./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-marvell-sky2.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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-marvell-sky2.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 91f73b42c8fe3db55fbb7a7497120df3b9b2fa6084f78fe538d2c182c8caed17 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 03:34:32,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 03:34:32,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 03:34:32,641 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 03:34:32,642 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 03:34:32,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 03:34:32,646 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 03:34:32,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 03:34:32,652 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 03:34:32,655 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 03:34:32,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 03:34:32,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 03:34:32,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 03:34:32,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 03:34:32,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 03:34:32,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 03:34:32,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 03:34:32,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 03:34:32,666 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 03:34:32,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 03:34:32,672 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 03:34:32,673 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 03:34:32,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 03:34:32,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 03:34:32,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 03:34:32,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 03:34:32,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 03:34:32,681 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 03:34:32,682 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 03:34:32,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 03:34:32,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 03:34:32,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 03:34:32,684 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 03:34:32,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 03:34:32,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 03:34:32,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 03:34:32,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 03:34:32,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 03:34:32,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 03:34:32,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 03:34:32,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 03:34:32,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 03:34:32,690 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 03:34:32,717 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 03:34:32,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 03:34:32,718 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 03:34:32,718 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 03:34:32,718 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 03:34:32,718 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 03:34:32,719 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 03:34:32,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 03:34:32,719 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 03:34:32,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 03:34:32,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 03:34:32,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 03:34:32,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 03:34:32,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 03:34:32,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 03:34:32,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 03:34:32,721 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 03:34:32,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 03:34:32,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 03:34:32,721 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 03:34:32,721 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 03:34:32,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 03:34:32,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 03:34:32,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 03:34:32,722 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 03:34:32,722 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 03:34:32,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 03:34:32,722 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 03:34:32,723 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 03:34:32,723 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 03:34:32,723 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91f73b42c8fe3db55fbb7a7497120df3b9b2fa6084f78fe538d2c182c8caed17 [2022-07-14 03:34:32,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 03:34:32,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 03:34:32,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 03:34:32,932 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 03:34:32,932 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 03:34:32,933 INFO L432 ainManager$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-marvell-sky2.cil.i [2022-07-14 03:34:33,000 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4b315326/5f54a0e95f8142a89da4283e8b14128d/FLAGe17960016 [2022-07-14 03:34:33,749 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 03:34:33,750 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-marvell-sky2.cil.i [2022-07-14 03:34:33,812 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4b315326/5f54a0e95f8142a89da4283e8b14128d/FLAGe17960016 [2022-07-14 03:34:34,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4b315326/5f54a0e95f8142a89da4283e8b14128d [2022-07-14 03:34:34,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 03:34:34,274 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 03:34:34,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 03:34:34,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 03:34:34,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 03:34:34,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:34:34" (1/1) ... [2022-07-14 03:34:34,280 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52995d46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:34:34, skipping insertion in model container [2022-07-14 03:34:34,280 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:34:34" (1/1) ... [2022-07-14 03:34:34,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 03:34:34,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 03:34:39,752 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-marvell-sky2.cil.i[583669,583682] [2022-07-14 03:34:39,755 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-marvell-sky2.cil.i[583838,583851] [2022-07-14 03:34:39,756 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-marvell-sky2.cil.i[584005,584018] [2022-07-14 03:34:39,756 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-marvell-sky2.cil.i[584173,584186] [2022-07-14 03:34:39,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 03:34:39,863 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 03:34:40,405 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-marvell-sky2.cil.i[583669,583682] [2022-07-14 03:34:40,407 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-marvell-sky2.cil.i[583838,583851] [2022-07-14 03:34:40,407 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-marvell-sky2.cil.i[584005,584018] [2022-07-14 03:34:40,407 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-marvell-sky2.cil.i[584173,584186] [2022-07-14 03:34:40,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 03:34:40,738 INFO L208 MainTranslator]: Completed translation [2022-07-14 03:34:40,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:34:40 WrapperNode [2022-07-14 03:34:40,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 03:34:40,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 03:34:40,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 03:34:40,740 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 03:34:40,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:34:40" (1/1) ... [2022-07-14 03:34:40,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:34:40" (1/1) ... [2022-07-14 03:34:41,208 INFO L137 Inliner]: procedures = 798, calls = 5637, calls flagged for inlining = 404, calls inlined = 343, statements flattened = 11393 [2022-07-14 03:34:41,209 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 03:34:41,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 03:34:41,210 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 03:34:41,210 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 03:34:41,217 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:34:40" (1/1) ... [2022-07-14 03:34:41,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:34:40" (1/1) ... [2022-07-14 03:34:41,263 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:34:40" (1/1) ... [2022-07-14 03:34:41,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:34:40" (1/1) ... [2022-07-14 03:34:41,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:34:40" (1/1) ... [2022-07-14 03:34:41,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:34:40" (1/1) ... [2022-07-14 03:34:41,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:34:40" (1/1) ... [2022-07-14 03:34:41,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 03:34:41,754 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 03:34:41,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 03:34:41,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 03:34:41,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:34:40" (1/1) ... [2022-07-14 03:34:41,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 03:34:41,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 03:34:41,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 03:34:41,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 03:34:41,846 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-14 03:34:41,846 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-14 03:34:41,846 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_remove [2022-07-14 03:34:41,846 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_remove [2022-07-14 03:34:41,846 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_led [2022-07-14 03:34:41,846 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_led [2022-07-14 03:34:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_alloc_rx_skbs [2022-07-14 03:34:41,847 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_alloc_rx_skbs [2022-07-14 03:34:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-14 03:34:41,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-14 03:34:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure rx_set_rss [2022-07-14 03:34:41,847 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_set_rss [2022-07-14 03:34:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_power_aux [2022-07-14 03:34:41,847 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_power_aux [2022-07-14 03:34:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-14 03:34:41,848 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-14 03:34:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-07-14 03:34:41,848 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-07-14 03:34:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-14 03:34:41,848 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-14 03:34:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_add_filter [2022-07-14 03:34:41,848 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_add_filter [2022-07-14 03:34:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-14 03:34:41,848 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-14 03:34:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2022-07-14 03:34:41,849 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2022-07-14 03:34:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2022-07-14 03:34:41,849 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2022-07-14 03:34:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-14 03:34:41,849 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-14 03:34:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-14 03:34:41,850 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-14 03:34:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_init_netdev [2022-07-14 03:34:41,850 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_init_netdev [2022-07-14 03:34:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-14 03:34:41,850 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-14 03:34:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-14 03:34:41,850 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-14 03:34:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure netif_schedule_queue [2022-07-14 03:34:41,850 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_schedule_queue [2022-07-14 03:34:41,851 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_regs_len [2022-07-14 03:34:41,851 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_regs_len [2022-07-14 03:34:41,851 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-14 03:34:41,851 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-14 03:34:41,851 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_update [2022-07-14 03:34:41,851 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_update [2022-07-14 03:34:41,851 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-14 03:34:41,851 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-14 03:34:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-14 03:34:41,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-14 03:34:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_ramset [2022-07-14 03:34:41,853 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_ramset [2022-07-14 03:34:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 03:34:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_update_features [2022-07-14 03:34:41,853 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_update_features [2022-07-14 03:34:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_netpoll [2022-07-14 03:34:41,854 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_netpoll [2022-07-14 03:34:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-07-14 03:34:41,854 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-07-14 03:34:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-14 03:34:41,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-14 03:34:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-07-14 03:34:41,854 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-07-14 03:34:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-14 03:34:41,855 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-14 03:34:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-14 03:34:41,855 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-14 03:34:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-14 03:34:41,855 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-14 03:34:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_lock [2022-07-14 03:34:41,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_lock [2022-07-14 03:34:41,856 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-07-14 03:34:41,856 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-07-14 03:34:41,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-14 03:34:41,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-14 03:34:41,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 03:34:41,856 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_add [2022-07-14 03:34:41,856 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_add [2022-07-14 03:34:41,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2022-07-14 03:34:41,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2022-07-14 03:34:41,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 03:34:41,857 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_map_skb [2022-07-14 03:34:41,857 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_map_skb [2022-07-14 03:34:41,857 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_resume [2022-07-14 03:34:41,858 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_resume [2022-07-14 03:34:41,858 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_ring_size [2022-07-14 03:34:41,858 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_ring_size [2022-07-14 03:34:41,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-14 03:34:41,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-14 03:34:41,858 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-14 03:34:41,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-14 03:34:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 03:34:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-14 03:34:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read32 [2022-07-14 03:34:41,859 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read32 [2022-07-14 03:34:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2022-07-14 03:34:41,859 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2022-07-14 03:34:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_clean [2022-07-14 03:34:41,860 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_clean [2022-07-14 03:34:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-07-14 03:34:41,860 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-07-14 03:34:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-14 03:34:41,860 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-14 03:34:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_down [2022-07-14 03:34:41,860 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_down [2022-07-14 03:34:41,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-14 03:34:41,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-14 03:34:41,861 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_reinit [2022-07-14 03:34:41,861 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_reinit [2022-07-14 03:34:41,861 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-14 03:34:41,861 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-14 03:34:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read16 [2022-07-14 03:34:41,862 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read16 [2022-07-14 03:34:41,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 03:34:41,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 03:34:41,865 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write16 [2022-07-14 03:34:41,865 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write16 [2022-07-14 03:34:41,865 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-14 03:34:41,866 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-14 03:34:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_free_buffers [2022-07-14 03:34:41,866 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_free_buffers [2022-07-14 03:34:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-14 03:34:41,869 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-14 03:34:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 03:34:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-14 03:34:41,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-14 03:34:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-07-14 03:34:41,870 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-07-14 03:34:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2022-07-14 03:34:41,871 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2022-07-14 03:34:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-14 03:34:41,871 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-14 03:34:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read32 [2022-07-14 03:34:41,871 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read32 [2022-07-14 03:34:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-14 03:34:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_multicast [2022-07-14 03:34:41,871 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_multicast [2022-07-14 03:34:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-14 03:34:41,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-14 03:34:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_prefetch_init [2022-07-14 03:34:41,872 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_prefetch_init [2022-07-14 03:34:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_reset [2022-07-14 03:34:41,872 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_reset [2022-07-14 03:34:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-14 03:34:41,872 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-14 03:34:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-07-14 03:34:41,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-07-14 03:34:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-07-14 03:34:41,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-07-14 03:34:41,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2022-07-14 03:34:41,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2022-07-14 03:34:41,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 03:34:41,873 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 03:34:41,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-07-14 03:34:41,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-07-14 03:34:41,873 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-14 03:34:41,873 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-14 03:34:41,873 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vpd_wait [2022-07-14 03:34:41,874 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vpd_wait [2022-07-14 03:34:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-07-14 03:34:41,874 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-07-14 03:34:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_shutdown [2022-07-14 03:34:41,874 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_shutdown [2022-07-14 03:34:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read16 [2022-07-14 03:34:41,874 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read16 [2022-07-14 03:34:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_le [2022-07-14 03:34:41,874 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_le [2022-07-14 03:34:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_stop [2022-07-14 03:34:41,875 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_stop [2022-07-14 03:34:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 03:34:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-14 03:34:41,875 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-14 03:34:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 03:34:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_down [2022-07-14 03:34:41,875 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_down [2022-07-14 03:34:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-14 03:34:41,875 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-14 03:34:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure __gm_phy_read [2022-07-14 03:34:41,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __gm_phy_read [2022-07-14 03:34:41,876 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-14 03:34:41,876 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-14 03:34:41,876 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2022-07-14 03:34:41,876 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2022-07-14 03:34:41,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-14 03:34:41,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-14 03:34:41,876 INFO L130 BoogieDeclarations]: Found specification of procedure gma_write16 [2022-07-14 03:34:41,877 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_write16 [2022-07-14 03:34:41,877 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-14 03:34:41,878 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-14 03:34:41,878 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_next_rx [2022-07-14 03:34:41,878 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_next_rx [2022-07-14 03:34:41,878 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-14 03:34:41,878 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-14 03:34:41,878 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2022-07-14 03:34:41,878 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2022-07-14 03:34:41,878 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_eeprom_len [2022-07-14 03:34:41,878 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_eeprom_len [2022-07-14 03:34:41,879 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-14 03:34:41,879 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-14 03:34:41,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_79 [2022-07-14 03:34:41,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_79 [2022-07-14 03:34:41,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 03:34:41,879 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_us2clk [2022-07-14 03:34:41,879 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_us2clk [2022-07-14 03:34:41,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 03:34:41,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 03:34:41,879 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2022-07-14 03:34:41,880 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2022-07-14 03:34:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-07-14 03:34:41,880 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-07-14 03:34:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2022-07-14 03:34:41,880 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2022-07-14 03:34:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-07-14 03:34:41,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-07-14 03:34:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-14 03:34:41,880 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-14 03:34:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_qset [2022-07-14 03:34:41,881 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_qset [2022-07-14 03:34:41,881 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_mhz [2022-07-14 03:34:41,881 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_mhz [2022-07-14 03:34:41,881 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-14 03:34:41,881 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-14 03:34:41,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 03:34:41,881 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 03:34:41,881 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-07-14 03:34:41,881 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-07-14 03:34:41,881 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats32 [2022-07-14 03:34:41,882 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats32 [2022-07-14 03:34:41,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 03:34:41,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 03:34:41,882 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-14 03:34:41,882 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-14 03:34:41,882 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_supported_modes [2022-07-14 03:34:41,882 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_supported_modes [2022-07-14 03:34:41,882 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_read [2022-07-14 03:34:41,882 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_read [2022-07-14 03:34:41,882 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_alloc [2022-07-14 03:34:41,882 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_alloc [2022-07-14 03:34:41,883 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2022-07-14 03:34:41,883 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2022-07-14 03:34:41,885 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_unlock [2022-07-14 03:34:41,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_unlock [2022-07-14 03:34:41,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-14 03:34:41,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-14 03:34:41,886 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_show_addr [2022-07-14 03:34:41,886 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_show_addr [2022-07-14 03:34:41,886 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-14 03:34:41,886 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-14 03:34:41,886 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_close [2022-07-14 03:34:41,887 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_close [2022-07-14 03:34:41,887 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-14 03:34:41,887 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-14 03:34:41,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-14 03:34:41,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-14 03:34:41,887 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_start [2022-07-14 03:34:41,888 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_start [2022-07-14 03:34:41,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 03:34:41,888 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-07-14 03:34:41,888 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-07-14 03:34:41,888 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats64 [2022-07-14 03:34:41,888 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats64 [2022-07-14 03:34:41,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-07-14 03:34:41,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-07-14 03:34:41,888 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-07-14 03:34:41,888 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-07-14 03:34:41,888 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-14 03:34:41,889 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-14 03:34:41,889 INFO L130 BoogieDeclarations]: Found specification of procedure pci_is_pcie [2022-07-14 03:34:41,889 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_is_pcie [2022-07-14 03:34:41,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-14 03:34:41,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-07-14 03:34:41,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-07-14 03:34:41,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-14 03:34:41,889 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-14 03:34:41,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-14 03:34:41,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_80 [2022-07-14 03:34:41,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_80 [2022-07-14 03:34:41,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 03:34:41,890 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 03:34:41,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-14 03:34:41,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-14 03:34:41,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-14 03:34:41,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-14 03:34:41,890 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_up [2022-07-14 03:34:41,890 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_up [2022-07-14 03:34:41,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_1 [2022-07-14 03:34:41,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_1 [2022-07-14 03:34:41,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_2 [2022-07-14 03:34:41,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_2 [2022-07-14 03:34:41,891 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-07-14 03:34:41,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-07-14 03:34:41,891 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_unmap [2022-07-14 03:34:41,891 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_unmap [2022-07-14 03:34:41,891 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_put_idx [2022-07-14 03:34:41,891 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_put_idx [2022-07-14 03:34:41,891 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 03:34:41,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 03:34:41,891 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_dma_map [2022-07-14 03:34:41,891 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_dma_map [2022-07-14 03:34:41,892 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-14 03:34:41,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-14 03:34:41,892 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_power_up [2022-07-14 03:34:41,892 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_power_up [2022-07-14 03:34:41,892 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_init [2022-07-14 03:34:41,892 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_init [2022-07-14 03:34:41,892 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-14 03:34:41,892 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-14 03:34:41,892 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_complete [2022-07-14 03:34:41,892 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_complete [2022-07-14 03:34:41,893 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2022-07-14 03:34:41,893 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2022-07-14 03:34:41,893 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-07-14 03:34:41,893 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-07-14 03:34:41,893 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read16 [2022-07-14 03:34:41,893 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read16 [2022-07-14 03:34:41,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 03:34:41,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 03:34:41,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 03:34:41,893 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_up [2022-07-14 03:34:41,893 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_up [2022-07-14 03:34:41,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-14 03:34:41,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-14 03:34:41,894 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_timeout [2022-07-14 03:34:41,894 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_timeout [2022-07-14 03:34:41,894 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-07-14 03:34:41,894 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-07-14 03:34:41,894 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_wol_supported [2022-07-14 03:34:41,894 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_wol_supported [2022-07-14 03:34:41,894 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write32 [2022-07-14 03:34:41,894 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write32 [2022-07-14 03:34:41,894 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-07-14 03:34:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-07-14 03:34:41,895 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_submit [2022-07-14 03:34:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_submit [2022-07-14 03:34:41,895 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-07-14 03:34:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-07-14 03:34:41,895 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-14 03:34:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-14 03:34:41,895 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vlan_mode [2022-07-14 03:34:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vlan_mode [2022-07-14 03:34:41,895 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read8 [2022-07-14 03:34:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read8 [2022-07-14 03:34:41,896 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2022-07-14 03:34:41,896 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2022-07-14 03:34:41,896 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read32 [2022-07-14 03:34:41,896 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read32 [2022-07-14 03:34:41,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_phy_lock_of_sky2_port [2022-07-14 03:34:41,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_phy_lock_of_sky2_port [2022-07-14 03:34:41,896 INFO L130 BoogieDeclarations]: Found specification of procedure gma_set_addr [2022-07-14 03:34:41,896 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_set_addr [2022-07-14 03:34:41,896 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-07-14 03:34:41,896 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-07-14 03:34:41,896 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-07-14 03:34:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-07-14 03:34:41,897 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-14 03:34:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-14 03:34:41,897 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-14 03:34:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-14 03:34:41,897 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-14 03:34:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-14 03:34:41,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 03:34:41,897 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_nway_reset [2022-07-14 03:34:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_nway_reset [2022-07-14 03:34:41,897 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-14 03:34:41,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-14 03:34:41,898 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-14 03:34:41,898 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-14 03:34:41,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-07-14 03:34:41,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-07-14 03:34:41,898 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-14 03:34:41,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-14 03:34:41,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-07-14 03:34:41,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-07-14 03:34:41,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-14 03:34:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-14 03:34:41,899 INFO L130 BoogieDeclarations]: Found specification of procedure tx_avail [2022-07-14 03:34:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_avail [2022-07-14 03:34:41,899 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_unmap_skb [2022-07-14 03:34:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_unmap_skb [2022-07-14 03:34:41,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-07-14 03:34:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-07-14 03:34:41,899 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_clk2us [2022-07-14 03:34:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_clk2us [2022-07-14 03:34:41,899 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_tx_stfwd [2022-07-14 03:34:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_tx_stfwd [2022-07-14 03:34:41,900 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_enable_rx_tx [2022-07-14 03:34:41,900 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_enable_rx_tx [2022-07-14 03:34:41,900 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-14 03:34:41,900 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-14 03:34:41,900 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-07-14 03:34:41,900 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-07-14 03:34:41,900 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-14 03:34:41,900 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-14 03:34:41,900 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_setup_irq [2022-07-14 03:34:41,900 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_setup_irq [2022-07-14 03:34:41,900 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 03:34:41,901 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 03:34:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-07-14 03:34:41,901 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-07-14 03:34:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-07-14 03:34:41,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-07-14 03:34:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_is_copper [2022-07-14 03:34:41,901 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_is_copper [2022-07-14 03:34:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-14 03:34:41,901 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-14 03:34:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_suspend [2022-07-14 03:34:41,901 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_suspend [2022-07-14 03:34:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-07-14 03:34:41,902 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-07-14 03:34:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write16 [2022-07-14 03:34:41,902 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write16 [2022-07-14 03:34:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-14 03:34:41,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-14 03:34:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-14 03:34:41,902 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-14 03:34:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write8 [2022-07-14 03:34:41,902 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write8 [2022-07-14 03:34:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_write [2022-07-14 03:34:41,903 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_write [2022-07-14 03:34:41,903 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-07-14 03:34:41,903 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-07-14 03:34:41,903 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-14 03:34:41,903 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-14 03:34:41,903 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write32 [2022-07-14 03:34:41,903 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write32 [2022-07-14 03:34:41,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 03:34:41,903 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read64 [2022-07-14 03:34:41,903 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read64 [2022-07-14 03:34:41,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-14 03:34:41,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-14 03:34:41,904 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-07-14 03:34:41,904 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-07-14 03:34:41,904 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_open [2022-07-14 03:34:41,904 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_open [2022-07-14 03:34:41,904 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-07-14 03:34:43,580 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 03:34:43,583 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 03:34:43,661 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 03:35:05,754 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 03:35:05,789 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 03:35:05,789 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2022-07-14 03:35:05,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:35:05 BoogieIcfgContainer [2022-07-14 03:35:05,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 03:35:05,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 03:35:05,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 03:35:05,799 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 03:35:05,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 03:34:34" (1/3) ... [2022-07-14 03:35:05,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a97edcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 03:35:05, skipping insertion in model container [2022-07-14 03:35:05,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:34:40" (2/3) ... [2022-07-14 03:35:05,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a97edcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 03:35:05, skipping insertion in model container [2022-07-14 03:35:05,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:35:05" (3/3) ... [2022-07-14 03:35:05,801 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2022-07-14 03:35:05,811 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 03:35:05,811 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-14 03:35:05,906 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 03:35:05,911 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@55e8792d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@30bce78e [2022-07-14 03:35:05,911 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-14 03:35:05,928 INFO L276 IsEmpty]: Start isEmpty. Operand has 4042 states, 2678 states have (on average 1.3121732636295742) internal successors, (3514), 2784 states have internal predecessors, (3514), 1154 states have call successors, (1154), 208 states have call predecessors, (1154), 207 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-14 03:35:05,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-14 03:35:05,938 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:35:05,938 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-14 03:35:05,939 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:35:05,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:35:05,942 INFO L85 PathProgramCache]: Analyzing trace with hash 2044215754, now seen corresponding path program 1 times [2022-07-14 03:35:05,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:35:05,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824027296] [2022-07-14 03:35:05,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:35:05,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:35:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:07,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:35:07,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:07,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:35:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:07,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 03:35:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:07,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 03:35:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:07,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 03:35:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:07,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:35:07,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:07,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 03:35:07,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:07,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 03:35:07,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:07,122 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-14 03:35:07,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:35:07,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824027296] [2022-07-14 03:35:07,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824027296] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:35:07,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:35:07,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 03:35:07,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450224179] [2022-07-14 03:35:07,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:35:07,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 03:35:07,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:35:07,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 03:35:07,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 03:35:07,169 INFO L87 Difference]: Start difference. First operand has 4042 states, 2678 states have (on average 1.3121732636295742) internal successors, (3514), 2784 states have internal predecessors, (3514), 1154 states have call successors, (1154), 208 states have call predecessors, (1154), 207 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 03:35:17,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:35:17,958 INFO L93 Difference]: Finished difference Result 8310 states and 12198 transitions. [2022-07-14 03:35:17,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 03:35:17,960 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (10), 4 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 62 [2022-07-14 03:35:17,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:35:18,004 INFO L225 Difference]: With dead ends: 8310 [2022-07-14 03:35:18,005 INFO L226 Difference]: Without dead ends: 4339 [2022-07-14 03:35:18,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:35:18,038 INFO L413 NwaCegarLoop]: 5184 mSDtfsCounter, 5904 mSDsluCounter, 8409 mSDsCounter, 0 mSdLazyCounter, 6565 mSolverCounterSat, 2914 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6492 SdHoareTripleChecker+Valid, 13593 SdHoareTripleChecker+Invalid, 9479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2914 IncrementalHoareTripleChecker+Valid, 6565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-07-14 03:35:18,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6492 Valid, 13593 Invalid, 9479 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2914 Valid, 6565 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2022-07-14 03:35:18,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4339 states. [2022-07-14 03:35:18,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4339 to 4012. [2022-07-14 03:35:18,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4012 states, 2646 states have (on average 1.2622826908541194) internal successors, (3340), 2749 states have internal predecessors, (3340), 1149 states have call successors, (1149), 215 states have call predecessors, (1149), 214 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-14 03:35:18,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4012 states to 4012 states and 5635 transitions. [2022-07-14 03:35:18,287 INFO L78 Accepts]: Start accepts. Automaton has 4012 states and 5635 transitions. Word has length 62 [2022-07-14 03:35:18,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:35:18,288 INFO L495 AbstractCegarLoop]: Abstraction has 4012 states and 5635 transitions. [2022-07-14 03:35:18,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 03:35:18,288 INFO L276 IsEmpty]: Start isEmpty. Operand 4012 states and 5635 transitions. [2022-07-14 03:35:18,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-14 03:35:18,296 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:35:18,296 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-07-14 03:35:18,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 03:35:18,297 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:35:18,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:35:18,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1199263874, now seen corresponding path program 1 times [2022-07-14 03:35:18,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:35:18,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383881982] [2022-07-14 03:35:18,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:35:18,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:35:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:18,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:35:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:18,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:35:18,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:18,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 03:35:18,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:18,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 03:35:18,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:18,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 03:35:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:18,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:35:18,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:18,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 03:35:18,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:18,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 03:35:18,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:18,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:35:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:18,736 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-14 03:35:18,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:35:18,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383881982] [2022-07-14 03:35:18,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383881982] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:35:18,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:35:18,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 03:35:18,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507738700] [2022-07-14 03:35:18,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:35:18,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 03:35:18,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:35:18,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 03:35:18,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 03:35:18,742 INFO L87 Difference]: Start difference. First operand 4012 states and 5635 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 03:35:30,054 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:35:32,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:35:33,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:35:33,088 INFO L93 Difference]: Finished difference Result 4343 states and 6178 transitions. [2022-07-14 03:35:33,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 03:35:33,089 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 4 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 67 [2022-07-14 03:35:33,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:35:33,247 INFO L225 Difference]: With dead ends: 4343 [2022-07-14 03:35:33,247 INFO L226 Difference]: Without dead ends: 4341 [2022-07-14 03:35:33,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:35:33,277 INFO L413 NwaCegarLoop]: 5150 mSDtfsCounter, 5866 mSDsluCounter, 8381 mSDsCounter, 0 mSdLazyCounter, 6440 mSolverCounterSat, 2885 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6475 SdHoareTripleChecker+Valid, 13531 SdHoareTripleChecker+Invalid, 9327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2885 IncrementalHoareTripleChecker+Valid, 6440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2022-07-14 03:35:33,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6475 Valid, 13531 Invalid, 9327 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2885 Valid, 6440 Invalid, 2 Unknown, 0 Unchecked, 13.9s Time] [2022-07-14 03:35:33,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4341 states. [2022-07-14 03:35:33,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4341 to 4016. [2022-07-14 03:35:33,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4016 states, 2649 states have (on average 1.2619856549641375) internal successors, (3343), 2752 states have internal predecessors, (3343), 1149 states have call successors, (1149), 216 states have call predecessors, (1149), 215 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-14 03:35:33,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4016 states to 4016 states and 5638 transitions. [2022-07-14 03:35:33,432 INFO L78 Accepts]: Start accepts. Automaton has 4016 states and 5638 transitions. Word has length 67 [2022-07-14 03:35:33,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:35:33,433 INFO L495 AbstractCegarLoop]: Abstraction has 4016 states and 5638 transitions. [2022-07-14 03:35:33,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 03:35:33,434 INFO L276 IsEmpty]: Start isEmpty. Operand 4016 states and 5638 transitions. [2022-07-14 03:35:33,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-14 03:35:33,435 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:35:33,435 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1] [2022-07-14 03:35:33,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 03:35:33,436 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:35:33,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:35:33,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1515598710, now seen corresponding path program 1 times [2022-07-14 03:35:33,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:35:33,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923710878] [2022-07-14 03:35:33,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:35:33,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:35:33,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:33,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:35:33,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:33,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:35:33,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:33,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 03:35:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:33,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 03:35:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:33,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 03:35:33,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:33,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:35:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:33,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 03:35:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:33,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 03:35:33,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:33,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:35:33,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:33,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 03:35:33,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:33,856 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-14 03:35:33,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:35:33,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923710878] [2022-07-14 03:35:33,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923710878] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:35:33,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:35:33,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 03:35:33,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618666247] [2022-07-14 03:35:33,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:35:33,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 03:35:33,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:35:33,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 03:35:33,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 03:35:33,860 INFO L87 Difference]: Start difference. First operand 4016 states and 5638 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-14 03:35:46,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:35:48,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:35:48,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:35:48,939 INFO L93 Difference]: Finished difference Result 4347 states and 6181 transitions. [2022-07-14 03:35:48,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 03:35:48,941 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (12), 4 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 72 [2022-07-14 03:35:48,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:35:49,010 INFO L225 Difference]: With dead ends: 4347 [2022-07-14 03:35:49,021 INFO L226 Difference]: Without dead ends: 4345 [2022-07-14 03:35:49,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:35:49,043 INFO L413 NwaCegarLoop]: 5145 mSDtfsCounter, 5870 mSDsluCounter, 8371 mSDsCounter, 0 mSdLazyCounter, 6440 mSolverCounterSat, 2886 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6479 SdHoareTripleChecker+Valid, 13516 SdHoareTripleChecker+Invalid, 9328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2886 IncrementalHoareTripleChecker+Valid, 6440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-07-14 03:35:49,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6479 Valid, 13516 Invalid, 9328 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2886 Valid, 6440 Invalid, 2 Unknown, 0 Unchecked, 14.6s Time] [2022-07-14 03:35:49,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4345 states. [2022-07-14 03:35:49,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4345 to 4020. [2022-07-14 03:35:49,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4020 states, 2652 states have (on average 1.2616892911010558) internal successors, (3346), 2755 states have internal predecessors, (3346), 1149 states have call successors, (1149), 217 states have call predecessors, (1149), 216 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-14 03:35:49,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4020 states to 4020 states and 5641 transitions. [2022-07-14 03:35:49,468 INFO L78 Accepts]: Start accepts. Automaton has 4020 states and 5641 transitions. Word has length 72 [2022-07-14 03:35:49,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:35:49,468 INFO L495 AbstractCegarLoop]: Abstraction has 4020 states and 5641 transitions. [2022-07-14 03:35:49,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-14 03:35:49,469 INFO L276 IsEmpty]: Start isEmpty. Operand 4020 states and 5641 transitions. [2022-07-14 03:35:49,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-14 03:35:49,472 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:35:49,472 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:35:49,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 03:35:49,472 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:35:49,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:35:49,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1695765182, now seen corresponding path program 1 times [2022-07-14 03:35:49,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:35:49,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265252592] [2022-07-14 03:35:49,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:35:49,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:35:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:49,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:35:49,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:49,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:35:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:49,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 03:35:49,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:49,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 03:35:49,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:49,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 03:35:49,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:49,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:35:49,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:49,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 03:35:49,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:49,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 03:35:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:49,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:35:49,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:49,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 03:35:49,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:49,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 03:35:49,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:49,858 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-14 03:35:49,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:35:49,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265252592] [2022-07-14 03:35:49,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265252592] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:35:49,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:35:49,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 03:35:49,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975809658] [2022-07-14 03:35:49,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:35:49,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 03:35:49,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:35:49,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 03:35:49,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 03:35:49,860 INFO L87 Difference]: Start difference. First operand 4020 states and 5641 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-14 03:35:59,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:35:59,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:35:59,852 INFO L93 Difference]: Finished difference Result 4351 states and 6184 transitions. [2022-07-14 03:35:59,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 03:35:59,853 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (13), 4 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 77 [2022-07-14 03:35:59,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:35:59,921 INFO L225 Difference]: With dead ends: 4351 [2022-07-14 03:35:59,921 INFO L226 Difference]: Without dead ends: 4349 [2022-07-14 03:35:59,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:35:59,926 INFO L413 NwaCegarLoop]: 5148 mSDtfsCounter, 5870 mSDsluCounter, 8380 mSDsCounter, 0 mSdLazyCounter, 6441 mSolverCounterSat, 2885 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6476 SdHoareTripleChecker+Valid, 13528 SdHoareTripleChecker+Invalid, 9327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2885 IncrementalHoareTripleChecker+Valid, 6441 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-07-14 03:35:59,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6476 Valid, 13528 Invalid, 9327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2885 Valid, 6441 Invalid, 1 Unknown, 0 Unchecked, 9.7s Time] [2022-07-14 03:35:59,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4349 states. [2022-07-14 03:36:00,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4349 to 4024. [2022-07-14 03:36:00,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4024 states, 2655 states have (on average 1.2613935969868173) internal successors, (3349), 2758 states have internal predecessors, (3349), 1149 states have call successors, (1149), 218 states have call predecessors, (1149), 217 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-14 03:36:00,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4024 states to 4024 states and 5644 transitions. [2022-07-14 03:36:00,213 INFO L78 Accepts]: Start accepts. Automaton has 4024 states and 5644 transitions. Word has length 77 [2022-07-14 03:36:00,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:36:00,214 INFO L495 AbstractCegarLoop]: Abstraction has 4024 states and 5644 transitions. [2022-07-14 03:36:00,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-14 03:36:00,214 INFO L276 IsEmpty]: Start isEmpty. Operand 4024 states and 5644 transitions. [2022-07-14 03:36:00,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-14 03:36:00,215 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:36:00,215 INFO L195 NwaCegarLoop]: 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] [2022-07-14 03:36:00,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 03:36:00,215 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:36:00,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:36:00,216 INFO L85 PathProgramCache]: Analyzing trace with hash 378443594, now seen corresponding path program 1 times [2022-07-14 03:36:00,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:36:00,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465645147] [2022-07-14 03:36:00,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:36:00,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:36:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:00,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:36:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:00,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:36:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:00,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 03:36:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:00,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 03:36:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:00,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 03:36:00,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:00,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:36:00,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:00,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 03:36:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:00,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 03:36:00,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:00,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:36:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:00,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 03:36:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:00,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 03:36:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:00,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-14 03:36:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:00,620 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-14 03:36:00,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:36:00,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465645147] [2022-07-14 03:36:00,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465645147] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:36:00,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:36:00,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 03:36:00,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244779371] [2022-07-14 03:36:00,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:36:00,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 03:36:00,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:36:00,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 03:36:00,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 03:36:00,622 INFO L87 Difference]: Start difference. First operand 4024 states and 5644 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 03:36:12,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:36:14,173 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:36:14,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:36:14,561 INFO L93 Difference]: Finished difference Result 4355 states and 6187 transitions. [2022-07-14 03:36:14,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 03:36:14,562 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 82 [2022-07-14 03:36:14,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:36:14,604 INFO L225 Difference]: With dead ends: 4355 [2022-07-14 03:36:14,604 INFO L226 Difference]: Without dead ends: 4353 [2022-07-14 03:36:14,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:36:14,608 INFO L413 NwaCegarLoop]: 5147 mSDtfsCounter, 5869 mSDsluCounter, 8376 mSDsCounter, 0 mSdLazyCounter, 6440 mSolverCounterSat, 2884 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6477 SdHoareTripleChecker+Valid, 13523 SdHoareTripleChecker+Invalid, 9326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2884 IncrementalHoareTripleChecker+Valid, 6440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-07-14 03:36:14,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6477 Valid, 13523 Invalid, 9326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2884 Valid, 6440 Invalid, 2 Unknown, 0 Unchecked, 13.6s Time] [2022-07-14 03:36:14,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4353 states. [2022-07-14 03:36:14,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4353 to 4028. [2022-07-14 03:36:14,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4028 states, 2658 states have (on average 1.2610985703536493) internal successors, (3352), 2761 states have internal predecessors, (3352), 1149 states have call successors, (1149), 219 states have call predecessors, (1149), 218 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-14 03:36:14,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4028 states to 4028 states and 5647 transitions. [2022-07-14 03:36:14,883 INFO L78 Accepts]: Start accepts. Automaton has 4028 states and 5647 transitions. Word has length 82 [2022-07-14 03:36:14,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:36:14,884 INFO L495 AbstractCegarLoop]: Abstraction has 4028 states and 5647 transitions. [2022-07-14 03:36:14,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 03:36:14,884 INFO L276 IsEmpty]: Start isEmpty. Operand 4028 states and 5647 transitions. [2022-07-14 03:36:14,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-14 03:36:14,889 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:36:14,889 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 4, 4, 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] [2022-07-14 03:36:14,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 03:36:14,890 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:36:14,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:36:14,890 INFO L85 PathProgramCache]: Analyzing trace with hash 991355451, now seen corresponding path program 1 times [2022-07-14 03:36:14,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:36:14,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230012977] [2022-07-14 03:36:14,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:36:14,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:36:15,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:15,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:36:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:15,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:36:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:15,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 03:36:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:15,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 03:36:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:15,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 03:36:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:15,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:36:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:15,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 03:36:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:15,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 03:36:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:15,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 03:36:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:15,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-14 03:36:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:15,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 03:36:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:15,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-14 03:36:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:15,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-14 03:36:15,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:15,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-14 03:36:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:15,185 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-07-14 03:36:15,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:36:15,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230012977] [2022-07-14 03:36:15,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230012977] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:36:15,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:36:15,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 03:36:15,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934990010] [2022-07-14 03:36:15,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:36:15,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 03:36:15,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:36:15,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 03:36:15,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 03:36:15,187 INFO L87 Difference]: Start difference. First operand 4028 states and 5647 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-14 03:36:25,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:36:27,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:36:27,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:36:27,909 INFO L93 Difference]: Finished difference Result 4359 states and 6190 transitions. [2022-07-14 03:36:27,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 03:36:27,909 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 4 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 102 [2022-07-14 03:36:27,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:36:28,001 INFO L225 Difference]: With dead ends: 4359 [2022-07-14 03:36:28,002 INFO L226 Difference]: Without dead ends: 4357 [2022-07-14 03:36:28,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:36:28,020 INFO L413 NwaCegarLoop]: 5146 mSDtfsCounter, 5858 mSDsluCounter, 8373 mSDsCounter, 0 mSdLazyCounter, 6440 mSolverCounterSat, 2883 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6466 SdHoareTripleChecker+Valid, 13519 SdHoareTripleChecker+Invalid, 9325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2883 IncrementalHoareTripleChecker+Valid, 6440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-07-14 03:36:28,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6466 Valid, 13519 Invalid, 9325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2883 Valid, 6440 Invalid, 2 Unknown, 0 Unchecked, 12.4s Time] [2022-07-14 03:36:28,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4357 states. [2022-07-14 03:36:28,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4357 to 4032. [2022-07-14 03:36:28,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4032 states, 2661 states have (on average 1.260804208944006) internal successors, (3355), 2764 states have internal predecessors, (3355), 1149 states have call successors, (1149), 220 states have call predecessors, (1149), 219 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-14 03:36:28,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4032 states to 4032 states and 5650 transitions. [2022-07-14 03:36:28,168 INFO L78 Accepts]: Start accepts. Automaton has 4032 states and 5650 transitions. Word has length 102 [2022-07-14 03:36:28,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:36:28,169 INFO L495 AbstractCegarLoop]: Abstraction has 4032 states and 5650 transitions. [2022-07-14 03:36:28,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-14 03:36:28,169 INFO L276 IsEmpty]: Start isEmpty. Operand 4032 states and 5650 transitions. [2022-07-14 03:36:28,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-14 03:36:28,171 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:36:28,171 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 4, 4, 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] [2022-07-14 03:36:28,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 03:36:28,171 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:36:28,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:36:28,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1707459953, now seen corresponding path program 1 times [2022-07-14 03:36:28,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:36:28,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926947643] [2022-07-14 03:36:28,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:36:28,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:36:28,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:28,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:36:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:28,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:36:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:28,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 03:36:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:28,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 03:36:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:28,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 03:36:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:28,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:36:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:28,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 03:36:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:28,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 03:36:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:28,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 03:36:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:28,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-14 03:36:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:28,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 03:36:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:28,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-14 03:36:28,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:28,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-14 03:36:28,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:28,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-14 03:36:28,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:28,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 03:36:28,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:28,465 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-07-14 03:36:28,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:36:28,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926947643] [2022-07-14 03:36:28,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926947643] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:36:28,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:36:28,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 03:36:28,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686548232] [2022-07-14 03:36:28,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:36:28,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 03:36:28,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:36:28,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 03:36:28,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 03:36:28,467 INFO L87 Difference]: Start difference. First operand 4032 states and 5650 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 03:36:37,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:36:38,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:36:38,117 INFO L93 Difference]: Finished difference Result 4363 states and 6193 transitions. [2022-07-14 03:36:38,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 03:36:38,117 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 107 [2022-07-14 03:36:38,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:36:38,136 INFO L225 Difference]: With dead ends: 4363 [2022-07-14 03:36:38,137 INFO L226 Difference]: Without dead ends: 4361 [2022-07-14 03:36:38,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:36:38,144 INFO L413 NwaCegarLoop]: 5151 mSDtfsCounter, 5855 mSDsluCounter, 8384 mSDsCounter, 0 mSdLazyCounter, 6441 mSolverCounterSat, 2880 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6462 SdHoareTripleChecker+Valid, 13535 SdHoareTripleChecker+Invalid, 9322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2880 IncrementalHoareTripleChecker+Valid, 6441 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-07-14 03:36:38,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6462 Valid, 13535 Invalid, 9322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2880 Valid, 6441 Invalid, 1 Unknown, 0 Unchecked, 9.3s Time] [2022-07-14 03:36:38,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4361 states. [2022-07-14 03:36:38,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4361 to 4036. [2022-07-14 03:36:38,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4036 states, 2664 states have (on average 1.2605105105105106) internal successors, (3358), 2767 states have internal predecessors, (3358), 1149 states have call successors, (1149), 221 states have call predecessors, (1149), 220 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-14 03:36:38,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4036 states to 4036 states and 5653 transitions. [2022-07-14 03:36:38,291 INFO L78 Accepts]: Start accepts. Automaton has 4036 states and 5653 transitions. Word has length 107 [2022-07-14 03:36:38,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:36:38,292 INFO L495 AbstractCegarLoop]: Abstraction has 4036 states and 5653 transitions. [2022-07-14 03:36:38,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 03:36:38,292 INFO L276 IsEmpty]: Start isEmpty. Operand 4036 states and 5653 transitions. [2022-07-14 03:36:38,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-14 03:36:38,294 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:36:38,294 INFO L195 NwaCegarLoop]: 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] [2022-07-14 03:36:38,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 03:36:38,294 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:36:38,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:36:38,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1782733118, now seen corresponding path program 1 times [2022-07-14 03:36:38,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:36:38,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57236008] [2022-07-14 03:36:38,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:36:38,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:36:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:38,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:36:38,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:38,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:36:38,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:38,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 03:36:38,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:38,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 03:36:38,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:38,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 03:36:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:38,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:36:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:38,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 03:36:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:38,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 03:36:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:38,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:36:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:38,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 03:36:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:38,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 03:36:38,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:38,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-14 03:36:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:38,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 03:36:38,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:38,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-14 03:36:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:38,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-14 03:36:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:38,548 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-14 03:36:38,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:36:38,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57236008] [2022-07-14 03:36:38,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57236008] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:36:38,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:36:38,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 03:36:38,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446100544] [2022-07-14 03:36:38,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:36:38,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 03:36:38,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:36:38,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 03:36:38,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 03:36:38,550 INFO L87 Difference]: Start difference. First operand 4036 states and 5653 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 03:36:49,602 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:36:51,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:36:52,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:36:52,235 INFO L93 Difference]: Finished difference Result 4367 states and 6196 transitions. [2022-07-14 03:36:52,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 03:36:52,236 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 97 [2022-07-14 03:36:52,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:36:52,278 INFO L225 Difference]: With dead ends: 4367 [2022-07-14 03:36:52,279 INFO L226 Difference]: Without dead ends: 4365 [2022-07-14 03:36:52,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:36:52,281 INFO L413 NwaCegarLoop]: 5148 mSDtfsCounter, 5867 mSDsluCounter, 8376 mSDsCounter, 0 mSdLazyCounter, 6440 mSolverCounterSat, 2879 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6477 SdHoareTripleChecker+Valid, 13524 SdHoareTripleChecker+Invalid, 9321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2879 IncrementalHoareTripleChecker+Valid, 6440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:36:52,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6477 Valid, 13524 Invalid, 9321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2879 Valid, 6440 Invalid, 2 Unknown, 0 Unchecked, 13.2s Time] [2022-07-14 03:36:52,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4365 states. [2022-07-14 03:36:52,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4365 to 4040. [2022-07-14 03:36:52,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4040 states, 2667 states have (on average 1.260217472815898) internal successors, (3361), 2770 states have internal predecessors, (3361), 1149 states have call successors, (1149), 222 states have call predecessors, (1149), 221 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-14 03:36:52,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4040 states to 4040 states and 5656 transitions. [2022-07-14 03:36:52,431 INFO L78 Accepts]: Start accepts. Automaton has 4040 states and 5656 transitions. Word has length 97 [2022-07-14 03:36:52,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:36:52,432 INFO L495 AbstractCegarLoop]: Abstraction has 4040 states and 5656 transitions. [2022-07-14 03:36:52,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 03:36:52,432 INFO L276 IsEmpty]: Start isEmpty. Operand 4040 states and 5656 transitions. [2022-07-14 03:36:52,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-14 03:36:52,433 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:36:52,433 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 4, 4, 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, 1, 1, 1] [2022-07-14 03:36:52,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-14 03:36:52,434 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:36:52,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:36:52,434 INFO L85 PathProgramCache]: Analyzing trace with hash -581616783, now seen corresponding path program 1 times [2022-07-14 03:36:52,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:36:52,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162497042] [2022-07-14 03:36:52,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:36:52,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:36:52,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:52,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:36:52,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:52,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:36:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:52,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 03:36:52,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:52,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 03:36:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:52,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 03:36:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:52,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:36:52,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:52,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 03:36:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:52,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 03:36:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:52,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 03:36:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:52,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-14 03:36:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:52,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 03:36:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:52,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-14 03:36:52,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:52,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-14 03:36:52,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:52,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-14 03:36:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:52,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 03:36:52,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:52,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-14 03:36:52,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:52,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-14 03:36:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:52,934 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-07-14 03:36:52,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:36:52,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162497042] [2022-07-14 03:36:52,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162497042] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:36:52,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:36:52,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 03:36:52,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877818981] [2022-07-14 03:36:52,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:36:52,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 03:36:52,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:36:52,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 03:36:52,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 03:36:52,949 INFO L87 Difference]: Start difference. First operand 4040 states and 5656 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 03:37:01,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:37:01,363 INFO L93 Difference]: Finished difference Result 4371 states and 6199 transitions. [2022-07-14 03:37:01,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 03:37:01,366 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 117 [2022-07-14 03:37:01,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:37:01,380 INFO L225 Difference]: With dead ends: 4371 [2022-07-14 03:37:01,380 INFO L226 Difference]: Without dead ends: 4369 [2022-07-14 03:37:01,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:37:01,382 INFO L413 NwaCegarLoop]: 5151 mSDtfsCounter, 5855 mSDsluCounter, 8384 mSDsCounter, 0 mSdLazyCounter, 6442 mSolverCounterSat, 2878 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6462 SdHoareTripleChecker+Valid, 13535 SdHoareTripleChecker+Invalid, 9320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2878 IncrementalHoareTripleChecker+Valid, 6442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-07-14 03:37:01,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6462 Valid, 13535 Invalid, 9320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2878 Valid, 6442 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2022-07-14 03:37:01,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4369 states. [2022-07-14 03:37:01,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4369 to 4044. [2022-07-14 03:37:01,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4044 states, 2670 states have (on average 1.259925093632959) internal successors, (3364), 2773 states have internal predecessors, (3364), 1149 states have call successors, (1149), 223 states have call predecessors, (1149), 222 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-14 03:37:01,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4044 states to 4044 states and 5659 transitions. [2022-07-14 03:37:01,522 INFO L78 Accepts]: Start accepts. Automaton has 4044 states and 5659 transitions. Word has length 117 [2022-07-14 03:37:01,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:37:01,522 INFO L495 AbstractCegarLoop]: Abstraction has 4044 states and 5659 transitions. [2022-07-14 03:37:01,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 03:37:01,523 INFO L276 IsEmpty]: Start isEmpty. Operand 4044 states and 5659 transitions. [2022-07-14 03:37:01,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-14 03:37:01,525 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:37:01,525 INFO L195 NwaCegarLoop]: 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] [2022-07-14 03:37:01,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-14 03:37:01,525 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:37:01,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:37:01,525 INFO L85 PathProgramCache]: Analyzing trace with hash -214088830, now seen corresponding path program 1 times [2022-07-14 03:37:01,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:37:01,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326454128] [2022-07-14 03:37:01,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:37:01,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:37:01,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:01,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:37:01,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:01,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:37:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:01,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 03:37:01,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:01,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 03:37:01,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:01,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 03:37:01,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:01,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:37:01,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:01,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 03:37:01,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:01,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 03:37:01,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:01,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:37:01,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:01,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 03:37:01,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:01,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 03:37:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:01,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-14 03:37:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:01,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 03:37:01,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:01,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-14 03:37:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:01,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-14 03:37:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:01,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-14 03:37:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:01,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 03:37:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:01,929 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-07-14 03:37:01,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:37:01,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326454128] [2022-07-14 03:37:01,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326454128] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:37:01,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:37:01,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 03:37:01,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984399853] [2022-07-14 03:37:01,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:37:01,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 03:37:01,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:37:01,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 03:37:01,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 03:37:01,931 INFO L87 Difference]: Start difference. First operand 4044 states and 5659 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 03:37:10,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:37:10,226 INFO L93 Difference]: Finished difference Result 4456 states and 6278 transitions. [2022-07-14 03:37:10,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 03:37:10,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 107 [2022-07-14 03:37:10,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:37:10,242 INFO L225 Difference]: With dead ends: 4456 [2022-07-14 03:37:10,243 INFO L226 Difference]: Without dead ends: 4454 [2022-07-14 03:37:10,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:37:10,245 INFO L413 NwaCegarLoop]: 5192 mSDtfsCounter, 5416 mSDsluCounter, 8821 mSDsCounter, 0 mSdLazyCounter, 6769 mSolverCounterSat, 2830 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5930 SdHoareTripleChecker+Valid, 14013 SdHoareTripleChecker+Invalid, 9599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2830 IncrementalHoareTripleChecker+Valid, 6769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-07-14 03:37:10,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5930 Valid, 14013 Invalid, 9599 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2830 Valid, 6769 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2022-07-14 03:37:10,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2022-07-14 03:37:10,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4127. [2022-07-14 03:37:10,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4127 states, 2726 states have (on average 1.2560528246515041) internal successors, (3424), 2829 states have internal predecessors, (3424), 1158 states have call successors, (1158), 241 states have call predecessors, (1158), 240 states have return successors, (1155), 1123 states have call predecessors, (1155), 1155 states have call successors, (1155) [2022-07-14 03:37:10,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4127 states to 4127 states and 5737 transitions. [2022-07-14 03:37:10,403 INFO L78 Accepts]: Start accepts. Automaton has 4127 states and 5737 transitions. Word has length 107 [2022-07-14 03:37:10,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:37:10,404 INFO L495 AbstractCegarLoop]: Abstraction has 4127 states and 5737 transitions. [2022-07-14 03:37:10,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 03:37:10,404 INFO L276 IsEmpty]: Start isEmpty. Operand 4127 states and 5737 transitions. [2022-07-14 03:37:10,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-14 03:37:10,406 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:37:10,406 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:37:10,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-14 03:37:10,406 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:37:10,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:37:10,407 INFO L85 PathProgramCache]: Analyzing trace with hash -84221583, now seen corresponding path program 1 times [2022-07-14 03:37:10,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:37:10,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222769495] [2022-07-14 03:37:10,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:37:10,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:37:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:10,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:37:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:10,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:37:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:10,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 03:37:10,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:10,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 03:37:10,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:10,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 03:37:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:10,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:37:10,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:10,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 03:37:10,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:10,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 03:37:10,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:10,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 03:37:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:10,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-14 03:37:10,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:10,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 03:37:10,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:10,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-14 03:37:10,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:10,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-14 03:37:10,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:10,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-14 03:37:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:10,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 03:37:10,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:10,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-14 03:37:10,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:10,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-14 03:37:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:10,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 03:37:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:10,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-14 03:37:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:10,698 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-14 03:37:10,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:37:10,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222769495] [2022-07-14 03:37:10,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222769495] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:37:10,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:37:10,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 03:37:10,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192000264] [2022-07-14 03:37:10,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:37:10,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 03:37:10,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:37:10,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 03:37:10,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 03:37:10,701 INFO L87 Difference]: Start difference. First operand 4127 states and 5737 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 03:37:20,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:37:20,040 INFO L93 Difference]: Finished difference Result 4458 states and 6280 transitions. [2022-07-14 03:37:20,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 03:37:20,042 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 127 [2022-07-14 03:37:20,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:37:20,091 INFO L225 Difference]: With dead ends: 4458 [2022-07-14 03:37:20,092 INFO L226 Difference]: Without dead ends: 4456 [2022-07-14 03:37:20,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:37:20,095 INFO L413 NwaCegarLoop]: 5149 mSDtfsCounter, 5855 mSDsluCounter, 8378 mSDsCounter, 0 mSdLazyCounter, 6442 mSolverCounterSat, 2876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6464 SdHoareTripleChecker+Valid, 13527 SdHoareTripleChecker+Invalid, 9318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2876 IncrementalHoareTripleChecker+Valid, 6442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-07-14 03:37:20,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6464 Valid, 13527 Invalid, 9318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2876 Valid, 6442 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2022-07-14 03:37:20,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4456 states. [2022-07-14 03:37:20,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4456 to 4131. [2022-07-14 03:37:20,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4131 states, 2729 states have (on average 1.2557713448149506) internal successors, (3427), 2832 states have internal predecessors, (3427), 1158 states have call successors, (1158), 242 states have call predecessors, (1158), 241 states have return successors, (1155), 1123 states have call predecessors, (1155), 1155 states have call successors, (1155) [2022-07-14 03:37:20,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4131 states to 4131 states and 5740 transitions. [2022-07-14 03:37:20,262 INFO L78 Accepts]: Start accepts. Automaton has 4131 states and 5740 transitions. Word has length 127 [2022-07-14 03:37:20,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:37:20,264 INFO L495 AbstractCegarLoop]: Abstraction has 4131 states and 5740 transitions. [2022-07-14 03:37:20,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 03:37:20,264 INFO L276 IsEmpty]: Start isEmpty. Operand 4131 states and 5740 transitions. [2022-07-14 03:37:20,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-14 03:37:20,266 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:37:20,266 INFO L195 NwaCegarLoop]: 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] [2022-07-14 03:37:20,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-14 03:37:20,267 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:37:20,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:37:20,267 INFO L85 PathProgramCache]: Analyzing trace with hash -387866558, now seen corresponding path program 1 times [2022-07-14 03:37:20,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:37:20,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152850903] [2022-07-14 03:37:20,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:37:20,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:37:20,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:20,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:37:20,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:20,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:37:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:20,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 03:37:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:20,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 03:37:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:20,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 03:37:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:20,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:37:20,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:20,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 03:37:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:20,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 03:37:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:20,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:37:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:20,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 03:37:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:20,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 03:37:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:20,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-14 03:37:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:20,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 03:37:20,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:20,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-14 03:37:20,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:20,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-14 03:37:20,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:20,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-14 03:37:20,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:20,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 03:37:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:20,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-14 03:37:20,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:20,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-14 03:37:20,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:20,609 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2022-07-14 03:37:20,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:37:20,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152850903] [2022-07-14 03:37:20,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152850903] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:37:20,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:37:20,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 03:37:20,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536851066] [2022-07-14 03:37:20,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:37:20,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 03:37:20,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:37:20,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 03:37:20,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 03:37:20,611 INFO L87 Difference]: Start difference. First operand 4131 states and 5740 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 03:37:31,055 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:37:33,204 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:37:33,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:37:33,825 INFO L93 Difference]: Finished difference Result 4462 states and 6283 transitions. [2022-07-14 03:37:33,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 03:37:33,826 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 117 [2022-07-14 03:37:33,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:37:33,843 INFO L225 Difference]: With dead ends: 4462 [2022-07-14 03:37:33,843 INFO L226 Difference]: Without dead ends: 4460 [2022-07-14 03:37:33,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:37:33,852 INFO L413 NwaCegarLoop]: 5150 mSDtfsCounter, 5867 mSDsluCounter, 8382 mSDsCounter, 0 mSdLazyCounter, 6440 mSolverCounterSat, 2875 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6475 SdHoareTripleChecker+Valid, 13532 SdHoareTripleChecker+Invalid, 9317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2875 IncrementalHoareTripleChecker+Valid, 6440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-07-14 03:37:33,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6475 Valid, 13532 Invalid, 9317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2875 Valid, 6440 Invalid, 2 Unknown, 0 Unchecked, 12.8s Time] [2022-07-14 03:37:33,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4460 states. [2022-07-14 03:37:34,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4460 to 4135. [2022-07-14 03:37:34,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4135 states, 2732 states have (on average 1.2554904831625182) internal successors, (3430), 2835 states have internal predecessors, (3430), 1158 states have call successors, (1158), 243 states have call predecessors, (1158), 242 states have return successors, (1155), 1123 states have call predecessors, (1155), 1155 states have call successors, (1155) [2022-07-14 03:37:34,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4135 states to 4135 states and 5743 transitions. [2022-07-14 03:37:34,184 INFO L78 Accepts]: Start accepts. Automaton has 4135 states and 5743 transitions. Word has length 117 [2022-07-14 03:37:34,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:37:34,185 INFO L495 AbstractCegarLoop]: Abstraction has 4135 states and 5743 transitions. [2022-07-14 03:37:34,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 03:37:34,185 INFO L276 IsEmpty]: Start isEmpty. Operand 4135 states and 5743 transitions. [2022-07-14 03:37:34,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-14 03:37:34,187 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:37:34,187 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:37:34,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-14 03:37:34,188 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:37:34,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:37:34,188 INFO L85 PathProgramCache]: Analyzing trace with hash 2092611441, now seen corresponding path program 1 times [2022-07-14 03:37:34,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:37:34,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394969269] [2022-07-14 03:37:34,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:37:34,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:37:34,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:34,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:37:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:34,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:37:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:34,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 03:37:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:34,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 03:37:34,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:34,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 03:37:34,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:34,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:37:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:34,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 03:37:34,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:34,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 03:37:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:34,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 03:37:34,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:34,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-14 03:37:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:34,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 03:37:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:34,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-14 03:37:34,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:34,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-14 03:37:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:34,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-14 03:37:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:34,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 03:37:34,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:34,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-14 03:37:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:34,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-14 03:37:34,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:34,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 03:37:34,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:34,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-14 03:37:34,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:34,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-14 03:37:34,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:34,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 03:37:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:34,505 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-14 03:37:34,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:37:34,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394969269] [2022-07-14 03:37:34,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394969269] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:37:34,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:37:34,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 03:37:34,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309328159] [2022-07-14 03:37:34,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:37:34,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 03:37:34,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:37:34,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 03:37:34,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 03:37:34,507 INFO L87 Difference]: Start difference. First operand 4135 states and 5743 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 03:37:43,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:37:45,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:37:46,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:37:46,322 INFO L93 Difference]: Finished difference Result 4466 states and 6286 transitions. [2022-07-14 03:37:46,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 03:37:46,324 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 137 [2022-07-14 03:37:46,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:37:46,343 INFO L225 Difference]: With dead ends: 4466 [2022-07-14 03:37:46,343 INFO L226 Difference]: Without dead ends: 4464 [2022-07-14 03:37:46,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:37:46,348 INFO L413 NwaCegarLoop]: 5147 mSDtfsCounter, 5858 mSDsluCounter, 8376 mSDsCounter, 0 mSdLazyCounter, 6440 mSolverCounterSat, 2876 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6465 SdHoareTripleChecker+Valid, 13523 SdHoareTripleChecker+Invalid, 9318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2876 IncrementalHoareTripleChecker+Valid, 6440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-07-14 03:37:46,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6465 Valid, 13523 Invalid, 9318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2876 Valid, 6440 Invalid, 2 Unknown, 0 Unchecked, 11.4s Time] [2022-07-14 03:37:46,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4464 states. [2022-07-14 03:37:46,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4464 to 4139. [2022-07-14 03:37:46,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4139 states, 2735 states have (on average 1.2552102376599634) internal successors, (3433), 2838 states have internal predecessors, (3433), 1158 states have call successors, (1158), 244 states have call predecessors, (1158), 243 states have return successors, (1155), 1123 states have call predecessors, (1155), 1155 states have call successors, (1155) [2022-07-14 03:37:46,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4139 states to 4139 states and 5746 transitions. [2022-07-14 03:37:46,754 INFO L78 Accepts]: Start accepts. Automaton has 4139 states and 5746 transitions. Word has length 137 [2022-07-14 03:37:46,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:37:46,755 INFO L495 AbstractCegarLoop]: Abstraction has 4139 states and 5746 transitions. [2022-07-14 03:37:46,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 03:37:46,755 INFO L276 IsEmpty]: Start isEmpty. Operand 4139 states and 5746 transitions. [2022-07-14 03:37:46,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-14 03:37:46,767 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:37:46,768 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:37:46,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-14 03:37:46,768 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:37:46,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:37:46,774 INFO L85 PathProgramCache]: Analyzing trace with hash -2026870725, now seen corresponding path program 1 times [2022-07-14 03:37:46,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:37:46,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427759433] [2022-07-14 03:37:46,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:37:46,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:37:46,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:46,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:37:46,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:46,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:37:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:47,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 03:37:47,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:47,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 03:37:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:47,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 03:37:47,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:47,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:37:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:47,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 03:37:47,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:47,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 03:37:47,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:47,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 03:37:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:47,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-14 03:37:47,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:47,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 03:37:47,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:47,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-14 03:37:47,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:47,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-14 03:37:47,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:47,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-14 03:37:47,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:47,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 03:37:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:47,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-14 03:37:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:47,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-14 03:37:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:47,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 03:37:47,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:47,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-14 03:37:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:47,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-14 03:37:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:47,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 03:37:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:47,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-14 03:37:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:47,089 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2022-07-14 03:37:47,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:37:47,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427759433] [2022-07-14 03:37:47,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427759433] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:37:47,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:37:47,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 03:37:47,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516474954] [2022-07-14 03:37:47,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:37:47,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 03:37:47,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:37:47,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 03:37:47,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 03:37:47,091 INFO L87 Difference]: Start difference. First operand 4139 states and 5746 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-14 03:37:55,566 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:37:57,731 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:37:58,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:37:58,369 INFO L93 Difference]: Finished difference Result 4470 states and 6289 transitions. [2022-07-14 03:37:58,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 03:37:58,370 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 142 [2022-07-14 03:37:58,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:37:58,406 INFO L225 Difference]: With dead ends: 4470 [2022-07-14 03:37:58,406 INFO L226 Difference]: Without dead ends: 4466 [2022-07-14 03:37:58,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:37:58,414 INFO L413 NwaCegarLoop]: 5149 mSDtfsCounter, 5856 mSDsluCounter, 8379 mSDsCounter, 0 mSdLazyCounter, 6440 mSolverCounterSat, 2873 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6464 SdHoareTripleChecker+Valid, 13528 SdHoareTripleChecker+Invalid, 9315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2873 IncrementalHoareTripleChecker+Valid, 6440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-07-14 03:37:58,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6464 Valid, 13528 Invalid, 9315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2873 Valid, 6440 Invalid, 2 Unknown, 0 Unchecked, 10.9s Time] [2022-07-14 03:37:58,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4466 states. [2022-07-14 03:37:58,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4466 to 4141. [2022-07-14 03:37:58,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4141 states, 2737 states have (on average 1.2546583850931676) internal successors, (3434), 2839 states have internal predecessors, (3434), 1158 states have call successors, (1158), 245 states have call predecessors, (1158), 243 states have return successors, (1155), 1123 states have call predecessors, (1155), 1155 states have call successors, (1155) [2022-07-14 03:37:58,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4141 states to 4141 states and 5747 transitions. [2022-07-14 03:37:58,785 INFO L78 Accepts]: Start accepts. Automaton has 4141 states and 5747 transitions. Word has length 142 [2022-07-14 03:37:58,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:37:58,786 INFO L495 AbstractCegarLoop]: Abstraction has 4141 states and 5747 transitions. [2022-07-14 03:37:58,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-14 03:37:58,786 INFO L276 IsEmpty]: Start isEmpty. Operand 4141 states and 5747 transitions. [2022-07-14 03:37:58,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-07-14 03:37:58,802 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:37:58,803 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 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, 1, 1] [2022-07-14 03:37:58,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-14 03:37:58,803 INFO L420 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)] === [2022-07-14 03:37:58,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:37:58,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1140280586, now seen corresponding path program 1 times [2022-07-14 03:37:58,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:37:58,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708877570] [2022-07-14 03:37:58,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:37:58,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:37:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:59,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:37:59,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:59,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:37:59,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:59,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 03:37:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:59,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 03:37:59,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:59,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 03:37:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:59,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:37:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:59,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 03:37:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:59,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 03:37:59,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:59,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:37:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:59,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 03:37:59,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:59,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 03:37:59,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:59,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-14 03:37:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:59,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 03:37:59,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:59,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-14 03:37:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:59,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-14 03:37:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:59,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-14 03:37:59,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:59,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 03:37:59,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:59,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-14 03:37:59,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:59,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-14 03:37:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:59,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 03:37:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:59,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-14 03:37:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:59,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-14 03:37:59,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:37:59,115 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-07-14 03:37:59,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:37:59,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708877570] [2022-07-14 03:37:59,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708877570] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:37:59,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:37:59,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 03:37:59,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370770380] [2022-07-14 03:37:59,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:37:59,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 03:37:59,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:37:59,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 03:37:59,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 03:37:59,117 INFO L87 Difference]: Start difference. First operand 4141 states and 5747 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-14 03:38:08,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:38:08,417 INFO L93 Difference]: Finished difference Result 4530 states and 6344 transitions. [2022-07-14 03:38:08,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 03:38:08,417 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 132 [2022-07-14 03:38:08,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:38:08,430 INFO L225 Difference]: With dead ends: 4530 [2022-07-14 03:38:08,430 INFO L226 Difference]: Without dead ends: 4370 [2022-07-14 03:38:08,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:38:08,433 INFO L413 NwaCegarLoop]: 5148 mSDtfsCounter, 5870 mSDsluCounter, 8416 mSDsCounter, 0 mSdLazyCounter, 6525 mSolverCounterSat, 2882 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6472 SdHoareTripleChecker+Valid, 13564 SdHoareTripleChecker+Invalid, 9407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2882 IncrementalHoareTripleChecker+Valid, 6525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-07-14 03:38:08,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6472 Valid, 13564 Invalid, 9407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2882 Valid, 6525 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2022-07-14 03:38:08,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4370 states. [2022-07-14 03:38:08,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4370 to 4041. [2022-07-14 03:38:08,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4041 states, 2676 states have (on average 1.257847533632287) internal successors, (3366), 2772 states have internal predecessors, (3366), 1122 states have call successors, (1122), 241 states have call predecessors, (1122), 241 states have return successors, (1122), 1092 states have call predecessors, (1122), 1122 states have call successors, (1122) [2022-07-14 03:38:08,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4041 states to 4041 states and 5610 transitions. [2022-07-14 03:38:08,625 INFO L78 Accepts]: Start accepts. Automaton has 4041 states and 5610 transitions. Word has length 132 [2022-07-14 03:38:08,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:38:08,625 INFO L495 AbstractCegarLoop]: Abstraction has 4041 states and 5610 transitions. [2022-07-14 03:38:08,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-14 03:38:08,626 INFO L276 IsEmpty]: Start isEmpty. Operand 4041 states and 5610 transitions. [2022-07-14 03:38:08,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-07-14 03:38:08,628 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:38:08,628 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 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] [2022-07-14 03:38:08,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-14 03:38:08,628 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:38:08,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:38:08,629 INFO L85 PathProgramCache]: Analyzing trace with hash 536943563, now seen corresponding path program 1 times [2022-07-14 03:38:08,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:38:08,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881139499] [2022-07-14 03:38:08,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:38:08,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:38:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:08,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:38:08,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:08,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:38:08,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:08,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 03:38:08,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:08,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 03:38:08,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:08,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 03:38:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:08,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:38:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:08,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 03:38:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:08,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 03:38:08,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:08,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 03:38:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:08,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 03:38:08,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:08,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:38:08,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:08,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 03:38:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:08,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 03:38:08,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:08,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 03:38:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:09,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-14 03:38:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:09,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:38:09,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:09,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 03:38:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:09,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 03:38:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:09,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-14 03:38:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:09,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 03:38:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:09,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-14 03:38:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:09,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:38:09,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:09,051 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-07-14 03:38:09,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:38:09,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881139499] [2022-07-14 03:38:09,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881139499] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:38:09,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:38:09,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 03:38:09,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468970906] [2022-07-14 03:38:09,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:38:09,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 03:38:09,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:38:09,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 03:38:09,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 03:38:09,055 INFO L87 Difference]: Start difference. First operand 4041 states and 5610 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-07-14 03:38:16,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:38:17,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:38:17,527 INFO L93 Difference]: Finished difference Result 8325 states and 11666 transitions. [2022-07-14 03:38:17,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 03:38:17,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2022-07-14 03:38:17,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:38:17,561 INFO L225 Difference]: With dead ends: 8325 [2022-07-14 03:38:17,562 INFO L226 Difference]: Without dead ends: 4367 [2022-07-14 03:38:17,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:38:17,619 INFO L413 NwaCegarLoop]: 5025 mSDtfsCounter, 1460 mSDsluCounter, 5057 mSDsCounter, 0 mSdLazyCounter, 3768 mSolverCounterSat, 1235 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1953 SdHoareTripleChecker+Valid, 10082 SdHoareTripleChecker+Invalid, 5004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1235 IncrementalHoareTripleChecker+Valid, 3768 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-07-14 03:38:17,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1953 Valid, 10082 Invalid, 5004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1235 Valid, 3768 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2022-07-14 03:38:17,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4367 states. [2022-07-14 03:38:18,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4367 to 4042. [2022-07-14 03:38:18,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4042 states, 2677 states have (on average 1.2577512140455733) internal successors, (3367), 2773 states have internal predecessors, (3367), 1122 states have call successors, (1122), 241 states have call predecessors, (1122), 241 states have return successors, (1122), 1092 states have call predecessors, (1122), 1122 states have call successors, (1122) [2022-07-14 03:38:18,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4042 states to 4042 states and 5611 transitions. [2022-07-14 03:38:18,272 INFO L78 Accepts]: Start accepts. Automaton has 4042 states and 5611 transitions. Word has length 155 [2022-07-14 03:38:18,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:38:18,274 INFO L495 AbstractCegarLoop]: Abstraction has 4042 states and 5611 transitions. [2022-07-14 03:38:18,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-07-14 03:38:18,274 INFO L276 IsEmpty]: Start isEmpty. Operand 4042 states and 5611 transitions. [2022-07-14 03:38:18,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-07-14 03:38:18,276 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:38:18,276 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 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] [2022-07-14 03:38:18,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-14 03:38:18,277 INFO L420 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)] === [2022-07-14 03:38:18,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:38:18,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1238008141, now seen corresponding path program 1 times [2022-07-14 03:38:18,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:38:18,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019983062] [2022-07-14 03:38:18,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:38:18,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:38:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:18,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:38:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:18,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:38:18,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:18,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 03:38:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:18,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 03:38:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:18,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 03:38:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:18,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:38:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:18,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 03:38:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:18,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 03:38:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:18,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 03:38:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:18,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 03:38:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:18,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:38:18,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:18,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 03:38:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:18,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 03:38:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:18,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 03:38:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:18,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-14 03:38:18,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:18,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:38:18,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:18,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 03:38:18,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:18,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 03:38:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:18,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-14 03:38:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:18,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 03:38:18,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:18,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-14 03:38:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:18,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:38:18,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:18,770 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-07-14 03:38:18,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:38:18,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019983062] [2022-07-14 03:38:18,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019983062] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:38:18,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:38:18,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 03:38:18,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572636648] [2022-07-14 03:38:18,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:38:18,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 03:38:18,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:38:18,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 03:38:18,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 03:38:18,773 INFO L87 Difference]: Start difference. First operand 4042 states and 5611 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 03:38:26,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:38:26,351 INFO L93 Difference]: Finished difference Result 4375 states and 6155 transitions. [2022-07-14 03:38:26,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 03:38:26,352 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2022-07-14 03:38:26,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:38:26,364 INFO L225 Difference]: With dead ends: 4375 [2022-07-14 03:38:26,365 INFO L226 Difference]: Without dead ends: 4373 [2022-07-14 03:38:26,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:38:26,374 INFO L413 NwaCegarLoop]: 5049 mSDtfsCounter, 5279 mSDsluCounter, 8534 mSDsCounter, 0 mSdLazyCounter, 6645 mSolverCounterSat, 2745 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5776 SdHoareTripleChecker+Valid, 13583 SdHoareTripleChecker+Invalid, 9390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2745 IncrementalHoareTripleChecker+Valid, 6645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:38:26,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5776 Valid, 13583 Invalid, 9390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2745 Valid, 6645 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-07-14 03:38:26,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4373 states. [2022-07-14 03:38:26,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4373 to 4046. [2022-07-14 03:38:26,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4046 states, 2680 states have (on average 1.257462686567164) internal successors, (3370), 2776 states have internal predecessors, (3370), 1122 states have call successors, (1122), 242 states have call predecessors, (1122), 242 states have return successors, (1122), 1092 states have call predecessors, (1122), 1122 states have call successors, (1122) [2022-07-14 03:38:26,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4046 states to 4046 states and 5614 transitions. [2022-07-14 03:38:26,656 INFO L78 Accepts]: Start accepts. Automaton has 4046 states and 5614 transitions. Word has length 155 [2022-07-14 03:38:26,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:38:26,656 INFO L495 AbstractCegarLoop]: Abstraction has 4046 states and 5614 transitions. [2022-07-14 03:38:26,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 03:38:26,657 INFO L276 IsEmpty]: Start isEmpty. Operand 4046 states and 5614 transitions. [2022-07-14 03:38:26,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-07-14 03:38:26,660 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:38:26,661 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:38:26,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-14 03:38:26,661 INFO L420 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)] === [2022-07-14 03:38:26,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:38:26,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1064455726, now seen corresponding path program 1 times [2022-07-14 03:38:26,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:38:26,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970222677] [2022-07-14 03:38:26,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:38:26,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:38:26,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:26,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:38:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:26,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:38:26,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:26,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 03:38:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:26,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 03:38:26,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:26,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 03:38:26,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:26,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:38:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:26,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 03:38:26,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:26,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 03:38:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:26,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 03:38:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:26,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 03:38:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:26,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:38:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:26,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 03:38:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:26,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 03:38:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:26,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 03:38:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:26,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-14 03:38:27,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:27,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:38:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:27,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 03:38:27,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:27,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 03:38:27,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:27,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-14 03:38:27,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:27,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 03:38:27,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:27,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-14 03:38:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:27,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-14 03:38:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:27,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-14 03:38:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:27,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-14 03:38:27,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:27,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-14 03:38:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:27,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 03:38:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:27,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:38:27,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:27,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-14 03:38:27,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:27,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-14 03:38:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:27,085 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-07-14 03:38:27,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:38:27,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970222677] [2022-07-14 03:38:27,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970222677] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:38:27,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:38:27,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 03:38:27,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248397978] [2022-07-14 03:38:27,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:38:27,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 03:38:27,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:38:27,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 03:38:27,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 03:38:27,087 INFO L87 Difference]: Start difference. First operand 4046 states and 5614 transitions. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-14 03:38:36,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:38:36,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:38:36,716 INFO L93 Difference]: Finished difference Result 4379 states and 6158 transitions. [2022-07-14 03:38:36,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 03:38:36,718 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 204 [2022-07-14 03:38:36,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:38:36,744 INFO L225 Difference]: With dead ends: 4379 [2022-07-14 03:38:36,744 INFO L226 Difference]: Without dead ends: 4377 [2022-07-14 03:38:36,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:38:36,749 INFO L413 NwaCegarLoop]: 5026 mSDtfsCounter, 5700 mSDsluCounter, 8088 mSDsCounter, 0 mSdLazyCounter, 6419 mSolverCounterSat, 2803 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6266 SdHoareTripleChecker+Valid, 13114 SdHoareTripleChecker+Invalid, 9223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2803 IncrementalHoareTripleChecker+Valid, 6419 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:38:36,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6266 Valid, 13114 Invalid, 9223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2803 Valid, 6419 Invalid, 1 Unknown, 0 Unchecked, 9.2s Time] [2022-07-14 03:38:36,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4377 states. [2022-07-14 03:38:36,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4377 to 4050. [2022-07-14 03:38:36,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4050 states, 2683 states have (on average 1.2568020872158032) internal successors, (3372), 2779 states have internal predecessors, (3372), 1122 states have call successors, (1122), 243 states have call predecessors, (1122), 243 states have return successors, (1122), 1092 states have call predecessors, (1122), 1122 states have call successors, (1122) [2022-07-14 03:38:36,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4050 states to 4050 states and 5616 transitions. [2022-07-14 03:38:36,910 INFO L78 Accepts]: Start accepts. Automaton has 4050 states and 5616 transitions. Word has length 204 [2022-07-14 03:38:36,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:38:36,911 INFO L495 AbstractCegarLoop]: Abstraction has 4050 states and 5616 transitions. [2022-07-14 03:38:36,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-14 03:38:36,911 INFO L276 IsEmpty]: Start isEmpty. Operand 4050 states and 5616 transitions. [2022-07-14 03:38:36,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-07-14 03:38:36,918 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:38:36,918 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:38:36,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-14 03:38:36,918 INFO L420 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)] === [2022-07-14 03:38:36,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:38:36,919 INFO L85 PathProgramCache]: Analyzing trace with hash -135921463, now seen corresponding path program 1 times [2022-07-14 03:38:36,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:38:36,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694367986] [2022-07-14 03:38:36,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:38:36,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:38:37,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:38:37,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:38:37,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 03:38:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 03:38:37,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 03:38:37,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:38:37,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-14 03:38:37,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 03:38:37,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 03:38:37,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 03:38:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:38:37,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 03:38:37,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 03:38:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 03:38:37,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-14 03:38:37,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:38:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 03:38:37,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 03:38:37,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-14 03:38:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 03:38:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-14 03:38:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-14 03:38:37,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-14 03:38:37,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-14 03:38:37,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-14 03:38:37,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 03:38:37,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:38:37,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-14 03:38:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-14 03:38:37,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-14 03:38:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:38:37,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 03:38:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 03:38:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-14 03:38:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:38:37,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 03:38:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:38:37,355 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-07-14 03:38:37,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:38:37,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694367986] [2022-07-14 03:38:37,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694367986] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:38:37,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:38:37,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 03:38:37,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515331771] [2022-07-14 03:38:37,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:38:37,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 03:38:37,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:38:37,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 03:38:37,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:38:37,359 INFO L87 Difference]: Start difference. First operand 4050 states and 5616 transitions. Second operand has 10 states, 9 states have (on average 14.11111111111111) internal successors, (127), 6 states have internal predecessors, (127), 3 states have call successors, (39), 4 states have call predecessors, (39), 3 states have return successors, (33), 4 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-14 03:38:45,925 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []