./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.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 d46a0c21917156d86326b49faaf0b679a3e4aece26c641cfed6d2cba03552492 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 05:00:02,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 05:00:02,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 05:00:02,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 05:00:02,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 05:00:02,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 05:00:02,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 05:00:02,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 05:00:02,844 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 05:00:02,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 05:00:02,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 05:00:02,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 05:00:02,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 05:00:02,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 05:00:02,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 05:00:02,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 05:00:02,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 05:00:02,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 05:00:02,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 05:00:02,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 05:00:02,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 05:00:02,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 05:00:02,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 05:00:02,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 05:00:02,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 05:00:02,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 05:00:02,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 05:00:02,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 05:00:02,888 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 05:00:02,889 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 05:00:02,889 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 05:00:02,890 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 05:00:02,891 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 05:00:02,891 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 05:00:02,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 05:00:02,893 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 05:00:02,893 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 05:00:02,893 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 05:00:02,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 05:00:02,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 05:00:02,895 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 05:00:02,896 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 05:00:02,913 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 05:00:02,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 05:00:02,914 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 05:00:02,914 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 05:00:02,915 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 05:00:02,915 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 05:00:02,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 05:00:02,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 05:00:02,915 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 05:00:02,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 05:00:02,916 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 05:00:02,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 05:00:02,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 05:00:02,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 05:00:02,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 05:00:02,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 05:00:02,917 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 05:00:02,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 05:00:02,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 05:00:02,917 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 05:00:02,917 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 05:00:02,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 05:00:02,918 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 05:00:02,918 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 05:00:02,918 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 05:00:02,918 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 05:00:02,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 05:00:02,918 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 05:00:02,918 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 05:00:02,919 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 05:00:02,919 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d46a0c21917156d86326b49faaf0b679a3e4aece26c641cfed6d2cba03552492 [2021-12-28 05:00:03,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 05:00:03,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 05:00:03,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 05:00:03,213 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 05:00:03,215 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 05:00:03,216 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2021-12-28 05:00:03,263 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f121d6eff/d31e5c882b934937a1c8673546280c6b/FLAGc81a20919 [2021-12-28 05:00:04,047 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 05:00:04,047 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2021-12-28 05:00:04,103 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f121d6eff/d31e5c882b934937a1c8673546280c6b/FLAGc81a20919 [2021-12-28 05:00:04,242 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f121d6eff/d31e5c882b934937a1c8673546280c6b [2021-12-28 05:00:04,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 05:00:04,247 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 05:00:04,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 05:00:04,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 05:00:04,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 05:00:04,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:00:04" (1/1) ... [2021-12-28 05:00:04,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b35e3f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:00:04, skipping insertion in model container [2021-12-28 05:00:04,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:00:04" (1/1) ... [2021-12-28 05:00:04,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 05:00:04,390 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 05:00:07,011 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[450587,450600] [2021-12-28 05:00:07,013 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[450756,450769] [2021-12-28 05:00:07,014 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[450923,450936] [2021-12-28 05:00:07,014 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[451091,451104] [2021-12-28 05:00:07,042 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 05:00:07,096 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 05:00:07,463 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[450587,450600] [2021-12-28 05:00:07,464 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[450756,450769] [2021-12-28 05:00:07,465 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[450923,450936] [2021-12-28 05:00:07,465 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[451091,451104] [2021-12-28 05:00:07,472 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 05:00:07,720 INFO L208 MainTranslator]: Completed translation [2021-12-28 05:00:07,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:00:07 WrapperNode [2021-12-28 05:00:07,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 05:00:07,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 05:00:07,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 05:00:07,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 05:00:07,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:00:07" (1/1) ... [2021-12-28 05:00:07,888 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:00:07" (1/1) ... [2021-12-28 05:00:08,052 INFO L137 Inliner]: procedures = 547, calls = 4326, calls flagged for inlining = 248, calls inlined = 226, statements flattened = 8589 [2021-12-28 05:00:08,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 05:00:08,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 05:00:08,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 05:00:08,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 05:00:08,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:00:07" (1/1) ... [2021-12-28 05:00:08,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:00:07" (1/1) ... [2021-12-28 05:00:08,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:00:07" (1/1) ... [2021-12-28 05:00:08,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:00:07" (1/1) ... [2021-12-28 05:00:08,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:00:07" (1/1) ... [2021-12-28 05:00:08,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:00:07" (1/1) ... [2021-12-28 05:00:08,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:00:07" (1/1) ... [2021-12-28 05:00:08,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 05:00:08,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 05:00:08,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 05:00:08,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 05:00:08,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:00:07" (1/1) ... [2021-12-28 05:00:08,392 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 05:00:08,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 05:00:08,411 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) [2021-12-28 05:00:08,439 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 [2021-12-28 05:00:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-28 05:00:08,452 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-28 05:00:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-28 05:00:08,452 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-28 05:00:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-28 05:00:08,452 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-28 05:00:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2021-12-28 05:00:08,452 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2021-12-28 05:00:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_nway_reset [2021-12-28 05:00:08,453 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_nway_reset [2021-12-28 05:00:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-28 05:00:08,453 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-28 05:00:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2021-12-28 05:00:08,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2021-12-28 05:00:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 05:00:08,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 05:00:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-28 05:00:08,453 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-28 05:00:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure set_8021q_mode [2021-12-28 05:00:08,453 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8021q_mode [2021-12-28 05:00:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_82 [2021-12-28 05:00:08,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_82 [2021-12-28 05:00:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_remove_one [2021-12-28 05:00:08,454 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_remove_one [2021-12-28 05:00:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-28 05:00:08,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-28 05:00:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-12-28 05:00:08,454 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-12-28 05:00:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure issue_and_wait [2021-12-28 05:00:08,454 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_and_wait [2021-12-28 05:00:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-28 05:00:08,454 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-28 05:00:08,459 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-12-28 05:00:08,459 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-12-28 05:00:08,459 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-12-28 05:00:08,459 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-12-28 05:00:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure window_write32 [2021-12-28 05:00:08,460 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write32 [2021-12-28 05:00:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-28 05:00:08,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-28 05:00:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_65 [2021-12-28 05:00:08,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_65 [2021-12-28 05:00:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-28 05:00:08,460 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-28 05:00:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_5 [2021-12-28 05:00:08,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_5 [2021-12-28 05:00:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 05:00:08,461 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 05:00:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_window_lock_of_vortex_private [2021-12-28 05:00:08,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_window_lock_of_vortex_private [2021-12-28 05:00:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_vortex_private [2021-12-28 05:00:08,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_vortex_private [2021-12-28 05:00:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure window_set [2021-12-28 05:00:08,461 INFO L138 BoogieDeclarations]: Found implementation of procedure window_set [2021-12-28 05:00:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-28 05:00:08,461 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-28 05:00:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-28 05:00:08,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-28 05:00:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-28 05:00:08,475 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-28 05:00:08,475 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-28 05:00:08,475 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-28 05:00:08,475 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-28 05:00:08,475 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-28 05:00:08,475 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-12-28 05:00:08,475 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-12-28 05:00:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-28 05:00:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-28 05:00:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-28 05:00:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-28 05:00:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-12-28 05:00:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-12-28 05:00:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 05:00:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 05:00:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_5_2 [2021-12-28 05:00:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_5_2 [2021-12-28 05:00:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-28 05:00:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-28 05:00:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 05:00:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tx_timestamp [2021-12-28 05:00:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tx_timestamp [2021-12-28 05:00:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-12-28 05:00:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-12-28 05:00:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-28 05:00:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-28 05:00:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-28 05:00:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-28 05:00:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 05:00:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_tx_timeout [2021-12-28 05:00:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_tx_timeout [2021-12-28 05:00:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-12-28 05:00:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-12-28 05:00:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure ioport_map [2021-12-28 05:00:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ioport_map [2021-12-28 05:00:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-28 05:00:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-28 05:00:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-12-28 05:00:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-12-28 05:00:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-28 05:00:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-28 05:00:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 05:00:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-28 05:00:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-28 05:00:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 05:00:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_interrupt [2021-12-28 05:00:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_interrupt [2021-12-28 05:00:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-12-28 05:00:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-12-28 05:00:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-28 05:00:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-28 05:00:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-28 05:00:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-28 05:00:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-28 05:00:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-28 05:00:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-28 05:00:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-28 05:00:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-28 05:00:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-28 05:00:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_set_duplex [2021-12-28 05:00:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_set_duplex [2021-12-28 05:00:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_83 [2021-12-28 05:00:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_83 [2021-12-28 05:00:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-12-28 05:00:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-12-28 05:00:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-12-28 05:00:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-12-28 05:00:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-28 05:00:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-28 05:00:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_error [2021-12-28 05:00:08,480 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_error [2021-12-28 05:00:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-28 05:00:08,480 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-28 05:00:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_close [2021-12-28 05:00:08,480 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_close [2021-12-28 05:00:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-28 05:00:08,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-28 05:00:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 05:00:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2021-12-28 05:00:08,480 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2021-12-28 05:00:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-28 05:00:08,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-28 05:00:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 05:00:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-28 05:00:08,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-28 05:00:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-28 05:00:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-28 05:00:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 05:00:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-12-28 05:00:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-12-28 05:00:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 05:00:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 05:00:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-28 05:00:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-28 05:00:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-28 05:00:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-28 05:00:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_98 [2021-12-28 05:00:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_98 [2021-12-28 05:00:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_set_WOL [2021-12-28 05:00:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_set_WOL [2021-12-28 05:00:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-28 05:00:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-28 05:00:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure window_write16 [2021-12-28 05:00:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write16 [2021-12-28 05:00:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-12-28 05:00:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-12-28 05:00:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-28 05:00:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-28 05:00:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure window_read8 [2021-12-28 05:00:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read8 [2021-12-28 05:00:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-28 05:00:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-28 05:00:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure update_stats [2021-12-28 05:00:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure update_stats [2021-12-28 05:00:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-28 05:00:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-28 05:00:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-28 05:00:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-28 05:00:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure poll_vortex [2021-12-28 05:00:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_vortex [2021-12-28 05:00:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-28 05:00:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-28 05:00:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_window_lock_of_vortex_private [2021-12-28 05:00:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_window_lock_of_vortex_private [2021-12-28 05:00:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_check_media [2021-12-28 05:00:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_check_media [2021-12-28 05:00:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-12-28 05:00:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-12-28 05:00:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-12-28 05:00:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-12-28 05:00:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_rx [2021-12-28 05:00:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_rx [2021-12-28 05:00:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-12-28 05:00:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-12-28 05:00:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_open [2021-12-28 05:00:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_open [2021-12-28 05:00:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure dump_tx_ring [2021-12-28 05:00:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_tx_ring [2021-12-28 05:00:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-28 05:00:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-28 05:00:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 05:00:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 05:00:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_probe1 [2021-12-28 05:00:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_probe1 [2021-12-28 05:00:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 05:00:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 05:00:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 05:00:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 05:00:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-28 05:00:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-28 05:00:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-28 05:00:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-28 05:00:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2021-12-28 05:00:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2021-12-28 05:00:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-28 05:00:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-28 05:00:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-28 05:00:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-28 05:00:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-12-28 05:00:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-12-28 05:00:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-28 05:00:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-28 05:00:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-28 05:00:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-28 05:00:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 05:00:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-12-28 05:00:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-12-28 05:00:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-28 05:00:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-28 05:00:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 05:00:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_suspend [2021-12-28 05:00:08,486 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_suspend [2021-12-28 05:00:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_interrupt [2021-12-28 05:00:08,486 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_interrupt [2021-12-28 05:00:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_81 [2021-12-28 05:00:08,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_81 [2021-12-28 05:00:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 05:00:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-28 05:00:08,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-28 05:00:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure rx_oom_timer [2021-12-28 05:00:08,486 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_oom_timer [2021-12-28 05:00:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-12-28 05:00:08,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-12-28 05:00:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-28 05:00:08,486 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-28 05:00:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-28 05:00:08,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-28 05:00:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-28 05:00:08,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-28 05:00:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_108 [2021-12-28 05:00:08,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_108 [2021-12-28 05:00:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-28 05:00:08,487 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-28 05:00:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2021-12-28 05:00:08,487 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2021-12-28 05:00:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_89 [2021-12-28 05:00:08,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_89 [2021-12-28 05:00:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_88 [2021-12-28 05:00:08,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_88 [2021-12-28 05:00:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_resume [2021-12-28 05:00:08,487 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_resume [2021-12-28 05:00:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-12-28 05:00:08,487 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-12-28 05:00:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-28 05:00:08,488 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-28 05:00:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_rx [2021-12-28 05:00:08,488 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_rx [2021-12-28 05:00:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-28 05:00:08,488 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-28 05:00:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-28 05:00:08,488 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-28 05:00:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-28 05:00:08,488 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-28 05:00:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-28 05:00:08,488 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-28 05:00:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_delay [2021-12-28 05:00:08,488 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_delay [2021-12-28 05:00:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_timer [2021-12-28 05:00:08,488 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_timer [2021-12-28 05:00:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 05:00:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_down [2021-12-28 05:00:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_down [2021-12-28 05:00:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-12-28 05:00:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-12-28 05:00:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-28 05:00:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-28 05:00:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 05:00:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 05:00:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure window_write8 [2021-12-28 05:00:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write8 [2021-12-28 05:00:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure window_read32 [2021-12-28 05:00:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read32 [2021-12-28 05:00:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_10_2 [2021-12-28 05:00:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_10_2 [2021-12-28 05:00:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-12-28 05:00:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-12-28 05:00:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_109 [2021-12-28 05:00:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_109 [2021-12-28 05:00:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_94 [2021-12-28 05:00:08,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_94 [2021-12-28 05:00:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2021-12-28 05:00:08,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2021-12-28 05:00:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_90 [2021-12-28 05:00:08,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_90 [2021-12-28 05:00:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-28 05:00:08,490 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-28 05:00:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_up [2021-12-28 05:00:08,490 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_up [2021-12-28 05:00:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure window_read16 [2021-12-28 05:00:08,490 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read16 [2021-12-28 05:00:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-28 05:00:08,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-28 05:00:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-12-28 05:00:08,490 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-12-28 05:00:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-28 05:00:08,490 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-28 05:00:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-28 05:00:08,491 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-28 05:00:08,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_vortex_private [2021-12-28 05:00:08,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_vortex_private [2021-12-28 05:00:08,491 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-28 05:00:08,491 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-28 05:00:08,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 05:00:08,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-28 05:00:08,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-28 05:00:08,507 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-28 05:00:08,507 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-28 05:00:09,299 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 05:00:09,302 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 05:00:10,388 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 05:00:13,800 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 05:00:13,815 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 05:00:13,815 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 05:00:13,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:00:13 BoogieIcfgContainer [2021-12-28 05:00:13,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 05:00:13,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 05:00:13,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 05:00:13,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 05:00:13,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:00:04" (1/3) ... [2021-12-28 05:00:13,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d3d25e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:00:13, skipping insertion in model container [2021-12-28 05:00:13,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:00:07" (2/3) ... [2021-12-28 05:00:13,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d3d25e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:00:13, skipping insertion in model container [2021-12-28 05:00:13,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:00:13" (3/3) ... [2021-12-28 05:00:13,823 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2021-12-28 05:00:13,826 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 05:00:13,826 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-28 05:00:13,872 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 05:00:13,877 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 05:00:13,877 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-28 05:00:13,921 INFO L276 IsEmpty]: Start isEmpty. Operand has 2828 states, 1912 states have (on average 1.3284518828451883) internal successors, (2540), 2000 states have internal predecessors, (2540), 758 states have call successors, (758), 155 states have call predecessors, (758), 154 states have return successors, (751), 733 states have call predecessors, (751), 751 states have call successors, (751) [2021-12-28 05:00:13,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-28 05:00:13,928 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:13,928 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:13,929 INFO L402 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)] === [2021-12-28 05:00:13,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:13,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1624278035, now seen corresponding path program 1 times [2021-12-28 05:00:13,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:13,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778454927] [2021-12-28 05:00:13,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:13,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:14,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:14,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:14,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:14,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:14,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-28 05:00:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:14,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:14,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:14,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 05:00:14,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:14,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-28 05:00:14,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:14,553 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-28 05:00:14,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:14,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778454927] [2021-12-28 05:00:14,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778454927] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:14,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:14,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 05:00:14,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662001348] [2021-12-28 05:00:14,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:14,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 05:00:14,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:14,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 05:00:14,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-28 05:00:14,605 INFO L87 Difference]: Start difference. First operand has 2828 states, 1912 states have (on average 1.3284518828451883) internal successors, (2540), 2000 states have internal predecessors, (2540), 758 states have call successors, (758), 155 states have call predecessors, (758), 154 states have return successors, (751), 733 states have call predecessors, (751), 751 states have call successors, (751) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-28 05:00:17,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:17,524 INFO L93 Difference]: Finished difference Result 9850 states and 14683 transitions. [2021-12-28 05:00:17,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 05:00:17,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 55 [2021-12-28 05:00:17,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:17,584 INFO L225 Difference]: With dead ends: 9850 [2021-12-28 05:00:17,584 INFO L226 Difference]: Without dead ends: 7017 [2021-12-28 05:00:17,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-28 05:00:17,617 INFO L933 BasicCegarLoop]: 6553 mSDtfsCounter, 7704 mSDsluCounter, 5804 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 1186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7704 SdHoareTripleChecker+Valid, 12357 SdHoareTripleChecker+Invalid, 2384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1186 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:17,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7704 Valid, 12357 Invalid, 2384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1186 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-28 05:00:17,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7017 states. [2021-12-28 05:00:17,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7017 to 6957. [2021-12-28 05:00:17,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6957 states, 4622 states have (on average 1.3067935958459542) internal successors, (6040), 4828 states have internal predecessors, (6040), 1897 states have call successors, (1897), 436 states have call predecessors, (1897), 435 states have return successors, (1894), 1846 states have call predecessors, (1894), 1894 states have call successors, (1894) [2021-12-28 05:00:18,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6957 states to 6957 states and 9831 transitions. [2021-12-28 05:00:18,009 INFO L78 Accepts]: Start accepts. Automaton has 6957 states and 9831 transitions. Word has length 55 [2021-12-28 05:00:18,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:18,010 INFO L470 AbstractCegarLoop]: Abstraction has 6957 states and 9831 transitions. [2021-12-28 05:00:18,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-28 05:00:18,010 INFO L276 IsEmpty]: Start isEmpty. Operand 6957 states and 9831 transitions. [2021-12-28 05:00:18,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-28 05:00:18,019 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:18,019 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:18,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 05:00:18,020 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-28 05:00:18,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:18,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1899037649, now seen corresponding path program 1 times [2021-12-28 05:00:18,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:18,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890092742] [2021-12-28 05:00:18,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:18,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:18,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:18,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:18,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:18,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-28 05:00:18,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:18,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:18,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 05:00:18,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:18,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-28 05:00:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:18,403 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-28 05:00:18,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:18,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890092742] [2021-12-28 05:00:18,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890092742] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:18,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:18,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:18,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686964852] [2021-12-28 05:00:18,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:18,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:18,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:18,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:18,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:18,407 INFO L87 Difference]: Start difference. First operand 6957 states and 9831 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-28 05:00:18,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:18,610 INFO L93 Difference]: Finished difference Result 6963 states and 9836 transitions. [2021-12-28 05:00:18,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:18,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 55 [2021-12-28 05:00:18,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:18,646 INFO L225 Difference]: With dead ends: 6963 [2021-12-28 05:00:18,646 INFO L226 Difference]: Without dead ends: 6961 [2021-12-28 05:00:18,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:18,653 INFO L933 BasicCegarLoop]: 4012 mSDtfsCounter, 3983 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3996 SdHoareTripleChecker+Valid, 12021 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:18,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3996 Valid, 12021 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:18,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6961 states. [2021-12-28 05:00:18,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6961 to 6961. [2021-12-28 05:00:18,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6961 states, 4625 states have (on average 1.3065945945945947) internal successors, (6043), 4831 states have internal predecessors, (6043), 1897 states have call successors, (1897), 437 states have call predecessors, (1897), 436 states have return successors, (1894), 1846 states have call predecessors, (1894), 1894 states have call successors, (1894) [2021-12-28 05:00:18,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6961 states to 6961 states and 9834 transitions. [2021-12-28 05:00:18,938 INFO L78 Accepts]: Start accepts. Automaton has 6961 states and 9834 transitions. Word has length 55 [2021-12-28 05:00:18,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:18,938 INFO L470 AbstractCegarLoop]: Abstraction has 6961 states and 9834 transitions. [2021-12-28 05:00:18,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-28 05:00:18,939 INFO L276 IsEmpty]: Start isEmpty. Operand 6961 states and 9834 transitions. [2021-12-28 05:00:18,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-12-28 05:00:18,940 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:18,941 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:18,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 05:00:18,941 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-28 05:00:18,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:18,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1241173696, now seen corresponding path program 1 times [2021-12-28 05:00:18,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:18,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212948711] [2021-12-28 05:00:18,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:18,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:19,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:19,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:19,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:19,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-28 05:00:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:19,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:19,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 05:00:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:19,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-28 05:00:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:19,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-28 05:00:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:19,262 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-28 05:00:19,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:19,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212948711] [2021-12-28 05:00:19,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212948711] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:19,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:19,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:19,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033853437] [2021-12-28 05:00:19,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:19,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:19,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:19,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:19,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:19,266 INFO L87 Difference]: Start difference. First operand 6961 states and 9834 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-28 05:00:19,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:19,493 INFO L93 Difference]: Finished difference Result 6967 states and 9839 transitions. [2021-12-28 05:00:19,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:19,494 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2021-12-28 05:00:19,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:19,529 INFO L225 Difference]: With dead ends: 6967 [2021-12-28 05:00:19,530 INFO L226 Difference]: Without dead ends: 6965 [2021-12-28 05:00:19,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:19,543 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3978 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3990 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:19,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3990 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:19,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6965 states. [2021-12-28 05:00:19,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6965 to 6965. [2021-12-28 05:00:19,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6965 states, 4628 states have (on average 1.3063958513396716) internal successors, (6046), 4834 states have internal predecessors, (6046), 1897 states have call successors, (1897), 438 states have call predecessors, (1897), 437 states have return successors, (1894), 1846 states have call predecessors, (1894), 1894 states have call successors, (1894) [2021-12-28 05:00:19,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6965 states to 6965 states and 9837 transitions. [2021-12-28 05:00:19,920 INFO L78 Accepts]: Start accepts. Automaton has 6965 states and 9837 transitions. Word has length 60 [2021-12-28 05:00:19,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:19,922 INFO L470 AbstractCegarLoop]: Abstraction has 6965 states and 9837 transitions. [2021-12-28 05:00:19,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-28 05:00:19,924 INFO L276 IsEmpty]: Start isEmpty. Operand 6965 states and 9837 transitions. [2021-12-28 05:00:19,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-28 05:00:19,925 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:19,926 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:19,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 05:00:19,926 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-28 05:00:19,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:19,927 INFO L85 PathProgramCache]: Analyzing trace with hash 586024591, now seen corresponding path program 1 times [2021-12-28 05:00:19,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:19,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540173048] [2021-12-28 05:00:19,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:19,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:20,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:20,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:20,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:20,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-28 05:00:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:20,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:20,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 05:00:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:20,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-28 05:00:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:20,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-28 05:00:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:20,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 05:00:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:20,229 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-28 05:00:20,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:20,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540173048] [2021-12-28 05:00:20,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540173048] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:20,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:20,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:20,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507730315] [2021-12-28 05:00:20,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:20,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:20,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:20,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:20,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:20,231 INFO L87 Difference]: Start difference. First operand 6965 states and 9837 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-28 05:00:20,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:20,420 INFO L93 Difference]: Finished difference Result 6971 states and 9842 transitions. [2021-12-28 05:00:20,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:20,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2021-12-28 05:00:20,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:20,456 INFO L225 Difference]: With dead ends: 6971 [2021-12-28 05:00:20,456 INFO L226 Difference]: Without dead ends: 6969 [2021-12-28 05:00:20,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:20,465 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3978 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3989 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:20,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3989 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:20,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6969 states. [2021-12-28 05:00:20,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6969 to 6969. [2021-12-28 05:00:20,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6969 states, 4631 states have (on average 1.3061973655797883) internal successors, (6049), 4837 states have internal predecessors, (6049), 1897 states have call successors, (1897), 439 states have call predecessors, (1897), 438 states have return successors, (1894), 1846 states have call predecessors, (1894), 1894 states have call successors, (1894) [2021-12-28 05:00:20,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6969 states to 6969 states and 9840 transitions. [2021-12-28 05:00:20,716 INFO L78 Accepts]: Start accepts. Automaton has 6969 states and 9840 transitions. Word has length 65 [2021-12-28 05:00:20,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:20,716 INFO L470 AbstractCegarLoop]: Abstraction has 6969 states and 9840 transitions. [2021-12-28 05:00:20,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-28 05:00:20,717 INFO L276 IsEmpty]: Start isEmpty. Operand 6969 states and 9840 transitions. [2021-12-28 05:00:20,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-28 05:00:20,718 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:20,718 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:20,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 05:00:20,718 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-28 05:00:20,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:20,719 INFO L85 PathProgramCache]: Analyzing trace with hash 633171936, now seen corresponding path program 1 times [2021-12-28 05:00:20,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:20,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236238586] [2021-12-28 05:00:20,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:20,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:20,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:20,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:20,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:20,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:20,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-28 05:00:20,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:20,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:20,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 05:00:20,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:20,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-28 05:00:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:20,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-28 05:00:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:20,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 05:00:20,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:20,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 05:00:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:20,984 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-28 05:00:20,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:20,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236238586] [2021-12-28 05:00:20,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236238586] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:20,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:20,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:20,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463038241] [2021-12-28 05:00:20,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:20,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:20,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:20,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:20,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:20,986 INFO L87 Difference]: Start difference. First operand 6969 states and 9840 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-28 05:00:21,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:21,177 INFO L93 Difference]: Finished difference Result 6975 states and 9845 transitions. [2021-12-28 05:00:21,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:21,178 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 70 [2021-12-28 05:00:21,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:21,205 INFO L225 Difference]: With dead ends: 6975 [2021-12-28 05:00:21,205 INFO L226 Difference]: Without dead ends: 6973 [2021-12-28 05:00:21,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:21,212 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3978 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3988 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:21,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3988 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:21,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6973 states. [2021-12-28 05:00:21,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6973 to 6973. [2021-12-28 05:00:21,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6973 states, 4634 states have (on average 1.3059991368148467) internal successors, (6052), 4840 states have internal predecessors, (6052), 1897 states have call successors, (1897), 440 states have call predecessors, (1897), 439 states have return successors, (1894), 1846 states have call predecessors, (1894), 1894 states have call successors, (1894) [2021-12-28 05:00:21,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6973 states to 6973 states and 9843 transitions. [2021-12-28 05:00:21,526 INFO L78 Accepts]: Start accepts. Automaton has 6973 states and 9843 transitions. Word has length 70 [2021-12-28 05:00:21,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:21,526 INFO L470 AbstractCegarLoop]: Abstraction has 6973 states and 9843 transitions. [2021-12-28 05:00:21,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-28 05:00:21,527 INFO L276 IsEmpty]: Start isEmpty. Operand 6973 states and 9843 transitions. [2021-12-28 05:00:21,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-28 05:00:21,528 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:21,529 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:21,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 05:00:21,529 INFO L402 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)] === [2021-12-28 05:00:21,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:21,529 INFO L85 PathProgramCache]: Analyzing trace with hash -344833697, now seen corresponding path program 1 times [2021-12-28 05:00:21,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:21,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606723466] [2021-12-28 05:00:21,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:21,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:21,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:21,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:21,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:21,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-28 05:00:21,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:21,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:21,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:21,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 05:00:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:21,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-28 05:00:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:21,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 05:00:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:21,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 05:00:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:21,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 05:00:21,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:21,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 05:00:21,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:21,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 05:00:21,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:21,784 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-28 05:00:21,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:21,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606723466] [2021-12-28 05:00:21,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606723466] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:21,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:21,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 05:00:21,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056527045] [2021-12-28 05:00:21,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:21,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 05:00:21,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:21,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 05:00:21,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-28 05:00:21,787 INFO L87 Difference]: Start difference. First operand 6973 states and 9843 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-28 05:00:23,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:23,715 INFO L93 Difference]: Finished difference Result 11246 states and 15807 transitions. [2021-12-28 05:00:23,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 05:00:23,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 86 [2021-12-28 05:00:23,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:23,748 INFO L225 Difference]: With dead ends: 11246 [2021-12-28 05:00:23,748 INFO L226 Difference]: Without dead ends: 9129 [2021-12-28 05:00:23,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-28 05:00:23,763 INFO L933 BasicCegarLoop]: 7542 mSDtfsCounter, 6936 mSDsluCounter, 7052 mSDsCounter, 0 mSdLazyCounter, 1520 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6936 SdHoareTripleChecker+Valid, 14594 SdHoareTripleChecker+Invalid, 1523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:23,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6936 Valid, 14594 Invalid, 1523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1520 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-28 05:00:23,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9129 states. [2021-12-28 05:00:24,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9129 to 9037. [2021-12-28 05:00:24,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9037 states, 5984 states have (on average 1.3039772727272727) internal successors, (7803), 6251 states have internal predecessors, (7803), 2470 states have call successors, (2470), 581 states have call predecessors, (2470), 580 states have return successors, (2467), 2404 states have call predecessors, (2467), 2467 states have call successors, (2467) [2021-12-28 05:00:24,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9037 states to 9037 states and 12740 transitions. [2021-12-28 05:00:24,132 INFO L78 Accepts]: Start accepts. Automaton has 9037 states and 12740 transitions. Word has length 86 [2021-12-28 05:00:24,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:24,133 INFO L470 AbstractCegarLoop]: Abstraction has 9037 states and 12740 transitions. [2021-12-28 05:00:24,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-28 05:00:24,133 INFO L276 IsEmpty]: Start isEmpty. Operand 9037 states and 12740 transitions. [2021-12-28 05:00:24,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-28 05:00:24,135 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:24,135 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:24,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 05:00:24,135 INFO L402 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)] === [2021-12-28 05:00:24,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:24,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1132284143, now seen corresponding path program 1 times [2021-12-28 05:00:24,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:24,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298580077] [2021-12-28 05:00:24,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:24,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:24,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:24,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:24,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-28 05:00:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:24,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:24,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:24,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 05:00:24,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:24,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-28 05:00:24,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:24,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-28 05:00:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:24,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 05:00:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:24,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 05:00:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:24,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 05:00:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:24,393 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-12-28 05:00:24,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:24,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298580077] [2021-12-28 05:00:24,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298580077] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:24,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:24,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:24,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860504466] [2021-12-28 05:00:24,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:24,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:24,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:24,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:24,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:24,395 INFO L87 Difference]: Start difference. First operand 9037 states and 12740 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 05:00:24,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:24,588 INFO L93 Difference]: Finished difference Result 9043 states and 12745 transitions. [2021-12-28 05:00:24,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:24,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 75 [2021-12-28 05:00:24,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:24,616 INFO L225 Difference]: With dead ends: 9043 [2021-12-28 05:00:24,617 INFO L226 Difference]: Without dead ends: 9041 [2021-12-28 05:00:24,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:24,623 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3978 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3987 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:24,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3987 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:24,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9041 states. [2021-12-28 05:00:24,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9041 to 9041. [2021-12-28 05:00:24,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9041 states, 5987 states have (on average 1.3038249540671454) internal successors, (7806), 6254 states have internal predecessors, (7806), 2470 states have call successors, (2470), 582 states have call predecessors, (2470), 581 states have return successors, (2467), 2404 states have call predecessors, (2467), 2467 states have call successors, (2467) [2021-12-28 05:00:24,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9041 states to 9041 states and 12743 transitions. [2021-12-28 05:00:24,899 INFO L78 Accepts]: Start accepts. Automaton has 9041 states and 12743 transitions. Word has length 75 [2021-12-28 05:00:24,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:24,900 INFO L470 AbstractCegarLoop]: Abstraction has 9041 states and 12743 transitions. [2021-12-28 05:00:24,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 05:00:24,900 INFO L276 IsEmpty]: Start isEmpty. Operand 9041 states and 12743 transitions. [2021-12-28 05:00:24,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-28 05:00:24,905 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:24,905 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:24,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 05:00:24,905 INFO L402 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)] === [2021-12-28 05:00:24,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:24,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1249040640, now seen corresponding path program 1 times [2021-12-28 05:00:24,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:24,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247642097] [2021-12-28 05:00:24,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:24,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:24,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:25,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:25,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:25,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:25,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-28 05:00:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:25,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:25,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 05:00:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:25,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-28 05:00:25,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:25,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-28 05:00:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:25,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 05:00:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:25,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 05:00:25,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:25,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 05:00:25,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:25,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 05:00:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:25,185 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-28 05:00:25,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:25,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247642097] [2021-12-28 05:00:25,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247642097] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:25,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:25,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:25,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819186402] [2021-12-28 05:00:25,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:25,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:25,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:25,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:25,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:25,187 INFO L87 Difference]: Start difference. First operand 9041 states and 12743 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-28 05:00:25,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:25,437 INFO L93 Difference]: Finished difference Result 9047 states and 12748 transitions. [2021-12-28 05:00:25,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:25,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 80 [2021-12-28 05:00:25,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:25,469 INFO L225 Difference]: With dead ends: 9047 [2021-12-28 05:00:25,470 INFO L226 Difference]: Without dead ends: 9045 [2021-12-28 05:00:25,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:25,476 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3978 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3986 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:25,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3986 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:25,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9045 states. [2021-12-28 05:00:25,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9045 to 9045. [2021-12-28 05:00:25,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9045 states, 5990 states have (on average 1.3036727879799666) internal successors, (7809), 6257 states have internal predecessors, (7809), 2470 states have call successors, (2470), 583 states have call predecessors, (2470), 582 states have return successors, (2467), 2404 states have call predecessors, (2467), 2467 states have call successors, (2467) [2021-12-28 05:00:25,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9045 states to 9045 states and 12746 transitions. [2021-12-28 05:00:25,834 INFO L78 Accepts]: Start accepts. Automaton has 9045 states and 12746 transitions. Word has length 80 [2021-12-28 05:00:25,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:25,835 INFO L470 AbstractCegarLoop]: Abstraction has 9045 states and 12746 transitions. [2021-12-28 05:00:25,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-28 05:00:25,835 INFO L276 IsEmpty]: Start isEmpty. Operand 9045 states and 12746 transitions. [2021-12-28 05:00:25,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-28 05:00:25,837 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:25,837 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:25,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 05:00:25,837 INFO L402 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)] === [2021-12-28 05:00:25,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:25,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1487266301, now seen corresponding path program 1 times [2021-12-28 05:00:25,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:25,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151232067] [2021-12-28 05:00:25,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:25,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:25,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:26,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:26,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-28 05:00:26,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 05:00:26,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-28 05:00:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 05:00:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 05:00:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 05:00:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 05:00:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 05:00:26,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 05:00:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 05:00:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:26,089 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-12-28 05:00:26,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:26,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151232067] [2021-12-28 05:00:26,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151232067] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:26,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:26,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:26,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228730608] [2021-12-28 05:00:26,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:26,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:26,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:26,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:26,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:26,092 INFO L87 Difference]: Start difference. First operand 9045 states and 12746 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-28 05:00:26,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:26,449 INFO L93 Difference]: Finished difference Result 13703 states and 19256 transitions. [2021-12-28 05:00:26,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:26,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 96 [2021-12-28 05:00:26,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:26,497 INFO L225 Difference]: With dead ends: 13703 [2021-12-28 05:00:26,497 INFO L226 Difference]: Without dead ends: 13701 [2021-12-28 05:00:26,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:26,506 INFO L933 BasicCegarLoop]: 4989 mSDtfsCounter, 3604 mSDsluCounter, 11949 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3611 SdHoareTripleChecker+Valid, 16938 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:26,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3611 Valid, 16938 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:26,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13701 states. [2021-12-28 05:00:26,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13701 to 13689. [2021-12-28 05:00:26,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13689 states, 9012 states have (on average 1.3021526853084775) internal successors, (11735), 9411 states have internal predecessors, (11735), 3730 states have call successors, (3730), 969 states have call predecessors, (3730), 944 states have return successors, (3779), 3616 states have call predecessors, (3779), 3727 states have call successors, (3779) [2021-12-28 05:00:26,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13689 states to 13689 states and 19244 transitions. [2021-12-28 05:00:26,941 INFO L78 Accepts]: Start accepts. Automaton has 13689 states and 19244 transitions. Word has length 96 [2021-12-28 05:00:26,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:26,941 INFO L470 AbstractCegarLoop]: Abstraction has 13689 states and 19244 transitions. [2021-12-28 05:00:26,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-28 05:00:26,941 INFO L276 IsEmpty]: Start isEmpty. Operand 13689 states and 19244 transitions. [2021-12-28 05:00:26,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-28 05:00:26,943 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:26,943 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:26,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 05:00:26,944 INFO L402 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)] === [2021-12-28 05:00:26,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:26,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1541400626, now seen corresponding path program 1 times [2021-12-28 05:00:26,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:26,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121112393] [2021-12-28 05:00:26,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:26,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:27,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:27,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-28 05:00:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 05:00:27,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-28 05:00:27,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 05:00:27,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 05:00:27,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 05:00:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 05:00:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 05:00:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 05:00:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 05:00:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 05:00:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:27,221 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-28 05:00:27,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:27,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121112393] [2021-12-28 05:00:27,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121112393] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:27,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:27,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:27,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677701681] [2021-12-28 05:00:27,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:27,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:27,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:27,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:27,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:27,223 INFO L87 Difference]: Start difference. First operand 13689 states and 19244 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 05:00:27,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:27,540 INFO L93 Difference]: Finished difference Result 13695 states and 19249 transitions. [2021-12-28 05:00:27,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:27,541 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 101 [2021-12-28 05:00:27,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:27,602 INFO L225 Difference]: With dead ends: 13695 [2021-12-28 05:00:27,602 INFO L226 Difference]: Without dead ends: 13693 [2021-12-28 05:00:27,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:27,612 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3970 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3976 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:27,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3976 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:27,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13693 states. [2021-12-28 05:00:28,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13693 to 13693. [2021-12-28 05:00:28,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13693 states, 9015 states have (on average 1.3020521353300056) internal successors, (11738), 9414 states have internal predecessors, (11738), 3730 states have call successors, (3730), 970 states have call predecessors, (3730), 945 states have return successors, (3779), 3616 states have call predecessors, (3779), 3727 states have call successors, (3779) [2021-12-28 05:00:28,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13693 states to 13693 states and 19247 transitions. [2021-12-28 05:00:28,094 INFO L78 Accepts]: Start accepts. Automaton has 13693 states and 19247 transitions. Word has length 101 [2021-12-28 05:00:28,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:28,095 INFO L470 AbstractCegarLoop]: Abstraction has 13693 states and 19247 transitions. [2021-12-28 05:00:28,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 05:00:28,095 INFO L276 IsEmpty]: Start isEmpty. Operand 13693 states and 19247 transitions. [2021-12-28 05:00:28,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-28 05:00:28,097 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:28,097 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:28,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-28 05:00:28,098 INFO L402 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)] === [2021-12-28 05:00:28,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:28,098 INFO L85 PathProgramCache]: Analyzing trace with hash 2111075759, now seen corresponding path program 1 times [2021-12-28 05:00:28,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:28,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186535427] [2021-12-28 05:00:28,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:28,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:28,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-28 05:00:28,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:28,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 05:00:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-28 05:00:28,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-28 05:00:28,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 05:00:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 05:00:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 05:00:28,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 05:00:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 05:00:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 05:00:28,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-28 05:00:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:28,349 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-12-28 05:00:28,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:28,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186535427] [2021-12-28 05:00:28,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186535427] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:28,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:28,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:28,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489387240] [2021-12-28 05:00:28,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:28,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:28,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:28,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:28,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:28,351 INFO L87 Difference]: Start difference. First operand 13693 states and 19247 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 05:00:28,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:28,696 INFO L93 Difference]: Finished difference Result 14389 states and 20024 transitions. [2021-12-28 05:00:28,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:28,697 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 95 [2021-12-28 05:00:28,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:28,759 INFO L225 Difference]: With dead ends: 14389 [2021-12-28 05:00:28,759 INFO L226 Difference]: Without dead ends: 14387 [2021-12-28 05:00:28,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:28,770 INFO L933 BasicCegarLoop]: 4051 mSDtfsCounter, 3897 mSDsluCounter, 8274 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3902 SdHoareTripleChecker+Valid, 12325 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:28,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3902 Valid, 12325 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:28,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14387 states. [2021-12-28 05:00:29,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14387 to 14383. [2021-12-28 05:00:29,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14383 states, 9401 states have (on average 1.292309328794809) internal successors, (12149), 9801 states have internal predecessors, (12149), 3911 states have call successors, (3911), 1093 states have call predecessors, (3911), 1068 states have return successors, (3960), 3797 states have call predecessors, (3960), 3908 states have call successors, (3960) [2021-12-28 05:00:29,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14383 states to 14383 states and 20020 transitions. [2021-12-28 05:00:29,349 INFO L78 Accepts]: Start accepts. Automaton has 14383 states and 20020 transitions. Word has length 95 [2021-12-28 05:00:29,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:29,350 INFO L470 AbstractCegarLoop]: Abstraction has 14383 states and 20020 transitions. [2021-12-28 05:00:29,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 05:00:29,350 INFO L276 IsEmpty]: Start isEmpty. Operand 14383 states and 20020 transitions. [2021-12-28 05:00:29,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-28 05:00:29,357 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:29,357 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:29,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-28 05:00:29,357 INFO L402 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)] === [2021-12-28 05:00:29,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:29,358 INFO L85 PathProgramCache]: Analyzing trace with hash -402394414, now seen corresponding path program 1 times [2021-12-28 05:00:29,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:29,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471780506] [2021-12-28 05:00:29,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:29,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:29,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:29,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-28 05:00:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:29,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 05:00:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-28 05:00:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 05:00:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 05:00:29,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 05:00:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 05:00:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 05:00:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 05:00:29,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 05:00:29,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 05:00:29,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 05:00:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 05:00:29,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:29,639 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-12-28 05:00:29,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:29,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471780506] [2021-12-28 05:00:29,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471780506] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:29,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:29,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:29,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370160062] [2021-12-28 05:00:29,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:29,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:29,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:29,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:29,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:29,642 INFO L87 Difference]: Start difference. First operand 14383 states and 20020 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 05:00:29,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:29,986 INFO L93 Difference]: Finished difference Result 14389 states and 20025 transitions. [2021-12-28 05:00:29,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:29,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 3 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 111 [2021-12-28 05:00:29,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:30,052 INFO L225 Difference]: With dead ends: 14389 [2021-12-28 05:00:30,053 INFO L226 Difference]: Without dead ends: 14387 [2021-12-28 05:00:30,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:30,064 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3970 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3974 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:30,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3974 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:30,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14387 states. [2021-12-28 05:00:30,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14387 to 14387. [2021-12-28 05:00:30,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14387 states, 9404 states have (on average 1.2922160782645682) internal successors, (12152), 9804 states have internal predecessors, (12152), 3911 states have call successors, (3911), 1094 states have call predecessors, (3911), 1069 states have return successors, (3960), 3797 states have call predecessors, (3960), 3908 states have call successors, (3960) [2021-12-28 05:00:30,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14387 states to 14387 states and 20023 transitions. [2021-12-28 05:00:30,564 INFO L78 Accepts]: Start accepts. Automaton has 14387 states and 20023 transitions. Word has length 111 [2021-12-28 05:00:30,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:30,565 INFO L470 AbstractCegarLoop]: Abstraction has 14387 states and 20023 transitions. [2021-12-28 05:00:30,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 05:00:30,565 INFO L276 IsEmpty]: Start isEmpty. Operand 14387 states and 20023 transitions. [2021-12-28 05:00:30,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-28 05:00:30,568 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:30,568 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:30,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-28 05:00:30,569 INFO L402 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)] === [2021-12-28 05:00:30,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:30,569 INFO L85 PathProgramCache]: Analyzing trace with hash -464494577, now seen corresponding path program 1 times [2021-12-28 05:00:30,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:30,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212528573] [2021-12-28 05:00:30,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:30,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:30,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-28 05:00:30,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 05:00:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-28 05:00:30,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-28 05:00:30,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 05:00:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 05:00:30,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 05:00:30,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 05:00:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 05:00:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 05:00:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-28 05:00:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 05:00:30,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 05:00:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:30,874 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-28 05:00:30,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:30,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212528573] [2021-12-28 05:00:30,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212528573] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:30,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:30,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:30,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053589107] [2021-12-28 05:00:30,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:30,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:30,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:30,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:30,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:30,876 INFO L87 Difference]: Start difference. First operand 14387 states and 20023 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 05:00:31,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:31,267 INFO L93 Difference]: Finished difference Result 14393 states and 20028 transitions. [2021-12-28 05:00:31,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:31,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (18), 3 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 105 [2021-12-28 05:00:31,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:31,320 INFO L225 Difference]: With dead ends: 14393 [2021-12-28 05:00:31,320 INFO L226 Difference]: Without dead ends: 14391 [2021-12-28 05:00:31,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:31,330 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3978 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3981 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:31,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3981 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:31,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14391 states. [2021-12-28 05:00:31,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14391 to 14391. [2021-12-28 05:00:31,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14391 states, 9407 states have (on average 1.2921228872116508) internal successors, (12155), 9807 states have internal predecessors, (12155), 3911 states have call successors, (3911), 1095 states have call predecessors, (3911), 1070 states have return successors, (3960), 3797 states have call predecessors, (3960), 3908 states have call successors, (3960) [2021-12-28 05:00:31,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14391 states to 14391 states and 20026 transitions. [2021-12-28 05:00:31,841 INFO L78 Accepts]: Start accepts. Automaton has 14391 states and 20026 transitions. Word has length 105 [2021-12-28 05:00:31,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:31,841 INFO L470 AbstractCegarLoop]: Abstraction has 14391 states and 20026 transitions. [2021-12-28 05:00:31,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 05:00:31,841 INFO L276 IsEmpty]: Start isEmpty. Operand 14391 states and 20026 transitions. [2021-12-28 05:00:31,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-28 05:00:31,845 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:31,845 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:31,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-28 05:00:31,845 INFO L402 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)] === [2021-12-28 05:00:31,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:31,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1216027278, now seen corresponding path program 1 times [2021-12-28 05:00:31,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:31,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860163961] [2021-12-28 05:00:31,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:31,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:31,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:32,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:32,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:32,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:32,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-28 05:00:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:32,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:32,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 05:00:32,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:32,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-28 05:00:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:32,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 05:00:32,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:32,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 05:00:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:32,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 05:00:32,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:32,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 05:00:32,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:32,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 05:00:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:32,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 05:00:32,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:32,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 05:00:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:32,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 05:00:32,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:32,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 05:00:32,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:32,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 05:00:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:32,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-28 05:00:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:32,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-28 05:00:32,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:32,099 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2021-12-28 05:00:32,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:32,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860163961] [2021-12-28 05:00:32,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860163961] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:32,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:32,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:32,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411672319] [2021-12-28 05:00:32,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:32,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:32,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:32,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:32,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:32,101 INFO L87 Difference]: Start difference. First operand 14391 states and 20026 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-28 05:00:32,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:32,628 INFO L93 Difference]: Finished difference Result 14397 states and 20031 transitions. [2021-12-28 05:00:32,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:32,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (20), 3 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 121 [2021-12-28 05:00:32,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:32,681 INFO L225 Difference]: With dead ends: 14397 [2021-12-28 05:00:32,681 INFO L226 Difference]: Without dead ends: 14395 [2021-12-28 05:00:32,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:32,688 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3970 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3972 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:32,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3972 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:32,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14395 states. [2021-12-28 05:00:33,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14395 to 14395. [2021-12-28 05:00:33,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14395 states, 9410 states have (on average 1.292029755579171) internal successors, (12158), 9810 states have internal predecessors, (12158), 3911 states have call successors, (3911), 1096 states have call predecessors, (3911), 1071 states have return successors, (3960), 3797 states have call predecessors, (3960), 3908 states have call successors, (3960) [2021-12-28 05:00:33,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14395 states to 14395 states and 20029 transitions. [2021-12-28 05:00:33,292 INFO L78 Accepts]: Start accepts. Automaton has 14395 states and 20029 transitions. Word has length 121 [2021-12-28 05:00:33,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:33,293 INFO L470 AbstractCegarLoop]: Abstraction has 14395 states and 20029 transitions. [2021-12-28 05:00:33,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-28 05:00:33,293 INFO L276 IsEmpty]: Start isEmpty. Operand 14395 states and 20029 transitions. [2021-12-28 05:00:33,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-28 05:00:33,297 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:33,297 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 12, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:33,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-28 05:00:33,297 INFO L402 AbstractCegarLoop]: === Iteration 15 === 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)] === [2021-12-28 05:00:33,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:33,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1331395985, now seen corresponding path program 1 times [2021-12-28 05:00:33,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:33,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249127218] [2021-12-28 05:00:33,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:33,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:33,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:33,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:33,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:33,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-28 05:00:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:33,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:33,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:33,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 05:00:33,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:33,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-28 05:00:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:33,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-28 05:00:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:33,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 05:00:33,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:33,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 05:00:33,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:33,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 05:00:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:33,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 05:00:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:33,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 05:00:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:33,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 05:00:33,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:33,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-28 05:00:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:33,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 05:00:33,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:33,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 05:00:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:33,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-28 05:00:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:33,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 05:00:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:33,535 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2021-12-28 05:00:33,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:33,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249127218] [2021-12-28 05:00:33,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249127218] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:33,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:33,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:33,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915197251] [2021-12-28 05:00:33,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:33,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:33,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:33,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:33,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:33,537 INFO L87 Difference]: Start difference. First operand 14395 states and 20029 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-28 05:00:33,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:33,903 INFO L93 Difference]: Finished difference Result 14401 states and 20034 transitions. [2021-12-28 05:00:33,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:33,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (20), 3 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 115 [2021-12-28 05:00:33,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:33,955 INFO L225 Difference]: With dead ends: 14401 [2021-12-28 05:00:33,956 INFO L226 Difference]: Without dead ends: 14397 [2021-12-28 05:00:33,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:33,968 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3978 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3979 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:33,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3979 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:33,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14397 states. [2021-12-28 05:00:34,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14397 to 14397. [2021-12-28 05:00:34,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14397 states, 9412 states have (on average 1.2918614534636634) internal successors, (12159), 9811 states have internal predecessors, (12159), 3911 states have call successors, (3911), 1097 states have call predecessors, (3911), 1071 states have return successors, (3960), 3797 states have call predecessors, (3960), 3908 states have call successors, (3960) [2021-12-28 05:00:34,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14397 states to 14397 states and 20030 transitions. [2021-12-28 05:00:34,494 INFO L78 Accepts]: Start accepts. Automaton has 14397 states and 20030 transitions. Word has length 115 [2021-12-28 05:00:34,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:34,495 INFO L470 AbstractCegarLoop]: Abstraction has 14397 states and 20030 transitions. [2021-12-28 05:00:34,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-28 05:00:34,495 INFO L276 IsEmpty]: Start isEmpty. Operand 14397 states and 20030 transitions. [2021-12-28 05:00:34,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-28 05:00:34,500 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:34,500 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:34,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-28 05:00:34,501 INFO L402 AbstractCegarLoop]: === Iteration 16 === 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)] === [2021-12-28 05:00:34,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:34,501 INFO L85 PathProgramCache]: Analyzing trace with hash 490491264, now seen corresponding path program 1 times [2021-12-28 05:00:34,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:34,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884390774] [2021-12-28 05:00:34,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:34,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:34,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:34,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:34,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:34,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-28 05:00:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:34,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:34,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 05:00:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:34,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-28 05:00:34,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:34,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-28 05:00:34,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:34,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 05:00:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:34,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 05:00:34,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:34,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 05:00:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:34,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 05:00:34,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:34,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 05:00:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:34,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 05:00:34,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:34,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-28 05:00:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:34,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 05:00:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:34,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 05:00:34,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:34,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-28 05:00:34,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:34,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 05:00:34,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:34,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-28 05:00:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:34,818 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2021-12-28 05:00:34,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:34,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884390774] [2021-12-28 05:00:34,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884390774] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:34,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:34,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:00:34,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070032638] [2021-12-28 05:00:34,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:34,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:00:34,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:34,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:00:34,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:00:34,822 INFO L87 Difference]: Start difference. First operand 14397 states and 20030 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-28 05:00:35,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:35,255 INFO L93 Difference]: Finished difference Result 16572 states and 22702 transitions. [2021-12-28 05:00:35,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:00:35,255 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (21), 3 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 120 [2021-12-28 05:00:35,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:35,313 INFO L225 Difference]: With dead ends: 16572 [2021-12-28 05:00:35,313 INFO L226 Difference]: Without dead ends: 16468 [2021-12-28 05:00:35,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:35,324 INFO L933 BasicCegarLoop]: 4141 mSDtfsCounter, 3659 mSDsluCounter, 9153 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3659 SdHoareTripleChecker+Valid, 13294 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:35,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3659 Valid, 13294 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 05:00:35,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16468 states. [2021-12-28 05:00:35,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16468 to 12522. [2021-12-28 05:00:35,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12522 states, 8234 states have (on average 1.2815156667476317) internal successors, (10552), 8551 states have internal predecessors, (10552), 3266 states have call successors, (3266), 1050 states have call predecessors, (3266), 1020 states have return successors, (3371), 3165 states have call predecessors, (3371), 3263 states have call successors, (3371) [2021-12-28 05:00:35,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12522 states to 12522 states and 17189 transitions. [2021-12-28 05:00:35,843 INFO L78 Accepts]: Start accepts. Automaton has 12522 states and 17189 transitions. Word has length 120 [2021-12-28 05:00:35,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:35,844 INFO L470 AbstractCegarLoop]: Abstraction has 12522 states and 17189 transitions. [2021-12-28 05:00:35,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-28 05:00:35,844 INFO L276 IsEmpty]: Start isEmpty. Operand 12522 states and 17189 transitions. [2021-12-28 05:00:35,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-12-28 05:00:35,849 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:35,849 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:35,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-28 05:00:35,849 INFO L402 AbstractCegarLoop]: === Iteration 17 === 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)] === [2021-12-28 05:00:35,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:35,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1219142567, now seen corresponding path program 1 times [2021-12-28 05:00:35,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:35,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592344149] [2021-12-28 05:00:35,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:35,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:36,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:36,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:36,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-28 05:00:36,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:36,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:36,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:36,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 05:00:36,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:36,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-28 05:00:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:36,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 05:00:36,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:36,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 05:00:36,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:36,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:36,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:36,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:00:36,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:36,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:00:36,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:36,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 05:00:36,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:36,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 05:00:36,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:36,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:36,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:00:36,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:36,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:00:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:36,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 05:00:36,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:36,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-28 05:00:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:36,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-28 05:00:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:36,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:36,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:36,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-28 05:00:36,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:36,316 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-12-28 05:00:36,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:36,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592344149] [2021-12-28 05:00:36,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592344149] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:36,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:36,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 05:00:36,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219649084] [2021-12-28 05:00:36,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:36,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 05:00:36,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:36,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 05:00:36,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 05:00:36,319 INFO L87 Difference]: Start difference. First operand 12522 states and 17189 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-28 05:00:40,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:40,826 INFO L93 Difference]: Finished difference Result 12831 states and 17677 transitions. [2021-12-28 05:00:40,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 05:00:40,827 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 155 [2021-12-28 05:00:40,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:40,864 INFO L225 Difference]: With dead ends: 12831 [2021-12-28 05:00:40,865 INFO L226 Difference]: Without dead ends: 12829 [2021-12-28 05:00:40,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-28 05:00:40,871 INFO L933 BasicCegarLoop]: 3828 mSDtfsCounter, 3748 mSDsluCounter, 7532 mSDsCounter, 0 mSdLazyCounter, 4301 mSolverCounterSat, 1498 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4123 SdHoareTripleChecker+Valid, 11360 SdHoareTripleChecker+Invalid, 5799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1498 IncrementalHoareTripleChecker+Valid, 4301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:40,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4123 Valid, 11360 Invalid, 5799 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1498 Valid, 4301 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-12-28 05:00:40,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12829 states. [2021-12-28 05:00:41,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12829 to 12621. [2021-12-28 05:00:41,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12621 states, 8294 states have (on average 1.279479141548107) internal successors, (10612), 8617 states have internal predecessors, (10612), 3278 states have call successors, (3278), 1056 states have call predecessors, (3278), 1047 states have return successors, (3416), 3186 states have call predecessors, (3416), 3275 states have call successors, (3416) [2021-12-28 05:00:41,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12621 states to 12621 states and 17306 transitions. [2021-12-28 05:00:41,376 INFO L78 Accepts]: Start accepts. Automaton has 12621 states and 17306 transitions. Word has length 155 [2021-12-28 05:00:41,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:41,377 INFO L470 AbstractCegarLoop]: Abstraction has 12621 states and 17306 transitions. [2021-12-28 05:00:41,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-28 05:00:41,377 INFO L276 IsEmpty]: Start isEmpty. Operand 12621 states and 17306 transitions. [2021-12-28 05:00:41,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-12-28 05:00:41,385 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:41,385 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:41,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-28 05:00:41,386 INFO L402 AbstractCegarLoop]: === Iteration 18 === 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)] === [2021-12-28 05:00:41,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:41,386 INFO L85 PathProgramCache]: Analyzing trace with hash 630897392, now seen corresponding path program 1 times [2021-12-28 05:00:41,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:41,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553829247] [2021-12-28 05:00:41,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:41,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:41,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:41,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 05:00:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:00:41,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:00:41,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 05:00:41,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:41,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:00:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:00:41,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 05:00:41,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:00:41,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:00:41,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 05:00:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-28 05:00:41,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 05:00:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 05:00:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:41,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-28 05:00:41,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-28 05:00:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 05:00:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-28 05:00:41,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-28 05:00:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-28 05:00:41,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-28 05:00:41,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-28 05:00:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:41,866 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2021-12-28 05:00:41,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:41,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553829247] [2021-12-28 05:00:41,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553829247] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:41,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:41,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 05:00:41,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472213143] [2021-12-28 05:00:41,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:41,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 05:00:41,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:41,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 05:00:41,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 05:00:41,868 INFO L87 Difference]: Start difference. First operand 12621 states and 17306 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-28 05:00:48,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:00:48,026 INFO L93 Difference]: Finished difference Result 12843 states and 17677 transitions. [2021-12-28 05:00:48,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 05:00:48,027 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 192 [2021-12-28 05:00:48,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:00:48,071 INFO L225 Difference]: With dead ends: 12843 [2021-12-28 05:00:48,071 INFO L226 Difference]: Without dead ends: 12841 [2021-12-28 05:00:48,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-28 05:00:48,080 INFO L933 BasicCegarLoop]: 4563 mSDtfsCounter, 3803 mSDsluCounter, 9432 mSDsCounter, 0 mSdLazyCounter, 5811 mSolverCounterSat, 1548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4328 SdHoareTripleChecker+Valid, 13995 SdHoareTripleChecker+Invalid, 7359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1548 IncrementalHoareTripleChecker+Valid, 5811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-12-28 05:00:48,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4328 Valid, 13995 Invalid, 7359 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1548 Valid, 5811 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2021-12-28 05:00:48,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12841 states. [2021-12-28 05:00:48,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12841 to 12633. [2021-12-28 05:00:48,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12633 states, 8303 states have (on average 1.2791762013729977) internal successors, (10621), 8626 states have internal predecessors, (10621), 3278 states have call successors, (3278), 1059 states have call predecessors, (3278), 1050 states have return successors, (3416), 3186 states have call predecessors, (3416), 3275 states have call successors, (3416) [2021-12-28 05:00:48,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12633 states to 12633 states and 17315 transitions. [2021-12-28 05:00:48,649 INFO L78 Accepts]: Start accepts. Automaton has 12633 states and 17315 transitions. Word has length 192 [2021-12-28 05:00:48,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:00:48,652 INFO L470 AbstractCegarLoop]: Abstraction has 12633 states and 17315 transitions. [2021-12-28 05:00:48,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-28 05:00:48,652 INFO L276 IsEmpty]: Start isEmpty. Operand 12633 states and 17315 transitions. [2021-12-28 05:00:48,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-12-28 05:00:48,660 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:00:48,660 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:00:48,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-28 05:00:48,661 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_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)] === [2021-12-28 05:00:48,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:00:48,661 INFO L85 PathProgramCache]: Analyzing trace with hash -827996290, now seen corresponding path program 1 times [2021-12-28 05:00:48,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:00:48,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929333201] [2021-12-28 05:00:48,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:00:48,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:00:48,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:00:48,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:00:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-28 05:00:48,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:48,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 05:00:48,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-28 05:00:48,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 05:00:48,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 05:00:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:48,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:00:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:00:48,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 05:00:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 05:00:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:00:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:00:48,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 05:00:48,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-28 05:00:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-28 05:00:48,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:00:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-28 05:00:48,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-28 05:00:48,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-28 05:00:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-28 05:00:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-28 05:00:48,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-28 05:00:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-28 05:00:48,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:00:48,988 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-12-28 05:00:48,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:00:48,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929333201] [2021-12-28 05:00:48,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929333201] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:00:48,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:00:48,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 05:00:48,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739701034] [2021-12-28 05:00:48,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:00:48,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 05:00:48,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:00:48,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 05:00:48,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:00:48,992 INFO L87 Difference]: Start difference. First operand 12633 states and 17315 transitions. Second operand has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-28 05:00:50,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []