./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.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 e8c1c69a9209f2e1e672b4301b3aeef542d8617026686dc57b4ac44c2de1cbfb --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 17:04:36,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 17:04:36,661 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 17:04:36,698 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 17:04:36,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 17:04:36,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 17:04:36,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 17:04:36,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 17:04:36,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 17:04:36,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 17:04:36,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 17:04:36,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 17:04:36,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 17:04:36,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 17:04:36,708 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 17:04:36,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 17:04:36,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 17:04:36,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 17:04:36,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 17:04:36,721 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 17:04:36,722 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 17:04:36,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 17:04:36,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 17:04:36,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 17:04:36,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 17:04:36,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 17:04:36,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 17:04:36,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 17:04:36,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 17:04:36,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 17:04:36,732 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 17:04:36,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 17:04:36,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 17:04:36,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 17:04:36,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 17:04:36,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 17:04:36,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 17:04:36,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 17:04:36,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 17:04:36,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 17:04:36,736 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 17:04:36,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 17:04:36,738 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 17:04:36,762 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 17:04:36,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 17:04:36,763 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 17:04:36,763 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 17:04:36,764 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 17:04:36,764 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 17:04:36,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 17:04:36,765 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 17:04:36,765 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 17:04:36,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 17:04:36,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 17:04:36,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 17:04:36,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 17:04:36,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 17:04:36,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 17:04:36,766 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 17:04:36,767 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 17:04:36,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 17:04:36,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 17:04:36,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 17:04:36,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 17:04:36,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 17:04:36,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 17:04:36,768 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 17:04:36,768 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 17:04:36,768 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 17:04:36,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 17:04:36,768 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 17:04:36,769 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 17:04:36,769 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 17:04:36,769 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8c1c69a9209f2e1e672b4301b3aeef542d8617026686dc57b4ac44c2de1cbfb [2022-07-12 17:04:36,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 17:04:36,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 17:04:36,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 17:04:36,944 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 17:04:36,945 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 17:04:36,945 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i [2022-07-12 17:04:36,989 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a443da39/c602a2aa101546769d201f0207e8372d/FLAGd51897aa4 [2022-07-12 17:04:37,679 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 17:04:37,680 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i [2022-07-12 17:04:37,725 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a443da39/c602a2aa101546769d201f0207e8372d/FLAGd51897aa4 [2022-07-12 17:04:38,028 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a443da39/c602a2aa101546769d201f0207e8372d [2022-07-12 17:04:38,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 17:04:38,031 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 17:04:38,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 17:04:38,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 17:04:38,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 17:04:38,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 05:04:38" (1/1) ... [2022-07-12 17:04:38,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bff073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:04:38, skipping insertion in model container [2022-07-12 17:04:38,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 05:04:38" (1/1) ... [2022-07-12 17:04:38,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 17:04:38,156 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 17:04:40,814 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[489935,489948] [2022-07-12 17:04:40,818 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490080,490093] [2022-07-12 17:04:40,819 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490226,490239] [2022-07-12 17:04:40,820 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490391,490404] [2022-07-12 17:04:40,820 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490549,490562] [2022-07-12 17:04:40,821 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490707,490720] [2022-07-12 17:04:40,821 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490865,490878] [2022-07-12 17:04:40,824 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491025,491038] [2022-07-12 17:04:40,824 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491184,491197] [2022-07-12 17:04:40,825 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491323,491336] [2022-07-12 17:04:40,825 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491465,491478] [2022-07-12 17:04:40,825 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491614,491627] [2022-07-12 17:04:40,826 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491753,491766] [2022-07-12 17:04:40,826 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491908,491921] [2022-07-12 17:04:40,826 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492068,492081] [2022-07-12 17:04:40,826 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492219,492232] [2022-07-12 17:04:40,829 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492370,492383] [2022-07-12 17:04:40,829 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492522,492535] [2022-07-12 17:04:40,830 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492671,492684] [2022-07-12 17:04:40,830 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492819,492832] [2022-07-12 17:04:40,831 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492976,492989] [2022-07-12 17:04:40,831 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493125,493138] [2022-07-12 17:04:40,831 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493281,493294] [2022-07-12 17:04:40,844 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493434,493447] [2022-07-12 17:04:40,845 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493580,493593] [2022-07-12 17:04:40,846 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493723,493736] [2022-07-12 17:04:40,846 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493875,493888] [2022-07-12 17:04:40,846 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494021,494034] [2022-07-12 17:04:40,847 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494166,494179] [2022-07-12 17:04:40,847 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494320,494333] [2022-07-12 17:04:40,848 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494471,494484] [2022-07-12 17:04:40,848 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494626,494639] [2022-07-12 17:04:40,849 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494778,494791] [2022-07-12 17:04:40,849 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494933,494946] [2022-07-12 17:04:40,849 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495097,495110] [2022-07-12 17:04:40,850 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495253,495266] [2022-07-12 17:04:40,850 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495417,495430] [2022-07-12 17:04:40,850 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495559,495572] [2022-07-12 17:04:40,851 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495717,495730] [2022-07-12 17:04:40,851 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495884,495897] [2022-07-12 17:04:40,851 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496043,496056] [2022-07-12 17:04:40,851 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496202,496215] [2022-07-12 17:04:40,852 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496351,496364] [2022-07-12 17:04:40,852 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496498,496511] [2022-07-12 17:04:40,852 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496637,496650] [2022-07-12 17:04:40,852 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496800,496813] [2022-07-12 17:04:40,853 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496966,496979] [2022-07-12 17:04:40,853 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497130,497143] [2022-07-12 17:04:40,854 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497295,497308] [2022-07-12 17:04:40,854 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497460,497473] [2022-07-12 17:04:40,854 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497626,497639] [2022-07-12 17:04:40,855 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497791,497804] [2022-07-12 17:04:40,855 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497958,497971] [2022-07-12 17:04:40,855 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498118,498131] [2022-07-12 17:04:40,855 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498280,498293] [2022-07-12 17:04:40,856 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498439,498452] [2022-07-12 17:04:40,856 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498585,498598] [2022-07-12 17:04:40,856 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498728,498741] [2022-07-12 17:04:40,856 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498872,498885] [2022-07-12 17:04:40,857 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499015,499028] [2022-07-12 17:04:40,857 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499159,499172] [2022-07-12 17:04:40,858 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499300,499313] [2022-07-12 17:04:40,858 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499438,499451] [2022-07-12 17:04:40,858 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499596,499609] [2022-07-12 17:04:40,858 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499755,499768] [2022-07-12 17:04:40,859 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499911,499924] [2022-07-12 17:04:40,859 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500060,500073] [2022-07-12 17:04:40,859 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500212,500225] [2022-07-12 17:04:40,859 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500363,500376] [2022-07-12 17:04:40,860 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500512,500525] [2022-07-12 17:04:40,860 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500664,500677] [2022-07-12 17:04:40,860 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500812,500825] [2022-07-12 17:04:40,861 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500965,500978] [2022-07-12 17:04:40,861 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501116,501129] [2022-07-12 17:04:40,861 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501266,501279] [2022-07-12 17:04:40,861 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501413,501426] [2022-07-12 17:04:40,862 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501564,501577] [2022-07-12 17:04:40,862 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501715,501728] [2022-07-12 17:04:40,863 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501863,501876] [2022-07-12 17:04:40,863 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502029,502042] [2022-07-12 17:04:40,863 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502198,502211] [2022-07-12 17:04:40,864 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502365,502378] [2022-07-12 17:04:40,864 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502533,502546] [2022-07-12 17:04:40,864 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502683,502696] [2022-07-12 17:04:40,864 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502830,502843] [2022-07-12 17:04:40,865 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502991,503004] [2022-07-12 17:04:40,865 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[503161,503174] [2022-07-12 17:04:40,865 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[503323,503336] [2022-07-12 17:04:40,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 17:04:40,918 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 17:04:41,209 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[489935,489948] [2022-07-12 17:04:41,211 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490080,490093] [2022-07-12 17:04:41,214 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490226,490239] [2022-07-12 17:04:41,214 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490391,490404] [2022-07-12 17:04:41,214 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490549,490562] [2022-07-12 17:04:41,215 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490707,490720] [2022-07-12 17:04:41,215 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490865,490878] [2022-07-12 17:04:41,216 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491025,491038] [2022-07-12 17:04:41,216 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491184,491197] [2022-07-12 17:04:41,217 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491323,491336] [2022-07-12 17:04:41,217 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491465,491478] [2022-07-12 17:04:41,217 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491614,491627] [2022-07-12 17:04:41,217 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491753,491766] [2022-07-12 17:04:41,218 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491908,491921] [2022-07-12 17:04:41,218 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492068,492081] [2022-07-12 17:04:41,218 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492219,492232] [2022-07-12 17:04:41,219 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492370,492383] [2022-07-12 17:04:41,219 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492522,492535] [2022-07-12 17:04:41,219 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492671,492684] [2022-07-12 17:04:41,220 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492819,492832] [2022-07-12 17:04:41,220 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492976,492989] [2022-07-12 17:04:41,220 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493125,493138] [2022-07-12 17:04:41,223 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493281,493294] [2022-07-12 17:04:41,224 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493434,493447] [2022-07-12 17:04:41,224 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493580,493593] [2022-07-12 17:04:41,224 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493723,493736] [2022-07-12 17:04:41,249 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493875,493888] [2022-07-12 17:04:41,250 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494021,494034] [2022-07-12 17:04:41,250 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494166,494179] [2022-07-12 17:04:41,251 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494320,494333] [2022-07-12 17:04:41,251 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494471,494484] [2022-07-12 17:04:41,251 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494626,494639] [2022-07-12 17:04:41,251 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494778,494791] [2022-07-12 17:04:41,251 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494933,494946] [2022-07-12 17:04:41,252 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495097,495110] [2022-07-12 17:04:41,252 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495253,495266] [2022-07-12 17:04:41,252 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495417,495430] [2022-07-12 17:04:41,252 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495559,495572] [2022-07-12 17:04:41,252 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495717,495730] [2022-07-12 17:04:41,252 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495884,495897] [2022-07-12 17:04:41,253 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496043,496056] [2022-07-12 17:04:41,253 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496202,496215] [2022-07-12 17:04:41,253 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496351,496364] [2022-07-12 17:04:41,253 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496498,496511] [2022-07-12 17:04:41,253 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496637,496650] [2022-07-12 17:04:41,253 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496800,496813] [2022-07-12 17:04:41,254 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496966,496979] [2022-07-12 17:04:41,254 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497130,497143] [2022-07-12 17:04:41,254 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497295,497308] [2022-07-12 17:04:41,254 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497460,497473] [2022-07-12 17:04:41,254 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497626,497639] [2022-07-12 17:04:41,254 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497791,497804] [2022-07-12 17:04:41,255 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497958,497971] [2022-07-12 17:04:41,255 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498118,498131] [2022-07-12 17:04:41,255 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498280,498293] [2022-07-12 17:04:41,255 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498439,498452] [2022-07-12 17:04:41,255 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498585,498598] [2022-07-12 17:04:41,256 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498728,498741] [2022-07-12 17:04:41,256 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498872,498885] [2022-07-12 17:04:41,256 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499015,499028] [2022-07-12 17:04:41,256 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499159,499172] [2022-07-12 17:04:41,257 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499300,499313] [2022-07-12 17:04:41,257 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499438,499451] [2022-07-12 17:04:41,257 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499596,499609] [2022-07-12 17:04:41,257 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499755,499768] [2022-07-12 17:04:41,260 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499911,499924] [2022-07-12 17:04:41,261 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500060,500073] [2022-07-12 17:04:41,262 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500212,500225] [2022-07-12 17:04:41,262 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500363,500376] [2022-07-12 17:04:41,262 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500512,500525] [2022-07-12 17:04:41,262 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500664,500677] [2022-07-12 17:04:41,263 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500812,500825] [2022-07-12 17:04:41,265 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500965,500978] [2022-07-12 17:04:41,265 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501116,501129] [2022-07-12 17:04:41,266 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501266,501279] [2022-07-12 17:04:41,266 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501413,501426] [2022-07-12 17:04:41,266 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501564,501577] [2022-07-12 17:04:41,266 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501715,501728] [2022-07-12 17:04:41,267 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501863,501876] [2022-07-12 17:04:41,267 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502029,502042] [2022-07-12 17:04:41,268 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502198,502211] [2022-07-12 17:04:41,268 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502365,502378] [2022-07-12 17:04:41,269 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502533,502546] [2022-07-12 17:04:41,269 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502683,502696] [2022-07-12 17:04:41,269 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502830,502843] [2022-07-12 17:04:41,269 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502991,503004] [2022-07-12 17:04:41,269 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[503161,503174] [2022-07-12 17:04:41,270 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-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[503323,503336] [2022-07-12 17:04:41,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 17:04:41,448 INFO L208 MainTranslator]: Completed translation [2022-07-12 17:04:41,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:04:41 WrapperNode [2022-07-12 17:04:41,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 17:04:41,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 17:04:41,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 17:04:41,450 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 17:04:41,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:04:41" (1/1) ... [2022-07-12 17:04:41,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:04:41" (1/1) ... [2022-07-12 17:04:41,710 INFO L137 Inliner]: procedures = 776, calls = 2915, calls flagged for inlining = 349, calls inlined = 276, statements flattened = 7326 [2022-07-12 17:04:41,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 17:04:41,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 