./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--block--nvme.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/bin/utaipan-TEXQjIfE4P --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b25ac84d4a20a437c31c3bd685865b0db6f54088dab7ab415bb47113c804a34a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 22:46:45,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 22:46:45,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 22:46:45,633 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 22:46:45,634 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 22:46:45,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 22:46:45,640 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 22:46:45,644 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 22:46:45,646 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 22:46:45,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 22:46:45,653 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 22:46:45,654 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 22:46:45,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 22:46:45,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 22:46:45,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 22:46:45,663 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 22:46:45,665 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 22:46:45,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 22:46:45,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 22:46:45,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 22:46:45,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 22:46:45,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 22:46:45,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 22:46:45,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 22:46:45,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 22:46:45,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 22:46:45,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 22:46:45,695 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 22:46:45,695 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 22:46:45,697 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 22:46:45,697 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 22:46:45,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 22:46:45,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 22:46:45,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 22:46:45,703 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 22:46:45,703 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 22:46:45,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 22:46:45,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 22:46:45,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 22:46:45,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 22:46:45,706 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 22:46:45,706 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 22:46:45,745 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 22:46:45,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 22:46:45,746 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 22:46:45,747 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 22:46:45,748 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 22:46:45,748 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 22:46:45,748 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 22:46:45,748 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 22:46:45,749 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 22:46:45,749 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 22:46:45,750 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 22:46:45,750 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 22:46:45,750 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 22:46:45,751 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 22:46:45,751 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 22:46:45,751 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 22:46:45,751 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 22:46:45,752 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 22:46:45,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 22:46:45,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 22:46:45,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 22:46:45,753 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 22:46:45,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 22:46:45,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 22:46:45,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 22:46:45,754 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 22:46:45,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 22:46:45,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 22:46:45,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 22:46:45,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:46:45,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 22:46:45,755 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 22:46:45,756 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 22:46:45,756 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 22:46:45,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 22:46:45,756 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 22:46:45,756 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 22:46:45,757 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 22:46:45,757 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b25ac84d4a20a437c31c3bd685865b0db6f54088dab7ab415bb47113c804a34a [2021-11-20 22:46:46,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 22:46:46,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 22:46:46,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 22:46:46,065 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 22:46:46,066 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 22:46:46,067 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i [2021-11-20 22:46:46,152 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/bin/utaipan-TEXQjIfE4P/data/0829c3d8a/24a40da960ba40adb646a99222eaac3c/FLAGffce38691 [2021-11-20 22:46:47,232 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 22:46:47,233 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i [2021-11-20 22:46:47,309 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/bin/utaipan-TEXQjIfE4P/data/0829c3d8a/24a40da960ba40adb646a99222eaac3c/FLAGffce38691 [2021-11-20 22:46:47,484 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/bin/utaipan-TEXQjIfE4P/data/0829c3d8a/24a40da960ba40adb646a99222eaac3c [2021-11-20 22:46:47,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 22:46:47,487 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 22:46:47,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 22:46:47,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 22:46:47,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 22:46:47,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:46:47" (1/1) ... [2021-11-20 22:46:47,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42ec50d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:47, skipping insertion in model container [2021-11-20 22:46:47,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:46:47" (1/1) ... [2021-11-20 22:46:47,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 22:46:47,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 22:46:55,961 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[571462,571475] [2021-11-20 22:46:55,963 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[571607,571620] [2021-11-20 22:46:55,964 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[571753,571766] [2021-11-20 22:46:55,964 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[571918,571931] [2021-11-20 22:46:55,965 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572076,572089] [2021-11-20 22:46:55,965 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572234,572247] [2021-11-20 22:46:55,966 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572392,572405] [2021-11-20 22:46:55,966 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572552,572565] [2021-11-20 22:46:55,967 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572711,572724] [2021-11-20 22:46:55,967 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572850,572863] [2021-11-20 22:46:55,968 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572992,573005] [2021-11-20 22:46:55,968 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[573141,573154] [2021-11-20 22:46:55,969 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[573280,573293] [2021-11-20 22:46:55,969 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[573435,573448] [2021-11-20 22:46:55,969 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[573595,573608] [2021-11-20 22:46:55,970 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[573746,573759] [2021-11-20 22:46:55,970 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[573897,573910] [2021-11-20 22:46:55,971 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574049,574062] [2021-11-20 22:46:55,971 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574198,574211] [2021-11-20 22:46:55,972 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574346,574359] [2021-11-20 22:46:55,972 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574503,574516] [2021-11-20 22:46:55,973 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574652,574665] [2021-11-20 22:46:55,973 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574808,574821] [2021-11-20 22:46:55,974 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574961,574974] [2021-11-20 22:46:55,974 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575107,575120] [2021-11-20 22:46:55,975 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575250,575263] [2021-11-20 22:46:55,975 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575402,575415] [2021-11-20 22:46:55,976 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575548,575561] [2021-11-20 22:46:55,976 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575693,575706] [2021-11-20 22:46:55,977 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575847,575860] [2021-11-20 22:46:55,977 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575998,576011] [2021-11-20 22:46:55,977 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[576153,576166] [2021-11-20 22:46:55,978 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[576305,576318] [2021-11-20 22:46:55,978 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[576460,576473] [2021-11-20 22:46:55,979 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[576624,576637] [2021-11-20 22:46:55,979 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[576780,576793] [2021-11-20 22:46:55,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[576944,576957] [2021-11-20 22:46:55,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[577086,577099] [2021-11-20 22:46:55,981 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[577244,577257] [2021-11-20 22:46:55,981 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[577411,577424] [2021-11-20 22:46:55,982 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[577570,577583] [2021-11-20 22:46:55,982 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[577729,577742] [2021-11-20 22:46:55,982 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[577878,577891] [2021-11-20 22:46:55,983 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578025,578038] [2021-11-20 22:46:55,983 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578164,578177] [2021-11-20 22:46:55,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578327,578340] [2021-11-20 22:46:55,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578493,578506] [2021-11-20 22:46:55,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578657,578670] [2021-11-20 22:46:55,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578822,578835] [2021-11-20 22:46:55,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578987,579000] [2021-11-20 22:46:55,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[579153,579166] [2021-11-20 22:46:55,987 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[579318,579331] [2021-11-20 22:46:55,987 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[579485,579498] [2021-11-20 22:46:55,987 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[579645,579658] [2021-11-20 22:46:55,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[579807,579820] [2021-11-20 22:46:55,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[579966,579979] [2021-11-20 22:46:55,989 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580112,580125] [2021-11-20 22:46:55,989 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580255,580268] [2021-11-20 22:46:55,990 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580399,580412] [2021-11-20 22:46:55,990 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580542,580555] [2021-11-20 22:46:55,991 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580686,580699] [2021-11-20 22:46:55,991 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580827,580840] [2021-11-20 22:46:55,991 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580965,580978] [2021-11-20 22:46:55,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[581123,581136] [2021-11-20 22:46:55,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[581282,581295] [2021-11-20 22:46:55,993 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[581438,581451] [2021-11-20 22:46:55,993 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[581587,581600] [2021-11-20 22:46:55,994 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[581739,581752] [2021-11-20 22:46:55,994 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[581890,581903] [2021-11-20 22:46:55,994 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582039,582052] [2021-11-20 22:46:55,995 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582191,582204] [2021-11-20 22:46:55,995 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582339,582352] [2021-11-20 22:46:55,996 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582492,582505] [2021-11-20 22:46:55,996 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582643,582656] [2021-11-20 22:46:55,997 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582793,582806] [2021-11-20 22:46:55,997 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582940,582953] [2021-11-20 22:46:55,997 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[583091,583104] [2021-11-20 22:46:55,998 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[583242,583255] [2021-11-20 22:46:55,998 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[583390,583403] [2021-11-20 22:46:55,999 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[583556,583569] [2021-11-20 22:46:55,999 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[583725,583738] [2021-11-20 22:46:56,000 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[583892,583905] [2021-11-20 22:46:56,000 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[584060,584073] [2021-11-20 22:46:56,001 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[584210,584223] [2021-11-20 22:46:56,001 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[584357,584370] [2021-11-20 22:46:56,002 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[584518,584531] [2021-11-20 22:46:56,002 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[584688,584701] [2021-11-20 22:46:56,002 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[584850,584863] [2021-11-20 22:46:56,035 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:46:56,067 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 22:46:56,756 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[571462,571475] [2021-11-20 22:46:56,757 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[571607,571620] [2021-11-20 22:46:56,758 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[571753,571766] [2021-11-20 22:46:56,758 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[571918,571931] [2021-11-20 22:46:56,759 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572076,572089] [2021-11-20 22:46:56,759 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572234,572247] [2021-11-20 22:46:56,759 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572392,572405] [2021-11-20 22:46:56,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572552,572565] [2021-11-20 22:46:56,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572711,572724] [2021-11-20 22:46:56,761 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572850,572863] [2021-11-20 22:46:56,761 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572992,573005] [2021-11-20 22:46:56,762 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[573141,573154] [2021-11-20 22:46:56,762 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[573280,573293] [2021-11-20 22:46:56,763 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[573435,573448] [2021-11-20 22:46:56,763 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[573595,573608] [2021-11-20 22:46:56,763 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[573746,573759] [2021-11-20 22:46:56,764 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[573897,573910] [2021-11-20 22:46:56,764 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574049,574062] [2021-11-20 22:46:56,765 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574198,574211] [2021-11-20 22:46:56,765 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574346,574359] [2021-11-20 22:46:56,766 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574503,574516] [2021-11-20 22:46:56,766 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574652,574665] [2021-11-20 22:46:56,766 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574808,574821] [2021-11-20 22:46:56,767 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574961,574974] [2021-11-20 22:46:56,767 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575107,575120] [2021-11-20 22:46:56,768 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575250,575263] [2021-11-20 22:46:56,768 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575402,575415] [2021-11-20 22:46:56,768 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575548,575561] [2021-11-20 22:46:56,769 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575693,575706] [2021-11-20 22:46:56,769 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575847,575860] [2021-11-20 22:46:56,770 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575998,576011] [2021-11-20 22:46:56,770 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[576153,576166] [2021-11-20 22:46:56,770 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[576305,576318] [2021-11-20 22:46:56,771 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[576460,576473] [2021-11-20 22:46:56,771 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[576624,576637] [2021-11-20 22:46:56,772 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[576780,576793] [2021-11-20 22:46:56,772 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[576944,576957] [2021-11-20 22:46:56,773 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[577086,577099] [2021-11-20 22:46:56,773 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[577244,577257] [2021-11-20 22:46:56,773 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[577411,577424] [2021-11-20 22:46:56,774 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[577570,577583] [2021-11-20 22:46:56,774 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[577729,577742] [2021-11-20 22:46:56,775 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[577878,577891] [2021-11-20 22:46:56,775 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578025,578038] [2021-11-20 22:46:56,776 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578164,578177] [2021-11-20 22:46:56,776 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578327,578340] [2021-11-20 22:46:56,776 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578493,578506] [2021-11-20 22:46:56,777 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578657,578670] [2021-11-20 22:46:56,777 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578822,578835] [2021-11-20 22:46:56,778 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578987,579000] [2021-11-20 22:46:56,778 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[579153,579166] [2021-11-20 22:46:56,778 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[579318,579331] [2021-11-20 22:46:56,779 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[579485,579498] [2021-11-20 22:46:56,779 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[579645,579658] [2021-11-20 22:46:56,780 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[579807,579820] [2021-11-20 22:46:56,780 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[579966,579979] [2021-11-20 22:46:56,781 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580112,580125] [2021-11-20 22:46:56,781 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580255,580268] [2021-11-20 22:46:56,781 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580399,580412] [2021-11-20 22:46:56,782 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580542,580555] [2021-11-20 22:46:56,782 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580686,580699] [2021-11-20 22:46:56,783 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580827,580840] [2021-11-20 22:46:56,783 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580965,580978] [2021-11-20 22:46:56,784 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[581123,581136] [2021-11-20 22:46:56,784 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[581282,581295] [2021-11-20 22:46:56,785 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[581438,581451] [2021-11-20 22:46:56,785 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[581587,581600] [2021-11-20 22:46:56,785 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[581739,581752] [2021-11-20 22:46:56,786 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[581890,581903] [2021-11-20 22:46:56,786 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582039,582052] [2021-11-20 22:46:56,787 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582191,582204] [2021-11-20 22:46:56,787 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582339,582352] [2021-11-20 22:46:56,788 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582492,582505] [2021-11-20 22:46:56,788 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582643,582656] [2021-11-20 22:46:56,788 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582793,582806] [2021-11-20 22:46:56,789 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582940,582953] [2021-11-20 22:46:56,789 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[583091,583104] [2021-11-20 22:46:56,790 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[583242,583255] [2021-11-20 22:46:56,790 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[583390,583403] [2021-11-20 22:46:56,790 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[583556,583569] [2021-11-20 22:46:56,791 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[583725,583738] [2021-11-20 22:46:56,791 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[583892,583905] [2021-11-20 22:46:56,792 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[584060,584073] [2021-11-20 22:46:56,792 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[584210,584223] [2021-11-20 22:46:56,792 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[584357,584370] [2021-11-20 22:46:56,793 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[584518,584531] [2021-11-20 22:46:56,793 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[584688,584701] [2021-11-20 22:46:56,794 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[584850,584863] [2021-11-20 22:46:56,802 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:46:57,287 INFO L208 MainTranslator]: Completed translation [2021-11-20 22:46:57,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:57 WrapperNode [2021-11-20 22:46:57,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 22:46:57,289 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 22:46:57,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 22:46:57,290 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 22:46:57,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:57" (1/1) ... [2021-11-20 22:46:57,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:57" (1/1) ... [2021-11-20 22:46:58,004 INFO L137 Inliner]: procedures = 984, calls = 4896, calls flagged for inlining = 497, calls inlined = 414, statements flattened = 12961 [2021-11-20 22:46:58,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 22:46:58,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 22:46:58,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 22:46:58,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 22:46:58,014 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:57" (1/1) ... [2021-11-20 22:46:58,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:57" (1/1) ... [2021-11-20 22:46:58,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:57" (1/1) ... [2021-11-20 22:46:58,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:57" (1/1) ... [2021-11-20 22:46:58,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:57" (1/1) ... [2021-11-20 22:46:58,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:57" (1/1) ... [2021-11-20 22:46:58,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:57" (1/1) ... [2021-11-20 22:46:58,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 22:46:58,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 22:46:58,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 22:46:58,631 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 22:46:58,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:57" (1/1) ... [2021-11-20 22:46:58,639 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:46:58,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:46:58,664 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 22:46:58,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 22:46:58,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_127 [2021-11-20 22:46:58,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_127 [2021-11-20 22:46:58,713 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-20 22:46:58,713 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_dev_unmap [2021-11-20 22:46:58,713 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_dev_unmap [2021-11-20 22:46:58,713 INFO L130 BoogieDeclarations]: Found specification of procedure queue_kthread_work [2021-11-20 22:46:58,713 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_kthread_work [2021-11-20 22:46:58,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_queue_lock_of_request_queue [2021-11-20 22:46:58,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_queue_lock_of_request_queue [2021-11-20 22:46:58,714 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_trans_fill_inf_exc_page [2021-11-20 22:46:58,714 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_trans_fill_inf_exc_page [2021-11-20 22:46:58,716 INFO L130 BoogieDeclarations]: Found specification of procedure adapter_delete_cq [2021-11-20 22:46:58,716 INFO L138 BoogieDeclarations]: Found implementation of procedure adapter_delete_cq [2021-11-20 22:46:58,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-20 22:46:58,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-20 22:46:58,716 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2021-11-20 22:46:58,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2021-11-20 22:46:58,717 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_setup_prps [2021-11-20 22:46:58,717 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_setup_prps [2021-11-20 22:46:58,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-20 22:46:58,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-20 22:46:58,717 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-20 22:46:58,718 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-20 22:46:58,718 INFO L130 BoogieDeclarations]: Found specification of procedure queue_flag_set_unlocked [2021-11-20 22:46:58,718 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_flag_set_unlocked [2021-11-20 22:46:58,718 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_suspend [2021-11-20 22:46:58,718 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_suspend [2021-11-20 22:46:58,718 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_trans_copy_to_user [2021-11-20 22:46:58,718 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_trans_copy_to_user [2021-11-20 22:46:58,719 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_release_instance [2021-11-20 22:46:58,719 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_release_instance [2021-11-20 22:46:58,719 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-20 22:46:58,719 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-20 22:46:58,719 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2021-11-20 22:46:58,719 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2021-11-20 22:46:58,720 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_submit_cmd [2021-11-20 22:46:58,720 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_submit_cmd [2021-11-20 22:46:58,720 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_dev_resume [2021-11-20 22:46:58,720 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_dev_resume [2021-11-20 22:46:58,721 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_dev_start [2021-11-20 22:46:58,721 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_dev_start [2021-11-20 22:46:58,721 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-20 22:46:58,721 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-20 22:46:58,721 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_table [2021-11-20 22:46:58,721 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_table [2021-11-20 22:46:58,722 INFO L130 BoogieDeclarations]: Found specification of procedure blk_integrity_unregister [2021-11-20 22:46:58,722 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_integrity_unregister [2021-11-20 22:46:58,722 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-20 22:46:58,722 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-20 22:46:58,722 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_dif_remap [2021-11-20 22:46:58,722 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_dif_remap [2021-11-20 22:46:58,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-20 22:46:58,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-20 22:46:58,723 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_identify [2021-11-20 22:46:58,723 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_identify [2021-11-20 22:46:58,723 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-20 22:46:58,723 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-20 22:46:58,724 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_dev_ioctl [2021-11-20 22:46:58,724 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_dev_ioctl [2021-11-20 22:46:58,724 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-20 22:46:58,724 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-20 22:46:58,724 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2021-11-20 22:46:58,725 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2021-11-20 22:46:58,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_106 [2021-11-20 22:46:58,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_106 [2021-11-20 22:46:58,726 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2021-11-20 22:46:58,728 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2021-11-20 22:46:58,729 INFO L130 BoogieDeclarations]: Found specification of procedure db_bar_size [2021-11-20 22:46:58,729 INFO L138 BoogieDeclarations]: Found implementation of procedure db_bar_size [2021-11-20 22:46:58,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-20 22:46:58,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-20 22:46:58,730 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_process_cq [2021-11-20 22:46:58,730 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_process_cq [2021-11-20 22:46:58,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-20 22:46:58,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-20 22:46:58,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 22:46:58,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-20 22:46:58,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-20 22:46:58,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-20 22:46:58,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-20 22:46:58,737 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_free_queues [2021-11-20 22:46:58,737 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_free_queues [2021-11-20 22:46:58,737 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2021-11-20 22:46:58,737 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2021-11-20 22:46:58,737 INFO L130 BoogieDeclarations]: Found specification of procedure queue_request_irq [2021-11-20 22:46:58,737 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_request_irq [2021-11-20 22:46:58,737 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_alloc_tag_set [2021-11-20 22:46:58,738 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_alloc_tag_set [2021-11-20 22:46:58,738 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-20 22:46:58,738 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-20 22:46:58,738 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-20 22:46:58,738 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-20 22:46:58,738 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2021-11-20 22:46:58,738 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2021-11-20 22:46:58,739 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc_node [2021-11-20 22:46:58,739 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc_node [2021-11-20 22:46:58,739 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-20 22:46:58,740 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-20 22:46:58,740 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_init_queue [2021-11-20 22:46:58,740 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_init_queue [2021-11-20 22:46:58,740 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2021-11-20 22:46:58,740 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2021-11-20 22:46:58,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-20 22:46:58,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-20 22:46:58,741 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get_unless_zero [2021-11-20 22:46:58,741 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get_unless_zero [2021-11-20 22:46:58,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_check_return_value_probe [2021-11-20 22:46:58,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_check_return_value_probe [2021-11-20 22:46:58,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 22:46:58,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-20 22:46:58,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-20 22:46:58,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_check_return_value_probe [2021-11-20 22:46:58,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_check_return_value_probe [2021-11-20 22:46:58,742 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-20 22:46:58,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-20 22:46:58,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 22:46:58,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 22:46:58,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 22:46:58,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 22:46:58,744 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2021-11-20 22:46:58,744 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2021-11-20 22:46:58,744 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 22:46:58,744 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_del_queue_end [2021-11-20 22:46:58,744 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_del_queue_end [2021-11-20 22:46:58,744 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-20 22:46:58,745 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-20 22:46:58,745 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_trans_fill_control_page [2021-11-20 22:46:58,745 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_trans_fill_control_page [2021-11-20 22:46:58,745 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_bytes [2021-11-20 22:46:58,746 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_bytes [2021-11-20 22:46:58,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_threaded_irq [2021-11-20 22:46:58,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_threaded_irq [2021-11-20 22:46:58,746 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2021-11-20 22:46:58,746 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2021-11-20 22:46:58,746 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_dev_list_remove [2021-11-20 22:46:58,746 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_dev_list_remove [2021-11-20 22:46:58,747 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 22:46:58,747 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 22:46:58,747 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_unmap_user_pages [2021-11-20 22:46:58,747 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_unmap_user_pages [2021-11-20 22:46:58,747 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_clear_queue [2021-11-20 22:46:58,747 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_clear_queue [2021-11-20 22:46:58,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 22:46:58,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 22:46:58,748 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_cmd_size [2021-11-20 22:46:58,748 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_cmd_size [2021-11-20 22:46:58,748 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-20 22:46:58,748 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-20 22:46:58,748 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_wait_ready [2021-11-20 22:46:58,748 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_wait_ready [2021-11-20 22:46:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_revalidate_disk [2021-11-20 22:46:58,749 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_revalidate_disk [2021-11-20 22:46:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-20 22:46:58,749 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-20 22:46:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 22:46:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_set_info [2021-11-20 22:46:58,749 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_set_info [2021-11-20 22:46:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-20 22:46:58,750 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-20 22:46:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_set_irq_hints [2021-11-20 22:46:58,750 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_set_irq_hints [2021-11-20 22:46:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-11-20 22:46:58,750 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-11-20 22:46:58,751 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_sg_attrs [2021-11-20 22:46:58,751 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_sg_attrs [2021-11-20 22:46:58,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-20 22:46:58,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-20 22:46:58,751 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-11-20 22:46:58,751 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-11-20 22:46:58,751 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_freeze_queue_start [2021-11-20 22:46:58,752 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_freeze_queue_start [2021-11-20 22:46:58,752 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_init_queue [2021-11-20 22:46:58,752 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_init_queue [2021-11-20 22:46:58,752 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_trans_io [2021-11-20 22:46:58,752 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_trans_io [2021-11-20 22:46:58,752 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2021-11-20 22:46:58,752 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2021-11-20 22:46:58,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 22:46:58,753 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 22:46:58,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-20 22:46:58,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-20 22:46:58,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-20 22:46:58,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-20 22:46:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_dev_list_lock [2021-11-20 22:46:58,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_dev_list_lock [2021-11-20 22:46:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-20 22:46:58,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-20 22:46:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-20 22:46:58,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-20 22:46:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-20 22:46:58,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-20 22:46:58,755 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_node [2021-11-20 22:46:58,756 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_node [2021-11-20 22:46:58,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 22:46:58,758 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-20 22:46:58,758 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-20 22:46:58,758 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_remove [2021-11-20 22:46:58,758 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_remove [2021-11-20 22:46:58,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-20 22:46:58,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-20 22:46:58,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_base_class__double_registration [2021-11-20 22:46:58,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_base_class__double_registration [2021-11-20 22:46:58,760 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_rq_to_pdu [2021-11-20 22:46:58,760 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_rq_to_pdu [2021-11-20 22:46:58,760 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-20 22:46:58,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-20 22:46:58,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 22:46:58,761 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-11-20 22:46:58,761 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-11-20 22:46:58,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_destroy_class [2021-11-20 22:46:58,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_destroy_class [2021-11-20 22:46:58,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_dev_list_lock [2021-11-20 22:46:58,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_dev_list_lock [2021-11-20 22:46:58,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_q_lock_of_nvme_queue [2021-11-20 22:46:58,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_q_lock_of_nvme_queue [2021-11-20 22:46:58,762 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-20 22:46:58,762 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-20 22:46:58,762 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_free_request [2021-11-20 22:46:58,762 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_free_request [2021-11-20 22:46:58,763 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_submit_admin_cmd [2021-11-20 22:46:58,763 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_submit_admin_cmd [2021-11-20 22:46:58,763 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-20 22:46:58,763 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-20 22:46:58,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-20 22:46:58,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-20 22:46:58,763 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-20 22:46:58,764 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-20 22:46:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_trans_copy_from_user [2021-11-20 22:46:58,764 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_trans_copy_from_user [2021-11-20 22:46:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-20 22:46:58,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-20 22:46:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-20 22:46:58,765 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-20 22:46:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-20 22:46:58,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-20 22:46:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-20 22:46:58,765 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-20 22:46:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 22:46:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_kick_requeue_list [2021-11-20 22:46:58,766 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_kick_requeue_list [2021-11-20 22:46:58,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 22:46:58,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 22:46:58,766 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_affinity_hint [2021-11-20 22:46:58,766 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_affinity_hint [2021-11-20 22:46:58,766 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_worker_fn [2021-11-20 22:46:58,766 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2021-11-20 22:46:58,767 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2021-11-20 22:46:58,767 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_disable_queue [2021-11-20 22:46:58,767 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_disable_queue [2021-11-20 22:46:58,767 INFO L130 BoogieDeclarations]: Found specification of procedure iod_list [2021-11-20 22:46:58,767 INFO L138 BoogieDeclarations]: Found implementation of procedure iod_list [2021-11-20 22:46:58,767 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_shutdown [2021-11-20 22:46:58,767 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_shutdown [2021-11-20 22:46:58,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_126 [2021-11-20 22:46:58,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_126 [2021-11-20 22:46:58,768 INFO L130 BoogieDeclarations]: Found specification of procedure __nvme_alloc_iod [2021-11-20 22:46:58,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __nvme_alloc_iod [2021-11-20 22:46:58,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_q_lock_of_nvme_queue [2021-11-20 22:46:58,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_q_lock_of_nvme_queue [2021-11-20 22:46:58,769 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-20 22:46:58,769 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-20 22:46:58,769 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_free_hctx_request [2021-11-20 22:46:58,769 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_free_hctx_request [2021-11-20 22:46:58,769 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_trans_status_code [2021-11-20 22:46:58,769 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_trans_status_code [2021-11-20 22:46:58,769 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2021-11-20 22:46:58,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2021-11-20 22:46:58,770 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_free_iod [2021-11-20 22:46:58,770 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_free_iod [2021-11-20 22:46:58,770 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-11-20 22:46:58,770 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-11-20 22:46:58,770 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2021-11-20 22:46:58,770 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2021-11-20 22:46:58,771 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-20 22:46:58,771 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-20 22:46:58,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_usb_gadget__class_registration_with_usb_gadget [2021-11-20 22:46:58,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_usb_gadget__class_registration_with_usb_gadget [2021-11-20 22:46:58,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-20 22:46:58,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-20 22:46:58,771 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2021-11-20 22:46:58,772 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2021-11-20 22:46:58,772 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-20 22:46:58,772 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-20 22:46:58,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 22:46:58,772 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 22:46:58,772 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_complete_request [2021-11-20 22:46:58,773 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_complete_request [2021-11-20 22:46:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-20 22:46:58,773 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-20 22:46:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 22:46:58,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 22:46:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-20 22:46:58,773 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-20 22:46:58,774 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_trans_fill_caching_page [2021-11-20 22:46:58,774 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_trans_fill_caching_page [2021-11-20 22:46:58,774 INFO L130 BoogieDeclarations]: Found specification of procedure __nvme_submit_cmd [2021-11-20 22:46:58,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __nvme_submit_cmd [2021-11-20 22:46:58,774 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_sg_attrs [2021-11-20 22:46:58,774 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_sg_attrs [2021-11-20 22:46:58,774 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_get_features [2021-11-20 22:46:58,775 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_get_features [2021-11-20 22:46:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_unfreeze_queue [2021-11-20 22:46:58,775 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_unfreeze_queue [2021-11-20 22:46:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-20 22:46:58,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-20 22:46:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-20 22:46:58,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-20 22:46:58,776 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_trans_read_capacity [2021-11-20 22:46:58,776 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_trans_read_capacity [2021-11-20 22:46:58,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-20 22:46:58,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-20 22:46:58,776 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_logical_block_size [2021-11-20 22:46:58,776 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_logical_block_size [2021-11-20 22:46:58,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 22:46:58,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 22:46:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-20 22:46:58,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-20 22:46:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2021-11-20 22:46:58,777 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2021-11-20 22:46:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 22:46:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-20 22:46:58,778 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-20 22:46:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure iod_get_private [2021-11-20 22:46:58,778 INFO L138 BoogieDeclarations]: Found implementation of procedure iod_get_private [2021-11-20 22:46:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_dev_remove_admin [2021-11-20 22:46:58,778 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_dev_remove_admin [2021-11-20 22:46:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure adapter_delete_queue [2021-11-20 22:46:58,779 INFO L138 BoogieDeclarations]: Found implementation of procedure adapter_delete_queue [2021-11-20 22:46:58,779 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-20 22:46:58,779 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-20 22:46:58,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 22:46:58,779 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_free_tag_set [2021-11-20 22:46:58,779 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_free_tag_set [2021-11-20 22:46:58,779 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-20 22:46:58,780 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-20 22:46:58,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 22:46:58,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_blk_cleanup_queue [2021-11-20 22:46:58,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_blk_cleanup_queue [2021-11-20 22:46:58,780 INFO L130 BoogieDeclarations]: Found specification of procedure __nvme_submit_admin_cmd [2021-11-20 22:46:58,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __nvme_submit_admin_cmd [2021-11-20 22:46:58,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-20 22:46:58,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-20 22:46:58,781 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_trans_fill_pow_cnd_page [2021-11-20 22:46:58,781 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_trans_fill_pow_cnd_page [2021-11-20 22:46:58,781 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_disable_ctrl [2021-11-20 22:46:58,781 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_disable_ctrl [2021-11-20 22:46:58,781 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_empty [2021-11-20 22:46:58,782 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_empty [2021-11-20 22:46:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-20 22:46:58,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-20 22:46:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 22:46:58,782 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 22:46:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-20 22:46:58,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-20 22:46:58,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-20 22:46:58,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-20 22:46:58,783 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_resume [2021-11-20 22:46:58,783 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_resume [2021-11-20 22:46:58,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-20 22:46:58,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-20 22:46:58,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_1 [2021-11-20 22:46:58,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_1 [2021-11-20 22:46:58,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_2 [2021-11-20 22:46:58,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_2 [2021-11-20 22:46:58,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-20 22:46:58,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-20 22:46:58,784 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_reset_failed_dev [2021-11-20 22:46:58,785 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_reset_failed_dev [2021-11-20 22:46:58,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_queue_lock_of_request_queue [2021-11-20 22:46:58,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_queue_lock_of_request_queue [2021-11-20 22:46:58,785 INFO L130 BoogieDeclarations]: Found specification of procedure blk_integrity_rq [2021-11-20 22:46:58,785 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_integrity_rq [2021-11-20 22:46:58,785 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2021-11-20 22:46:58,785 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2021-11-20 22:46:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 22:46:58,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 22:46:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-20 22:46:58,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-20 22:46:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure fatal_signal_pending [2021-11-20 22:46:58,786 INFO L138 BoogieDeclarations]: Found implementation of procedure fatal_signal_pending [2021-11-20 22:46:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_alloc_queue [2021-11-20 22:46:58,787 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_alloc_queue [2021-11-20 22:46:58,787 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-20 22:46:58,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-20 22:46:58,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-20 22:46:58,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-20 22:46:58,787 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_submit_io_cmd [2021-11-20 22:46:58,787 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_submit_io_cmd [2021-11-20 22:46:58,788 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-20 22:46:58,788 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-20 22:46:58,788 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-11-20 22:46:58,788 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-11-20 22:46:58,788 INFO L130 BoogieDeclarations]: Found specification of procedure writeq [2021-11-20 22:46:58,788 INFO L138 BoogieDeclarations]: Found implementation of procedure writeq [2021-11-20 22:46:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-20 22:46:58,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-20 22:46:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-11-20 22:46:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-20 22:46:58,789 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-20 22:46:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_alloc_request [2021-11-20 22:46:58,789 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_alloc_request [2021-11-20 22:46:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 22:46:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 22:46:58,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 22:46:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-20 22:46:58,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-20 22:46:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_destroy_class [2021-11-20 22:46:58,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_destroy_class [2021-11-20 22:46:58,791 INFO L130 BoogieDeclarations]: Found specification of procedure adapter_delete_sq [2021-11-20 22:46:58,791 INFO L138 BoogieDeclarations]: Found implementation of procedure adapter_delete_sq [2021-11-20 22:46:58,791 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-20 22:46:58,791 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-20 22:46:58,791 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msix [2021-11-20 22:46:58,791 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msix [2021-11-20 22:46:58,792 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2021-11-20 22:46:58,792 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2021-11-20 22:46:58,792 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2021-11-20 22:46:58,792 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2021-11-20 22:46:58,792 INFO L130 BoogieDeclarations]: Found specification of procedure __le64_to_cpup [2021-11-20 22:46:58,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __le64_to_cpup [2021-11-20 22:46:58,792 INFO L130 BoogieDeclarations]: Found specification of procedure work_busy [2021-11-20 22:46:58,793 INFO L138 BoogieDeclarations]: Found implementation of procedure work_busy [2021-11-20 22:46:58,793 INFO L130 BoogieDeclarations]: Found specification of procedure adapter_async_del_queue [2021-11-20 22:46:58,793 INFO L138 BoogieDeclarations]: Found implementation of procedure adapter_async_del_queue [2021-11-20 22:46:58,793 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2021-11-20 22:46:58,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2021-11-20 22:46:58,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 22:46:58,793 INFO L130 BoogieDeclarations]: Found specification of procedure __unregister_chrdev [2021-11-20 22:46:58,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __unregister_chrdev [2021-11-20 22:46:58,794 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-20 22:46:58,794 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-20 22:46:58,794 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-20 22:46:58,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-20 22:46:58,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-20 22:46:58,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-20 22:46:58,795 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_user_cmd [2021-11-20 22:46:58,795 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_user_cmd [2021-11-20 22:46:58,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-20 22:46:58,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-20 22:46:58,795 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_block_nr [2021-11-20 22:46:58,795 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_block_nr [2021-11-20 22:46:58,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-20 22:46:58,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-20 22:46:58,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-20 22:46:58,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-20 22:46:58,796 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_reset_workfn [2021-11-20 22:46:58,796 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_reset_workfn [2021-11-20 22:46:58,796 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2021-11-20 22:46:58,797 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2021-11-20 22:46:58,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_105 [2021-11-20 22:46:58,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_105 [2021-11-20 22:46:58,797 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-20 22:46:58,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-20 22:46:58,797 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_submit_sync_cmd [2021-11-20 22:46:58,797 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_submit_sync_cmd [2021-11-20 22:46:58,798 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_dev_shutdown [2021-11-20 22:46:58,798 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_dev_shutdown [2021-11-20 22:46:58,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-20 22:46:58,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-20 22:46:58,798 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_npages [2021-11-20 22:46:58,798 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_npages [2021-11-20 22:46:58,799 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 22:46:58,799 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 22:46:58,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-20 22:46:58,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-20 22:46:58,799 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_map_user_pages [2021-11-20 22:46:58,799 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_map_user_pages [2021-11-20 22:46:58,799 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_dev_remove [2021-11-20 22:46:58,800 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_dev_remove [2021-11-20 22:46:58,800 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-20 22:46:58,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-20 22:46:58,800 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_ioctl [2021-11-20 22:46:58,800 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_ioctl [2021-11-20 22:46:58,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-20 22:46:58,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-20 22:46:58,801 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_release_prp_pools [2021-11-20 22:46:58,801 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_release_prp_pools [2021-11-20 22:46:58,801 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_trans_mode_page_create [2021-11-20 22:46:58,801 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_trans_mode_page_create [2021-11-20 22:46:58,801 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-20 22:46:58,801 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-20 22:46:58,802 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-20 22:46:58,802 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-20 22:46:58,802 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_trans_send_fw_cmd [2021-11-20 22:46:58,802 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_trans_send_fw_cmd [2021-11-20 22:46:58,802 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2021-11-20 22:46:58,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2021-11-20 22:46:58,802 INFO L130 BoogieDeclarations]: Found specification of procedure iod_init [2021-11-20 22:46:58,803 INFO L138 BoogieDeclarations]: Found implementation of procedure iod_init [2021-11-20 22:46:58,803 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_dev_reset [2021-11-20 22:46:58,803 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_dev_reset [2021-11-20 22:46:58,803 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2021-11-20 22:46:58,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2021-11-20 22:46:58,803 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-11-20 22:46:58,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-11-20 22:46:58,804 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-20 22:46:58,804 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-20 22:46:58,804 INFO L130 BoogieDeclarations]: Found specification of procedure queue_logical_block_size [2021-11-20 22:46:58,804 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_logical_block_size [2021-11-20 22:46:58,804 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_suspend_queue [2021-11-20 22:46:58,804 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_suspend_queue [2021-11-20 22:46:58,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-20 22:46:58,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-20 22:46:58,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-20 22:46:58,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-20 22:46:58,805 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_trans_completion [2021-11-20 22:46:58,805 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_trans_completion [2021-11-20 22:46:58,805 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-20 22:46:58,806 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-20 22:46:58,806 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_set_features [2021-11-20 22:46:58,806 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_set_features [2021-11-20 22:46:58,806 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-20 22:46:58,806 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-20 22:46:58,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 22:46:58,806 INFO L130 BoogieDeclarations]: Found specification of procedure readq [2021-11-20 22:46:58,807 INFO L138 BoogieDeclarations]: Found implementation of procedure readq [2021-11-20 22:46:58,807 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2021-11-20 22:46:58,807 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2021-11-20 22:46:58,807 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-20 22:47:00,383 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 22:47:00,389 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 22:47:16,291 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 22:47:36,878 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 22:47:39,794 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 22:47:39,794 INFO L301 CfgBuilder]: Removed 10 assume(true) statements. [2021-11-20 22:47:39,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:47:39 BoogieIcfgContainer [2021-11-20 22:47:39,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 22:47:39,805 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 22:47:39,805 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 22:47:39,809 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 22:47:39,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:46:47" (1/3) ... [2021-11-20 22:47:39,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd7d97a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:47:39, skipping insertion in model container [2021-11-20 22:47:39,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:57" (2/3) ... [2021-11-20 22:47:39,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd7d97a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:47:39, skipping insertion in model container [2021-11-20 22:47:39,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:47:39" (3/3) ... [2021-11-20 22:47:39,812 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--block--nvme.ko.cil.i [2021-11-20 22:47:39,818 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 22:47:39,818 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2021-11-20 22:47:39,896 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 22:47:39,903 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 22:47:39,906 INFO L340 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2021-11-20 22:47:40,008 INFO L276 IsEmpty]: Start isEmpty. Operand has 3388 states, 2034 states have (on average 1.316125860373648) internal successors, (2677), 2141 states have internal predecessors, (2677), 1074 states have call successors, (1074), 249 states have call predecessors, (1074), 248 states have return successors, (1066), 1057 states have call predecessors, (1066), 1066 states have call successors, (1066) [2021-11-20 22:47:40,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-20 22:47:40,016 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:47:40,017 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 22:47:40,017 INFO L402 AbstractCegarLoop]: === Iteration 1 === 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 34 more)] === [2021-11-20 22:47:40,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:47:40,022 INFO L85 PathProgramCache]: Analyzing trace with hash -475537702, now seen corresponding path program 1 times [2021-11-20 22:47:40,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:47:40,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346198630] [2021-11-20 22:47:40,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:47:40,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:47:40,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:47:40,746 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 22:47:40,746 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:47:40,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346198630] [2021-11-20 22:47:40,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346198630] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:47:40,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:47:40,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:47:40,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210823071] [2021-11-20 22:47:40,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:47:40,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:47:40,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:47:40,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:47:40,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:47:40,802 INFO L87 Difference]: Start difference. First operand has 3388 states, 2034 states have (on average 1.316125860373648) internal successors, (2677), 2141 states have internal predecessors, (2677), 1074 states have call successors, (1074), 249 states have call predecessors, (1074), 248 states have return successors, (1066), 1057 states have call predecessors, (1066), 1066 states have call successors, (1066) Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 22:47:44,042 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:47:46,317 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:47:48,368 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:47:50,686 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:47:58,577 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:48:02,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:48:02,078 INFO L93 Difference]: Finished difference Result 9911 states and 14713 transitions. [2021-11-20 22:48:02,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 22:48:02,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 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 38 [2021-11-20 22:48:02,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:48:02,174 INFO L225 Difference]: With dead ends: 9911 [2021-11-20 22:48:02,174 INFO L226 Difference]: Without dead ends: 6522 [2021-11-20 22:48:02,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:48:02,230 INFO L933 BasicCegarLoop]: 5258 mSDtfsCounter, 4487 mSDsluCounter, 10587 mSDsCounter, 0 mSdLazyCounter, 1797 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4495 SdHoareTripleChecker+Valid, 14668 SdHoareTripleChecker+Invalid, 1803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1797 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.6s IncrementalHoareTripleChecker+Time [2021-11-20 22:48:02,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4495 Valid, 14668 Invalid, 1803 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1797 Invalid, 5 Unknown, 0 Unchecked, 20.6s Time] [2021-11-20 22:48:02,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6522 states. [2021-11-20 22:48:02,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6522 to 6331. [2021-11-20 22:48:02,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6331 states, 3812 states have (on average 1.2932843651626442) internal successors, (4930), 3987 states have internal predecessors, (4930), 2010 states have call successors, (2010), 475 states have call predecessors, (2010), 473 states have return successors, (2067), 1986 states have call predecessors, (2067), 2008 states have call successors, (2067) [2021-11-20 22:48:02,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6331 states to 6331 states and 9007 transitions. [2021-11-20 22:48:02,748 INFO L78 Accepts]: Start accepts. Automaton has 6331 states and 9007 transitions. Word has length 38 [2021-11-20 22:48:02,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:48:02,749 INFO L470 AbstractCegarLoop]: Abstraction has 6331 states and 9007 transitions. [2021-11-20 22:48:02,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 22:48:02,749 INFO L276 IsEmpty]: Start isEmpty. Operand 6331 states and 9007 transitions. [2021-11-20 22:48:02,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-20 22:48:02,758 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:48:02,759 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 22:48:02,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 22:48:02,760 INFO L402 AbstractCegarLoop]: === Iteration 2 === 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 34 more)] === [2021-11-20 22:48:02,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:48:02,763 INFO L85 PathProgramCache]: Analyzing trace with hash -162049647, now seen corresponding path program 1 times [2021-11-20 22:48:02,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:48:02,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501399651] [2021-11-20 22:48:02,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:48:02,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:48:02,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:48:03,007 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 22:48:03,007 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:48:03,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501399651] [2021-11-20 22:48:03,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501399651] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:48:03,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:48:03,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:48:03,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912472076] [2021-11-20 22:48:03,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:48:03,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:48:03,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:48:03,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:48:03,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:48:03,011 INFO L87 Difference]: Start difference. First operand 6331 states and 9007 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-20 22:48:05,969 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:08,196 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:10,240 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:11,617 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:48:12,753 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:48:19,850 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:48:23,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:48:23,578 INFO L93 Difference]: Finished difference Result 12531 states and 18030 transitions. [2021-11-20 22:48:23,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 22:48:23,579 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 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 43 [2021-11-20 22:48:23,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:48:23,688 INFO L225 Difference]: With dead ends: 12531 [2021-11-20 22:48:23,688 INFO L226 Difference]: Without dead ends: 12529 [2021-11-20 22:48:23,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:48:23,698 INFO L933 BasicCegarLoop]: 5200 mSDtfsCounter, 4537 mSDsluCounter, 10470 mSDsCounter, 0 mSdLazyCounter, 1777 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4548 SdHoareTripleChecker+Valid, 14504 SdHoareTripleChecker+Invalid, 1784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1777 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.9s IncrementalHoareTripleChecker+Time [2021-11-20 22:48:23,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4548 Valid, 14504 Invalid, 1784 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1777 Invalid, 4 Unknown, 0 Unchecked, 19.9s Time] [2021-11-20 22:48:23,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12529 states. [2021-11-20 22:48:24,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12529 to 12333. [2021-11-20 22:48:24,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12333 states, 7430 states have (on average 1.2944818304172274) internal successors, (9618), 7746 states have internal predecessors, (9618), 3938 states have call successors, (3938), 932 states have call predecessors, (3938), 929 states have return successors, (4270), 3886 states have call predecessors, (4270), 3936 states have call successors, (4270) [2021-11-20 22:48:24,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12333 states to 12333 states and 17826 transitions. [2021-11-20 22:48:24,426 INFO L78 Accepts]: Start accepts. Automaton has 12333 states and 17826 transitions. Word has length 43 [2021-11-20 22:48:24,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:48:24,427 INFO L470 AbstractCegarLoop]: Abstraction has 12333 states and 17826 transitions. [2021-11-20 22:48:24,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-20 22:48:24,428 INFO L276 IsEmpty]: Start isEmpty. Operand 12333 states and 17826 transitions. [2021-11-20 22:48:24,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-20 22:48:24,434 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:48:24,434 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 22:48:24,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 22:48:24,435 INFO L402 AbstractCegarLoop]: === Iteration 3 === 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 34 more)] === [2021-11-20 22:48:24,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:48:24,436 INFO L85 PathProgramCache]: Analyzing trace with hash -296196049, now seen corresponding path program 1 times [2021-11-20 22:48:24,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:48:24,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973241283] [2021-11-20 22:48:24,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:48:24,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:48:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:48:24,724 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 22:48:24,724 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:48:24,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973241283] [2021-11-20 22:48:24,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973241283] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:48:24,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:48:24,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 22:48:24,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578744319] [2021-11-20 22:48:24,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:48:24,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 22:48:24,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:48:24,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 22:48:24,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:48:24,726 INFO L87 Difference]: Start difference. First operand 12333 states and 17826 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 22:48:27,779 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:30,362 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:32,411 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:33,947 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:48:43,087 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:48:45,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:48:45,498 INFO L93 Difference]: Finished difference Result 19960 states and 28491 transitions. [2021-11-20 22:48:45,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 22:48:45,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (8), 2 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 43 [2021-11-20 22:48:45,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:48:45,642 INFO L225 Difference]: With dead ends: 19960 [2021-11-20 22:48:45,642 INFO L226 Difference]: Without dead ends: 19958 [2021-11-20 22:48:45,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 22:48:45,657 INFO L933 BasicCegarLoop]: 4967 mSDtfsCounter, 4509 mSDsluCounter, 14122 mSDsCounter, 0 mSdLazyCounter, 2269 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4519 SdHoareTripleChecker+Valid, 17458 SdHoareTripleChecker+Invalid, 2275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2269 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.2s IncrementalHoareTripleChecker+Time [2021-11-20 22:48:45,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4519 Valid, 17458 Invalid, 2275 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2269 Invalid, 4 Unknown, 0 Unchecked, 20.2s Time] [2021-11-20 22:48:45,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19958 states. [2021-11-20 22:48:46,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19958 to 19724. [2021-11-20 22:48:46,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19724 states, 11696 states have (on average 1.2781292749658002) internal successors, (14949), 12198 states have internal predecessors, (14949), 6308 states have call successors, (6308), 1689 states have call predecessors, (6308), 1685 states have return successors, (6982), 6212 states have call predecessors, (6982), 6306 states have call successors, (6982) [2021-11-20 22:48:46,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19724 states to 19724 states and 28239 transitions. [2021-11-20 22:48:46,832 INFO L78 Accepts]: Start accepts. Automaton has 19724 states and 28239 transitions. Word has length 43 [2021-11-20 22:48:46,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:48:46,833 INFO L470 AbstractCegarLoop]: Abstraction has 19724 states and 28239 transitions. [2021-11-20 22:48:46,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 22:48:46,833 INFO L276 IsEmpty]: Start isEmpty. Operand 19724 states and 28239 transitions. [2021-11-20 22:48:46,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-20 22:48:46,835 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:48:46,836 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 22:48:46,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 22:48:46,836 INFO L402 AbstractCegarLoop]: === Iteration 4 === 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 34 more)] === [2021-11-20 22:48:46,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:48:46,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1650392270, now seen corresponding path program 1 times [2021-11-20 22:48:46,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:48:46,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301274137] [2021-11-20 22:48:46,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:48:46,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:48:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:48:47,028 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 22:48:47,028 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:48:47,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301274137] [2021-11-20 22:48:47,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301274137] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:48:47,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:48:47,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:48:47,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722658761] [2021-11-20 22:48:47,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:48:47,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:48:47,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:48:47,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:48:47,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:48:47,031 INFO L87 Difference]: Start difference. First operand 19724 states and 28239 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-20 22:48:49,950 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:52,167 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:54,192 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:56,375 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:49:01,474 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:49:03,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:49:03,100 INFO L93 Difference]: Finished difference Result 20260 states and 28881 transitions. [2021-11-20 22:49:03,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 22:49:03,101 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 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 48 [2021-11-20 22:49:03,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:49:03,213 INFO L225 Difference]: With dead ends: 20260 [2021-11-20 22:49:03,213 INFO L226 Difference]: Without dead ends: 20258 [2021-11-20 22:49:03,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:49:03,228 INFO L933 BasicCegarLoop]: 4296 mSDtfsCounter, 4502 mSDsluCounter, 5729 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4513 SdHoareTripleChecker+Valid, 9298 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2021-11-20 22:49:03,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4513 Valid, 9298 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1321 Invalid, 4 Unknown, 0 Unchecked, 15.6s Time] [2021-11-20 22:49:03,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20258 states. [2021-11-20 22:49:04,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20258 to 20252. [2021-11-20 22:49:04,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20252 states, 11992 states have (on average 1.275517011340894) internal successors, (15296), 12501 states have internal predecessors, (15296), 6447 states have call successors, (6447), 1781 states have call predecessors, (6447), 1779 states have return successors, (7133), 6351 states have call predecessors, (7133), 6445 states have call successors, (7133) [2021-11-20 22:49:04,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20252 states to 20252 states and 28876 transitions. [2021-11-20 22:49:04,470 INFO L78 Accepts]: Start accepts. Automaton has 20252 states and 28876 transitions. Word has length 48 [2021-11-20 22:49:04,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:49:04,470 INFO L470 AbstractCegarLoop]: Abstraction has 20252 states and 28876 transitions. [2021-11-20 22:49:04,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-20 22:49:04,471 INFO L276 IsEmpty]: Start isEmpty. Operand 20252 states and 28876 transitions. [2021-11-20 22:49:04,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-20 22:49:04,472 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:49:04,472 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 22:49:04,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 22:49:04,473 INFO L402 AbstractCegarLoop]: === Iteration 5 === 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 34 more)] === [2021-11-20 22:49:04,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:49:04,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1383570208, now seen corresponding path program 1 times [2021-11-20 22:49:04,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:49:04,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104484556] [2021-11-20 22:49:04,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:49:04,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:49:04,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:49:04,680 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 22:49:04,680 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:49:04,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104484556] [2021-11-20 22:49:04,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104484556] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:49:04,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:49:04,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:49:04,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777261158] [2021-11-20 22:49:04,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:49:04,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:49:04,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:49:04,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:49:04,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:49:04,683 INFO L87 Difference]: Start difference. First operand 20252 states and 28876 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-20 22:49:07,226 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:09,548 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:11,582 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:17,840 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:49:19,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:49:19,467 INFO L93 Difference]: Finished difference Result 20258 states and 28879 transitions. [2021-11-20 22:49:19,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 22:49:19,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 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 53 [2021-11-20 22:49:19,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:49:19,585 INFO L225 Difference]: With dead ends: 20258 [2021-11-20 22:49:19,586 INFO L226 Difference]: Without dead ends: 20256 [2021-11-20 22:49:19,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:49:19,597 INFO L933 BasicCegarLoop]: 4303 mSDtfsCounter, 4500 mSDsluCounter, 5739 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4511 SdHoareTripleChecker+Valid, 9312 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2021-11-20 22:49:19,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4511 Valid, 9312 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1325 Invalid, 4 Unknown, 0 Unchecked, 14.2s Time] [2021-11-20 22:49:19,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20256 states. [2021-11-20 22:49:20,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20256 to 20250. [2021-11-20 22:49:20,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20250 states, 11991 states have (on average 1.2754565924443333) internal successors, (15294), 12499 states have internal predecessors, (15294), 6447 states have call successors, (6447), 1781 states have call predecessors, (6447), 1779 states have return successors, (7133), 6351 states have call predecessors, (7133), 6445 states have call successors, (7133) [2021-11-20 22:49:20,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20250 states to 20250 states and 28874 transitions. [2021-11-20 22:49:20,851 INFO L78 Accepts]: Start accepts. Automaton has 20250 states and 28874 transitions. Word has length 53 [2021-11-20 22:49:20,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:49:20,852 INFO L470 AbstractCegarLoop]: Abstraction has 20250 states and 28874 transitions. [2021-11-20 22:49:20,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-20 22:49:20,852 INFO L276 IsEmpty]: Start isEmpty. Operand 20250 states and 28874 transitions. [2021-11-20 22:49:20,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-20 22:49:20,855 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:49:20,855 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-20 22:49:20,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 22:49:20,855 INFO L402 AbstractCegarLoop]: === Iteration 6 === 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 34 more)] === [2021-11-20 22:49:20,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:49:20,856 INFO L85 PathProgramCache]: Analyzing trace with hash 204215587, now seen corresponding path program 1 times [2021-11-20 22:49:20,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:49:20,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981741658] [2021-11-20 22:49:20,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:49:20,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:49:20,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:49:21,097 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-20 22:49:21,097 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:49:21,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981741658] [2021-11-20 22:49:21,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981741658] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:49:21,098 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:49:21,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 22:49:21,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35067543] [2021-11-20 22:49:21,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:49:21,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 22:49:21,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:49:21,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 22:49:21,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:49:21,099 INFO L87 Difference]: Start difference. First operand 20250 states and 28874 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, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-20 22:49:24,302 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:26,527 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:28,563 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:30,819 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:49:32,345 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:49:39,818 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:49:42,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:49:42,439 INFO L93 Difference]: Finished difference Result 20256 states and 28877 transitions. [2021-11-20 22:49:42,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 22:49:42,439 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, (10), 2 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 53 [2021-11-20 22:49:42,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:49:42,532 INFO L225 Difference]: With dead ends: 20256 [2021-11-20 22:49:42,533 INFO L226 Difference]: Without dead ends: 20254 [2021-11-20 22:49:42,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 22:49:42,542 INFO L933 BasicCegarLoop]: 4290 mSDtfsCounter, 4495 mSDsluCounter, 10599 mSDsCounter, 0 mSdLazyCounter, 1916 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4507 SdHoareTripleChecker+Valid, 13573 SdHoareTripleChecker+Invalid, 1921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1916 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2021-11-20 22:49:42,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4507 Valid, 13573 Invalid, 1921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1916 Invalid, 5 Unknown, 0 Unchecked, 20.7s Time] [2021-11-20 22:49:42,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20254 states. [2021-11-20 22:49:43,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20254 to 20248. [2021-11-20 22:49:43,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20248 states, 11990 states have (on average 1.274812343619683) internal successors, (15285), 12497 states have internal predecessors, (15285), 6447 states have call successors, (6447), 1781 states have call predecessors, (6447), 1779 states have return successors, (7133), 6351 states have call predecessors, (7133), 6445 states have call successors, (7133) [2021-11-20 22:49:43,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20248 states to 20248 states and 28865 transitions. [2021-11-20 22:49:43,539 INFO L78 Accepts]: Start accepts. Automaton has 20248 states and 28865 transitions. Word has length 53 [2021-11-20 22:49:43,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:49:43,540 INFO L470 AbstractCegarLoop]: Abstraction has 20248 states and 28865 transitions. [2021-11-20 22:49:43,541 INFO L471 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, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-20 22:49:43,541 INFO L276 IsEmpty]: Start isEmpty. Operand 20248 states and 28865 transitions. [2021-11-20 22:49:43,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-20 22:49:43,543 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:49:43,543 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 22:49:43,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 22:49:43,543 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_drivers_base_class_destroy_classErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-11-20 22:49:43,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:49:43,544 INFO L85 PathProgramCache]: Analyzing trace with hash -782414679, now seen corresponding path program 1 times [2021-11-20 22:49:43,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:49:43,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884184736] [2021-11-20 22:49:43,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:49:43,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:49:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:49:43,821 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 22:49:43,821 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:49:43,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884184736] [2021-11-20 22:49:43,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884184736] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:49:43,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:49:43,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 22:49:43,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539771656] [2021-11-20 22:49:43,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:49:43,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 22:49:43,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:49:43,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 22:49:43,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 22:49:43,823 INFO L87 Difference]: Start difference. First operand 20248 states and 28865 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-20 22:49:47,779 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:50,310 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:52,376 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:54,639 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:49:55,917 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:49:57,914 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:49:58,987 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:50:08,101 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:50:11,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:50:11,364 INFO L93 Difference]: Finished difference Result 27440 states and 38704 transitions. [2021-11-20 22:50:11,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 22:50:11,365 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 56 [2021-11-20 22:50:11,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:50:11,494 INFO L225 Difference]: With dead ends: 27440 [2021-11-20 22:50:11,495 INFO L226 Difference]: Without dead ends: 27130 [2021-11-20 22:50:11,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-20 22:50:11,511 INFO L933 BasicCegarLoop]: 4708 mSDtfsCounter, 4224 mSDsluCounter, 18809 mSDsCounter, 0 mSdLazyCounter, 2844 mSolverCounterSat, 52 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4234 SdHoareTripleChecker+Valid, 21364 SdHoareTripleChecker+Invalid, 2901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2844 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.3s IncrementalHoareTripleChecker+Time [2021-11-20 22:50:11,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4234 Valid, 21364 Invalid, 2901 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [52 Valid, 2844 Invalid, 5 Unknown, 0 Unchecked, 26.3s Time] [2021-11-20 22:50:11,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27130 states. [2021-11-20 22:50:12,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27130 to 26910. [2021-11-20 22:50:12,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26910 states, 15844 states have (on average 1.2683034587225448) internal successors, (20095), 16505 states have internal predecessors, (20095), 8523 states have call successors, (8523), 2515 states have call predecessors, (8523), 2511 states have return successors, (9507), 8383 states have call predecessors, (9507), 8521 states have call successors, (9507) [2021-11-20 22:50:13,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26910 states to 26910 states and 38125 transitions. [2021-11-20 22:50:13,036 INFO L78 Accepts]: Start accepts. Automaton has 26910 states and 38125 transitions. Word has length 56 [2021-11-20 22:50:13,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:50:13,037 INFO L470 AbstractCegarLoop]: Abstraction has 26910 states and 38125 transitions. [2021-11-20 22:50:13,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-20 22:50:13,037 INFO L276 IsEmpty]: Start isEmpty. Operand 26910 states and 38125 transitions. [2021-11-20 22:50:13,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-20 22:50:13,040 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:50:13,040 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 22:50:13,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 22:50:13,040 INFO L402 AbstractCegarLoop]: === Iteration 8 === 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 34 more)] === [2021-11-20 22:50:13,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:50:13,041 INFO L85 PathProgramCache]: Analyzing trace with hash 474558947, now seen corresponding path program 1 times [2021-11-20 22:50:13,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:50:13,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260913188] [2021-11-20 22:50:13,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:50:13,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:50:13,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:50:13,226 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 22:50:13,227 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:50:13,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260913188] [2021-11-20 22:50:13,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260913188] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:50:13,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:50:13,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:50:13,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72028368] [2021-11-20 22:50:13,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:50:13,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:50:13,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:50:13,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:50:13,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:50:13,230 INFO L87 Difference]: Start difference. First operand 26910 states and 38125 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-20 22:50:16,299 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:18,518 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:20,559 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:25,284 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:50:26,764 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:50:31,385 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:50:33,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:50:33,286 INFO L93 Difference]: Finished difference Result 27138 states and 38367 transitions. [2021-11-20 22:50:33,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 22:50:33,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 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 58 [2021-11-20 22:50:33,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:50:33,409 INFO L225 Difference]: With dead ends: 27138 [2021-11-20 22:50:33,409 INFO L226 Difference]: Without dead ends: 27136 [2021-11-20 22:50:33,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:50:33,426 INFO L933 BasicCegarLoop]: 4969 mSDtfsCounter, 4496 mSDsluCounter, 8526 mSDsCounter, 0 mSdLazyCounter, 1634 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4507 SdHoareTripleChecker+Valid, 12491 SdHoareTripleChecker+Invalid, 1641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1634 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2021-11-20 22:50:33,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4507 Valid, 12491 Invalid, 1641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1634 Invalid, 5 Unknown, 0 Unchecked, 19.2s Time] [2021-11-20 22:50:33,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27136 states. [2021-11-20 22:50:34,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27136 to 26976. [2021-11-20 22:50:34,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26976 states, 15883 states have (on average 1.2678335327079266) internal successors, (20137), 16544 states have internal predecessors, (20137), 8541 states have call successors, (8541), 2524 states have call predecessors, (8541), 2520 states have return successors, (9525), 8401 states have call predecessors, (9525), 8539 states have call successors, (9525) [2021-11-20 22:50:34,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26976 states to 26976 states and 38203 transitions. [2021-11-20 22:50:34,743 INFO L78 Accepts]: Start accepts. Automaton has 26976 states and 38203 transitions. Word has length 58 [2021-11-20 22:50:34,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:50:34,744 INFO L470 AbstractCegarLoop]: Abstraction has 26976 states and 38203 transitions. [2021-11-20 22:50:34,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-20 22:50:34,744 INFO L276 IsEmpty]: Start isEmpty. Operand 26976 states and 38203 transitions. [2021-11-20 22:50:34,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-20 22:50:34,746 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:50:34,746 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 22:50:34,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 22:50:34,746 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_usb_gadget_destroy_classErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-11-20 22:50:34,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:50:34,747 INFO L85 PathProgramCache]: Analyzing trace with hash 779912008, now seen corresponding path program 1 times [2021-11-20 22:50:34,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:50:34,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223583631] [2021-11-20 22:50:34,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:50:34,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:50:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:50:34,914 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 22:50:34,915 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:50:34,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223583631] [2021-11-20 22:50:34,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223583631] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:50:34,915 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:50:34,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:50:34,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066780649] [2021-11-20 22:50:34,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:50:34,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:50:34,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:50:34,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:50:34,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:50:34,917 INFO L87 Difference]: Start difference. First operand 26976 states and 38203 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 22:50:37,706 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:40,016 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:42,042 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:43,661 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:50:49,581 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:50:51,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:50:51,375 INFO L93 Difference]: Finished difference Result 27006 states and 38238 transitions. [2021-11-20 22:50:51,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 22:50:51,375 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (13), 2 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 61 [2021-11-20 22:50:51,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:50:51,471 INFO L225 Difference]: With dead ends: 27006 [2021-11-20 22:50:51,471 INFO L226 Difference]: Without dead ends: 27004 [2021-11-20 22:50:51,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:50:51,483 INFO L933 BasicCegarLoop]: 4301 mSDtfsCounter, 4491 mSDsluCounter, 5736 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4500 SdHoareTripleChecker+Valid, 9307 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2021-11-20 22:50:51,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4500 Valid, 9307 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1327 Invalid, 4 Unknown, 0 Unchecked, 15.5s Time] [2021-11-20 22:50:51,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27004 states. [2021-11-20 22:50:52,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27004 to 26974. [2021-11-20 22:50:52,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26974 states, 15882 states have (on average 1.2670948243294295) internal successors, (20124), 16542 states have internal predecessors, (20124), 8541 states have call successors, (8541), 2524 states have call predecessors, (8541), 2520 states have return successors, (9525), 8401 states have call predecessors, (9525), 8539 states have call successors, (9525) [2021-11-20 22:50:53,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26974 states to 26974 states and 38190 transitions. [2021-11-20 22:50:53,365 INFO L78 Accepts]: Start accepts. Automaton has 26974 states and 38190 transitions. Word has length 61 [2021-11-20 22:50:53,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:50:53,367 INFO L470 AbstractCegarLoop]: Abstraction has 26974 states and 38190 transitions. [2021-11-20 22:50:53,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 22:50:53,367 INFO L276 IsEmpty]: Start isEmpty. Operand 26974 states and 38190 transitions. [2021-11-20 22:50:53,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-20 22:50:53,376 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:50:53,377 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 22:50:53,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 22:50:53,377 INFO L402 AbstractCegarLoop]: === Iteration 10 === 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 34 more)] === [2021-11-20 22:50:53,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:50:53,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1995136220, now seen corresponding path program 1 times [2021-11-20 22:50:53,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:50:53,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727502492] [2021-11-20 22:50:53,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:50:53,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:50:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:50:53,739 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 22:50:53,739 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:50:53,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727502492] [2021-11-20 22:50:53,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727502492] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:50:53,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:50:53,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:50:53,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368523193] [2021-11-20 22:50:53,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:50:53,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:50:53,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:50:53,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:50:53,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:50:53,741 INFO L87 Difference]: Start difference. First operand 26974 states and 38190 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 22:50:56,621 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:58,947 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:01,059 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:02,277 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:51:07,854 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:51:09,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:51:09,754 INFO L93 Difference]: Finished difference Result 26980 states and 38193 transitions. [2021-11-20 22:51:09,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 22:51:09,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 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 63 [2021-11-20 22:51:09,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:51:09,845 INFO L225 Difference]: With dead ends: 26980 [2021-11-20 22:51:09,846 INFO L226 Difference]: Without dead ends: 26978 [2021-11-20 22:51:09,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:51:09,856 INFO L933 BasicCegarLoop]: 4297 mSDtfsCounter, 4492 mSDsluCounter, 5733 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4503 SdHoareTripleChecker+Valid, 9300 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2021-11-20 22:51:09,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4503 Valid, 9300 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1325 Invalid, 4 Unknown, 0 Unchecked, 15.2s Time] [2021-11-20 22:51:09,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26978 states. [2021-11-20 22:51:10,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26978 to 26972. [2021-11-20 22:51:10,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26972 states, 15881 states have (on average 1.267048674516718) internal successors, (20122), 16540 states have internal predecessors, (20122), 8541 states have call successors, (8541), 2524 states have call predecessors, (8541), 2520 states have return successors, (9525), 8401 states have call predecessors, (9525), 8539 states have call successors, (9525) [2021-11-20 22:51:10,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26972 states to 26972 states and 38188 transitions. [2021-11-20 22:51:10,969 INFO L78 Accepts]: Start accepts. Automaton has 26972 states and 38188 transitions. Word has length 63 [2021-11-20 22:51:10,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:51:10,969 INFO L470 AbstractCegarLoop]: Abstraction has 26972 states and 38188 transitions. [2021-11-20 22:51:10,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 22:51:10,970 INFO L276 IsEmpty]: Start isEmpty. Operand 26972 states and 38188 transitions. [2021-11-20 22:51:10,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-20 22:51:10,970 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:51:10,971 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:51:10,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 22:51:10,971 INFO L402 AbstractCegarLoop]: === Iteration 11 === 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 34 more)] === [2021-11-20 22:51:10,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:51:10,972 INFO L85 PathProgramCache]: Analyzing trace with hash 592342523, now seen corresponding path program 1 times [2021-11-20 22:51:10,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:51:10,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175594187] [2021-11-20 22:51:10,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:51:10,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:51:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:51:11,355 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 22:51:11,355 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:51:11,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175594187] [2021-11-20 22:51:11,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175594187] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:51:11,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:51:11,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:51:11,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97451336] [2021-11-20 22:51:11,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:51:11,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:51:11,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:51:11,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:51:11,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:51:11,357 INFO L87 Difference]: Start difference. First operand 26972 states and 38188 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-20 22:51:14,111 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:16,443 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:18,500 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:21,430 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:51:26,857 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:51:28,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:51:28,616 INFO L93 Difference]: Finished difference Result 26978 states and 38191 transitions. [2021-11-20 22:51:28,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 22:51:28,617 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 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 68 [2021-11-20 22:51:28,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:51:28,687 INFO L225 Difference]: With dead ends: 26978 [2021-11-20 22:51:28,687 INFO L226 Difference]: Without dead ends: 26976 [2021-11-20 22:51:28,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:51:28,697 INFO L933 BasicCegarLoop]: 4295 mSDtfsCounter, 4489 mSDsluCounter, 5731 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4500 SdHoareTripleChecker+Valid, 9296 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2021-11-20 22:51:28,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4500 Valid, 9296 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1324 Invalid, 5 Unknown, 0 Unchecked, 16.2s Time] [2021-11-20 22:51:28,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26976 states. [2021-11-20 22:51:29,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26976 to 26970. [2021-11-20 22:51:29,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26970 states, 15880 states have (on average 1.2670025188916876) internal successors, (20120), 16538 states have internal predecessors, (20120), 8541 states have call successors, (8541), 2524 states have call predecessors, (8541), 2520 states have return successors, (9525), 8401 states have call predecessors, (9525), 8539 states have call successors, (9525) [2021-11-20 22:51:29,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26970 states to 26970 states and 38186 transitions. [2021-11-20 22:51:29,957 INFO L78 Accepts]: Start accepts. Automaton has 26970 states and 38186 transitions. Word has length 68 [2021-11-20 22:51:29,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:51:29,957 INFO L470 AbstractCegarLoop]: Abstraction has 26970 states and 38186 transitions. [2021-11-20 22:51:29,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-20 22:51:29,958 INFO L276 IsEmpty]: Start isEmpty. Operand 26970 states and 38186 transitions. [2021-11-20 22:51:29,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-20 22:51:29,959 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:51:29,959 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 22:51:29,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 22:51:29,960 INFO L402 AbstractCegarLoop]: === Iteration 12 === 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 34 more)] === [2021-11-20 22:51:29,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:51:29,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1684089448, now seen corresponding path program 1 times [2021-11-20 22:51:29,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:51:29,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462796285] [2021-11-20 22:51:29,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:51:29,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:51:30,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:51:30,100 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 22:51:30,100 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:51:30,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462796285] [2021-11-20 22:51:30,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462796285] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:51:30,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:51:30,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:51:30,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542100461] [2021-11-20 22:51:30,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:51:30,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:51:30,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:51:30,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:51:30,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:51:30,103 INFO L87 Difference]: Start difference. First operand 26970 states and 38186 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-20 22:51:32,859 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:35,050 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:37,099 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:39,133 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:51:44,948 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:51:46,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:51:46,666 INFO L93 Difference]: Finished difference Result 26976 states and 38189 transitions. [2021-11-20 22:51:46,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 22:51:46,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 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 73 [2021-11-20 22:51:46,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:51:46,748 INFO L225 Difference]: With dead ends: 26976 [2021-11-20 22:51:46,748 INFO L226 Difference]: Without dead ends: 26974 [2021-11-20 22:51:46,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:51:46,760 INFO L933 BasicCegarLoop]: 4285 mSDtfsCounter, 4490 mSDsluCounter, 5714 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4501 SdHoareTripleChecker+Valid, 9272 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2021-11-20 22:51:46,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4501 Valid, 9272 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1319 Invalid, 4 Unknown, 0 Unchecked, 15.6s Time] [2021-11-20 22:51:46,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26974 states. [2021-11-20 22:51:47,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26974 to 26968. [2021-11-20 22:51:47,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26968 states, 15879 states have (on average 1.26695635745324) internal successors, (20118), 16536 states have internal predecessors, (20118), 8541 states have call successors, (8541), 2524 states have call predecessors, (8541), 2520 states have return successors, (9525), 8401 states have call predecessors, (9525), 8539 states have call successors, (9525) [2021-11-20 22:51:47,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26968 states to 26968 states and 38184 transitions. [2021-11-20 22:51:47,992 INFO L78 Accepts]: Start accepts. Automaton has 26968 states and 38184 transitions. Word has length 73 [2021-11-20 22:51:47,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:51:47,992 INFO L470 AbstractCegarLoop]: Abstraction has 26968 states and 38184 transitions. [2021-11-20 22:51:47,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-20 22:51:47,992 INFO L276 IsEmpty]: Start isEmpty. Operand 26968 states and 38184 transitions. [2021-11-20 22:51:47,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-20 22:51:47,994 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:51:47,994 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 22:51:47,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 22:51:47,995 INFO L402 AbstractCegarLoop]: === Iteration 13 === 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 34 more)] === [2021-11-20 22:51:47,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:51:47,995 INFO L85 PathProgramCache]: Analyzing trace with hash -792479989, now seen corresponding path program 1 times [2021-11-20 22:51:47,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:51:47,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535833530] [2021-11-20 22:51:47,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:51:47,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:51:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:51:48,145 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 22:51:48,145 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:51:48,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535833530] [2021-11-20 22:51:48,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535833530] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:51:48,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:51:48,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:51:48,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769167261] [2021-11-20 22:51:48,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:51:48,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:51:48,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:51:48,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:51:48,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:51:48,147 INFO L87 Difference]: Start difference. First operand 26968 states and 38184 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-20 22:51:51,134 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:53,519 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:55,593 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:56,774 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:52:03,251 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:52:04,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:52:04,879 INFO L93 Difference]: Finished difference Result 26974 states and 38187 transitions. [2021-11-20 22:52:04,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 22:52:04,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (15), 2 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 75 [2021-11-20 22:52:04,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:52:04,958 INFO L225 Difference]: With dead ends: 26974 [2021-11-20 22:52:04,958 INFO L226 Difference]: Without dead ends: 26972 [2021-11-20 22:52:04,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:52:04,969 INFO L933 BasicCegarLoop]: 4291 mSDtfsCounter, 4482 mSDsluCounter, 5727 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4493 SdHoareTripleChecker+Valid, 9288 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2021-11-20 22:52:04,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4493 Valid, 9288 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1325 Invalid, 4 Unknown, 0 Unchecked, 15.4s Time] [2021-11-20 22:52:04,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26972 states. [2021-11-20 22:52:06,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26972 to 26966. [2021-11-20 22:52:06,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26966 states, 15878 states have (on average 1.266910190200277) internal successors, (20116), 16534 states have internal predecessors, (20116), 8541 states have call successors, (8541), 2524 states have call predecessors, (8541), 2520 states have return successors, (9525), 8401 states have call predecessors, (9525), 8539 states have call successors, (9525) [2021-11-20 22:52:06,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26966 states to 26966 states and 38182 transitions. [2021-11-20 22:52:06,332 INFO L78 Accepts]: Start accepts. Automaton has 26966 states and 38182 transitions. Word has length 75 [2021-11-20 22:52:06,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:52:06,332 INFO L470 AbstractCegarLoop]: Abstraction has 26966 states and 38182 transitions. [2021-11-20 22:52:06,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-20 22:52:06,333 INFO L276 IsEmpty]: Start isEmpty. Operand 26966 states and 38182 transitions. [2021-11-20 22:52:06,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-20 22:52:06,334 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:52:06,335 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:52:06,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 22:52:06,335 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_net_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-11-20 22:52:06,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:52:06,336 INFO L85 PathProgramCache]: Analyzing trace with hash 310027568, now seen corresponding path program 1 times [2021-11-20 22:52:06,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:52:06,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826187656] [2021-11-20 22:52:06,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:52:06,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:52:06,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:52:06,465 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-11-20 22:52:06,466 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:52:06,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826187656] [2021-11-20 22:52:06,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826187656] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:52:06,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:52:06,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:52:06,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731041195] [2021-11-20 22:52:06,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:52:06,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:52:06,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:52:06,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:52:06,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:52:06,468 INFO L87 Difference]: Start difference. First operand 26966 states and 38182 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 22:52:08,893 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:11,138 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:13,189 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:17,633 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:52:18,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:52:18,581 INFO L93 Difference]: Finished difference Result 48981 states and 68823 transitions. [2021-11-20 22:52:18,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:52:18,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 94 [2021-11-20 22:52:18,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:52:18,669 INFO L225 Difference]: With dead ends: 48981 [2021-11-20 22:52:18,669 INFO L226 Difference]: Without dead ends: 27069 [2021-11-20 22:52:18,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:52:18,783 INFO L933 BasicCegarLoop]: 4275 mSDtfsCounter, 4527 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4535 SdHoareTripleChecker+Valid, 4907 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2021-11-20 22:52:18,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4535 Valid, 4907 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 714 Invalid, 3 Unknown, 0 Unchecked, 10.7s Time] [2021-11-20 22:52:18,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27069 states. [2021-11-20 22:52:20,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27069 to 27063. [2021-11-20 22:52:20,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27063 states, 15918 states have (on average 1.2651715039577835) internal successors, (20139), 16573 states have internal predecessors, (20139), 8571 states have call successors, (8571), 2552 states have call predecessors, (8571), 2548 states have return successors, (9555), 8431 states have call predecessors, (9555), 8569 states have call successors, (9555) [2021-11-20 22:52:20,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27063 states to 27063 states and 38265 transitions. [2021-11-20 22:52:20,685 INFO L78 Accepts]: Start accepts. Automaton has 27063 states and 38265 transitions. Word has length 94 [2021-11-20 22:52:20,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:52:20,686 INFO L470 AbstractCegarLoop]: Abstraction has 27063 states and 38265 transitions. [2021-11-20 22:52:20,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 22:52:20,686 INFO L276 IsEmpty]: Start isEmpty. Operand 27063 states and 38265 transitions. [2021-11-20 22:52:20,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-20 22:52:20,688 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:52:20,689 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-20 22:52:20,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 22:52:20,689 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-11-20 22:52:20,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:52:20,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1872168984, now seen corresponding path program 1 times [2021-11-20 22:52:20,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:52:20,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645806778] [2021-11-20 22:52:20,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:52:20,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:52:20,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:52:20,908 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-20 22:52:20,908 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:52:20,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645806778] [2021-11-20 22:52:20,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645806778] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:52:20,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:52:20,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 22:52:20,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129838093] [2021-11-20 22:52:20,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:52:20,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 22:52:20,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:52:20,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 22:52:20,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:52:20,910 INFO L87 Difference]: Start difference. First operand 27063 states and 38265 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, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 22:52:24,214 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:26,721 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:28,790 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:31,120 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:52:33,836 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:52:43,922 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:52:46,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:52:46,818 INFO L93 Difference]: Finished difference Result 37806 states and 53449 transitions. [2021-11-20 22:52:46,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 22:52:46,819 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, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 103 [2021-11-20 22:52:46,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:52:46,976 INFO L225 Difference]: With dead ends: 37806 [2021-11-20 22:52:46,977 INFO L226 Difference]: Without dead ends: 37804 [2021-11-20 22:52:46,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 22:52:46,991 INFO L933 BasicCegarLoop]: 4889 mSDtfsCounter, 4378 mSDsluCounter, 13800 mSDsCounter, 0 mSdLazyCounter, 2319 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4387 SdHoareTripleChecker+Valid, 17032 SdHoareTripleChecker+Invalid, 2327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2319 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2021-11-20 22:52:46,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4387 Valid, 17032 Invalid, 2327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2319 Invalid, 6 Unknown, 0 Unchecked, 24.2s Time] [2021-11-20 22:52:47,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37804 states. [2021-11-20 22:52:48,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37804 to 37558. [2021-11-20 22:52:48,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37558 states, 21965 states have (on average 1.256362394718871) internal successors, (27596), 22892 states have internal predecessors, (27596), 11681 states have call successors, (11681), 3920 states have call predecessors, (11681), 3886 states have return successors, (13892), 11419 states have call predecessors, (13892), 11679 states have call successors, (13892) [2021-11-20 22:52:48,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37558 states to 37558 states and 53169 transitions. [2021-11-20 22:52:48,878 INFO L78 Accepts]: Start accepts. Automaton has 37558 states and 53169 transitions. Word has length 103 [2021-11-20 22:52:48,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:52:48,878 INFO L470 AbstractCegarLoop]: Abstraction has 37558 states and 53169 transitions. [2021-11-20 22:52:48,879 INFO L471 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, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 22:52:48,879 INFO L276 IsEmpty]: Start isEmpty. Operand 37558 states and 53169 transitions. [2021-11-20 22:52:48,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-20 22:52:48,880 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:52:48,880 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 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] [2021-11-20 22:52:48,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-20 22:52:48,881 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_drivers_base_class_destroy_classErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-11-20 22:52:48,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:52:48,881 INFO L85 PathProgramCache]: Analyzing trace with hash 363754100, now seen corresponding path program 1 times [2021-11-20 22:52:48,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:52:48,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707180971] [2021-11-20 22:52:48,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:52:48,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:52:48,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:52:49,198 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-11-20 22:52:49,198 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:52:49,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707180971] [2021-11-20 22:52:49,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707180971] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:52:49,199 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:52:49,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 22:52:49,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116963355] [2021-11-20 22:52:49,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:52:49,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 22:52:49,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:52:49,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 22:52:49,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 22:52:49,200 INFO L87 Difference]: Start difference. First operand 37558 states and 53169 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-20 22:52:53,786 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:56,198 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:58,248 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:00,648 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:53:02,814 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:53:14,952 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:53:19,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:53:19,626 INFO L93 Difference]: Finished difference Result 80506 states and 113522 transitions. [2021-11-20 22:53:19,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 22:53:19,627 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 78 [2021-11-20 22:53:19,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:53:19,843 INFO L225 Difference]: With dead ends: 80506 [2021-11-20 22:53:19,843 INFO L226 Difference]: Without dead ends: 57904 [2021-11-20 22:53:19,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-20 22:53:19,919 INFO L933 BasicCegarLoop]: 4868 mSDtfsCounter, 4662 mSDsluCounter, 24568 mSDsCounter, 0 mSdLazyCounter, 3758 mSolverCounterSat, 224 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4682 SdHoareTripleChecker+Valid, 26669 SdHoareTripleChecker+Invalid, 3987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 3758 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.5s IncrementalHoareTripleChecker+Time [2021-11-20 22:53:19,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4682 Valid, 26669 Invalid, 3987 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [224 Valid, 3758 Invalid, 5 Unknown, 0 Unchecked, 27.5s Time] [2021-11-20 22:53:19,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57904 states. [2021-11-20 22:53:22,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57904 to 57494. [2021-11-20 22:53:22,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57494 states, 33489 states have (on average 1.2518737495894174) internal successors, (41924), 34904 states have internal predecessors, (41924), 17787 states have call successors, (17787), 6244 states have call predecessors, (17787), 6192 states have return successors, (21406), 17367 states have call predecessors, (21406), 17785 states have call successors, (21406) [2021-11-20 22:53:23,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57494 states to 57494 states and 81117 transitions. [2021-11-20 22:53:23,228 INFO L78 Accepts]: Start accepts. Automaton has 57494 states and 81117 transitions. Word has length 78 [2021-11-20 22:53:23,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:53:23,228 INFO L470 AbstractCegarLoop]: Abstraction has 57494 states and 81117 transitions. [2021-11-20 22:53:23,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-20 22:53:23,228 INFO L276 IsEmpty]: Start isEmpty. Operand 57494 states and 81117 transitions. [2021-11-20 22:53:23,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-20 22:53:23,230 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:53:23,230 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 22:53:23,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-20 22:53:23,231 INFO L402 AbstractCegarLoop]: === Iteration 17 === 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 34 more)] === [2021-11-20 22:53:23,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:53:23,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1049850777, now seen corresponding path program 1 times [2021-11-20 22:53:23,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:53:23,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067917923] [2021-11-20 22:53:23,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:53:23,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:53:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:53:23,578 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 22:53:23,579 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:53:23,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067917923] [2021-11-20 22:53:23,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067917923] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:53:23,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:53:23,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:53:23,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005197150] [2021-11-20 22:53:23,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:53:23,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:53:23,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:53:23,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:53:23,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:53:23,581 INFO L87 Difference]: Start difference. First operand 57494 states and 81117 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-20 22:53:26,595 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:28,803 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:30,865 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:33,101 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:53:36,210 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:53:41,879 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:53:44,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:53:44,186 INFO L93 Difference]: Finished difference Result 57500 states and 81120 transitions. [2021-11-20 22:53:44,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 22:53:44,186 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 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 80 [2021-11-20 22:53:44,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:53:44,364 INFO L225 Difference]: With dead ends: 57500 [2021-11-20 22:53:44,364 INFO L226 Difference]: Without dead ends: 57498 [2021-11-20 22:53:44,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:53:44,386 INFO L933 BasicCegarLoop]: 4237 mSDtfsCounter, 4473 mSDsluCounter, 5661 mSDsCounter, 0 mSdLazyCounter, 1300 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4486 SdHoareTripleChecker+Valid, 9180 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1300 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2021-11-20 22:53:44,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4486 Valid, 9180 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1300 Invalid, 6 Unknown, 0 Unchecked, 18.4s Time] [2021-11-20 22:53:44,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57498 states. [2021-11-20 22:53:47,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57498 to 57492. [2021-11-20 22:53:47,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57492 states, 33488 states have (on average 1.2518514094601052) internal successors, (41922), 34902 states have internal predecessors, (41922), 17787 states have call successors, (17787), 6244 states have call predecessors, (17787), 6192 states have return successors, (21406), 17367 states have call predecessors, (21406), 17785 states have call successors, (21406) [2021-11-20 22:53:47,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57492 states to 57492 states and 81115 transitions. [2021-11-20 22:53:47,865 INFO L78 Accepts]: Start accepts. Automaton has 57492 states and 81115 transitions. Word has length 80 [2021-11-20 22:53:47,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:53:47,866 INFO L470 AbstractCegarLoop]: Abstraction has 57492 states and 81115 transitions. [2021-11-20 22:53:47,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-20 22:53:47,866 INFO L276 IsEmpty]: Start isEmpty. Operand 57492 states and 81115 transitions. [2021-11-20 22:53:47,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-20 22:53:47,868 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:53:47,868 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 22:53:47,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-20 22:53:47,868 INFO L402 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 34 more)] === [2021-11-20 22:53:47,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:53:47,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1734994032, now seen corresponding path program 1 times [2021-11-20 22:53:47,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:53:47,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307316240] [2021-11-20 22:53:47,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:53:47,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:53:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:53:48,005 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 22:53:48,005 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:53:48,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307316240] [2021-11-20 22:53:48,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307316240] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:53:48,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:53:48,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:53:48,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329704044] [2021-11-20 22:53:48,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:53:48,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:53:48,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:53:48,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:53:48,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:53:48,007 INFO L87 Difference]: Start difference. First operand 57492 states and 81115 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-20 22:53:51,030 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:53,268 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:55,302 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:56,919 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:54:03,851 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:54:06,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:54:06,038 INFO L93 Difference]: Finished difference Result 57498 states and 81118 transitions. [2021-11-20 22:54:06,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 22:54:06,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 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 85 [2021-11-20 22:54:06,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:54:06,344 INFO L225 Difference]: With dead ends: 57498 [2021-11-20 22:54:06,345 INFO L226 Difference]: Without dead ends: 57496 [2021-11-20 22:54:06,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:54:06,362 INFO L933 BasicCegarLoop]: 4235 mSDtfsCounter, 4473 mSDsluCounter, 5660 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4484 SdHoareTripleChecker+Valid, 9176 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2021-11-20 22:54:06,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4484 Valid, 9176 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1303 Invalid, 4 Unknown, 0 Unchecked, 15.6s Time] [2021-11-20 22:54:06,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57496 states. [2021-11-20 22:54:09,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57496 to 57490. [2021-11-20 22:54:09,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57490 states, 33487 states have (on average 1.251829067996536) internal successors, (41920), 34900 states have internal predecessors, (41920), 17787 states have call successors, (17787), 6244 states have call predecessors, (17787), 6192 states have return successors, (21406), 17367 states have call predecessors, (21406), 17785 states have call successors, (21406) [2021-11-20 22:54:09,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57490 states to 57490 states and 81113 transitions. [2021-11-20 22:54:09,873 INFO L78 Accepts]: Start accepts. Automaton has 57490 states and 81113 transitions. Word has length 85 [2021-11-20 22:54:09,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:54:09,873 INFO L470 AbstractCegarLoop]: Abstraction has 57490 states and 81113 transitions. [2021-11-20 22:54:09,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-20 22:54:09,873 INFO L276 IsEmpty]: Start isEmpty. Operand 57490 states and 81113 transitions. [2021-11-20 22:54:09,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-20 22:54:09,876 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:54:09,876 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:54:09,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-20 22:54:09,876 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_usb_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-11-20 22:54:09,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:54:09,877 INFO L85 PathProgramCache]: Analyzing trace with hash 950576005, now seen corresponding path program 1 times [2021-11-20 22:54:09,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:54:09,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003346689] [2021-11-20 22:54:09,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:54:09,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:54:09,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:54:10,100 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-11-20 22:54:10,100 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:54:10,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003346689] [2021-11-20 22:54:10,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003346689] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 22:54:10,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717535220] [2021-11-20 22:54:10,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:54:10,101 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:54:10,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:54:10,103 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:54:10,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 22:54:11,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:54:11,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 1993 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 22:54:11,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:54:11,978 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-11-20 22:54:11,978 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 22:54:11,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717535220] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:54:11,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 22:54:11,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2021-11-20 22:54:11,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536098705] [2021-11-20 22:54:11,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:54:11,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:54:11,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:54:11,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:54:11,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-20 22:54:11,981 INFO L87 Difference]: Start difference. First operand 57490 states and 81113 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-20 22:54:14,593 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:54:16,911 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:54:18,971 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:54:24,316 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:54:26,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:54:26,372 INFO L93 Difference]: Finished difference Result 109123 states and 153405 transitions. [2021-11-20 22:54:26,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:54:26,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 102 [2021-11-20 22:54:26,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:54:26,627 INFO L225 Difference]: With dead ends: 109123 [2021-11-20 22:54:26,627 INFO L226 Difference]: Without dead ends: 57434 [2021-11-20 22:54:26,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-20 22:54:26,968 INFO L933 BasicCegarLoop]: 4220 mSDtfsCounter, 4509 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4517 SdHoareTripleChecker+Valid, 4852 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2021-11-20 22:54:26,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4517 Valid, 4852 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 704 Invalid, 3 Unknown, 0 Unchecked, 11.0s Time] [2021-11-20 22:54:27,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57434 states. [2021-11-20 22:54:30,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57434 to 57428. [2021-11-20 22:54:30,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57428 states, 33426 states have (on average 1.2504936277149525) internal successors, (41799), 34838 states have internal predecessors, (41799), 17787 states have call successors, (17787), 6244 states have call predecessors, (17787), 6192 states have return successors, (21406), 17367 states have call predecessors, (21406), 17785 states have call successors, (21406) [2021-11-20 22:54:30,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57428 states to 57428 states and 80992 transitions. [2021-11-20 22:54:30,562 INFO L78 Accepts]: Start accepts. Automaton has 57428 states and 80992 transitions. Word has length 102 [2021-11-20 22:54:30,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:54:30,563 INFO L470 AbstractCegarLoop]: Abstraction has 57428 states and 80992 transitions. [2021-11-20 22:54:30,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-20 22:54:30,563 INFO L276 IsEmpty]: Start isEmpty. Operand 57428 states and 80992 transitions. [2021-11-20 22:54:30,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-20 22:54:30,567 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:54:30,567 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 22:54:30,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 22:54:30,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5515067b-74e2-4644-aacf-e13365dc4eb5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:54:30,779 INFO L402 AbstractCegarLoop]: === Iteration 20 === 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 34 more)] === [2021-11-20 22:54:30,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:54:30,779 INFO L85 PathProgramCache]: Analyzing trace with hash 836256924, now seen corresponding path program 1 times [2021-11-20 22:54:30,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:54:30,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692976001] [2021-11-20 22:54:30,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:54:30,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:54:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:54:30,937 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 22:54:30,938 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:54:30,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692976001] [2021-11-20 22:54:30,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692976001] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:54:30,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:54:30,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:54:30,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209547909] [2021-11-20 22:54:30,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:54:30,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:54:30,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:54:30,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:54:30,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:54:30,940 INFO L87 Difference]: Start difference. First operand 57428 states and 80992 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 22:54:33,935 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:54:36,192 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:54:38,232 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []