Difference]: With dead ends: 107811 [2022-07-20 02:21:35,658 INFO L226 Difference]: Without dead ends: 107809 [2022-07-20 02:21:35,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-20 02:21:35,710 INFO L413 NwaCegarLoop]: 2891 mSDtfsCounter, 3251 mSDsluCounter, 5289 mSDsCounter, 0 mSdLazyCounter, 5918 mSolverCounterSat, 1526 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3706 SdHoareTripleChecker+Valid, 8180 SdHoareTripleChecker+Invalid, 7444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1526 IncrementalHoareTripleChecker+Valid, 5918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-07-20 02:21:35,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3706 Valid, 8180 Invalid, 7444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1526 Valid, 5918 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-07-20 02:21:35,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107809 states. [2022-07-20 02:21:39,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107809 to 102487. [2022-07-20 02:21:39,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102487 states, 69973 states have (on average 1.234576193674703) internal successors, (86387), 71999 states have internal predecessors, (86387), 25516 states have call successors, (25516), 7153 states have call predecessors, (25516), 6995 states have return successors, (26502), 24620 states have call predecessors, (26502), 25510 states have call successors, (26502) [2022-07-20 02:21:39,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102487 states to 102487 states and 138405 transitions. [2022-07-20 02:21:39,750 INFO L78 Accepts]: Start accepts. Automaton has 102487 states and 138405 transitions. Word has length 183 [2022-07-20 02:21:39,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:21:39,750 INFO L495 AbstractCegarLoop]: Abstraction has 102487 states and 138405 transitions. [2022-07-20 02:21:39,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-20 02:21:39,751 INFO L276 IsEmpty]: Start isEmpty. Operand 102487 states and 138405 transitions. [2022-07-20 02:21:39,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-07-20 02:21:39,753 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:21:39,753 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2022-07-20 02:21:39,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-20 02:21:39,754 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:21:39,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:21:39,754 INFO L85 PathProgramCache]: Analyzing trace with hash 690285999, now seen corresponding path program 1 times [2022-07-20 02:21:39,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:21:39,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791067230] [2022-07-20 02:21:39,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:21:39,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:21:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:39,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:21:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:39,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:39,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:21:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:39,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:39,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:39,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:21:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:39,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:39,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:21:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:39,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:39,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:39,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:21:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:39,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:39,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:39,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:21:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:39,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:39,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 02:21:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:39,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:39,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 02:21:39,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:39,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-20 02:21:39,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:39,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 02:21:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:39,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-20 02:21:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:39,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 02:21:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:39,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:21:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:39,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 02:21:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:40,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 02:21:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:40,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-20 02:21:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:40,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-20 02:21:40,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:40,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-20 02:21:40,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:40,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-20 02:21:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:40,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 02:21:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:40,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-20 02:21:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:40,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-20 02:21:40,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:40,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-20 02:21:40,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:21:40,227 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2022-07-20 02:21:40,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:21:40,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791067230] [2022-07-20 02:21:40,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791067230] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:21:40,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:21:40,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:21:40,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005973128] [2022-07-20 02:21:40,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:21:40,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:21:40,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:21:40,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:21:40,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:21:40,230 INFO L87 Difference]: Start difference. First operand 102487 states and 138405 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-20 02:21:45,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:21:45,315 INFO L93 Difference]: Finished difference Result 107721 states and 146781 transitions. [2022-07-20 02:21:45,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:21:45,325 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 188 [2022-07-20 02:21:45,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:21:45,705 INFO L225 Difference]: With dead ends: 107721 [2022-07-20 02:21:45,706 INFO L226 Difference]: Without dead ends: 107719 [2022-07-20 02:21:45,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:21:45,757 INFO L413 NwaCegarLoop]: 2405 mSDtfsCounter, 2698 mSDsluCounter, 3530 mSDsCounter, 0 mSdLazyCounter, 3138 mSolverCounterSat, 1101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2991 SdHoareTripleChecker+Valid, 5935 SdHoareTripleChecker+Invalid, 4239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1101 IncrementalHoareTripleChecker+Valid, 3138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-20 02:21:45,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2991 Valid, 5935 Invalid, 4239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1101 Valid, 3138 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-20 02:21:45,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107719 states. [2022-07-20 02:21:49,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107719 to 102495. [2022-07-20 02:21:49,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102495 states, 69979 states have (on average 1.2345560811100473) internal successors, (86393), 72005 states have internal predecessors, (86393), 25516 states have call successors, (25516), 7155 states have call predecessors, (25516), 6997 states have return successors, (26502), 24620 states have call predecessors, (26502), 25510 states have call successors, (26502)