17:04:41,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 17:04:41,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 17:04:41,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:04:41" (1/1) ... [2022-07-12 17:04:41,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:04:41" (1/1) ... [2022-07-12 17:04:41,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:04:41" (1/1) ... [2022-07-12 17:04:41,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:04:41" (1/1) ... [2022-07-12 17:04:41,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:04:41" (1/1) ... [2022-07-12 17:04:41,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:04:41" (1/1) ... [2022-07-12 17:04:41,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:04:41" (1/1) ... [2022-07-12 17:04:41,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 17:04:41,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 17:04:41,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 17:04:41,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 17:04:41,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:04:41" (1/1) ... [2022-07-12 17:04:41,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 17:04:41,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 17:04:41,940 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 17:04:41,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 17:04:41,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2022-07-12 17:04:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2022-07-12 17:04:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-12 17:04:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-07-12 17:04:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-07-12 17:04:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-07-12 17:04:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-07-12 17:04:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2022-07-12 17:04:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2022-07-12 17:04:41,970 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2022-07-12 17:04:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2022-07-12 17:04:41,970 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 17:04:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 17:04:41,970 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_destroy [2022-07-12 17:04:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_destroy [2022-07-12 17:04:41,970 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2022-07-12 17:04:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2022-07-12 17:04:41,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-07-12 17:04:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-07-12 17:04:41,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 17:04:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 17:04:41,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_lib_idr__double_init [2022-07-12 17:04:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_lib_idr__double_init [2022-07-12 17:04:41,971 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-07-12 17:04:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-07-12 17:04:41,971 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-07-12 17:04:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-07-12 17:04:41,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-07-12 17:04:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-07-12 17:04:41,972 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-07-12 17:04:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-07-12 17:04:41,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-12 17:04:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-12 17:04:41,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-07-12 17:04:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-07-12 17:04:41,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 17:04:41,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-07-12 17:04:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-07-12 17:04:41,973 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-07-12 17:04:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-07-12 17:04:41,973 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2022-07-12 17:04:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2022-07-12 17:04:41,973 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-12 17:04:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-12 17:04:41,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-07-12 17:04:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-07-12 17:04:41,973 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2022-07-12 17:04:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2022-07-12 17:04:41,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 17:04:41,974 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-12 17:04:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-12 17:04:41,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 17:04:41,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_lib_idr__not_initialized [2022-07-12 17:04:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_lib_idr__not_initialized [2022-07-12 17:04:41,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_read_unlock [2022-07-12 17:04:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_read_unlock [2022-07-12 17:04:41,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 17:04:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 17:04:41,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 17:04:41,975 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 17:04:41,975 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-07-12 17:04:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-07-12 17:04:41,975 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-07-12 17:04:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-07-12 17:04:41,976 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-07-12 17:04:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-07-12 17:04:41,976 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-07-12 17:04:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-07-12 17:04:41,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-12 17:04:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-12 17:04:41,976 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2022-07-12 17:04:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2022-07-12 17:04:41,977 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2022-07-12 17:04:41,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2022-07-12 17:04:41,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_198 [2022-07-12 17:04:41,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_198 [2022-07-12 17:04:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 17:04:41,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 17:04:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-12 17:04:41,979 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-12 17:04:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 17:04:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-07-12 17:04:41,981 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-07-12 17:04:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2022-07-12 17:04:41,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2022-07-12 17:04:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-07-12 17:04:41,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-07-12 17:04:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-12 17:04:41,982 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-12 17:04:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2022-07-12 17:04:41,982 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2022-07-12 17:04:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 17:04:41,982 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 17:04:41,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-07-12 17:04:41,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-07-12 17:04:41,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-07-12 17:04:41,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-07-12 17:04:41,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 17:04:41,983 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 17:04:41,983 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 17:04:41,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-07-12 17:04:41,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-07-12 17:04:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_base_class__double_registration [2022-07-12 17:04:41,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_base_class__double_registration [2022-07-12 17:04:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 17:04:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_send_frame [2022-07-12 17:04:41,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_send_frame [2022-07-12 17:04:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_error [2022-07-12 17:04:41,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_error [2022-07-12 17:04:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2022-07-12 17:04:41,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2022-07-12 17:04:41,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_module_put [2022-07-12 17:04:41,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_module_put [2022-07-12 17:04:41,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_idr_alloc_p [2022-07-12 17:04:41,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_idr_alloc_p [2022-07-12 17:04:41,985 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 17:04:41,985 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 17:04:41,985 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2022-07-12 17:04:41,985 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2022-07-12 17:04:41,985 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2022-07-12 17:04:41,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2022-07-12 17:04:41,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-12 17:04:41,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-12 17:04:41,986 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_dev_init [2022-07-12 17:04:41,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_dev_init [2022-07-12 17:04:41,986 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-12 17:04:41,986 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-12 17:04:41,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-07-12 17:04:41,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-07-12 17:04:41,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-07-12 17:04:41,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-07-12 17:04:41,987 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2022-07-12 17:04:41,987 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2022-07-12 17:04:41,987 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2022-07-12 17:04:41,987 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2022-07-12 17:04:41,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-07-12 17:04:41,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-07-12 17:04:41,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 17:04:41,988 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-12 17:04:41,988 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-12 17:04:41,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 17:04:41,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 17:04:41,988 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2022-07-12 17:04:41,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2022-07-12 17:04:41,988 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-07-12 17:04:41,988 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-07-12 17:04:41,988 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-12 17:04:41,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-12 17:04:41,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_all_ppp_mutex_of_ppp_net [2022-07-12 17:04:41,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_all_ppp_mutex_of_ppp_net [2022-07-12 17:04:41,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_usb_gadget__chrdev_registration_with_usb_gadget [2022-07-12 17:04:41,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_usb_gadget__chrdev_registration_with_usb_gadget [2022-07-12 17:04:41,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_usb_gadget__class_registration_with_usb_gadget [2022-07-12 17:04:41,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_usb_gadget__class_registration_with_usb_gadget [2022-07-12 17:04:41,989 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2022-07-12 17:04:41,989 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2022-07-12 17:04:41,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-07-12 17:04:41,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-07-12 17:04:41,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 17:04:41,990 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 17:04:41,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_159 [2022-07-12 17:04:41,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_159 [2022-07-12 17:04:41,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 17:04:41,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 17:04:41,990 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2022-07-12 17:04:41,990 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2022-07-12 17:04:41,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-07-12 17:04:41,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-07-12 17:04:41,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-07-12 17:04:41,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-07-12 17:04:41,991 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 17:04:41,991 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 17:04:41,991 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2022-07-12 17:04:41,991 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2022-07-12 17:04:41,991 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_create [2022-07-12 17:04:41,991 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_create [2022-07-12 17:04:41,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-12 17:04:41,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-12 17:04:41,991 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-07-12 17:04:41,992 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-07-12 17:04:41,992 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-12 17:04:41,992 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-12 17:04:41,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 17:04:41,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 17:04:41,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-07-12 17:04:41,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-07-12 17:04:41,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 17:04:41,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_write_unlock [2022-07-12 17:04:41,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_write_unlock [2022-07-12 17:04:41,992 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-12 17:04:41,993 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-12 17:04:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2022-07-12 17:04:41,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2022-07-12 17:04:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 17:04:41,993 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 17:04:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_197 [2022-07-12 17:04:41,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_197 [2022-07-12 17:04:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-12 17:04:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-12 17:04:41,994 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-12 17:04:41,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_153 [2022-07-12 17:04:41,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_153 [2022-07-12 17:04:41,995 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-12 17:04:41,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-12 17:04:41,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-12 17:04:41,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-07-12 17:04:41,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-07-12 17:04:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-07-12 17:04:41,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-07-12 17:04:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-07-12 17:04:41,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-07-12 17:04:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2022-07-12 17:04:41,997 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2022-07-12 17:04:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_do_recv [2022-07-12 17:04:41,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_do_recv [2022-07-12 17:04:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_166 [2022-07-12 17:04:41,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_166 [2022-07-12 17:04:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_lib_idr__more_at_exit [2022-07-12 17:04:41,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_lib_idr__more_at_exit [2022-07-12 17:04:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-12 17:04:41,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-12 17:04:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2022-07-12 17:04:41,997 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2022-07-12 17:04:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_131 [2022-07-12 17:04:41,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_131 [2022-07-12 17:04:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_132 [2022-07-12 17:04:41,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_132 [2022-07-12 17:04:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_fs_char_dev__double_registration [2022-07-12 17:04:41,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_fs_char_dev__double_registration [2022-07-12 17:04:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-07-12 17:04:41,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-07-12 17:04:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-07-12 17:04:41,998 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-07-12 17:04:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_ppp_mutex [2022-07-12 17:04:41,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_ppp_mutex [2022-07-12 17:04:41,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_lib_idr__destroyed_before_usage [2022-07-12 17:04:41,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_lib_idr__destroyed_before_usage [2022-07-12 17:04:42,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_write_lock [2022-07-12 17:04:42,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_write_lock [2022-07-12 17:04:42,001 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_init_net [2022-07-12 17:04:42,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_init_net [2022-07-12 17:04:42,001 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 17:04:42,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 17:04:42,002 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-12 17:04:42,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-12 17:04:42,002 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-12 17:04:42,002 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-12 17:04:42,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-07-12 17:04:42,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-07-12 17:04:42,002 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2022-07-12 17:04:42,002 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2022-07-12 17:04:42,002 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2022-07-12 17:04:42,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2022-07-12 17:04:42,002 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-07-12 17:04:42,003 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-07-12 17:04:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-07-12 17:04:42,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-07-12 17:04:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-07-12 17:04:42,003 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-07-12 17:04:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 17:04:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 17:04:42,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 17:04:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_setup [2022-07-12 17:04:42,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_setup [2022-07-12 17:04:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 17:04:42,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 17:04:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-12 17:04:42,004 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-12 17:04:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2022-07-12 17:04:42,004 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2022-07-12 17:04:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 17:04:42,004 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 17:04:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2022-07-12 17:04:42,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2022-07-12 17:04:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-12 17:04:42,005 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-12 17:04:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_all_ppp_mutex_of_ppp_net [2022-07-12 17:04:42,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_all_ppp_mutex_of_ppp_net [2022-07-12 17:04:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 17:04:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-12 17:04:42,005 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-12 17:04:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_167 [2022-07-12 17:04:42,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_167 [2022-07-12 17:04:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_read_lock [2022-07-12 17:04:42,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_read_lock [2022-07-12 17:04:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-12 17:04:42,006 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-12 17:04:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-12 17:04:42,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-12 17:04:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-07-12 17:04:42,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-07-12 17:04:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_154 [2022-07-12 17:04:42,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_154 [2022-07-12 17:04:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-12 17:04:42,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-12 17:04:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2022-07-12 17:04:42,007 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2022-07-12 17:04:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2022-07-12 17:04:42,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2022-07-12 17:04:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_ppp_mutex [2022-07-12 17:04:42,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_ppp_mutex [2022-07-12 17:04:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-07-12 17:04:42,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-07-12 17:04:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 17:04:42,007 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 17:04:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_133 [2022-07-12 17:04:42,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_133 [2022-07-12 17:04:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2022-07-12 17:04:42,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2022-07-12 17:04:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_134 [2022-07-12 17:04:42,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_134 [2022-07-12 17:04:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2022-07-12 17:04:42,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2022-07-12 17:04:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2022-07-12 17:04:42,008 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2022-07-12 17:04:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-07-12 17:04:42,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-07-12 17:04:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 17:04:42,009 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 17:04:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2022-07-12 17:04:42,009 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2022-07-12 17:04:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_nonmp_frame [2022-07-12 17:04:42,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_nonmp_frame [2022-07-12 17:04:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-07-12 17:04:42,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-07-12 17:04:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-07-12 17:04:42,009 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-07-12 17:04:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-07-12 17:04:42,010 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-07-12 17:04:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-07-12 17:04:42,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-07-12 17:04:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-12 17:04:42,010 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-12 17:04:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-12 17:04:42,010 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-12 17:04:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2022-07-12 17:04:42,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2022-07-12 17:04:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-12 17:04:42,011 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-12 17:04:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2022-07-12 17:04:42,011 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2022-07-12 17:04:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-12 17:04:42,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-12 17:04:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-07-12 17:04:42,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-07-12 17:04:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_net_channel [2022-07-12 17:04:42,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_net_channel [2022-07-12 17:04:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_explode [2022-07-12 17:04:42,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_explode [2022-07-12 17:04:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-12 17:04:42,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-12 17:04:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_poll [2022-07-12 17:04:42,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_poll [2022-07-12 17:04:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 17:04:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-12 17:04:42,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-12 17:04:42,769 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 17:04:42,771 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 17:04:42,913 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 17:04:45,682 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 17:04:45,701 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 17:04:45,702 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2022-07-12 17:04:45,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 05:04:45 BoogieIcfgContainer [2022-07-12 17:04:45,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 17:04:45,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 17:04:45,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 17:04:45,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 17:04:45,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 05:04:38" (1/3) ... [2022-07-12 17:04:45,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2309d9b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 05:04:45, skipping insertion in model container [2022-07-12 17:04:45,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:04:41" (2/3) ... [2022-07-12 17:04:45,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2309d9b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 05:04:45, skipping insertion in model container [2022-07-12 17:04:45,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 05:04:45" (3/3) ... [2022-07-12 17:04:45,711 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i [2022-07-12 17:04:45,720 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 17:04:45,720 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2022-07-12 17:04:45,798 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 17:04:45,802 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@29444013, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@b03978f [2022-07-12 17:04:45,802 INFO L358 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2022-07-12 17:04:45,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 2688 states, 1812 states have (on average 1.3344370860927153) internal successors, (2418), 1931 states have internal predecessors, (2418), 665 states have call successors, (665), 169 states have call predecessors, (665), 168 states have return successors, (659), 636 states have call predecessors, (659), 659 states have call successors, (659) [2022-07-12 17:04:45,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-12 17:04:45,815 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 17:04:45,816 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 17:04:45,816 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_fs_char_dev__double_registrationErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-07-12 17:04:45,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 17:04:45,820 INFO L85 PathProgramCache]: Analyzing trace with hash -557576269, now seen corresponding path program 1 times [2022-07-12 17:04:45,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 17:04:45,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783123486] [2022-07-12 17:04:45,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 17:04:45,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 17:04:46,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:46,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 17:04:46,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:46,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 17:04:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:46,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:04:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:46,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 17:04:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:46,248 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-12 17:04:46,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 17:04:46,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783123486] [2022-07-12 17:04:46,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783123486] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 17:04:46,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 17:04:46,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 17:04:46,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766442308] [2022-07-12 17:04:46,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 17:04:46,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 17:04:46,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 17:04:46,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 17:04:46,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 17:04:46,275 INFO L87 Difference]: Start difference. First operand has 2688 states, 1812 states have (on average 1.3344370860927153) internal successors, (2418), 1931 states have internal predecessors, (2418), 665 states have call successors, (665), 169 states have call predecessors, (665), 168 states have return successors, (659), 636 states have call predecessors, (659), 659 states have call successors, (659) Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-12 17:04:46,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 17:04:46,606 INFO L93 Difference]: Finished difference Result 7914 states and 11535 transitions. [2022-07-12 17:04:46,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 17:04:46,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2022-07-12 17:04:46,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 17:04:46,650 INFO L225 Difference]: With dead ends: 7914 [2022-07-12 17:04:46,650 INFO L226 Difference]: Without dead ends: 5221 [2022-07-12 17:04:46,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 17:04:46,678 INFO L413 NwaCegarLoop]: 6719 mSDtfsCounter, 3604 mSDsluCounter, 16942 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3605 SdHoareTripleChecker+Valid, 23661 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 17:04:46,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3605 Valid, 23661 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 17:04:46,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5221 states. [2022-07-12 17:04:46,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5221 to 5128. [2022-07-12 17:04:46,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5128 states, 3478 states have (on average 1.288671650373778) internal successors, (4482), 3665 states have internal predecessors, (4482), 1275 states have call successors, (1275), 333 states have call predecessors, (1275), 332 states have return successors, (1273), 1224 states have call predecessors, (1273), 1273 states have call successors, (1273) [2022-07-12 17:04:46,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5128 states to 5128 states and 7030 transitions. [2022-07-12 17:04:46,916 INFO L78 Accepts]: Start accepts. Automaton has 5128 states and 7030 transitions. Word has length 34 [2022-07-12 17:04:46,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 17:04:46,916 INFO L495 AbstractCegarLoop]: Abstraction has 5128 states and 7030 transitions. [2022-07-12 17:04:46,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-12 17:04:46,916 INFO L276 IsEmpty]: Start isEmpty. Operand 5128 states and 7030 transitions. [2022-07-12 17:04:46,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-12 17:04:46,918 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 17:04:46,918 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 17:04:46,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 17:04:46,919 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_usb_gadget__chrdev_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-07-12 17:04:46,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 17:04:46,919 INFO L85 PathProgramCache]: Analyzing trace with hash -969627705, now seen corresponding path program 1 times [2022-07-12 17:04:46,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 17:04:46,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102125831] [2022-07-12 17:04:46,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 17:04:46,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 17:04:46,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:47,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 17:04:47,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:47,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 17:04:47,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:47,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:04:47,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:47,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 17:04:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:47,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 17:04:47,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:47,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:04:47,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:47,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 17:04:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:47,085 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-12 17:04:47,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 17:04:47,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102125831] [2022-07-12 17:04:47,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102125831] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 17:04:47,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 17:04:47,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 17:04:47,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756134539] [2022-07-12 17:04:47,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 17:04:47,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 17:04:47,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 17:04:47,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 17:04:47,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 17:04:47,087 INFO L87 Difference]: Start difference. First operand 5128 states and 7030 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 17:04:47,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 17:04:47,217 INFO L93 Difference]: Finished difference Result 5128 states and 7030 transitions. [2022-07-12 17:04:47,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 17:04:47,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 53 [2022-07-12 17:04:47,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 17:04:47,240 INFO L225 Difference]: With dead ends: 5128 [2022-07-12 17:04:47,240 INFO L226 Difference]: Without dead ends: 5126 [2022-07-12 17:04:47,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 17:04:47,245 INFO L413 NwaCegarLoop]: 3591 mSDtfsCounter, 3584 mSDsluCounter, 7179 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3585 SdHoareTripleChecker+Valid, 10770 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 17:04:47,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3585 Valid, 10770 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 17:04:47,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5126 states. [2022-07-12 17:04:47,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5126 to 5126. [2022-07-12 17:04:47,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5126 states, 3477 states have (on average 1.288179465056083) internal successors, (4479), 3663 states have internal predecessors, (4479), 1275 states have call successors, (1275), 333 states have call predecessors, (1275), 332 states have return successors, (1273), 1224 states have call predecessors, (1273), 1273 states have call successors, (1273) [2022-07-12 17:04:47,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5126 states to 5126 states and 7027 transitions. [2022-07-12 17:04:47,429 INFO L78 Accepts]: Start accepts. Automaton has 5126 states and 7027 transitions. Word has length 53 [2022-07-12 17:04:47,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 17:04:47,429 INFO L495 AbstractCegarLoop]: Abstraction has 5126 states and 7027 transitions. [2022-07-12 17:04:47,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 17:04:47,430 INFO L276 IsEmpty]: Start isEmpty. Operand 5126 states and 7027 transitions. [2022-07-12 17:04:47,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-12 17:04:47,431 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 17:04:47,431 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 17:04:47,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 17:04:47,431 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-07-12 17:04:47,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 17:04:47,432 INFO L85 PathProgramCache]: Analyzing trace with hash -66606166, now seen corresponding path program 1 times [2022-07-12 17:04:47,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 17:04:47,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283005719] [2022-07-12 17:04:47,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 17:04:47,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 17:04:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:47,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 17:04:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:47,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 17:04:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:47,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 17:04:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:47,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 17:04:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:47,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:04:47,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:47,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 17:04:47,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:47,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 17:04:47,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:47,571 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 17:04:47,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 17:04:47,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283005719] [2022-07-12 17:04:47,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283005719] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 17:04:47,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 17:04:47,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 17:04:47,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515998848] [2022-07-12 17:04:47,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 17:04:47,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 17:04:47,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 17:04:47,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 17:04:47,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 17:04:47,573 INFO L87 Difference]: Start difference. First operand 5126 states and 7027 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 17:04:53,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 17:04:53,921 INFO L93 Difference]: Finished difference Result 5484 states and 7555 transitions. [2022-07-12 17:04:53,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 17:04:53,922 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 52 [2022-07-12 17:04:53,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 17:04:53,944 INFO L225 Difference]: With dead ends: 5484 [2022-07-12 17:04:53,945 INFO L226 Difference]: Without dead ends: 5482 [2022-07-12 17:04:53,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-07-12 17:04:53,947 INFO L413 NwaCegarLoop]: 3140 mSDtfsCounter, 6728 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 4394 mSolverCounterSat, 3595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6847 SdHoareTripleChecker+Valid, 3978 SdHoareTripleChecker+Invalid, 7989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3595 IncrementalHoareTripleChecker+Valid, 4394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-07-12 17:04:53,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6847 Valid, 3978 Invalid, 7989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3595 Valid, 4394 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-07-12 17:04:53,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5482 states. [2022-07-12 17:04:54,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5482 to 5124. [2022-07-12 17:04:54,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5124 states, 3476 states have (on average 1.287686996547756) internal successors, (4476), 3661 states have internal predecessors, (4476), 1275 states have call successors, (1275), 333 states have call predecessors, (1275), 332 states have return successors, (1273), 1224 states have call predecessors, (1273), 1273 states have call successors, (1273) [2022-07-12 17:04:54,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5124 states to 5124 states and 7024 transitions. [2022-07-12 17:04:54,159 INFO L78 Accepts]: Start accepts. Automaton has 5124 states and 7024 transitions. Word has length 52 [2022-07-12 17:04:54,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 17:04:54,161 INFO L495 AbstractCegarLoop]: Abstraction has 5124 states and 7024 transitions. [2022-07-12 17:04:54,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 17:04:54,162 INFO L276 IsEmpty]: Start isEmpty. Operand 5124 states and 7024 transitions. [2022-07-12 17:04:54,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-12 17:04:54,167 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 17:04:54,167 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 17:04:54,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 17:04:54,168 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-07-12 17:04:54,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 17:04:54,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1401725819, now seen corresponding path program 1 times [2022-07-12 17:04:54,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 17:04:54,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658696900] [2022-07-12 17:04:54,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 17:04:54,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 17:04:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:54,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 17:04:54,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:54,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 17:04:54,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:54,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 17:04:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:54,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 17:04:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:54,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:04:54,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:54,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 17:04:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:54,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 17:04:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:54,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 17:04:54,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:04:54,398 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 17:04:54,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 17:04:54,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658696900] [2022-07-12 17:04:54,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658696900] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 17:04:54,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 17:04:54,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 17:04:54,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198755309] [2022-07-12 17:04:54,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 17:04:54,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 17:04:54,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 17:04:54,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 17:04:54,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 17:04:54,401 INFO L87 Difference]: Start difference. First operand 5124 states and 7024 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 17:04:59,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 17:04:59,816 INFO L93 Difference]: Finished difference Result 5482 states and 7552 transitions. [2022-07-12 17:04:59,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 17:04:59,817 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2022-07-12 17:04:59,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 17:04:59,838 INFO L225 Difference]: With dead ends: 5482 [2022-07-12 17:04:59,838 INFO L226 Difference]: Without dead ends: 5480 [2022-07-12 17:04:59,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-07-12 17:04:59,842 INFO L413 NwaCegarLoop]: 3153 mSDtfsCounter, 6706 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 4407 mSolverCounterSat, 3574 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6824 SdHoareTripleChecker+Valid, 3991 SdHoareTripleChecker+Invalid, 7981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3574 IncrementalHoareTripleChecker+Valid, 4407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-07-12 17:04:59,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6824 Valid, 3991 Invalid, 7981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3574 Valid, 4407 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-07-12 17:04:59,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5480 states. [2022-07-12 17:04:59,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5480 to 5122. [2022-07-12 17:05:00,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5122 states, 3475 states have (on average 1.2871942446043165) internal successors, (4473), 3659 states have internal predecessors, (4473), 1275 states have call successors, (1275), 333 states have call predecessors, (1275), 332 states have return successors, (1273), 1224 states have call predecessors, (1273), 1273 states have call successors, (1273) [2022-07-12 17:05:00,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5122 states to 5122 states and 7021 transitions. [2022-07-12 17:05:00,024 INFO L78 Accepts]: Start accepts. Automaton has 5122 states and 7021 transitions. Word has length 58 [2022-07-12 17:05:00,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 17:05:00,024 INFO L495 AbstractCegarLoop]: Abstraction has 5122 states and 7021 transitions. [2022-07-12 17:05:00,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 17:05:00,025 INFO L276 IsEmpty]: Start isEmpty. Operand 5122 states and 7021 transitions. [2022-07-12 17:05:00,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-12 17:05:00,026 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 17:05:00,026 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 17:05:00,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 17:05:00,027 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-07-12 17:05:00,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 17:05:00,027 INFO L85 PathProgramCache]: Analyzing trace with hash 69306552, now seen corresponding path program 1 times [2022-07-12 17:05:00,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 17:05:00,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402490211] [2022-07-12 17:05:00,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 17:05:00,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 17:05:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:00,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 17:05:00,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:00,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 17:05:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:00,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 17:05:00,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:00,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 17:05:00,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:00,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:05:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:00,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 17:05:00,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:00,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 17:05:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:00,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 17:05:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:00,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 17:05:00,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:00,244 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 17:05:00,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 17:05:00,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402490211] [2022-07-12 17:05:00,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402490211] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 17:05:00,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 17:05:00,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 17:05:00,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127119962] [2022-07-12 17:05:00,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 17:05:00,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 17:05:00,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 17:05:00,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 17:05:00,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 17:05:00,247 INFO L87 Difference]: Start difference. First operand 5122 states and 7021 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-12 17:05:05,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 17:05:05,718 INFO L93 Difference]: Finished difference Result 5480 states and 7549 transitions. [2022-07-12 17:05:05,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 17:05:05,718 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 64 [2022-07-12 17:05:05,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 17:05:05,735 INFO L225 Difference]: With dead ends: 5480 [2022-07-12 17:05:05,736 INFO L226 Difference]: Without dead ends: 5478 [2022-07-12 17:05:05,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-07-12 17:05:05,737 INFO L413 NwaCegarLoop]: 3114 mSDtfsCounter, 6758 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 4368 mSolverCounterSat, 3598 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6875 SdHoareTripleChecker+Valid, 3952 SdHoareTripleChecker+Invalid, 7966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3598 IncrementalHoareTripleChecker+Valid, 4368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-07-12 17:05:05,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6875 Valid, 3952 Invalid, 7966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3598 Valid, 4368 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-07-12 17:05:05,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5478 states. [2022-07-12 17:05:05,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5478 to 5120. [2022-07-12 17:05:05,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5120 states, 3474 states have (on average 1.2867012089810017) internal successors, (4470), 3657 states have internal predecessors, (4470), 1275 states have call successors, (1275), 333 states have call predecessors, (1275), 332 states have return successors, (1273), 1224 states have call predecessors, (1273), 1273 states have call successors, (1273) [2022-07-12 17:05:05,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5120 states to 5120 states and 7018 transitions. [2022-07-12 17:05:05,879 INFO L78 Accepts]: Start accepts. Automaton has 5120 states and 7018 transitions. Word has length 64 [2022-07-12 17:05:05,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 17:05:05,880 INFO L495 AbstractCegarLoop]: Abstraction has 5120 states and 7018 transitions. [2022-07-12 17:05:05,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-12 17:05:05,881 INFO L276 IsEmpty]: Start isEmpty. Operand 5120 states and 7018 transitions. [2022-07-12 17:05:05,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-12 17:05:05,882 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 17:05:05,882 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 17:05:05,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 17:05:05,882 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_unregister_chrdev_159Err0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-07-12 17:05:05,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 17:05:05,883 INFO L85 PathProgramCache]: Analyzing trace with hash -556843342, now seen corresponding path program 1 times [2022-07-12 17:05:05,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 17:05:05,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75970472] [2022-07-12 17:05:05,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 17:05:05,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 17:05:05,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:06,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 17:05:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:06,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 17:05:06,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:06,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 17:05:06,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:06,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 17:05:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:06,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:05:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:06,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 17:05:06,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:06,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 17:05:06,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:06,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 17:05:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:06,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 17:05:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:06,097 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 17:05:06,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 17:05:06,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75970472] [2022-07-12 17:05:06,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75970472] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 17:05:06,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 17:05:06,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 17:05:06,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194987523] [2022-07-12 17:05:06,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 17:05:06,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 17:05:06,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 17:05:06,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 17:05:06,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 17:05:06,099 INFO L87 Difference]: Start difference. First operand 5120 states and 7018 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-12 17:05:15,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 17:05:15,794 INFO L93 Difference]: Finished difference Result 6474 states and 8694 transitions. [2022-07-12 17:05:15,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 17:05:15,794 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 66 [2022-07-12 17:05:15,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 17:05:15,831 INFO L225 Difference]: With dead ends: 6474 [2022-07-12 17:05:15,836 INFO L226 Difference]: Without dead ends: 6265 [2022-07-12 17:05:15,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-07-12 17:05:15,841 INFO L413 NwaCegarLoop]: 3181 mSDtfsCounter, 5148 mSDsluCounter, 1844 mSDsCounter, 0 mSdLazyCounter, 14966 mSolverCounterSat, 2728 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5267 SdHoareTripleChecker+Valid, 5025 SdHoareTripleChecker+Invalid, 17694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2728 IncrementalHoareTripleChecker+Valid, 14966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-07-12 17:05:15,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5267 Valid, 5025 Invalid, 17694 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2728 Valid, 14966 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-07-12 17:05:15,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6265 states. [2022-07-12 17:05:16,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6265 to 5498. [2022-07-12 17:05:16,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5498 states, 3733 states have (on average 1.2777926600589338) internal successors, (4770), 3924 states have internal predecessors, (4770), 1357 states have call successors, (1357), 372 states have call predecessors, (1357), 369 states have return successors, (1355), 1299 states have call predecessors, (1355), 1355 states have call successors, (1355) [2022-07-12 17:05:16,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5498 states to 5498 states and 7482 transitions. [2022-07-12 17:05:16,062 INFO L78 Accepts]: Start accepts. Automaton has 5498 states and 7482 transitions. Word has length 66 [2022-07-12 17:05:16,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 17:05:16,062 INFO L495 AbstractCegarLoop]: Abstraction has 5498 states and 7482 transitions. [2022-07-12 17:05:16,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-12 17:05:16,063 INFO L276 IsEmpty]: Start isEmpty. Operand 5498 states and 7482 transitions. [2022-07-12 17:05:16,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-12 17:05:16,063 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 17:05:16,063 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 17:05:16,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 17:05:16,064 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-07-12 17:05:16,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 17:05:16,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1292387120, now seen corresponding path program 1 times [2022-07-12 17:05:16,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 17:05:16,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127308779] [2022-07-12 17:05:16,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 17:05:16,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 17:05:16,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:16,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 17:05:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:16,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 17:05:16,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:16,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 17:05:16,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:16,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 17:05:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:16,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:05:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:16,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 17:05:16,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:16,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 17:05:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:16,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 17:05:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:16,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 17:05:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:16,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 17:05:16,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:16,207 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 17:05:16,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 17:05:16,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127308779] [2022-07-12 17:05:16,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127308779] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 17:05:16,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 17:05:16,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 17:05:16,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351045562] [2022-07-12 17:05:16,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 17:05:16,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 17:05:16,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 17:05:16,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 17:05:16,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 17:05:16,209 INFO L87 Difference]: Start difference. First operand 5498 states and 7482 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-12 17:05:21,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 17:05:21,601 INFO L93 Difference]: Finished difference Result 5856 states and 8010 transitions. [2022-07-12 17:05:21,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 17:05:21,603 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 70 [2022-07-12 17:05:21,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 17:05:21,616 INFO L225 Difference]: With dead ends: 5856 [2022-07-12 17:05:21,616 INFO L226 Difference]: Without dead ends: 5854 [2022-07-12 17:05:21,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-07-12 17:05:21,618 INFO L413 NwaCegarLoop]: 3184 mSDtfsCounter, 6626 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 4438 mSolverCounterSat, 3571 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6742 SdHoareTripleChecker+Valid, 4022 SdHoareTripleChecker+Invalid, 8009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3571 IncrementalHoareTripleChecker+Valid, 4438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-07-12 17:05:21,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6742 Valid, 4022 Invalid, 8009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3571 Valid, 4438 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-07-12 17:05:21,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5854 states. [2022-07-12 17:05:21,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5854 to 5496. [2022-07-12 17:05:21,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5496 states, 3732 states have (on average 1.277331189710611) internal successors, (4767), 3922 states have internal predecessors, (4767), 1357 states have call successors, (1357), 372 states have call predecessors, (1357), 369 states have return successors, (1355), 1299 states have call predecessors, (1355), 1355 states have call successors, (1355) [2022-07-12 17:05:21,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5496 states to 5496 states and 7479 transitions. [2022-07-12 17:05:21,767 INFO L78 Accepts]: Start accepts. Automaton has 5496 states and 7479 transitions. Word has length 70 [2022-07-12 17:05:21,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 17:05:21,769 INFO L495 AbstractCegarLoop]: Abstraction has 5496 states and 7479 transitions. [2022-07-12 17:05:21,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-12 17:05:21,769 INFO L276 IsEmpty]: Start isEmpty. Operand 5496 states and 7479 transitions. [2022-07-12 17:05:21,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-12 17:05:21,770 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 17:05:21,770 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 17:05:21,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 17:05:21,770 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_unregister_chrdev_159Err0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-07-12 17:05:21,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 17:05:21,770 INFO L85 PathProgramCache]: Analyzing trace with hash 390811223, now seen corresponding path program 1 times [2022-07-12 17:05:21,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 17:05:21,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037681744] [2022-07-12 17:05:21,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 17:05:21,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 17:05:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:21,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 17:05:21,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:21,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 17:05:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:21,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 17:05:21,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:21,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 17:05:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:21,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:05:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:21,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 17:05:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:21,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 17:05:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:21,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 17:05:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:21,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 17:05:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:21,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 17:05:21,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:21,956 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-12 17:05:21,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 17:05:21,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037681744] [2022-07-12 17:05:21,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037681744] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 17:05:21,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 17:05:21,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 17:05:21,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489824975] [2022-07-12 17:05:21,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 17:05:21,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 17:05:21,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 17:05:21,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 17:05:21,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 17:05:21,959 INFO L87 Difference]: Start difference. First operand 5496 states and 7479 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-12 17:05:31,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 17:05:31,750 INFO L93 Difference]: Finished difference Result 6451 states and 8666 transitions. [2022-07-12 17:05:31,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 17:05:31,751 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 72 [2022-07-12 17:05:31,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 17:05:31,767 INFO L225 Difference]: With dead ends: 6451 [2022-07-12 17:05:31,767 INFO L226 Difference]: Without dead ends: 6244 [2022-07-12 17:05:31,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-07-12 17:05:31,769 INFO L413 NwaCegarLoop]: 3207 mSDtfsCounter, 5103 mSDsluCounter, 1847 mSDsCounter, 0 mSdLazyCounter, 15072 mSolverCounterSat, 2723 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5221 SdHoareTripleChecker+Valid, 5054 SdHoareTripleChecker+Invalid, 17795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2723 IncrementalHoareTripleChecker+Valid, 15072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-07-12 17:05:31,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5221 Valid, 5054 Invalid, 17795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2723 Valid, 15072 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2022-07-12 17:05:31,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6244 states. [2022-07-12 17:05:31,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6244 to 5496. [2022-07-12 17:05:31,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5496 states, 3732 states have (on average 1.2770632368703108) internal successors, (4766), 3922 states have internal predecessors, (4766), 1357 states have call successors, (1357), 372 states have call predecessors, (1357), 369 states have return successors, (1355), 1299 states have call predecessors, (1355), 1355 states have call successors, (1355) [2022-07-12 17:05:31,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5496 states to 5496 states and 7478 transitions. [2022-07-12 17:05:31,930 INFO L78 Accepts]: Start accepts. Automaton has 5496 states and 7478 transitions. Word has length 72 [2022-07-12 17:05:31,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 17:05:31,930 INFO L495 AbstractCegarLoop]: Abstraction has 5496 states and 7478 transitions. [2022-07-12 17:05:31,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-12 17:05:31,931 INFO L276 IsEmpty]: Start isEmpty. Operand 5496 states and 7478 transitions. [2022-07-12 17:05:31,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-12 17:05:31,935 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 17:05:31,936 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 17:05:31,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 17:05:31,936 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_unregister_chrdev_159Err0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-07-12 17:05:31,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 17:05:31,936 INFO L85 PathProgramCache]: Analyzing trace with hash -2129148711, now seen corresponding path program 1 times [2022-07-12 17:05:31,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 17:05:31,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564190998] [2022-07-12 17:05:31,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 17:05:31,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 17:05:31,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:32,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 17:05:32,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:32,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 17:05:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:32,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 17:05:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:32,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 17:05:32,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:32,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:05:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:32,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 17:05:32,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:32,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 17:05:32,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:32,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 17:05:32,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:32,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 17:05:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:32,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 17:05:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:32,326 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 17:05:32,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 17:05:32,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564190998] [2022-07-12 17:05:32,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564190998] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 17:05:32,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 17:05:32,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-12 17:05:32,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291295572] [2022-07-12 17:05:32,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 17:05:32,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-12 17:05:32,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 17:05:32,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-12 17:05:32,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-07-12 17:05:32,329 INFO L87 Difference]: Start difference. First operand 5496 states and 7478 transitions. Second operand has 17 states, 16 states have (on average 2.75) internal successors, (44), 14 states have internal predecessors, (44), 6 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2022-07-12 17:05:56,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 17:05:56,925 INFO L93 Difference]: Finished difference Result 6635 states and 8931 transitions. [2022-07-12 17:05:56,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-12 17:05:56,925 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.75) internal successors, (44), 14 states have internal predecessors, (44), 6 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 72 [2022-07-12 17:05:56,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 17:05:56,942 INFO L225 Difference]: With dead ends: 6635 [2022-07-12 17:05:56,942 INFO L226 Difference]: Without dead ends: 5959 [2022-07-12 17:05:56,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=729, Unknown=0, NotChecked=0, Total=870 [2022-07-12 17:05:56,951 INFO L413 NwaCegarLoop]: 3154 mSDtfsCounter, 4241 mSDsluCounter, 5048 mSDsCounter, 0 mSdLazyCounter, 45154 mSolverCounterSat, 2658 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4307 SdHoareTripleChecker+Valid, 8202 SdHoareTripleChecker+Invalid, 47812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2658 IncrementalHoareTripleChecker+Valid, 45154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2022-07-12 17:05:56,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4307 Valid, 8202 Invalid, 47812 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2658 Valid, 45154 Invalid, 0 Unknown, 0 Unchecked, 23.8s Time] [2022-07-12 17:05:56,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5959 states. [2022-07-12 17:05:57,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5959 to 5548. [2022-07-12 17:05:57,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5548 states, 3766 states have (on average 1.2745618693574083) internal successors, (4800), 3954 states have internal predecessors, (4800), 1375 states have call successors, (1375), 372 states have call predecessors, (1375), 369 states have return successors, (1373), 1317 states have call predecessors, (1373), 1373 states have call successors, (1373) [2022-07-12 17:05:57,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5548 states to 5548 states and 7548 transitions. [2022-07-12 17:05:57,134 INFO L78 Accepts]: Start accepts. Automaton has 5548 states and 7548 transitions. Word has length 72 [2022-07-12 17:05:57,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 17:05:57,134 INFO L495 AbstractCegarLoop]: Abstraction has 5548 states and 7548 transitions. [2022-07-12 17:05:57,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.75) internal successors, (44), 14 states have internal predecessors, (44), 6 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2022-07-12 17:05:57,135 INFO L276 IsEmpty]: Start isEmpty. Operand 5548 states and 7548 transitions. [2022-07-12 17:05:57,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-12 17:05:57,136 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 17:05:57,136 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 17:05:57,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 17:05:57,136 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-07-12 17:05:57,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 17:05:57,136 INFO L85 PathProgramCache]: Analyzing trace with hash -990300831, now seen corresponding path program 1 times [2022-07-12 17:05:57,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 17:05:57,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519377359] [2022-07-12 17:05:57,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 17:05:57,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 17:05:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:57,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 17:05:57,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:57,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 17:05:57,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:57,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 17:05:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:57,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 17:05:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:57,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:05:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:57,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 17:05:57,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:57,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 17:05:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:57,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 17:05:57,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:57,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 17:05:57,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:57,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 17:05:57,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:57,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 17:05:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:05:57,283 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 17:05:57,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 17:05:57,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519377359] [2022-07-12 17:05:57,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519377359] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 17:05:57,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 17:05:57,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 17:05:57,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393570944] [2022-07-12 17:05:57,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 17:05:57,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 17:05:57,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 17:05:57,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 17:05:57,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 17:05:57,285 INFO L87 Difference]: Start difference. First operand 5548 states and 7548 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-12 17:06:03,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 17:06:03,123 INFO L93 Difference]: Finished difference Result 6938 states and 9271 transitions. [2022-07-12 17:06:03,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 17:06:03,135 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 76 [2022-07-12 17:06:03,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 17:06:03,155 INFO L225 Difference]: With dead ends: 6938 [2022-07-12 17:06:03,156 INFO L226 Difference]: Without dead ends: 6936 [2022-07-12 17:06:03,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-07-12 17:06:03,159 INFO L413 NwaCegarLoop]: 3388 mSDtfsCounter, 7006 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 5041 mSolverCounterSat, 3686 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7121 SdHoareTripleChecker+Valid, 4588 SdHoareTripleChecker+Invalid, 8727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3686 IncrementalHoareTripleChecker+Valid, 5041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-07-12 17:06:03,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7121 Valid, 4588 Invalid, 8727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3686 Valid, 5041 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-07-12 17:06:03,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6936 states. [2022-07-12 17:06:03,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6936 to 6311. [2022-07-12 17:06:03,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6311 states, 4290 states have (on average 1.2564102564102564) internal successors, (5390), 4490 states have internal predecessors, (5390), 1530 states have call successors, (1530), 458 states have call predecessors, (1530), 453 states have return successors, (1528), 1462 states have call predecessors, (1528), 1528 states have call successors, (1528) [2022-07-12 17:06:03,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6311 states to 6311 states and 8448 transitions. [2022-07-12 17:06:03,398 INFO L78 Accepts]: Start accepts. Automaton has 6311 states and 8448 transitions. Word has length 76 [2022-07-12 17:06:03,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 17:06:03,398 INFO L495 AbstractCegarLoop]: Abstraction has 6311 states and 8448 transitions. [2022-07-12 17:06:03,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-12 17:06:03,399 INFO L276 IsEmpty]: Start isEmpty. Operand 6311 states and 8448 transitions. [2022-07-12 17:06:03,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-12 17:06:03,400 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 17:06:03,400 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 17:06:03,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 17:06:03,401 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-07-12 17:06:03,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 17:06:03,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1133077380, now seen corresponding path program 1 times [2022-07-12 17:06:03,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 17:06:03,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207225013] [2022-07-12 17:06:03,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 17:06:03,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 17:06:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:03,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 17:06:03,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:03,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 17:06:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:03,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 17:06:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:03,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 17:06:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:03,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:06:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:03,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 17:06:03,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:03,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 17:06:03,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:03,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 17:06:03,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:03,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 17:06:03,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:03,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 17:06:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:03,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 17:06:03,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:03,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 17:06:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:03,539 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 17:06:03,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 17:06:03,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207225013] [2022-07-12 17:06:03,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207225013] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 17:06:03,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 17:06:03,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 17:06:03,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794923749] [2022-07-12 17:06:03,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 17:06:03,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 17:06:03,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 17:06:03,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 17:06:03,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 17:06:03,541 INFO L87 Difference]: Start difference. First operand 6311 states and 8448 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 17:06:13,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 17:06:13,937 INFO L93 Difference]: Finished difference Result 6833 states and 9123 transitions. [2022-07-12 17:06:13,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 17:06:13,938 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 82 [2022-07-12 17:06:13,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 17:06:13,956 INFO L225 Difference]: With dead ends: 6833 [2022-07-12 17:06:13,956 INFO L226 Difference]: Without dead ends: 6831 [2022-07-12 17:06:13,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-07-12 17:06:13,960 INFO L413 NwaCegarLoop]: 3266 mSDtfsCounter, 10812 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 9217 mSolverCounterSat, 5949 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10968 SdHoareTripleChecker+Valid, 4402 SdHoareTripleChecker+Invalid, 15166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5949 IncrementalHoareTripleChecker+Valid, 9217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-07-12 17:06:13,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10968 Valid, 4402 Invalid, 15166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5949 Valid, 9217 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2022-07-12 17:06:13,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6831 states. [2022-07-12 17:06:14,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6831 to 6311. [2022-07-12 17:06:14,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6311 states, 4290 states have (on average 1.2561771561771562) internal successors, (5389), 4490 states have internal predecessors, (5389), 1530 states have call successors, (1530), 458 states have call predecessors, (1530), 453 states have return successors, (1528), 1462 states have call predecessors, (1528), 1528 states have call successors, (1528) [2022-07-12 17:06:14,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6311 states to 6311 states and 8447 transitions. [2022-07-12 17:06:14,204 INFO L78 Accepts]: Start accepts. Automaton has 6311 states and 8447 transitions. Word has length 82 [2022-07-12 17:06:14,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 17:06:14,204 INFO L495 AbstractCegarLoop]: Abstraction has 6311 states and 8447 transitions. [2022-07-12 17:06:14,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 17:06:14,205 INFO L276 IsEmpty]: Start isEmpty. Operand 6311 states and 8447 transitions. [2022-07-12 17:06:14,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-07-12 17:06:14,206 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 17:06:14,206 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 17:06:14,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 17:06:14,206 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-07-12 17:06:14,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 17:06:14,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1470553012, now seen corresponding path program 1 times [2022-07-12 17:06:14,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 17:06:14,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802780707] [2022-07-12 17:06:14,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 17:06:14,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 17:06:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:14,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 17:06:14,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:14,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 17:06:14,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:14,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 17:06:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:14,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 17:06:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:14,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:06:14,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:14,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 17:06:14,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:14,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 17:06:14,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:14,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 17:06:14,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:14,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 17:06:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:14,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 17:06:14,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:14,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 17:06:14,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:14,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 17:06:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:14,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 17:06:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:14,355 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 17:06:14,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 17:06:14,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802780707] [2022-07-12 17:06:14,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802780707] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 17:06:14,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 17:06:14,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 17:06:14,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182427554] [2022-07-12 17:06:14,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 17:06:14,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 17:06:14,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 17:06:14,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 17:06:14,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 17:06:14,357 INFO L87 Difference]: Start difference. First operand 6311 states and 8447 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 17:06:19,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 17:06:19,657 INFO L93 Difference]: Finished difference Result 6669 states and 8975 transitions. [2022-07-12 17:06:19,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 17:06:19,658 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 88 [2022-07-12 17:06:19,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 17:06:19,672 INFO L225 Difference]: With dead ends: 6669 [2022-07-12 17:06:19,672 INFO L226 Difference]: Without dead ends: 6667 [2022-07-12 17:06:19,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-07-12 17:06:19,674 INFO L413 NwaCegarLoop]: 3173 mSDtfsCounter, 6630 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 4427 mSolverCounterSat, 3583 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6743 SdHoareTripleChecker+Valid, 4011 SdHoareTripleChecker+Invalid, 8010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3583 IncrementalHoareTripleChecker+Valid, 4427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-07-12 17:06:19,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6743 Valid, 4011 Invalid, 8010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3583 Valid, 4427 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-07-12 17:06:19,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6667 states. [2022-07-12 17:06:19,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6667 to 6309. [2022-07-12 17:06:19,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6309 states, 4289 states have (on average 1.2557705758918163) internal successors, (5386), 4488 states have internal predecessors, (5386), 1530 states have call successors, (1530), 458 states have call predecessors, (1530), 453 states have return successors, (1528), 1462 states have call predecessors, (1528), 1528 states have call successors, (1528) [2022-07-12 17:06:19,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6309 states to 6309 states and 8444 transitions. [2022-07-12 17:06:19,882 INFO L78 Accepts]: Start accepts. Automaton has 6309 states and 8444 transitions. Word has length 88 [2022-07-12 17:06:19,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 17:06:19,882 INFO L495 AbstractCegarLoop]: Abstraction has 6309 states and 8444 transitions. [2022-07-12 17:06:19,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 17:06:19,882 INFO L276 IsEmpty]: Start isEmpty. Operand 6309 states and 8444 transitions. [2022-07-12 17:06:19,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-12 17:06:19,884 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 17:06:19,884 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 17:06:19,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 17:06:19,885 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-07-12 17:06:19,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 17:06:19,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1697529068, now seen corresponding path program 1 times [2022-07-12 17:06:19,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 17:06:19,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007762983] [2022-07-12 17:06:19,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 17:06:19,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 17:06:19,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:19,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 17:06:19,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:19,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 17:06:19,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:19,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 17:06:19,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:19,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 17:06:19,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:19,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:06:19,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:19,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 17:06:19,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:19,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 17:06:19,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:19,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 17:06:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:20,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 17:06:20,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:20,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 17:06:20,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:20,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 17:06:20,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:20,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 17:06:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:20,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 17:06:20,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:20,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 17:06:20,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:20,036 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 17:06:20,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 17:06:20,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007762983] [2022-07-12 17:06:20,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007762983] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 17:06:20,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 17:06:20,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 17:06:20,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219979790] [2022-07-12 17:06:20,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 17:06:20,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 17:06:20,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 17:06:20,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 17:06:20,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 17:06:20,038 INFO L87 Difference]: Start difference. First operand 6309 states and 8444 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 17:06:30,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 17:06:30,973 INFO L93 Difference]: Finished difference Result 11830 states and 15980 transitions. [2022-07-12 17:06:30,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 17:06:30,973 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 94 [2022-07-12 17:06:30,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 17:06:31,001 INFO L225 Difference]: With dead ends: 11830 [2022-07-12 17:06:31,001 INFO L226 Difference]: Without dead ends: 11828 [2022-07-12 17:06:31,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-07-12 17:06:31,007 INFO L413 NwaCegarLoop]: 3301 mSDtfsCounter, 9723 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 9180 mSolverCounterSat, 5506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9876 SdHoareTripleChecker+Valid, 4446 SdHoareTripleChecker+Invalid, 14686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5506 IncrementalHoareTripleChecker+Valid, 9180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-07-12 17:06:31,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9876 Valid, 4446 Invalid, 14686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5506 Valid, 9180 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2022-07-12 17:06:31,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11828 states. [2022-07-12 17:06:31,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11828 to 10877. [2022-07-12 17:06:31,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10877 states, 7390 states have (on average 1.2543978349120433) internal successors, (9270), 7687 states have internal predecessors, (9270), 2658 states have call successors, (2658), 797 states have call predecessors, (2658), 792 states have return successors, (2736), 2554 states have call predecessors, (2736), 2656 states have call successors, (2736) [2022-07-12 17:06:31,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10877 states to 10877 states and 14664 transitions. [2022-07-12 17:06:31,467 INFO L78 Accepts]: Start accepts. Automaton has 10877 states and 14664 transitions. Word has length 94 [2022-07-12 17:06:31,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 17:06:31,467 INFO L495 AbstractCegarLoop]: Abstraction has 10877 states and 14664 transitions. [2022-07-12 17:06:31,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 17:06:31,468 INFO L276 IsEmpty]: Start isEmpty. Operand 10877 states and 14664 transitions. [2022-07-12 17:06:31,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 17:06:31,469 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 17:06:31,469 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 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] [2022-07-12 17:06:31,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 17:06:31,469 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_drivers_base_class__double_registrationErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-07-12 17:06:31,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 17:06:31,470 INFO L85 PathProgramCache]: Analyzing trace with hash 478715272, now seen corresponding path program 1 times [2022-07-12 17:06:31,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 17:06:31,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856476365] [2022-07-12 17:06:31,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 17:06:31,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 17:06:31,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:31,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 17:06:31,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:31,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 17:06:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:31,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:06:31,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:31,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 17:06:31,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:31,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 17:06:31,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:31,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:06:31,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:31,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 17:06:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:31,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 17:06:31,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:31,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 17:06:31,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:31,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 17:06:31,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:31,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 17:06:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:31,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:06:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:31,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 17:06:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:31,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-12 17:06:31,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:31,697 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-07-12 17:06:31,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 17:06:31,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856476365] [2022-07-12 17:06:31,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856476365] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 17:06:31,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 17:06:31,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 17:06:31,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050871152] [2022-07-12 17:06:31,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 17:06:31,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 17:06:31,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 17:06:31,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 17:06:31,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-12 17:06:31,700 INFO L87 Difference]: Start difference. First operand 10877 states and 14664 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-07-12 17:06:39,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 17:06:39,073 INFO L93 Difference]: Finished difference Result 14084 states and 19363 transitions. [2022-07-12 17:06:39,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 17:06:39,074 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 99 [2022-07-12 17:06:39,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 17:06:39,108 INFO L225 Difference]: With dead ends: 14084 [2022-07-12 17:06:39,109 INFO L226 Difference]: Without dead ends: 12430 [2022-07-12 17:06:39,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2022-07-12 17:06:39,120 INFO L413 NwaCegarLoop]: 3780 mSDtfsCounter, 2134 mSDsluCounter, 21667 mSDsCounter, 0 mSdLazyCounter, 12498 mSolverCounterSat, 1330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2396 SdHoareTripleChecker+Valid, 25447 SdHoareTripleChecker+Invalid, 13828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1330 IncrementalHoareTripleChecker+Valid, 12498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-07-12 17:06:39,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2396 Valid, 25447 Invalid, 13828 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1330 Valid, 12498 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-07-12 17:06:39,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12430 states. [2022-07-12 17:06:39,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12430 to 10796. [2022-07-12 17:06:39,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10796 states, 7335 states have (on average 1.2530334014996591) internal successors, (9191), 7632 states have internal predecessors, (9191), 2632 states have call successors, (2632), 783 states have call predecessors, (2632), 792 states have return successors, (2759), 2538 states have call predecessors, (2759), 2630 states have call successors, (2759) [2022-07-12 17:06:39,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10796 states to 10796 states and 14582 transitions. [2022-07-12 17:06:39,652 INFO L78 Accepts]: Start accepts. Automaton has 10796 states and 14582 transitions. Word has length 99 [2022-07-12 17:06:39,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 17:06:39,652 INFO L495 AbstractCegarLoop]: Abstraction has 10796 states and 14582 transitions. [2022-07-12 17:06:39,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-07-12 17:06:39,653 INFO L276 IsEmpty]: Start isEmpty. Operand 10796 states and 14582 transitions. [2022-07-12 17:06:39,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-12 17:06:39,654 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 17:06:39,654 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1] [2022-07-12 17:06:39,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 17:06:39,654 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-07-12 17:06:39,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 17:06:39,655 INFO L85 PathProgramCache]: Analyzing trace with hash 762298967, now seen corresponding path program 1 times [2022-07-12 17:06:39,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 17:06:39,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338761659] [2022-07-12 17:06:39,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 17:06:39,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 17:06:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:39,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 17:06:39,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:39,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 17:06:39,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:39,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 17:06:39,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:39,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 17:06:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:39,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:06:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:39,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 17:06:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:39,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 17:06:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:39,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 17:06:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:39,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 17:06:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:39,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 17:06:39,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:39,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 17:06:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:39,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 17:06:39,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:39,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 17:06:39,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:39,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 17:06:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:39,820 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 17:06:39,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 17:06:39,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338761659] [2022-07-12 17:06:39,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338761659] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 17:06:39,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 17:06:39,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 17:06:39,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817860612] [2022-07-12 17:06:39,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 17:06:39,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 17:06:39,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 17:06:39,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 17:06:39,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 17:06:39,822 INFO L87 Difference]: Start difference. First operand 10796 states and 14582 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 17:06:45,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 17:06:45,520 INFO L93 Difference]: Finished difference Result 11752 states and 15904 transitions. [2022-07-12 17:06:45,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 17:06:45,521 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 96 [2022-07-12 17:06:45,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 17:06:45,559 INFO L225 Difference]: With dead ends: 11752 [2022-07-12 17:06:45,559 INFO L226 Difference]: Without dead ends: 11750 [2022-07-12 17:06:45,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-07-12 17:06:45,565 INFO L413 NwaCegarLoop]: 3122 mSDtfsCounter, 6765 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 4504 mSolverCounterSat, 3636 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6872 SdHoareTripleChecker+Valid, 3960 SdHoareTripleChecker+Invalid, 8140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3636 IncrementalHoareTripleChecker+Valid, 4504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-07-12 17:06:45,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6872 Valid, 3960 Invalid, 8140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3636 Valid, 4504 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-07-12 17:06:45,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11750 states. [2022-07-12 17:06:45,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11750 to 11030. [2022-07-12 17:06:45,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11030 states, 7478 states have (on average 1.2487296068467504) internal successors, (9338), 7774 states have internal predecessors, (9338), 2680 states have call successors, (2680), 827 states have call predecessors, (2680), 836 states have return successors, (2807), 2586 states have call predecessors, (2807), 2678 states have call successors, (2807) [2022-07-12 17:06:46,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11030 states to 11030 states and 14825 transitions. [2022-07-12 17:06:46,020 INFO L78 Accepts]: Start accepts. Automaton has 11030 states and 14825 transitions. Word has length 96 [2022-07-12 17:06:46,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 17:06:46,020 INFO L495 AbstractCegarLoop]: Abstraction has 11030 states and 14825 transitions. [2022-07-12 17:06:46,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 17:06:46,020 INFO L276 IsEmpty]: Start isEmpty. Operand 11030 states and 14825 transitions. [2022-07-12 17:06:46,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-12 17:06:46,030 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 17:06:46,030 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 17:06:46,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-12 17:06:46,030 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-07-12 17:06:46,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 17:06:46,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1936689382, now seen corresponding path program 1 times [2022-07-12 17:06:46,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 17:06:46,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873620480] [2022-07-12 17:06:46,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 17:06:46,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 17:06:46,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:46,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 17:06:46,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:46,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 17:06:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:46,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 17:06:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:46,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 17:06:46,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:46,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:06:46,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:46,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 17:06:46,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:46,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 17:06:46,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:46,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 17:06:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:46,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 17:06:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:46,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 17:06:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:46,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 17:06:46,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:46,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 17:06:46,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:46,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 17:06:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:46,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 17:06:46,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:46,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 17:06:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:46,166 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 17:06:46,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 17:06:46,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873620480] [2022-07-12 17:06:46,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873620480] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 17:06:46,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 17:06:46,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 17:06:46,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082851886] [2022-07-12 17:06:46,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 17:06:46,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 17:06:46,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 17:06:46,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 17:06:46,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 17:06:46,168 INFO L87 Difference]: Start difference. First operand 11030 states and 14825 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 17:06:57,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 17:06:57,567 INFO L93 Difference]: Finished difference Result 22733 states and 31150 transitions. [2022-07-12 17:06:57,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 17:06:57,567 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 102 [2022-07-12 17:06:57,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 17:06:57,621 INFO L225 Difference]: With dead ends: 22733 [2022-07-12 17:06:57,621 INFO L226 Difference]: Without dead ends: 22731 [2022-07-12 17:06:57,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-07-12 17:06:57,632 INFO L413 NwaCegarLoop]: 3267 mSDtfsCounter, 10843 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 9266 mSolverCounterSat, 6066 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10995 SdHoareTripleChecker+Valid, 4412 SdHoareTripleChecker+Invalid, 15332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6066 IncrementalHoareTripleChecker+Valid, 9266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-07-12 17:06:57,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10995 Valid, 4412 Invalid, 15332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6066 Valid, 9266 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2022-07-12 17:06:57,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22731 states. [2022-07-12 17:06:58,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22731 to 21081. [2022-07-12 17:06:58,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21081 states, 14310 states have (on average 1.253109713487072) internal successors, (17932), 14850 states have internal predecessors, (17932), 5153 states have call successors, (5153), 1559 states have call predecessors, (5153), 1582 states have return successors, (5667), 4979 states have call predecessors, (5667), 5151 states have call successors, (5667) [2022-07-12 17:06:58,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21081 states to 21081 states and 28752 transitions. [2022-07-12 17:06:58,528 INFO L78 Accepts]: Start accepts. Automaton has 21081 states and 28752 transitions. Word has length 102 [2022-07-12 17:06:58,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 17:06:58,529 INFO L495 AbstractCegarLoop]: Abstraction has 21081 states and 28752 transitions. [2022-07-12 17:06:58,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 17:06:58,529 INFO L276 IsEmpty]: Start isEmpty. Operand 21081 states and 28752 transitions. [2022-07-12 17:06:58,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-12 17:06:58,530 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 17:06:58,530 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 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] [2022-07-12 17:06:58,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-12 17:06:58,531 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_drivers_base_class__double_registrationErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-07-12 17:06:58,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 17:06:58,531 INFO L85 PathProgramCache]: Analyzing trace with hash -106955744, now seen corresponding path program 1 times [2022-07-12 17:06:58,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 17:06:58,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278621964] [2022-07-12 17:06:58,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 17:06:58,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 17:06:58,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:58,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 17:06:58,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:58,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 17:06:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:58,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:06:58,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:58,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 17:06:58,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:58,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 17:06:58,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:58,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 17:06:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:58,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:06:58,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:58,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 17:06:58,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:58,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 17:06:58,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:58,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 17:06:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:58,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-12 17:06:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:58,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 17:06:58,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:58,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:06:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:58,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 17:06:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:58,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 17:06:58,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:06:58,700 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-07-12 17:06:58,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 17:06:58,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278621964] [2022-07-12 17:06:58,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278621964] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 17:06:58,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 17:06:58,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 17:06:58,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172545794] [2022-07-12 17:06:58,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 17:06:58,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 17:06:58,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 17:06:58,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 17:06:58,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 17:06:58,702 INFO L87 Difference]: Start difference. First operand 21081 states and 28752 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 17:07:03,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 17:07:03,567 INFO L93 Difference]: Finished difference Result 24541 states and 34538 transitions. [2022-07-12 17:07:03,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 17:07:03,568 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 106 [2022-07-12 17:07:03,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 17:07:03,626 INFO L225 Difference]: With dead ends: 24541 [2022-07-12 17:07:03,626 INFO L226 Difference]: Without dead ends: 24539 [2022-07-12 17:07:03,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-12 17:07:03,635 INFO L413 NwaCegarLoop]: 3882 mSDtfsCounter, 4757 mSDsluCounter, 6963 mSDsCounter, 0 mSdLazyCounter, 4424 mSolverCounterSat, 1645 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5189 SdHoareTripleChecker+Valid, 10845 SdHoareTripleChecker+Invalid, 6069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1645 IncrementalHoareTripleChecker+Valid, 4424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-07-12 17:07:03,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5189 Valid, 10845 Invalid, 6069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1645 Valid, 4424 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-07-12 17:07:03,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24539 states. [2022-07-12 17:07:04,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24539 to 22435. [2022-07-12 17:07:04,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22435 states, 15299 states have (on average 1.2641349107784823) internal successors, (19340), 15918 states have internal predecessors, (19340), 5445 states have call successors, (5445), 1559 states have call predecessors, (5445), 1656 states have return successors, (6326), 5307 states have call predecessors, (6326), 5443 states have call successors, (6326) [2022-07-12 17:07:04,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22435 states to 22435 states and 31111 transitions. [2022-07-12 17:07:04,597 INFO L78 Accepts]: Start accepts. Automaton has 22435 states and 31111 transitions. Word has length 106 [2022-07-12 17:07:04,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 17:07:04,597 INFO L495 AbstractCegarLoop]: Abstraction has 22435 states and 31111 transitions. [2022-07-12 17:07:04,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 17:07:04,597 INFO L276 IsEmpty]: Start isEmpty. Operand 22435 states and 31111 transitions. [2022-07-12 17:07:04,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-12 17:07:04,599 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 17:07:04,599 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 17:07:04,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-12 17:07:04,599 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-07-12 17:07:04,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 17:07:04,599 INFO L85 PathProgramCache]: Analyzing trace with hash -753317812, now seen corresponding path program 1 times [2022-07-12 17:07:04,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 17:07:04,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327315336] [2022-07-12 17:07:04,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 17:07:04,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 17:07:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:04,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 17:07:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:04,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 17:07:04,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:04,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 17:07:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:04,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 17:07:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:04,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:07:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:04,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 17:07:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:04,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 17:07:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:04,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 17:07:04,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:04,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 17:07:04,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:04,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 17:07:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:04,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 17:07:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:04,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 17:07:04,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:04,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 17:07:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:04,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 17:07:04,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:04,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 17:07:04,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:04,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 17:07:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:04,749 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 17:07:04,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 17:07:04,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327315336] [2022-07-12 17:07:04,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327315336] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 17:07:04,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 17:07:04,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 17:07:04,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349459505] [2022-07-12 17:07:04,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 17:07:04,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 17:07:04,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 17:07:04,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 17:07:04,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 17:07:04,751 INFO L87 Difference]: Start difference. First operand 22435 states and 31111 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 17:07:11,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 17:07:11,375 INFO L93 Difference]: Finished difference Result 23867 states and 33305 transitions. [2022-07-12 17:07:11,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 17:07:11,375 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 108 [2022-07-12 17:07:11,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 17:07:11,426 INFO L225 Difference]: With dead ends: 23867 [2022-07-12 17:07:11,426 INFO L226 Difference]: Without dead ends: 23865 [2022-07-12 17:07:11,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-07-12 17:07:11,435 INFO L413 NwaCegarLoop]: 3130 mSDtfsCounter, 6690 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 4384 mSolverCounterSat, 3577 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6800 SdHoareTripleChecker+Valid, 3968 SdHoareTripleChecker+Invalid, 7961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3577 IncrementalHoareTripleChecker+Valid, 4384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-07-12 17:07:11,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6800 Valid, 3968 Invalid, 7961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3577 Valid, 4384 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-07-12 17:07:11,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23865 states. [2022-07-12 17:07:12,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23865 to 22433. [2022-07-12 17:07:12,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22433 states, 15298 states have (on average 1.264021440711204) internal successors, (19337), 15916 states have internal predecessors, (19337), 5445 states have call successors, (5445), 1559 states have call predecessors, (5445), 1656 states have return successors, (6326), 5307 states have call predecessors, (6326), 5443 states have call successors, (6326) [2022-07-12 17:07:12,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22433 states to 22433 states and 31108 transitions. [2022-07-12 17:07:12,419 INFO L78 Accepts]: Start accepts. Automaton has 22433 states and 31108 transitions. Word has length 108 [2022-07-12 17:07:12,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 17:07:12,420 INFO L495 AbstractCegarLoop]: Abstraction has 22433 states and 31108 transitions. [2022-07-12 17:07:12,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 17:07:12,420 INFO L276 IsEmpty]: Start isEmpty. Operand 22433 states and 31108 transitions. [2022-07-12 17:07:12,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-12 17:07:12,421 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 17:07:12,421 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 17:07:12,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-12 17:07:12,421 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-07-12 17:07:12,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 17:07:12,422 INFO L85 PathProgramCache]: Analyzing trace with hash 585604035, now seen corresponding path program 1 times [2022-07-12 17:07:12,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 17:07:12,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271366505] [2022-07-12 17:07:12,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 17:07:12,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 17:07:12,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:12,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 17:07:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:12,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 17:07:12,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:12,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 17:07:12,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:12,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 17:07:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:12,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:07:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:12,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 17:07:12,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:12,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 17:07:12,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:12,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 17:07:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:12,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 17:07:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:12,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 17:07:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:12,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 17:07:12,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:12,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 17:07:12,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:12,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 17:07:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:12,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 17:07:12,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:12,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 17:07:12,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:12,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 17:07:12,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:12,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 17:07:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:12,570 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 17:07:12,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 17:07:12,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271366505] [2022-07-12 17:07:12,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271366505] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 17:07:12,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 17:07:12,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 17:07:12,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237536791] [2022-07-12 17:07:12,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 17:07:12,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 17:07:12,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 17:07:12,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 17:07:12,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 17:07:12,572 INFO L87 Difference]: Start difference. First operand 22433 states and 31108 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, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 17:07:19,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 17:07:19,065 INFO L93 Difference]: Finished difference Result 23865 states and 33302 transitions. [2022-07-12 17:07:19,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 17:07:19,065 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, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 114 [2022-07-12 17:07:19,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 17:07:19,120 INFO L225 Difference]: With dead ends: 23865 [2022-07-12 17:07:19,120 INFO L226 Difference]: Without dead ends: 23863 [2022-07-12 17:07:19,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-07-12 17:07:19,128 INFO L413 NwaCegarLoop]: 3176 mSDtfsCounter, 6594 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 4430 mSolverCounterSat, 3568 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6703 SdHoareTripleChecker+Valid, 4014 SdHoareTripleChecker+Invalid, 7998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3568 IncrementalHoareTripleChecker+Valid, 4430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-07-12 17:07:19,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6703 Valid, 4014 Invalid, 7998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3568 Valid, 4430 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-07-12 17:07:19,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23863 states. [2022-07-12 17:07:20,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23863 to 22431. [2022-07-12 17:07:20,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22431 states, 15297 states have (on average 1.2639079558083284) internal successors, (19334), 15914 states have internal predecessors, (19334), 5445 states have call successors, (5445), 1559 states have call predecessors, (5445), 1656 states have return successors, (6326), 5307 states have call predecessors, (6326), 5443 states have call successors, (6326) [2022-07-12 17:07:20,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22431 states to 22431 states and 31105 transitions. [2022-07-12 17:07:20,207 INFO L78 Accepts]: Start accepts. Automaton has 22431 states and 31105 transitions. Word has length 114 [2022-07-12 17:07:20,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 17:07:20,207 INFO L495 AbstractCegarLoop]: Abstraction has 22431 states and 31105 transitions. [2022-07-12 17:07:20,207 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, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 17:07:20,207 INFO L276 IsEmpty]: Start isEmpty. Operand 22431 states and 31105 transitions. [2022-07-12 17:07:20,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-12 17:07:20,208 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 17:07:20,209 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 17:07:20,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-12 17:07:20,209 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-07-12 17:07:20,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 17:07:20,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1365025461, now seen corresponding path program 1 times [2022-07-12 17:07:20,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 17:07:20,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188504268] [2022-07-12 17:07:20,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 17:07:20,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 17:07:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:20,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 17:07:20,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:20,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 17:07:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:20,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 17:07:20,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:20,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 17:07:20,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:20,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:07:20,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:20,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 17:07:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:20,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 17:07:20,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:20,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 17:07:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:20,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 17:07:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:20,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 17:07:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:20,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 17:07:20,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:20,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 17:07:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:20,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 17:07:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:20,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 17:07:20,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:20,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 17:07:20,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:20,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 17:07:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:20,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 17:07:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:20,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 17:07:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:20,359 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 17:07:20,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 17:07:20,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188504268] [2022-07-12 17:07:20,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188504268] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 17:07:20,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 17:07:20,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 17:07:20,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158405646] [2022-07-12 17:07:20,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 17:07:20,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 17:07:20,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 17:07:20,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 17:07:20,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 17:07:20,361 INFO L87 Difference]: Start difference. First operand 22431 states and 31105 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 17:07:31,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 17:07:31,051 INFO L93 Difference]: Finished difference Result 38286 states and 54219 transitions. [2022-07-12 17:07:31,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 17:07:31,052 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 120 [2022-07-12 17:07:31,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 17:07:31,172 INFO L225 Difference]: With dead ends: 38286 [2022-07-12 17:07:31,172 INFO L226 Difference]: Without dead ends: 38284 [2022-07-12 17:07:31,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-07-12 17:07:31,189 INFO L413 NwaCegarLoop]: 3385 mSDtfsCounter, 8170 mSDsluCounter, 1225 mSDsCounter, 0 mSdLazyCounter, 8830 mSolverCounterSat, 4398 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8317 SdHoareTripleChecker+Valid, 4610 SdHoareTripleChecker+Invalid, 13228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4398 IncrementalHoareTripleChecker+Valid, 8830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-07-12 17:07:31,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8317 Valid, 4610 Invalid, 13228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4398 Valid, 8830 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2022-07-12 17:07:31,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38284 states. [2022-07-12 17:07:32,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38284 to 36407. [2022-07-12 17:07:32,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36407 states, 24862 states have (on average 1.2714182286219935) internal successors, (31610), 25883 states have internal predecessors, (31610), 8744 states have call successors, (8744), 2619 states have call predecessors, (8744), 2768 states have return successors, (11053), 8442 states have call predecessors, (11053), 8742 states have call successors, (11053) [2022-07-12 17:07:32,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36407 states to 36407 states and 51407 transitions. [2022-07-12 17:07:32,859 INFO L78 Accepts]: Start accepts. Automaton has 36407 states and 51407 transitions. Word has length 120 [2022-07-12 17:07:32,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 17:07:32,859 INFO L495 AbstractCegarLoop]: Abstraction has 36407 states and 51407 transitions. [2022-07-12 17:07:32,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 17:07:32,859 INFO L276 IsEmpty]: Start isEmpty. Operand 36407 states and 51407 transitions. [2022-07-12 17:07:32,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-12 17:07:32,860 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 17:07:32,861 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 17:07:32,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-12 17:07:32,861 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-07-12 17:07:32,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 17:07:32,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1657794054, now seen corresponding path program 1 times [2022-07-12 17:07:32,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 17:07:32,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113409777] [2022-07-12 17:07:32,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 17:07:32,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 17:07:32,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:32,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 17:07:32,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:32,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 17:07:32,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:32,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:07:32,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:32,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 17:07:32,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:32,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 17:07:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:32,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 17:07:32,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:32,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:07:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:32,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 17:07:32,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:32,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 17:07:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:32,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 17:07:32,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:33,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-12 17:07:33,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:33,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 17:07:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:33,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:07:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:33,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 17:07:33,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:33,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 17:07:33,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:33,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 17:07:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:33,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 17:07:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:33,040 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-12 17:07:33,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 17:07:33,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113409777] [2022-07-12 17:07:33,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113409777] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 17:07:33,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 17:07:33,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 17:07:33,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809343136] [2022-07-12 17:07:33,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 17:07:33,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 17:07:33,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 17:07:33,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 17:07:33,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 17:07:33,043 INFO L87 Difference]: Start difference. First operand 36407 states and 51407 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 17:07:38,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 17:07:38,302 INFO L93 Difference]: Finished difference Result 39111 states and 56458 transitions. [2022-07-12 17:07:38,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 17:07:38,303 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 119 [2022-07-12 17:07:38,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 17:07:38,427 INFO L225 Difference]: With dead ends: 39111 [2022-07-12 17:07:38,427 INFO L226 Difference]: Without dead ends: 39109 [2022-07-12 17:07:38,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-12 17:07:38,450 INFO L413 NwaCegarLoop]: 3466 mSDtfsCounter, 4739 mSDsluCounter, 6238 mSDsCounter, 0 mSdLazyCounter, 3674 mSolverCounterSat, 1641 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5158 SdHoareTripleChecker+Valid, 9704 SdHoareTripleChecker+Invalid, 5315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1641 IncrementalHoareTripleChecker+Valid, 3674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-12 17:07:38,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5158 Valid, 9704 Invalid, 5315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1641 Valid, 3674 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-12 17:07:38,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39109 states. [2022-07-12 17:07:40,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39109 to 36619. [2022-07-12 17:07:40,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36619 states, 25013 states have (on average 1.2715387998240915) internal successors, (31805), 26049 states have internal predecessors, (31805), 8784 states have call successors, (8784), 2619 states have call predecessors, (8784), 2790 states have return successors, (11172), 8492 states have call predecessors, (11172), 8782 states have call successors, (11172) [2022-07-12 17:07:40,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36619 states to 36619 states and 51761 transitions. [2022-07-12 17:07:40,302 INFO L78 Accepts]: Start accepts. Automaton has 36619 states and 51761 transitions. Word has length 119 [2022-07-12 17:07:40,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 17:07:40,302 INFO L495 AbstractCegarLoop]: Abstraction has 36619 states and 51761 transitions. [2022-07-12 17:07:40,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 17:07:40,303 INFO L276 IsEmpty]: Start isEmpty. Operand 36619 states and 51761 transitions. [2022-07-12 17:07:40,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-07-12 17:07:40,304 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 17:07:40,304 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 17:07:40,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-12 17:07:40,304 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-07-12 17:07:40,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 17:07:40,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1132288611, now seen corresponding path program 1 times [2022-07-12 17:07:40,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 17:07:40,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173120086] [2022-07-12 17:07:40,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 17:07:40,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 17:07:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:40,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 17:07:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:40,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 17:07:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:40,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 17:07:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:40,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 17:07:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:40,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:07:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:40,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 17:07:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:40,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 17:07:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:40,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 17:07:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:40,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 17:07:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:40,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 17:07:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:40,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 17:07:40,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:40,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 17:07:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:40,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 17:07:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:40,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 17:07:40,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:40,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 17:07:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:40,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 17:07:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:40,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 17:07:40,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:40,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 17:07:40,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:40,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 17:07:40,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:40,445 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 17:07:40,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 17:07:40,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173120086] [2022-07-12 17:07:40,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173120086] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 17:07:40,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 17:07:40,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 17:07:40,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865144806] [2022-07-12 17:07:40,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 17:07:40,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 17:07:40,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 17:07:40,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 17:07:40,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 17:07:40,448 INFO L87 Difference]: Start difference. First operand 36619 states and 51761 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-12 17:07:48,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 17:07:48,071 INFO L93 Difference]: Finished difference Result 38051 states and 54009 transitions. [2022-07-12 17:07:48,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 17:07:48,073 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 126 [2022-07-12 17:07:48,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 17:07:48,185 INFO L225 Difference]: With dead ends: 38051 [2022-07-12 17:07:48,185 INFO L226 Difference]: Without dead ends: 38049 [2022-07-12 17:07:48,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-07-12 17:07:48,201 INFO L413 NwaCegarLoop]: 3132 mSDtfsCounter, 6652 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 4386 mSolverCounterSat, 3583 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6759 SdHoareTripleChecker+Valid, 3970 SdHoareTripleChecker+Invalid, 7969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3583 IncrementalHoareTripleChecker+Valid, 4386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-07-12 17:07:48,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6759 Valid, 3970 Invalid, 7969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3583 Valid, 4386 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-07-12 17:07:48,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38049 states. [2022-07-12 17:07:50,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38049 to 36617. [2022-07-12 17:07:50,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36617 states, 25012 states have (on average 1.2714696945466175) internal successors, (31802), 26047 states have internal predecessors, (31802), 8784 states have call successors, (8784), 2619 states have call predecessors, (8784), 2790 states have return successors, (11172), 8492 states have call predecessors, (11172), 8782 states have call successors, (11172) [2022-07-12 17:07:50,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36617 states to 36617 states and 51758 transitions. [2022-07-12 17:07:50,336 INFO L78 Accepts]: Start accepts. Automaton has 36617 states and 51758 transitions. Word has length 126 [2022-07-12 17:07:50,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 17:07:50,336 INFO L495 AbstractCegarLoop]: Abstraction has 36617 states and 51758 transitions. [2022-07-12 17:07:50,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-12 17:07:50,337 INFO L276 IsEmpty]: Start isEmpty. Operand 36617 states and 51758 transitions. [2022-07-12 17:07:50,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-12 17:07:50,339 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 17:07:50,339 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 17:07:50,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-12 17:07:50,339 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_lib_idr__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-07-12 17:07:50,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 17:07:50,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1450549279, now seen corresponding path program 1 times [2022-07-12 17:07:50,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 17:07:50,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013403350] [2022-07-12 17:07:50,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 17:07:50,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 17:07:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:50,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 17:07:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:50,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 17:07:50,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:50,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 17:07:50,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:50,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 17:07:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:50,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:07:50,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:50,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 17:07:50,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:50,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 17:07:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:50,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 17:07:50,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:50,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 17:07:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:50,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 17:07:50,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:50,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 17:07:50,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:50,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 17:07:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:50,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 17:07:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:50,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 17:07:50,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:50,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 17:07:50,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:50,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 17:07:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:50,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 17:07:50,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:50,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 17:07:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:50,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 17:07:50,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:50,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 17:07:50,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:07:50,495 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 17:07:50,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 17:07:50,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013403350] [2022-07-12 17:07:50,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013403350] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 17:07:50,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 17:07:50,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 17:07:50,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577331826] [2022-07-12 17:07:50,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 17:07:50,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 17:07:50,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 17:07:50,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 17:07:50,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 17:07:50,497 INFO L87 Difference]: Start difference. First operand 36617 states and 51758 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 17:08:05,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 17:08:05,198 INFO L93 Difference]: Finished difference Result 55423 states and 79463 transitions. [2022-07-12 17:08:05,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 17:08:05,199 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 133 [2022-07-12 17:08:05,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 17:08:05,364 INFO L225 Difference]: With dead ends: 55423 [2022-07-12 17:08:05,364 INFO L226 Difference]: Without dead ends: 55421 [2022-07-12 17:08:05,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-07-12 17:08:05,386 INFO L413 NwaCegarLoop]: 3271 mSDtfsCounter, 8895 mSDsluCounter, 1509 mSDsCounter, 0 mSdLazyCounter, 12750 mSolverCounterSat, 5000 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9042 SdHoareTripleChecker+Valid, 4780 SdHoareTripleChecker+Invalid, 17750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5000 IncrementalHoareTripleChecker+Valid, 12750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-07-12 17:08:05,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9042 Valid, 4780 Invalid, 17750 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5000 Valid, 12750 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2022-07-12 17:08:05,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55421 states. [2022-07-12 17:08:07,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55421 to 53774. [2022-07-12 17:08:07,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53774 states, 36590 states have (on average 1.266138289150041) internal successors, (46328), 38071 states have internal predecessors, (46328), 12977 states have call successors, (12977), 3949 states have call predecessors, (12977), 4176 states have return successors, (17644), 12537 states have call predecessors, (17644), 12975 states have call successors, (17644) [2022-07-12 17:08:07,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53774 states to 53774 states and 76949 transitions. [2022-07-12 17:08:07,974 INFO L78 Accepts]: Start accepts. Automaton has 53774 states and 76949 transitions. Word has length 133 [2022-07-12 17:08:07,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 17:08:07,974 INFO L495 AbstractCegarLoop]: Abstraction has 53774 states and 76949 transitions. [2022-07-12 17:08:07,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 17:08:07,975 INFO L276 IsEmpty]: Start isEmpty. Operand 53774 states and 76949 transitions. [2022-07-12 17:08:07,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-12 17:08:07,976 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 17:08:07,976 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 17:08:07,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-12 17:08:07,976 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_lib_idr__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-07-12 17:08:07,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 17:08:07,977 INFO L85 PathProgramCache]: Analyzing trace with hash 2144491224, now seen corresponding path program 1 times [2022-07-12 17:08:07,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 17:08:07,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841698727] [2022-07-12 17:08:07,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 17:08:07,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 17:08:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:08:08,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 17:08:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:08:08,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 17:08:08,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:08:08,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 17:08:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:08:08,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 17:08:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:08:08,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 17:08:08,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:08:08,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 17:08:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:08:08,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 17:08:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:08:08,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 17:08:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:08:08,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 17:08:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:08:08,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 17:08:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:08:08,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 17:08:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:08:08,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 17:08:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:08:08,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 17:08:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:08:08,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 17:08:08,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:08:08,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 17:08:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:08:08,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 17:08:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:08:08,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 17:08:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:08:08,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 17:08:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:08:08,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 17:08:08,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:08:08,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 17:08:08,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:08:08,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-12 17:08:08,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 17:08:08,372 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 17:08:08,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 17:08:08,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841698727] [2022-07-12 17:08:08,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841698727] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 17:08:08,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 17:08:08,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 17:08:08,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233760377] [2022-07-12 17:08:08,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 17:08:08,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 17:08:08,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 17:08:08,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 17:08:08,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 17:08:08,375 INFO L87 Difference]: Start difference. First operand 53774 states and 76949 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-12 17:08:26,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 17:08:26,175 INFO L93 Difference]: Finished difference Result 79957 states and 116694 transitions. [2022-07-12 17:08:26,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 17:08:26,175 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (23), 5 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 138 [2022-07-12 17:08:26,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 17:08:26,440 INFO L225 Difference]: With dead ends: 79957 [2022-07-12 17:08:26,441 INFO L226 Difference]: Without dead ends: 79955 [2022-07-12 17:08:26,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-07-12 17:08:26,474 INFO L413 NwaCegarLoop]: 3320 mSDtfsCounter, 10680 mSDsluCounter, 1628 mSDsCounter, 0 mSdLazyCounter, 13506 mSolverCounterSat, 6019 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10825 SdHoareTripleChecker+Valid, 4948 SdHoareTripleChecker+Invalid, 19525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6019 IncrementalHoareTripleChecker+Valid, 13506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-07-12 17:08:26,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10825 Valid, 4948 Invalid, 19525 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6019 Valid, 13506 Invalid, 0 Unknown, 0 Unchecked, 13.3s Time] [2022-07-12 17:08:26,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79955 states.