./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/bin/utaipan-eEHZpOm5b7 --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 deb1ab2dfee1720097b2641f46d2c4bfdc556bdc54a3c09b9a590ecca720241b --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:11:41,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:11:41,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:11:41,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:11:41,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:11:41,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:11:41,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:11:41,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:11:41,929 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:11:41,931 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:11:41,932 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:11:41,934 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:11:41,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:11:41,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:11:41,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:11:41,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:11:41,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:11:41,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:11:41,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:11:41,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:11:41,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:11:41,951 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:11:41,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:11:41,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:11:41,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:11:41,958 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:11:41,959 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:11:41,960 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:11:41,961 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:11:41,962 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:11:41,962 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:11:41,964 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:11:41,964 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:11:41,965 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:11:41,967 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:11:41,967 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:11:41,968 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:11:41,968 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:11:41,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:11:41,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:11:41,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:11:41,975 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 20:11:42,019 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:11:42,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:11:42,022 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:11:42,022 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:11:42,023 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:11:42,023 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:11:42,024 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:11:42,024 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:11:42,024 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:11:42,024 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:11:42,025 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:11:42,026 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:11:42,026 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:11:42,026 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:11:42,026 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:11:42,027 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:11:42,027 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:11:42,027 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:11:42,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:11:42,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:11:42,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:11:42,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:11:42,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:11:42,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:11:42,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:11:42,030 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:11:42,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:11:42,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:11:42,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:11:42,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:11:42,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:11:42,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:11:42,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:11:42,032 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:11:42,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:11:42,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:11:42,032 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:11:42,033 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:11:42,033 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> deb1ab2dfee1720097b2641f46d2c4bfdc556bdc54a3c09b9a590ecca720241b [2021-11-25 20:11:42,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:11:42,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:11:42,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:11:42,367 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:11:42,368 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:11:42,369 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i [2021-11-25 20:11:42,449 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/bin/utaipan-eEHZpOm5b7/data/3f4b88398/f8579296b7594880b8f75752eb7965eb/FLAG5e0f738a0 [2021-11-25 20:11:43,406 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:11:43,407 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i [2021-11-25 20:11:43,475 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/bin/utaipan-eEHZpOm5b7/data/3f4b88398/f8579296b7594880b8f75752eb7965eb/FLAG5e0f738a0 [2021-11-25 20:11:43,705 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/bin/utaipan-eEHZpOm5b7/data/3f4b88398/f8579296b7594880b8f75752eb7965eb [2021-11-25 20:11:43,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:11:43,708 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:11:43,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:11:43,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:11:43,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:11:43,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:11:43" (1/1) ... [2021-11-25 20:11:43,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@87e2ad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:11:43, skipping insertion in model container [2021-11-25 20:11:43,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:11:43" (1/1) ... [2021-11-25 20:11:43,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:11:43,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:11:50,700 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524188,524201] [2021-11-25 20:11:50,704 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524333,524346] [2021-11-25 20:11:50,705 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524479,524492] [2021-11-25 20:11:50,706 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524644,524657] [2021-11-25 20:11:50,708 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524802,524815] [2021-11-25 20:11:50,714 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524960,524973] [2021-11-25 20:11:50,715 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525118,525131] [2021-11-25 20:11:50,716 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525278,525291] [2021-11-25 20:11:50,717 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525437,525450] [2021-11-25 20:11:50,717 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525576,525589] [2021-11-25 20:11:50,719 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525718,525731] [2021-11-25 20:11:50,720 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525867,525880] [2021-11-25 20:11:50,722 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526006,526019] [2021-11-25 20:11:50,723 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526161,526174] [2021-11-25 20:11:50,726 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526321,526334] [2021-11-25 20:11:50,727 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526472,526485] [2021-11-25 20:11:50,728 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526623,526636] [2021-11-25 20:11:50,737 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526775,526788] [2021-11-25 20:11:50,737 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526924,526937] [2021-11-25 20:11:50,738 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527072,527085] [2021-11-25 20:11:50,738 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527229,527242] [2021-11-25 20:11:50,745 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527378,527391] [2021-11-25 20:11:50,745 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527534,527547] [2021-11-25 20:11:50,746 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527687,527700] [2021-11-25 20:11:50,747 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527833,527846] [2021-11-25 20:11:50,747 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527976,527989] [2021-11-25 20:11:50,748 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528128,528141] [2021-11-25 20:11:50,748 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528274,528287] [2021-11-25 20:11:50,749 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528419,528432] [2021-11-25 20:11:50,749 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528573,528586] [2021-11-25 20:11:50,752 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528724,528737] [2021-11-25 20:11:50,753 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528879,528892] [2021-11-25 20:11:50,753 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529031,529044] [2021-11-25 20:11:50,754 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529186,529199] [2021-11-25 20:11:50,754 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529350,529363] [2021-11-25 20:11:50,755 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529506,529519] [2021-11-25 20:11:50,755 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529670,529683] [2021-11-25 20:11:50,756 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529812,529825] [2021-11-25 20:11:50,756 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529970,529983] [2021-11-25 20:11:50,757 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530137,530150] [2021-11-25 20:11:50,758 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530296,530309] [2021-11-25 20:11:50,759 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530455,530468] [2021-11-25 20:11:50,760 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530604,530617] [2021-11-25 20:11:50,761 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530751,530764] [2021-11-25 20:11:50,762 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530890,530903] [2021-11-25 20:11:50,763 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531053,531066] [2021-11-25 20:11:50,764 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531219,531232] [2021-11-25 20:11:50,765 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531383,531396] [2021-11-25 20:11:50,766 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531548,531561] [2021-11-25 20:11:50,767 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531713,531726] [2021-11-25 20:11:50,767 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531879,531892] [2021-11-25 20:11:50,768 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532044,532057] [2021-11-25 20:11:50,768 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532211,532224] [2021-11-25 20:11:50,769 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532371,532384] [2021-11-25 20:11:50,769 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532533,532546] [2021-11-25 20:11:50,770 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532692,532705] [2021-11-25 20:11:50,771 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532838,532851] [2021-11-25 20:11:50,771 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532981,532994] [2021-11-25 20:11:50,772 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533125,533138] [2021-11-25 20:11:50,772 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533268,533281] [2021-11-25 20:11:50,773 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533412,533425] [2021-11-25 20:11:50,774 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533553,533566] [2021-11-25 20:11:50,775 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533691,533704] [2021-11-25 20:11:50,775 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533849,533862] [2021-11-25 20:11:50,776 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534008,534021] [2021-11-25 20:11:50,777 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534164,534177] [2021-11-25 20:11:50,777 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534313,534326] [2021-11-25 20:11:50,778 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534465,534478] [2021-11-25 20:11:50,778 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534616,534629] [2021-11-25 20:11:50,779 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534765,534778] [2021-11-25 20:11:50,779 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534917,534930] [2021-11-25 20:11:50,780 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535065,535078] [2021-11-25 20:11:50,780 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535218,535231] [2021-11-25 20:11:50,782 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535369,535382] [2021-11-25 20:11:50,783 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535519,535532] [2021-11-25 20:11:50,783 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535666,535679] [2021-11-25 20:11:50,784 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535817,535830] [2021-11-25 20:11:50,785 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535968,535981] [2021-11-25 20:11:50,785 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536116,536129] [2021-11-25 20:11:50,786 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536282,536295] [2021-11-25 20:11:50,786 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536451,536464] [2021-11-25 20:11:50,787 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536618,536631] [2021-11-25 20:11:50,787 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536786,536799] [2021-11-25 20:11:50,788 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536936,536949] [2021-11-25 20:11:50,789 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[537083,537096] [2021-11-25 20:11:50,789 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[537244,537257] [2021-11-25 20:11:50,790 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[537414,537427] [2021-11-25 20:11:50,792 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[537576,537589] [2021-11-25 20:11:50,826 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:11:50,974 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:11:51,527 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524188,524201] [2021-11-25 20:11:51,529 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524333,524346] [2021-11-25 20:11:51,529 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524479,524492] [2021-11-25 20:11:51,530 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524644,524657] [2021-11-25 20:11:51,530 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524802,524815] [2021-11-25 20:11:51,530 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524960,524973] [2021-11-25 20:11:51,531 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525118,525131] [2021-11-25 20:11:51,531 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525278,525291] [2021-11-25 20:11:51,532 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525437,525450] [2021-11-25 20:11:51,532 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525576,525589] [2021-11-25 20:11:51,534 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525718,525731] [2021-11-25 20:11:51,534 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525867,525880] [2021-11-25 20:11:51,534 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526006,526019] [2021-11-25 20:11:51,535 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526161,526174] [2021-11-25 20:11:51,535 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526321,526334] [2021-11-25 20:11:51,535 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526472,526485] [2021-11-25 20:11:51,536 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526623,526636] [2021-11-25 20:11:51,536 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526775,526788] [2021-11-25 20:11:51,537 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526924,526937] [2021-11-25 20:11:51,537 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527072,527085] [2021-11-25 20:11:51,537 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527229,527242] [2021-11-25 20:11:51,538 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527378,527391] [2021-11-25 20:11:51,538 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527534,527547] [2021-11-25 20:11:51,539 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527687,527700] [2021-11-25 20:11:51,540 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527833,527846] [2021-11-25 20:11:51,540 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527976,527989] [2021-11-25 20:11:51,540 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528128,528141] [2021-11-25 20:11:51,541 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528274,528287] [2021-11-25 20:11:51,541 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528419,528432] [2021-11-25 20:11:51,542 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528573,528586] [2021-11-25 20:11:51,546 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528724,528737] [2021-11-25 20:11:51,547 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528879,528892] [2021-11-25 20:11:51,547 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529031,529044] [2021-11-25 20:11:51,548 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529186,529199] [2021-11-25 20:11:51,549 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529350,529363] [2021-11-25 20:11:51,549 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529506,529519] [2021-11-25 20:11:51,549 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529670,529683] [2021-11-25 20:11:51,550 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529812,529825] [2021-11-25 20:11:51,551 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529970,529983] [2021-11-25 20:11:51,551 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530137,530150] [2021-11-25 20:11:51,552 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530296,530309] [2021-11-25 20:11:51,553 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530455,530468] [2021-11-25 20:11:51,553 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530604,530617] [2021-11-25 20:11:51,554 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530751,530764] [2021-11-25 20:11:51,554 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530890,530903] [2021-11-25 20:11:51,554 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531053,531066] [2021-11-25 20:11:51,555 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531219,531232] [2021-11-25 20:11:51,555 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531383,531396] [2021-11-25 20:11:51,556 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531548,531561] [2021-11-25 20:11:51,556 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531713,531726] [2021-11-25 20:11:51,557 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531879,531892] [2021-11-25 20:11:51,557 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532044,532057] [2021-11-25 20:11:51,557 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532211,532224] [2021-11-25 20:11:51,558 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532371,532384] [2021-11-25 20:11:51,559 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532533,532546] [2021-11-25 20:11:51,559 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532692,532705] [2021-11-25 20:11:51,562 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532838,532851] [2021-11-25 20:11:51,562 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532981,532994] [2021-11-25 20:11:51,563 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533125,533138] [2021-11-25 20:11:51,563 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533268,533281] [2021-11-25 20:11:51,564 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533412,533425] [2021-11-25 20:11:51,565 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533553,533566] [2021-11-25 20:11:51,569 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533691,533704] [2021-11-25 20:11:51,570 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533849,533862] [2021-11-25 20:11:51,570 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534008,534021] [2021-11-25 20:11:51,576 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534164,534177] [2021-11-25 20:11:51,577 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534313,534326] [2021-11-25 20:11:51,577 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534465,534478] [2021-11-25 20:11:51,578 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534616,534629] [2021-11-25 20:11:51,578 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534765,534778] [2021-11-25 20:11:51,578 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534917,534930] [2021-11-25 20:11:51,579 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535065,535078] [2021-11-25 20:11:51,579 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535218,535231] [2021-11-25 20:11:51,580 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535369,535382] [2021-11-25 20:11:51,580 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535519,535532] [2021-11-25 20:11:51,580 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535666,535679] [2021-11-25 20:11:51,581 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535817,535830] [2021-11-25 20:11:51,581 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535968,535981] [2021-11-25 20:11:51,582 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536116,536129] [2021-11-25 20:11:51,583 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536282,536295] [2021-11-25 20:11:51,583 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536451,536464] [2021-11-25 20:11:51,584 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536618,536631] [2021-11-25 20:11:51,585 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536786,536799] [2021-11-25 20:11:51,585 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536936,536949] [2021-11-25 20:11:51,586 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[537083,537096] [2021-11-25 20:11:51,586 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[537244,537257] [2021-11-25 20:11:51,586 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[537414,537427] [2021-11-25 20:11:51,587 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_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[537576,537589] [2021-11-25 20:11:51,593 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:11:52,193 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:11:52,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:11:52 WrapperNode [2021-11-25 20:11:52,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:11:52,195 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:11:52,196 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:11:52,196 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:11:52,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:11:52" (1/1) ... [2021-11-25 20:11:52,369 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:11:52" (1/1) ... [2021-11-25 20:11:52,744 INFO L137 Inliner]: procedures = 877, calls = 4554, calls flagged for inlining = 420, calls inlined = 325, statements flattened = 8143 [2021-11-25 20:11:52,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:11:52,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:11:52,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:11:52,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:11:52,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:11:52" (1/1) ... [2021-11-25 20:11:52,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:11:52" (1/1) ... [2021-11-25 20:11:52,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:11:52" (1/1) ... [2021-11-25 20:11:52,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:11:52" (1/1) ... [2021-11-25 20:11:53,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:11:52" (1/1) ... [2021-11-25 20:11:53,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:11:52" (1/1) ... [2021-11-25 20:11:53,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:11:52" (1/1) ... [2021-11-25 20:11:53,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:11:53,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:11:53,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:11:53,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:11:53,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:11:52" (1/1) ... [2021-11-25 20:11:53,124 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:11:53,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:11:53,147 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:11:53,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:11:53,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_122 [2021-11-25 20:11:53,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_122 [2021-11-25 20:11:53,201 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_txbuf [2021-11-25 20:11:53,201 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_txbuf [2021-11-25 20:11:53,201 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2021-11-25 20:11:53,201 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2021-11-25 20:11:53,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-25 20:11:53,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-25 20:11:53,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_142 [2021-11-25 20:11:53,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_142 [2021-11-25 20:11:53,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 20:11:53,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 20:11:53,203 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_reg [2021-11-25 20:11:53,203 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_reg [2021-11-25 20:11:53,203 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 20:11:53,203 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 20:11:53,203 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-25 20:11:53,203 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-25 20:11:53,203 INFO L130 BoogieDeclarations]: Found specification of procedure alx_pci_error_resume [2021-11-25 20:11:53,204 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_pci_error_resume [2021-11-25 20:11:53,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_net_rtnetlink__double_lock [2021-11-25 20:11:53,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_net_rtnetlink__double_lock [2021-11-25 20:11:53,204 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem16 [2021-11-25 20:11:53,204 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem16 [2021-11-25 20:11:53,204 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-25 20:11:53,205 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-25 20:11:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure alx_activate [2021-11-25 20:11:53,205 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_activate [2021-11-25 20:11:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure alx_remove [2021-11-25 20:11:53,205 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_remove [2021-11-25 20:11:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_msi [2021-11-25 20:11:53,205 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_msi [2021-11-25 20:11:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-25 20:11:53,206 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-25 20:11:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_reg [2021-11-25 20:11:53,206 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_reg [2021-11-25 20:11:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-25 20:11:53,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-25 20:11:53,207 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-25 20:11:53,207 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-25 20:11:53,207 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 20:11:53,207 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 20:11:53,207 INFO L130 BoogieDeclarations]: Found specification of procedure alx_resume [2021-11-25 20:11:53,207 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_resume [2021-11-25 20:11:53,207 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_link_check [2021-11-25 20:11:53,208 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_link_check [2021-11-25 20:11:53,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 20:11:53,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 20:11:53,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-25 20:11:53,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-25 20:11:53,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:11:53,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-25 20:11:53,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-25 20:11:53,209 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_open [2021-11-25 20:11:53,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_open [2021-11-25 20:11:53,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 20:11:53,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 20:11:53,209 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem32 [2021-11-25 20:11:53,210 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem32 [2021-11-25 20:11:53,210 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 20:11:53,210 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 20:11:53,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-25 20:11:53,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-25 20:11:53,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_check_return_value_probe [2021-11-25 20:11:53,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_check_return_value_probe [2021-11-25 20:11:53,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:11:53,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-25 20:11:53,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-25 20:11:53,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_check_return_value_probe [2021-11-25 20:11:53,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_check_return_value_probe [2021-11-25 20:11:53,211 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2021-11-25 20:11:53,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2021-11-25 20:11:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure alx_netif_stop [2021-11-25 20:11:53,212 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_netif_stop [2021-11-25 20:11:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:11:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 20:11:53,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 20:11:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 20:11:53,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 20:11:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:11:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 20:11:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_pcie [2021-11-25 20:11:53,213 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_pcie [2021-11-25 20:11:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_reset [2021-11-25 20:11:53,213 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_reset [2021-11-25 20:11:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_legacy [2021-11-25 20:11:53,214 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_legacy [2021-11-25 20:11:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure alx_refill_rx_ring [2021-11-25 20:11:53,214 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_refill_rx_ring [2021-11-25 20:11:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 20:11:53,214 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 20:11:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_irq_lock_of_alx_priv [2021-11-25 20:11:53,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_irq_lock_of_alx_priv [2021-11-25 20:11:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_macaddr [2021-11-25 20:11:53,215 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_macaddr [2021-11-25 20:11:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 20:11:53,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 20:11:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2021-11-25 20:11:53,215 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2021-11-25 20:11:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure alx_speed_to_ethadv [2021-11-25 20:11:53,216 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_speed_to_ethadv [2021-11-25 20:11:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-25 20:11:53,216 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-25 20:11:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:11:53,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:11:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2021-11-25 20:11:53,217 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2021-11-25 20:11:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 20:11:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-25 20:11:53,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-25 20:11:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-25 20:11:53,217 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-25 20:11:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-25 20:11:53,218 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_with_cr [2021-11-25 20:11:53,218 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_with_cr [2021-11-25 20:11:53,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-25 20:11:53,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-25 20:11:53,218 INFO L130 BoogieDeclarations]: Found specification of procedure alx_get_supported_speeds [2021-11-25 20:11:53,218 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_get_supported_speeds [2021-11-25 20:11:53,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 20:11:53,219 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 20:11:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_macaddr [2021-11-25 20:11:53,219 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_macaddr [2021-11-25 20:11:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_mem32 [2021-11-25 20:11:53,219 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_mem32 [2021-11-25 20:11:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-25 20:11:53,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-25 20:11:53,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-25 20:11:53,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-25 20:11:53,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_128 [2021-11-25 20:11:53,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_128 [2021-11-25 20:11:53,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-25 20:11:53,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-25 20:11:53,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-25 20:11:53,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-25 20:11:53,221 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-25 20:11:53,221 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-25 20:11:53,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:11:53,221 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 20:11:53,221 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 20:11:53,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-25 20:11:53,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-25 20:11:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_buffers [2021-11-25 20:11:53,222 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_buffers [2021-11-25 20:11:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:11:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_handle [2021-11-25 20:11:53,222 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_handle [2021-11-25 20:11:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-25 20:11:53,222 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-25 20:11:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 20:11:53,223 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 20:11:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-25 20:11:53,223 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-25 20:11:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 20:11:53,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 20:11:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-25 20:11:53,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-25 20:11:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-25 20:11:53,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-25 20:11:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure alx_is_rev_a [2021-11-25 20:11:53,224 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_is_rev_a [2021-11-25 20:11:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 20:11:53,224 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 20:11:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_core [2021-11-25 20:11:53,225 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_core [2021-11-25 20:11:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_ext [2021-11-25 20:11:53,225 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_ext [2021-11-25 20:11:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:11:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 20:11:53,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 20:11:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_phy_link [2021-11-25 20:11:53,226 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_phy_link [2021-11-25 20:11:53,226 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_stop [2021-11-25 20:11:53,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_stop [2021-11-25 20:11:53,226 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_rx_mode [2021-11-25 20:11:53,226 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_rx_mode [2021-11-25 20:11:53,226 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-25 20:11:53,226 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-25 20:11:53,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_121 [2021-11-25 20:11:53,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_121 [2021-11-25 20:11:53,227 INFO L130 BoogieDeclarations]: Found specification of procedure alx_configure [2021-11-25 20:11:53,227 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_configure [2021-11-25 20:11:53,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_past_rtnl_unlock [2021-11-25 20:11:53,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_past_rtnl_unlock [2021-11-25 20:11:53,227 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-25 20:11:53,228 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-25 20:11:53,228 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_mac [2021-11-25 20:11:53,228 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_mac [2021-11-25 20:11:53,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_141 [2021-11-25 20:11:53,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_141 [2021-11-25 20:11:53,228 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2021-11-25 20:11:53,228 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2021-11-25 20:11:53,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-25 20:11:53,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-25 20:11:53,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 20:11:53,229 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 20:11:53,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 20:11:53,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 20:11:53,229 INFO L130 BoogieDeclarations]: Found specification of procedure alx_halt [2021-11-25 20:11:53,229 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_halt [2021-11-25 20:11:53,230 INFO L130 BoogieDeclarations]: Found specification of procedure alx_suspend [2021-11-25 20:11:53,230 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_suspend [2021-11-25 20:11:53,230 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_read_phy_reg [2021-11-25 20:11:53,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_read_phy_reg [2021-11-25 20:11:53,230 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-25 20:11:53,230 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-25 20:11:53,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-25 20:11:53,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-25 20:11:53,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-25 20:11:53,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-25 20:11:53,231 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tx_timeout [2021-11-25 20:11:53,231 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tx_timeout [2021-11-25 20:11:53,231 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_enable [2021-11-25 20:11:53,231 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_enable [2021-11-25 20:11:53,232 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 20:11:53,232 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 20:11:53,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_past_rtnl_lock [2021-11-25 20:11:53,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_past_rtnl_lock [2021-11-25 20:11:53,232 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_disable [2021-11-25 20:11:53,232 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_disable [2021-11-25 20:11:53,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 20:11:53,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 20:11:53,233 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-25 20:11:53,233 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-25 20:11:53,233 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 20:11:53,233 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 20:11:53,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 20:11:53,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 20:11:53,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-25 20:11:53,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-25 20:11:53,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_irq_lock_of_alx_priv [2021-11-25 20:11:53,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_irq_lock_of_alx_priv [2021-11-25 20:11:53,234 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-25 20:11:53,234 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-25 20:11:53,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:11:53,234 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_write [2021-11-25 20:11:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_write [2021-11-25 20:11:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-25 20:11:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-25 20:11:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2021-11-25 20:11:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_ext [2021-11-25 20:11:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_ext [2021-11-25 20:11:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 20:11:53,236 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 20:11:53,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 20:11:53,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_rtnl_is_locked [2021-11-25 20:11:53,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_rtnl_is_locked [2021-11-25 20:11:53,236 INFO L130 BoogieDeclarations]: Found specification of procedure ethadv_to_hw_cfg [2021-11-25 20:11:53,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ethadv_to_hw_cfg [2021-11-25 20:11:53,237 INFO L130 BoogieDeclarations]: Found specification of procedure alx_stop [2021-11-25 20:11:53,237 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_stop [2021-11-25 20:11:53,237 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-25 20:11:53,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-25 20:11:53,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 20:11:53,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-25 20:11:53,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-25 20:11:53,238 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 20:11:53,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 20:11:53,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-25 20:11:53,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-25 20:11:53,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 20:11:53,238 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 20:11:53,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-25 20:11:53,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-25 20:11:53,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-25 20:11:53,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-25 20:11:53,239 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_core [2021-11-25 20:11:53,239 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_core [2021-11-25 20:11:53,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 20:11:53,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 20:11:53,240 INFO L130 BoogieDeclarations]: Found specification of procedure alx_update_hw_stats [2021-11-25 20:11:53,240 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_update_hw_stats [2021-11-25 20:11:53,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_1 [2021-11-25 20:11:53,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_1 [2021-11-25 20:11:53,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-25 20:11:53,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-25 20:11:53,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_0 [2021-11-25 20:11:53,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_0 [2021-11-25 20:11:53,241 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_dbg [2021-11-25 20:11:53,241 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_dbg [2021-11-25 20:11:53,241 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-25 20:11:53,241 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-25 20:11:53,241 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-25 20:11:53,241 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-25 20:11:53,242 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_giga [2021-11-25 20:11:53,242 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_giga [2021-11-25 20:11:53,242 INFO L130 BoogieDeclarations]: Found specification of procedure alx_poll_controller [2021-11-25 20:11:53,242 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_poll_controller [2021-11-25 20:11:53,242 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 20:11:53,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 20:11:53,242 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:11:53,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:11:53,243 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_dbg [2021-11-25 20:11:53,243 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_dbg [2021-11-25 20:11:53,243 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-25 20:11:53,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-25 20:11:53,243 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-25 20:11:53,243 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-25 20:11:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-25 20:11:53,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-25 20:11:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_rings [2021-11-25 20:11:53,244 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_rings [2021-11-25 20:11:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-25 20:11:53,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-25 20:11:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 20:11:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 20:11:53,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 20:11:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-11-25 20:11:53,245 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-11-25 20:11:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 20:11:53,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 20:11:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-25 20:11:53,246 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-25 20:11:53,246 INFO L130 BoogieDeclarations]: Found specification of procedure alx_open [2021-11-25 20:11:53,246 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_open [2021-11-25 20:11:53,246 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-25 20:11:53,246 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-25 20:11:53,246 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-25 20:11:53,246 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-25 20:11:53,247 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2021-11-25 20:11:53,247 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2021-11-25 20:11:53,247 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-25 20:11:53,247 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-25 20:11:53,247 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 20:11:53,247 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 20:11:53,247 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-25 20:11:53,248 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-25 20:11:53,248 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit_rings [2021-11-25 20:11:53,248 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit_rings [2021-11-25 20:11:53,248 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_reg [2021-11-25 20:11:53,248 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_reg [2021-11-25 20:11:53,248 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-25 20:11:53,248 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-25 20:11:53,249 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-25 20:11:53,249 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-25 20:11:53,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 20:11:53,249 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_mdio_idle [2021-11-25 20:11:53,249 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_mdio_idle [2021-11-25 20:11:53,249 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 20:11:53,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 20:11:53,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-25 20:11:53,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-25 20:11:53,250 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-25 20:11:53,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-25 20:11:53,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-25 20:11:53,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-25 20:11:53,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-25 20:11:53,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-25 20:11:53,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 20:11:53,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 20:11:53,251 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 20:11:53,251 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 20:11:53,251 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-25 20:11:53,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-25 20:11:53,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-25 20:11:53,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-25 20:11:53,252 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 20:11:53,252 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 20:11:53,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-25 20:11:53,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-25 20:11:53,252 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2021-11-25 20:11:53,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2021-11-25 20:11:53,253 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-25 20:11:53,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-25 20:11:53,253 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit [2021-11-25 20:11:53,253 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit [2021-11-25 20:11:53,253 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tpd_avail [2021-11-25 20:11:53,253 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tpd_avail [2021-11-25 20:11:53,254 INFO L130 BoogieDeclarations]: Found specification of procedure alx_setup_speed_duplex [2021-11-25 20:11:53,254 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_setup_speed_duplex [2021-11-25 20:11:53,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-25 20:11:53,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-25 20:11:53,254 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-25 20:11:53,254 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-25 20:11:53,254 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-25 20:11:53,255 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-25 20:11:53,255 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-25 20:11:53,255 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-25 20:11:53,255 INFO L130 BoogieDeclarations]: Found specification of procedure alx_enable_aspm [2021-11-25 20:11:53,255 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_enable_aspm [2021-11-25 20:11:53,255 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_revision [2021-11-25 20:11:53,255 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_revision [2021-11-25 20:11:53,256 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_set_rx_mode [2021-11-25 20:11:53,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_set_rx_mode [2021-11-25 20:11:53,256 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_write_phy_reg [2021-11-25 20:11:53,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_write_phy_reg [2021-11-25 20:11:53,256 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-25 20:11:53,256 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-25 20:11:53,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 20:11:53,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 20:11:53,257 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-25 20:11:53,257 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-25 20:11:53,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-25 20:11:53,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-25 20:11:53,257 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-11-25 20:11:53,257 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-11-25 20:11:53,258 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_phy [2021-11-25 20:11:53,258 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_phy [2021-11-25 20:11:53,258 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-25 20:11:53,258 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-25 20:11:53,258 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-25 20:11:53,258 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-25 20:11:53,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:11:53,259 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le64 [2021-11-25 20:11:53,259 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le64 [2021-11-25 20:11:54,414 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:11:54,418 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:11:54,493 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 20:12:03,944 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:12:05,837 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:12:05,838 INFO L301 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-25 20:12:05,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:12:05 BoogieIcfgContainer [2021-11-25 20:12:05,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:12:05,845 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:12:05,845 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:12:05,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:12:05,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:11:43" (1/3) ... [2021-11-25 20:12:05,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a7cf4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:12:05, skipping insertion in model container [2021-11-25 20:12:05,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:11:52" (2/3) ... [2021-11-25 20:12:05,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a7cf4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:12:05, skipping insertion in model container [2021-11-25 20:12:05,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:12:05" (3/3) ... [2021-11-25 20:12:05,852 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i [2021-11-25 20:12:05,857 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:12:05,857 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2021-11-25 20:12:05,914 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:12:05,920 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 [2021-11-25 20:12:05,923 INFO L340 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2021-11-25 20:12:06,002 INFO L276 IsEmpty]: Start isEmpty. Operand has 2368 states, 1301 states have (on average 1.2521137586471944) internal successors, (1629), 1389 states have internal predecessors, (1629), 847 states have call successors, (847), 193 states have call predecessors, (847), 192 states have return successors, (840), 824 states have call predecessors, (840), 840 states have call successors, (840) [2021-11-25 20:12:06,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-25 20:12:06,010 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:12:06,011 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-25 20:12:06,012 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 20:12:06,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:12:06,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1290487985, now seen corresponding path program 1 times [2021-11-25 20:12:06,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:12:06,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351616593] [2021-11-25 20:12:06,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:12:06,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:12:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:12:06,988 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:12:06,989 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:12:06,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351616593] [2021-11-25 20:12:06,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351616593] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:12:06,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:12:06,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:12:06,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738199943] [2021-11-25 20:12:06,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:12:06,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:12:06,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:12:07,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:12:07,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:12:07,030 INFO L87 Difference]: Start difference. First operand has 2368 states, 1301 states have (on average 1.2521137586471944) internal successors, (1629), 1389 states have internal predecessors, (1629), 847 states have call successors, (847), 193 states have call predecessors, (847), 192 states have return successors, (840), 824 states have call predecessors, (840), 840 states have call successors, (840) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-11-25 20:12:09,781 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:12:14,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:12:16,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:12:16,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:12:16,445 INFO L93 Difference]: Finished difference Result 6466 states and 9409 transitions. [2021-11-25 20:12:16,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:12:16,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 47 [2021-11-25 20:12:16,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:12:16,519 INFO L225 Difference]: With dead ends: 6466 [2021-11-25 20:12:16,520 INFO L226 Difference]: Without dead ends: 4094 [2021-11-25 20:12:16,551 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 [2021-11-25 20:12:16,556 INFO L933 BasicCegarLoop]: 3527 mSDtfsCounter, 2407 mSDsluCounter, 7116 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2409 SdHoareTripleChecker+Valid, 9898 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:12:16,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2409 Valid, 9898 Invalid, 1137 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1133 Invalid, 3 Unknown, 0 Unchecked, 8.9s Time] [2021-11-25 20:12:16,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4094 states. [2021-11-25 20:12:16,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4094 to 3916. [2021-11-25 20:12:16,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3916 states, 2142 states have (on average 1.2189542483660132) internal successors, (2611), 2260 states have internal predecessors, (2611), 1403 states have call successors, (1403), 343 states have call predecessors, (1403), 341 states have return successors, (1403), 1374 states have call predecessors, (1403), 1401 states have call successors, (1403) [2021-11-25 20:12:17,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3916 states to 3916 states and 5417 transitions. [2021-11-25 20:12:17,027 INFO L78 Accepts]: Start accepts. Automaton has 3916 states and 5417 transitions. Word has length 47 [2021-11-25 20:12:17,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:12:17,028 INFO L470 AbstractCegarLoop]: Abstraction has 3916 states and 5417 transitions. [2021-11-25 20:12:17,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-11-25 20:12:17,028 INFO L276 IsEmpty]: Start isEmpty. Operand 3916 states and 5417 transitions. [2021-11-25 20:12:17,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-25 20:12:17,033 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:12:17,034 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:12:17,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:12:17,035 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 20:12:17,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:12:17,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1470152580, now seen corresponding path program 1 times [2021-11-25 20:12:17,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:12:17,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709157297] [2021-11-25 20:12:17,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:12:17,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:12:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:12:17,488 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:12:17,488 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:12:17,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709157297] [2021-11-25 20:12:17,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709157297] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:12:17,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:12:17,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:12:17,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780285964] [2021-11-25 20:12:17,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:12:17,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:12:17,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:12:17,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:12:17,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:12:17,492 INFO L87 Difference]: Start difference. First operand 3916 states and 5417 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2021-11-25 20:12:20,113 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:12:24,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:12:24,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:12:24,907 INFO L93 Difference]: Finished difference Result 5697 states and 7819 transitions. [2021-11-25 20:12:24,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:12:24,908 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 52 [2021-11-25 20:12:24,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:12:24,956 INFO L225 Difference]: With dead ends: 5697 [2021-11-25 20:12:24,956 INFO L226 Difference]: Without dead ends: 5695 [2021-11-25 20:12:24,960 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 [2021-11-25 20:12:24,961 INFO L933 BasicCegarLoop]: 3511 mSDtfsCounter, 2407 mSDsluCounter, 7076 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2409 SdHoareTripleChecker+Valid, 9842 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:12:24,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2409 Valid, 9842 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1128 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2021-11-25 20:12:24,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5695 states. [2021-11-25 20:12:25,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5695 to 5528. [2021-11-25 20:12:25,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5528 states, 3018 states have (on average 1.2173624917163686) internal successors, (3674), 3175 states have internal predecessors, (3674), 1985 states have call successors, (1985), 497 states have call predecessors, (1985), 495 states have return successors, (1985), 1943 states have call predecessors, (1985), 1983 states have call successors, (1985) [2021-11-25 20:12:25,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5528 states to 5528 states and 7644 transitions. [2021-11-25 20:12:25,333 INFO L78 Accepts]: Start accepts. Automaton has 5528 states and 7644 transitions. Word has length 52 [2021-11-25 20:12:25,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:12:25,333 INFO L470 AbstractCegarLoop]: Abstraction has 5528 states and 7644 transitions. [2021-11-25 20:12:25,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2021-11-25 20:12:25,334 INFO L276 IsEmpty]: Start isEmpty. Operand 5528 states and 7644 transitions. [2021-11-25 20:12:25,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-25 20:12:25,337 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:12:25,337 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:12:25,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:12:25,337 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 20:12:25,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:12:25,338 INFO L85 PathProgramCache]: Analyzing trace with hash 306637433, now seen corresponding path program 1 times [2021-11-25 20:12:25,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:12:25,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548954600] [2021-11-25 20:12:25,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:12:25,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:12:25,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:12:25,656 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:12:25,656 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:12:25,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548954600] [2021-11-25 20:12:25,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548954600] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:12:25,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:12:25,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:12:25,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067546763] [2021-11-25 20:12:25,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:12:25,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:12:25,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:12:25,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:12:25,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:12:25,659 INFO L87 Difference]: Start difference. First operand 5528 states and 7644 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-11-25 20:12:28,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:12:32,054 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:12:32,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:12:32,299 INFO L93 Difference]: Finished difference Result 5695 states and 7817 transitions. [2021-11-25 20:12:32,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:12:32,300 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 57 [2021-11-25 20:12:32,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:12:32,343 INFO L225 Difference]: With dead ends: 5695 [2021-11-25 20:12:32,344 INFO L226 Difference]: Without dead ends: 5693 [2021-11-25 20:12:32,347 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 [2021-11-25 20:12:32,352 INFO L933 BasicCegarLoop]: 3511 mSDtfsCounter, 2404 mSDsluCounter, 7074 mSDsCounter, 0 mSdLazyCounter, 1125 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2406 SdHoareTripleChecker+Valid, 9842 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1125 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:12:32,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2406 Valid, 9842 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1125 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2021-11-25 20:12:32,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5693 states. [2021-11-25 20:12:32,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5693 to 5534. [2021-11-25 20:12:32,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5534 states, 3021 states have (on average 1.217146640185369) internal successors, (3677), 3178 states have internal predecessors, (3677), 1987 states have call successors, (1987), 498 states have call predecessors, (1987), 496 states have return successors, (1987), 1945 states have call predecessors, (1987), 1985 states have call successors, (1987) [2021-11-25 20:12:32,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5534 states to 5534 states and 7651 transitions. [2021-11-25 20:12:32,701 INFO L78 Accepts]: Start accepts. Automaton has 5534 states and 7651 transitions. Word has length 57 [2021-11-25 20:12:32,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:12:32,703 INFO L470 AbstractCegarLoop]: Abstraction has 5534 states and 7651 transitions. [2021-11-25 20:12:32,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-11-25 20:12:32,704 INFO L276 IsEmpty]: Start isEmpty. Operand 5534 states and 7651 transitions. [2021-11-25 20:12:32,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-25 20:12:32,711 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:12:32,711 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-25 20:12:32,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 20:12:32,711 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 20:12:32,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:12:32,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1634717069, now seen corresponding path program 1 times [2021-11-25 20:12:32,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:12:32,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636505223] [2021-11-25 20:12:32,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:12:32,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:12:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:12:33,092 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:12:33,094 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:12:33,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636505223] [2021-11-25 20:12:33,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636505223] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:12:33,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:12:33,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:12:33,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572236337] [2021-11-25 20:12:33,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:12:33,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:12:33,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:12:33,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:12:33,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:12:33,097 INFO L87 Difference]: Start difference. First operand 5534 states and 7651 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2021-11-25 20:12:35,629 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:12:39,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:12:39,220 INFO L93 Difference]: Finished difference Result 5693 states and 7815 transitions. [2021-11-25 20:12:39,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:12:39,221 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 62 [2021-11-25 20:12:39,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:12:39,263 INFO L225 Difference]: With dead ends: 5693 [2021-11-25 20:12:39,263 INFO L226 Difference]: Without dead ends: 5691 [2021-11-25 20:12:39,265 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 [2021-11-25 20:12:39,266 INFO L933 BasicCegarLoop]: 3511 mSDtfsCounter, 2401 mSDsluCounter, 7076 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2403 SdHoareTripleChecker+Valid, 9842 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:12:39,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2403 Valid, 9842 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1128 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2021-11-25 20:12:39,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5691 states. [2021-11-25 20:12:39,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5691 to 5540. [2021-11-25 20:12:39,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5540 states, 3024 states have (on average 1.216931216931217) internal successors, (3680), 3181 states have internal predecessors, (3680), 1989 states have call successors, (1989), 499 states have call predecessors, (1989), 497 states have return successors, (1989), 1947 states have call predecessors, (1989), 1987 states have call successors, (1989) [2021-11-25 20:12:39,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5540 states to 5540 states and 7658 transitions. [2021-11-25 20:12:39,599 INFO L78 Accepts]: Start accepts. Automaton has 5540 states and 7658 transitions. Word has length 62 [2021-11-25 20:12:39,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:12:39,600 INFO L470 AbstractCegarLoop]: Abstraction has 5540 states and 7658 transitions. [2021-11-25 20:12:39,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2021-11-25 20:12:39,601 INFO L276 IsEmpty]: Start isEmpty. Operand 5540 states and 7658 transitions. [2021-11-25 20:12:39,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-25 20:12:39,603 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:12:39,604 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:12:39,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:12:39,604 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 20:12:39,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:12:39,605 INFO L85 PathProgramCache]: Analyzing trace with hash -369807573, now seen corresponding path program 1 times [2021-11-25 20:12:39,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:12:39,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085699701] [2021-11-25 20:12:39,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:12:39,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:12:39,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:12:39,950 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:12:39,950 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:12:39,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085699701] [2021-11-25 20:12:39,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085699701] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:12:39,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:12:39,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:12:39,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574780081] [2021-11-25 20:12:39,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:12:39,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:12:39,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:12:39,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:12:39,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:12:39,954 INFO L87 Difference]: Start difference. First operand 5540 states and 7658 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (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) [2021-11-25 20:12:42,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:12:46,291 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:12:46,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:12:46,547 INFO L93 Difference]: Finished difference Result 5691 states and 7813 transitions. [2021-11-25 20:12:46,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:12:46,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (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 67 [2021-11-25 20:12:46,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:12:46,591 INFO L225 Difference]: With dead ends: 5691 [2021-11-25 20:12:46,591 INFO L226 Difference]: Without dead ends: 5689 [2021-11-25 20:12:46,593 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 [2021-11-25 20:12:46,594 INFO L933 BasicCegarLoop]: 3511 mSDtfsCounter, 2398 mSDsluCounter, 7076 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2400 SdHoareTripleChecker+Valid, 9842 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:12:46,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2400 Valid, 9842 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1128 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2021-11-25 20:12:46,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5689 states. [2021-11-25 20:12:46,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5689 to 5546. [2021-11-25 20:12:46,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5546 states, 3027 states have (on average 1.2167162206805417) internal successors, (3683), 3184 states have internal predecessors, (3683), 1991 states have call successors, (1991), 500 states have call predecessors, (1991), 498 states have return successors, (1991), 1949 states have call predecessors, (1991), 1989 states have call successors, (1991) [2021-11-25 20:12:46,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5546 states to 5546 states and 7665 transitions. [2021-11-25 20:12:46,954 INFO L78 Accepts]: Start accepts. Automaton has 5546 states and 7665 transitions. Word has length 67 [2021-11-25 20:12:46,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:12:46,954 INFO L470 AbstractCegarLoop]: Abstraction has 5546 states and 7665 transitions. [2021-11-25 20:12:46,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (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) [2021-11-25 20:12:46,955 INFO L276 IsEmpty]: Start isEmpty. Operand 5546 states and 7665 transitions. [2021-11-25 20:12:46,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-25 20:12:46,957 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:12:46,958 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:12:46,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 20:12:46,958 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 20:12:46,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:12:46,959 INFO L85 PathProgramCache]: Analyzing trace with hash 580662307, now seen corresponding path program 1 times [2021-11-25 20:12:46,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:12:46,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348277772] [2021-11-25 20:12:46,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:12:46,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:12:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:12:47,268 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:12:47,268 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:12:47,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348277772] [2021-11-25 20:12:47,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348277772] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:12:47,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:12:47,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:12:47,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073257127] [2021-11-25 20:12:47,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:12:47,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:12:47,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:12:47,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:12:47,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:12:47,271 INFO L87 Difference]: Start difference. First operand 5546 states and 7665 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2021-11-25 20:12:49,793 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:12:53,544 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:12:55,566 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:12:55,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:12:55,777 INFO L93 Difference]: Finished difference Result 5689 states and 7811 transitions. [2021-11-25 20:12:55,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:12:55,777 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 72 [2021-11-25 20:12:55,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:12:55,809 INFO L225 Difference]: With dead ends: 5689 [2021-11-25 20:12:55,810 INFO L226 Difference]: Without dead ends: 5687 [2021-11-25 20:12:55,813 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 [2021-11-25 20:12:55,814 INFO L933 BasicCegarLoop]: 3511 mSDtfsCounter, 2395 mSDsluCounter, 7076 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2397 SdHoareTripleChecker+Valid, 9842 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:12:55,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2397 Valid, 9842 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1127 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2021-11-25 20:12:55,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5687 states. [2021-11-25 20:12:56,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5687 to 5552. [2021-11-25 20:12:56,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5552 states, 3030 states have (on average 1.2165016501650165) internal successors, (3686), 3187 states have internal predecessors, (3686), 1993 states have call successors, (1993), 501 states have call predecessors, (1993), 499 states have return successors, (1993), 1951 states have call predecessors, (1993), 1991 states have call successors, (1993) [2021-11-25 20:12:56,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5552 states to 5552 states and 7672 transitions. [2021-11-25 20:12:56,163 INFO L78 Accepts]: Start accepts. Automaton has 5552 states and 7672 transitions. Word has length 72 [2021-11-25 20:12:56,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:12:56,165 INFO L470 AbstractCegarLoop]: Abstraction has 5552 states and 7672 transitions. [2021-11-25 20:12:56,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2021-11-25 20:12:56,165 INFO L276 IsEmpty]: Start isEmpty. Operand 5552 states and 7672 transitions. [2021-11-25 20:12:56,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-25 20:12:56,166 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:12:56,167 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:12:56,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 20:12:56,168 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_net_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 20:12:56,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:12:56,168 INFO L85 PathProgramCache]: Analyzing trace with hash -218234462, now seen corresponding path program 1 times [2021-11-25 20:12:56,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:12:56,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301897515] [2021-11-25 20:12:56,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:12:56,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:12:56,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:12:56,502 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-25 20:12:56,502 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:12:56,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301897515] [2021-11-25 20:12:56,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301897515] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:12:56,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:12:56,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:12:56,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715815709] [2021-11-25 20:12:56,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:12:56,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:12:56,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:12:56,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:12:56,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:12:56,505 INFO L87 Difference]: Start difference. First operand 5552 states and 7672 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-25 20:12:58,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:13:01,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:01,015 INFO L93 Difference]: Finished difference Result 12099 states and 16661 transitions. [2021-11-25 20:13:01,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:13:01,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 90 [2021-11-25 20:13:01,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:01,045 INFO L225 Difference]: With dead ends: 12099 [2021-11-25 20:13:01,045 INFO L226 Difference]: Without dead ends: 6565 [2021-11-25 20:13:01,078 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 [2021-11-25 20:13:01,079 INFO L933 BasicCegarLoop]: 3249 mSDtfsCounter, 2416 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2416 SdHoareTripleChecker+Valid, 5142 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:01,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2416 Valid, 5142 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 617 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2021-11-25 20:13:01,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6565 states. [2021-11-25 20:13:01,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6565 to 6553. [2021-11-25 20:13:01,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6553 states, 3553 states have (on average 1.207993245144948) internal successors, (4292), 3731 states have internal predecessors, (4292), 2354 states have call successors, (2354), 619 states have call predecessors, (2354), 616 states have return successors, (2354), 2306 states have call predecessors, (2354), 2352 states have call successors, (2354) [2021-11-25 20:13:01,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6553 states to 6553 states and 9000 transitions. [2021-11-25 20:13:01,460 INFO L78 Accepts]: Start accepts. Automaton has 6553 states and 9000 transitions. Word has length 90 [2021-11-25 20:13:01,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:01,461 INFO L470 AbstractCegarLoop]: Abstraction has 6553 states and 9000 transitions. [2021-11-25 20:13:01,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-25 20:13:01,461 INFO L276 IsEmpty]: Start isEmpty. Operand 6553 states and 9000 transitions. [2021-11-25 20:13:01,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-25 20:13:01,469 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:01,469 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:13:01,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 20:13:01,469 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 20:13:01,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:01,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1489171333, now seen corresponding path program 1 times [2021-11-25 20:13:01,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:01,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104899728] [2021-11-25 20:13:01,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:01,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:01,820 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:13:01,821 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:01,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104899728] [2021-11-25 20:13:01,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104899728] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:13:01,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:13:01,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:13:01,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419128601] [2021-11-25 20:13:01,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:13:01,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:13:01,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:01,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:13:01,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:13:01,824 INFO L87 Difference]: Start difference. First operand 6553 states and 9000 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2021-11-25 20:13:04,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:13:08,748 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:13:08,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:08,949 INFO L93 Difference]: Finished difference Result 6686 states and 9136 transitions. [2021-11-25 20:13:08,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:13:08,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 77 [2021-11-25 20:13:08,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:08,981 INFO L225 Difference]: With dead ends: 6686 [2021-11-25 20:13:08,981 INFO L226 Difference]: Without dead ends: 6684 [2021-11-25 20:13:08,986 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 [2021-11-25 20:13:08,986 INFO L933 BasicCegarLoop]: 3532 mSDtfsCounter, 2387 mSDsluCounter, 7104 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2389 SdHoareTripleChecker+Valid, 9884 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:08,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2389 Valid, 9884 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1142 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2021-11-25 20:13:08,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6684 states. [2021-11-25 20:13:09,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6684 to 6559. [2021-11-25 20:13:09,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6559 states, 3556 states have (on average 1.2078177727784027) internal successors, (4295), 3734 states have internal predecessors, (4295), 2356 states have call successors, (2356), 620 states have call predecessors, (2356), 617 states have return successors, (2356), 2308 states have call predecessors, (2356), 2354 states have call successors, (2356) [2021-11-25 20:13:09,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6559 states to 6559 states and 9007 transitions. [2021-11-25 20:13:09,347 INFO L78 Accepts]: Start accepts. Automaton has 6559 states and 9007 transitions. Word has length 77 [2021-11-25 20:13:09,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:09,348 INFO L470 AbstractCegarLoop]: Abstraction has 6559 states and 9007 transitions. [2021-11-25 20:13:09,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2021-11-25 20:13:09,348 INFO L276 IsEmpty]: Start isEmpty. Operand 6559 states and 9007 transitions. [2021-11-25 20:13:09,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-25 20:13:09,350 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:09,350 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:13:09,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 20:13:09,351 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 20:13:09,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:09,351 INFO L85 PathProgramCache]: Analyzing trace with hash -997919326, now seen corresponding path program 1 times [2021-11-25 20:13:09,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:09,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191585913] [2021-11-25 20:13:09,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:09,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:09,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:09,635 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:13:09,635 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:09,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191585913] [2021-11-25 20:13:09,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191585913] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:13:09,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:13:09,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:13:09,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815451120] [2021-11-25 20:13:09,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:13:09,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:13:09,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:09,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:13:09,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:13:09,638 INFO L87 Difference]: Start difference. First operand 6559 states and 9007 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, (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) [2021-11-25 20:13:12,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:13:16,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:13:16,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:16,327 INFO L93 Difference]: Finished difference Result 6684 states and 9134 transitions. [2021-11-25 20:13:16,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:13:16,328 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, (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 82 [2021-11-25 20:13:16,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:16,361 INFO L225 Difference]: With dead ends: 6684 [2021-11-25 20:13:16,361 INFO L226 Difference]: Without dead ends: 6682 [2021-11-25 20:13:16,366 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 [2021-11-25 20:13:16,367 INFO L933 BasicCegarLoop]: 3532 mSDtfsCounter, 2392 mSDsluCounter, 7100 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2394 SdHoareTripleChecker+Valid, 9880 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:16,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2394 Valid, 9880 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1142 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2021-11-25 20:13:16,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6682 states. [2021-11-25 20:13:16,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6682 to 6567. [2021-11-25 20:13:16,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6567 states, 3561 states have (on average 1.207806795843864) internal successors, (4301), 3739 states have internal predecessors, (4301), 2358 states have call successors, (2358), 621 states have call predecessors, (2358), 618 states have return successors, (2358), 2310 states have call predecessors, (2358), 2356 states have call successors, (2358) [2021-11-25 20:13:16,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6567 states to 6567 states and 9017 transitions. [2021-11-25 20:13:16,754 INFO L78 Accepts]: Start accepts. Automaton has 6567 states and 9017 transitions. Word has length 82 [2021-11-25 20:13:16,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:16,755 INFO L470 AbstractCegarLoop]: Abstraction has 6567 states and 9017 transitions. [2021-11-25 20:13:16,755 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, (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) [2021-11-25 20:13:16,756 INFO L276 IsEmpty]: Start isEmpty. Operand 6567 states and 9017 transitions. [2021-11-25 20:13:16,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-25 20:13:16,759 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:16,759 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:13:16,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 20:13:16,760 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_usb_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 20:13:16,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:16,760 INFO L85 PathProgramCache]: Analyzing trace with hash 969234186, now seen corresponding path program 1 times [2021-11-25 20:13:16,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:16,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024380382] [2021-11-25 20:13:16,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:16,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:17,161 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-11-25 20:13:17,161 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:17,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024380382] [2021-11-25 20:13:17,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024380382] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:13:17,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116310760] [2021-11-25 20:13:17,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:17,162 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:13:17,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:13:17,167 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:13:17,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 20:13:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:18,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 5235 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 20:13:18,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:13:19,029 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-25 20:13:19,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:13:19,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116310760] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:13:19,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:13:19,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2021-11-25 20:13:19,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828895848] [2021-11-25 20:13:19,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:13:19,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:13:19,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:19,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:13:19,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:13:19,032 INFO L87 Difference]: Start difference. First operand 6567 states and 9017 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 20:13:21,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:13:24,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:24,232 INFO L93 Difference]: Finished difference Result 13132 states and 18023 transitions. [2021-11-25 20:13:24,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:13:24,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 98 [2021-11-25 20:13:24,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:24,269 INFO L225 Difference]: With dead ends: 13132 [2021-11-25 20:13:24,269 INFO L226 Difference]: Without dead ends: 6583 [2021-11-25 20:13:24,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:13:24,316 INFO L933 BasicCegarLoop]: 3251 mSDtfsCounter, 2402 mSDsluCounter, 2146 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2402 SdHoareTripleChecker+Valid, 5156 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:24,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2402 Valid, 5156 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 618 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2021-11-25 20:13:24,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6583 states. [2021-11-25 20:13:24,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6583 to 6571. [2021-11-25 20:13:24,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6571 states, 3561 states have (on average 1.2066835158663296) internal successors, (4297), 3739 states have internal predecessors, (4297), 2360 states have call successors, (2360), 623 states have call predecessors, (2360), 620 states have return successors, (2360), 2312 states have call predecessors, (2360), 2358 states have call successors, (2360) [2021-11-25 20:13:24,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6571 states to 6571 states and 9017 transitions. [2021-11-25 20:13:24,721 INFO L78 Accepts]: Start accepts. Automaton has 6571 states and 9017 transitions. Word has length 98 [2021-11-25 20:13:24,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:24,722 INFO L470 AbstractCegarLoop]: Abstraction has 6571 states and 9017 transitions. [2021-11-25 20:13:24,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 20:13:24,723 INFO L276 IsEmpty]: Start isEmpty. Operand 6571 states and 9017 transitions. [2021-11-25 20:13:24,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-25 20:13:24,730 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:24,730 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:13:24,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 20:13:24,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-25 20:13:24,954 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 20:13:24,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:24,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1222593435, now seen corresponding path program 1 times [2021-11-25 20:13:24,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:24,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274808290] [2021-11-25 20:13:24,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:24,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:25,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:25,241 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:13:25,241 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:25,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274808290] [2021-11-25 20:13:25,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274808290] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:13:25,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:13:25,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:13:25,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794114067] [2021-11-25 20:13:25,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:13:25,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:13:25,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:25,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:13:25,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:13:25,244 INFO L87 Difference]: Start difference. First operand 6571 states and 9017 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2021-11-25 20:13:27,881 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:13:32,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:13:32,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:32,533 INFO L93 Difference]: Finished difference Result 6684 states and 9131 transitions. [2021-11-25 20:13:32,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:13:32,534 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 84 [2021-11-25 20:13:32,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:32,562 INFO L225 Difference]: With dead ends: 6684 [2021-11-25 20:13:32,562 INFO L226 Difference]: Without dead ends: 6682 [2021-11-25 20:13:32,567 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 [2021-11-25 20:13:32,567 INFO L933 BasicCegarLoop]: 3532 mSDtfsCounter, 2375 mSDsluCounter, 7104 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2377 SdHoareTripleChecker+Valid, 9884 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:32,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2377 Valid, 9884 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1141 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2021-11-25 20:13:32,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6682 states. [2021-11-25 20:13:32,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6682 to 6571. [2021-11-25 20:13:32,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6571 states, 3561 states have (on average 1.206402695871946) internal successors, (4296), 3739 states have internal predecessors, (4296), 2360 states have call successors, (2360), 623 states have call predecessors, (2360), 620 states have return successors, (2360), 2312 states have call predecessors, (2360), 2358 states have call successors, (2360) [2021-11-25 20:13:32,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6571 states to 6571 states and 9016 transitions. [2021-11-25 20:13:32,965 INFO L78 Accepts]: Start accepts. Automaton has 6571 states and 9016 transitions. Word has length 84 [2021-11-25 20:13:32,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:32,968 INFO L470 AbstractCegarLoop]: Abstraction has 6571 states and 9016 transitions. [2021-11-25 20:13:32,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2021-11-25 20:13:32,968 INFO L276 IsEmpty]: Start isEmpty. Operand 6571 states and 9016 transitions. [2021-11-25 20:13:32,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-25 20:13:32,970 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:32,970 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:13:32,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 20:13:32,971 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 20:13:32,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:32,971 INFO L85 PathProgramCache]: Analyzing trace with hash 748539769, now seen corresponding path program 1 times [2021-11-25 20:13:32,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:32,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016473523] [2021-11-25 20:13:32,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:32,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:33,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:33,224 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:13:33,224 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:33,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016473523] [2021-11-25 20:13:33,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016473523] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:13:33,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:13:33,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:13:33,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993519827] [2021-11-25 20:13:33,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:13:33,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:13:33,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:33,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:13:33,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:13:33,227 INFO L87 Difference]: Start difference. First operand 6571 states and 9016 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2021-11-25 20:13:35,738 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:13:39,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:13:40,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:40,757 INFO L93 Difference]: Finished difference Result 6682 states and 9129 transitions. [2021-11-25 20:13:40,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:13:40,758 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) Word has length 89 [2021-11-25 20:13:40,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:40,792 INFO L225 Difference]: With dead ends: 6682 [2021-11-25 20:13:40,792 INFO L226 Difference]: Without dead ends: 6680 [2021-11-25 20:13:40,797 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 [2021-11-25 20:13:40,798 INFO L933 BasicCegarLoop]: 3532 mSDtfsCounter, 2374 mSDsluCounter, 7104 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2376 SdHoareTripleChecker+Valid, 9884 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:40,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2376 Valid, 9884 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1142 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2021-11-25 20:13:40,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6680 states. [2021-11-25 20:13:41,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6680 to 6577. [2021-11-25 20:13:41,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6577 states, 3564 states have (on average 1.2062289562289563) internal successors, (4299), 3742 states have internal predecessors, (4299), 2362 states have call successors, (2362), 624 states have call predecessors, (2362), 621 states have return successors, (2362), 2314 states have call predecessors, (2362), 2360 states have call successors, (2362) [2021-11-25 20:13:41,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6577 states to 6577 states and 9023 transitions. [2021-11-25 20:13:41,204 INFO L78 Accepts]: Start accepts. Automaton has 6577 states and 9023 transitions. Word has length 89 [2021-11-25 20:13:41,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:41,204 INFO L470 AbstractCegarLoop]: Abstraction has 6577 states and 9023 transitions. [2021-11-25 20:13:41,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2021-11-25 20:13:41,205 INFO L276 IsEmpty]: Start isEmpty. Operand 6577 states and 9023 transitions. [2021-11-25 20:13:41,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-25 20:13:41,207 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:41,207 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:13:41,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 20:13:41,208 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 20:13:41,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:41,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1886003622, now seen corresponding path program 1 times [2021-11-25 20:13:41,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:41,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740346357] [2021-11-25 20:13:41,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:41,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:41,475 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:13:41,475 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:41,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740346357] [2021-11-25 20:13:41,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740346357] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:13:41,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:13:41,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:13:41,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718257742] [2021-11-25 20:13:41,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:13:41,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:13:41,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:41,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:13:41,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:13:41,477 INFO L87 Difference]: Start difference. First operand 6577 states and 9023 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 20:13:43,959 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:13:47,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:13:47,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:47,945 INFO L93 Difference]: Finished difference Result 6680 states and 9127 transitions. [2021-11-25 20:13:47,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:13:47,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 94 [2021-11-25 20:13:47,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:47,973 INFO L225 Difference]: With dead ends: 6680 [2021-11-25 20:13:47,973 INFO L226 Difference]: Without dead ends: 6678 [2021-11-25 20:13:47,978 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 [2021-11-25 20:13:47,979 INFO L933 BasicCegarLoop]: 3532 mSDtfsCounter, 2371 mSDsluCounter, 7102 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2373 SdHoareTripleChecker+Valid, 9884 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:47,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2373 Valid, 9884 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1139 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2021-11-25 20:13:47,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6678 states. [2021-11-25 20:13:48,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6678 to 6583. [2021-11-25 20:13:48,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6583 states, 3567 states have (on average 1.2060555088309504) internal successors, (4302), 3745 states have internal predecessors, (4302), 2364 states have call successors, (2364), 625 states have call predecessors, (2364), 622 states have return successors, (2364), 2316 states have call predecessors, (2364), 2362 states have call successors, (2364) [2021-11-25 20:13:48,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6583 states to 6583 states and 9030 transitions. [2021-11-25 20:13:48,361 INFO L78 Accepts]: Start accepts. Automaton has 6583 states and 9030 transitions. Word has length 94 [2021-11-25 20:13:48,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:48,362 INFO L470 AbstractCegarLoop]: Abstraction has 6583 states and 9030 transitions. [2021-11-25 20:13:48,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 20:13:48,362 INFO L276 IsEmpty]: Start isEmpty. Operand 6583 states and 9030 transitions. [2021-11-25 20:13:48,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-25 20:13:48,364 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:48,365 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:13:48,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-25 20:13:48,365 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 20:13:48,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:48,366 INFO L85 PathProgramCache]: Analyzing trace with hash 390590525, now seen corresponding path program 1 times [2021-11-25 20:13:48,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:48,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817729736] [2021-11-25 20:13:48,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:48,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:48,631 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:13:48,632 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:48,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817729736] [2021-11-25 20:13:48,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817729736] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:13:48,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:13:48,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:13:48,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819967091] [2021-11-25 20:13:48,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:13:48,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:13:48,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:48,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:13:48,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:13:48,635 INFO L87 Difference]: Start difference. First operand 6583 states and 9030 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 20:13:51,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:13:54,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:54,671 INFO L93 Difference]: Finished difference Result 6678 states and 9125 transitions. [2021-11-25 20:13:54,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:13:54,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 99 [2021-11-25 20:13:54,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:54,703 INFO L225 Difference]: With dead ends: 6678 [2021-11-25 20:13:54,703 INFO L226 Difference]: Without dead ends: 6676 [2021-11-25 20:13:54,707 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 [2021-11-25 20:13:54,708 INFO L933 BasicCegarLoop]: 3532 mSDtfsCounter, 2368 mSDsluCounter, 7104 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2370 SdHoareTripleChecker+Valid, 9884 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:54,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2370 Valid, 9884 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1142 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2021-11-25 20:13:54,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6676 states. [2021-11-25 20:13:55,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6676 to 6589. [2021-11-25 20:13:55,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6589 states, 3570 states have (on average 1.2058823529411764) internal successors, (4305), 3748 states have internal predecessors, (4305), 2366 states have call successors, (2366), 626 states have call predecessors, (2366), 623 states have return successors, (2366), 2318 states have call predecessors, (2366), 2364 states have call successors, (2366) [2021-11-25 20:13:55,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6589 states to 6589 states and 9037 transitions. [2021-11-25 20:13:55,112 INFO L78 Accepts]: Start accepts. Automaton has 6589 states and 9037 transitions. Word has length 99 [2021-11-25 20:13:55,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:55,113 INFO L470 AbstractCegarLoop]: Abstraction has 6589 states and 9037 transitions. [2021-11-25 20:13:55,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 20:13:55,113 INFO L276 IsEmpty]: Start isEmpty. Operand 6589 states and 9037 transitions. [2021-11-25 20:13:55,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-25 20:13:55,116 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:55,116 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:13:55,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-25 20:13:55,116 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 20:13:55,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:55,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1794728202, now seen corresponding path program 1 times [2021-11-25 20:13:55,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:55,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757255715] [2021-11-25 20:13:55,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:55,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:55,368 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:13:55,369 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:55,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757255715] [2021-11-25 20:13:55,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757255715] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:13:55,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:13:55,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:13:55,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024422116] [2021-11-25 20:13:55,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:13:55,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:13:55,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:55,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:13:55,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:13:55,373 INFO L87 Difference]: Start difference. First operand 6589 states and 9037 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-25 20:13:57,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:14:01,882 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:14:02,966 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:14:03,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:03,200 INFO L93 Difference]: Finished difference Result 6676 states and 9123 transitions. [2021-11-25 20:14:03,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:14:03,201 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 104 [2021-11-25 20:14:03,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:03,220 INFO L225 Difference]: With dead ends: 6676 [2021-11-25 20:14:03,220 INFO L226 Difference]: Without dead ends: 6674 [2021-11-25 20:14:03,224 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 [2021-11-25 20:14:03,225 INFO L933 BasicCegarLoop]: 3532 mSDtfsCounter, 2365 mSDsluCounter, 7104 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2367 SdHoareTripleChecker+Valid, 9884 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:03,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2367 Valid, 9884 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1142 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2021-11-25 20:14:03,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6674 states. [2021-11-25 20:14:03,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6674 to 6595. [2021-11-25 20:14:03,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6595 states, 3573 states have (on average 1.205709487825357) internal successors, (4308), 3751 states have internal predecessors, (4308), 2368 states have call successors, (2368), 627 states have call predecessors, (2368), 624 states have return successors, (2368), 2320 states have call predecessors, (2368), 2366 states have call successors, (2368) [2021-11-25 20:14:03,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6595 states to 6595 states and 9044 transitions. [2021-11-25 20:14:03,649 INFO L78 Accepts]: Start accepts. Automaton has 6595 states and 9044 transitions. Word has length 104 [2021-11-25 20:14:03,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:03,649 INFO L470 AbstractCegarLoop]: Abstraction has 6595 states and 9044 transitions. [2021-11-25 20:14:03,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-25 20:14:03,650 INFO L276 IsEmpty]: Start isEmpty. Operand 6595 states and 9044 transitions. [2021-11-25 20:14:03,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-25 20:14:03,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:03,653 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:03,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-25 20:14:03,654 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 20:14:03,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:03,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1965674856, now seen corresponding path program 1 times [2021-11-25 20:14:03,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:03,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138302163] [2021-11-25 20:14:03,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:03,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:03,936 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-11-25 20:14:03,937 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:03,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138302163] [2021-11-25 20:14:03,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138302163] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:14:03,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:14:03,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:14:03,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908785492] [2021-11-25 20:14:03,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:14:03,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:14:03,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:03,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:14:03,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:14:03,940 INFO L87 Difference]: Start difference. First operand 6595 states and 9044 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-25 20:14:06,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:14:09,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:14:11,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:14:12,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:12,494 INFO L93 Difference]: Finished difference Result 13268 states and 18284 transitions. [2021-11-25 20:14:12,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:14:12,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 123 [2021-11-25 20:14:12,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:12,515 INFO L225 Difference]: With dead ends: 13268 [2021-11-25 20:14:12,515 INFO L226 Difference]: Without dead ends: 6793 [2021-11-25 20:14:12,553 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 [2021-11-25 20:14:12,554 INFO L933 BasicCegarLoop]: 2869 mSDtfsCounter, 99 mSDsluCounter, 6426 mSDsCounter, 0 mSdLazyCounter, 1122 mSolverCounterSat, 51 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 8555 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1122 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:12,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 8555 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1122 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2021-11-25 20:14:12,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6793 states. [2021-11-25 20:14:12,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6793 to 6793. [2021-11-25 20:14:12,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6793 states, 3693 states have (on average 1.206607094503114) internal successors, (4456), 3871 states have internal predecessors, (4456), 2443 states have call successors, (2443), 630 states have call predecessors, (2443), 627 states have return successors, (2443), 2395 states have call predecessors, (2443), 2441 states have call successors, (2443) [2021-11-25 20:14:12,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6793 states to 6793 states and 9342 transitions. [2021-11-25 20:14:12,979 INFO L78 Accepts]: Start accepts. Automaton has 6793 states and 9342 transitions. Word has length 123 [2021-11-25 20:14:12,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:12,980 INFO L470 AbstractCegarLoop]: Abstraction has 6793 states and 9342 transitions. [2021-11-25 20:14:12,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-25 20:14:12,981 INFO L276 IsEmpty]: Start isEmpty. Operand 6793 states and 9342 transitions. [2021-11-25 20:14:12,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-25 20:14:12,984 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:12,985 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:12,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-25 20:14:12,987 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 20:14:12,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:12,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1098989513, now seen corresponding path program 1 times [2021-11-25 20:14:12,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:12,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456518063] [2021-11-25 20:14:12,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:12,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:13,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:13,453 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-11-25 20:14:13,454 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:13,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456518063] [2021-11-25 20:14:13,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456518063] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:14:13,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:14:13,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 20:14:13,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096311162] [2021-11-25 20:14:13,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:14:13,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:14:13,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:13,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:14:13,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:14:13,457 INFO L87 Difference]: Start difference. First operand 6793 states and 9342 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-25 20:14:17,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:14:23,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:14:24,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:24,701 INFO L93 Difference]: Finished difference Result 9940 states and 13619 transitions. [2021-11-25 20:14:24,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 20:14:24,702 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 127 [2021-11-25 20:14:24,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:24,746 INFO L225 Difference]: With dead ends: 9940 [2021-11-25 20:14:24,746 INFO L226 Difference]: Without dead ends: 9938 [2021-11-25 20:14:24,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:14:24,755 INFO L933 BasicCegarLoop]: 4103 mSDtfsCounter, 2995 mSDsluCounter, 15223 mSDsCounter, 0 mSdLazyCounter, 3782 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2999 SdHoareTripleChecker+Valid, 17605 SdHoareTripleChecker+Invalid, 3787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3782 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:24,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2999 Valid, 17605 Invalid, 3787 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 3782 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2021-11-25 20:14:24,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9938 states. [2021-11-25 20:14:25,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9938 to 9749. [2021-11-25 20:14:25,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9749 states, 5300 states have (on average 1.2045283018867925) internal successors, (6384), 5542 states have internal predecessors, (6384), 3496 states have call successors, (3496), 929 states have call predecessors, (3496), 923 states have return successors, (3531), 3424 states have call predecessors, (3531), 3494 states have call successors, (3531) [2021-11-25 20:14:25,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9749 states to 9749 states and 13411 transitions. [2021-11-25 20:14:25,356 INFO L78 Accepts]: Start accepts. Automaton has 9749 states and 13411 transitions. Word has length 127 [2021-11-25 20:14:25,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:25,357 INFO L470 AbstractCegarLoop]: Abstraction has 9749 states and 13411 transitions. [2021-11-25 20:14:25,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-25 20:14:25,357 INFO L276 IsEmpty]: Start isEmpty. Operand 9749 states and 13411 transitions. [2021-11-25 20:14:25,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-25 20:14:25,360 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:25,360 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:25,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-25 20:14:25,360 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 20:14:25,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:25,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1788669281, now seen corresponding path program 1 times [2021-11-25 20:14:25,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:25,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006745642] [2021-11-25 20:14:25,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:25,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:25,607 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:14:25,607 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:25,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006745642] [2021-11-25 20:14:25,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006745642] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:14:25,607 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:14:25,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:14:25,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201587583] [2021-11-25 20:14:25,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:14:25,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:14:25,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:25,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:14:25,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:14:25,609 INFO L87 Difference]: Start difference. First operand 9749 states and 13411 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-25 20:14:28,245 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:14:32,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:14:32,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:32,720 INFO L93 Difference]: Finished difference Result 9826 states and 13487 transitions. [2021-11-25 20:14:32,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:14:32,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 109 [2021-11-25 20:14:32,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:32,747 INFO L225 Difference]: With dead ends: 9826 [2021-11-25 20:14:32,748 INFO L226 Difference]: Without dead ends: 9824 [2021-11-25 20:14:32,752 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 [2021-11-25 20:14:32,752 INFO L933 BasicCegarLoop]: 3532 mSDtfsCounter, 2360 mSDsluCounter, 7102 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2362 SdHoareTripleChecker+Valid, 9884 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:32,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2362 Valid, 9884 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1139 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2021-11-25 20:14:32,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9824 states. [2021-11-25 20:14:33,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9824 to 9755. [2021-11-25 20:14:33,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9755 states, 5303 states have (on average 1.2044125966434094) internal successors, (6387), 5545 states have internal predecessors, (6387), 3498 states have call successors, (3498), 930 states have call predecessors, (3498), 924 states have return successors, (3533), 3426 states have call predecessors, (3533), 3496 states have call successors, (3533) [2021-11-25 20:14:33,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9755 states to 9755 states and 13418 transitions. [2021-11-25 20:14:33,259 INFO L78 Accepts]: Start accepts. Automaton has 9755 states and 13418 transitions. Word has length 109 [2021-11-25 20:14:33,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:33,259 INFO L470 AbstractCegarLoop]: Abstraction has 9755 states and 13418 transitions. [2021-11-25 20:14:33,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-25 20:14:33,260 INFO L276 IsEmpty]: Start isEmpty. Operand 9755 states and 13418 transitions. [2021-11-25 20:14:33,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-25 20:14:33,263 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:33,263 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:33,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-25 20:14:33,264 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 20:14:33,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:33,264 INFO L85 PathProgramCache]: Analyzing trace with hash 718844778, now seen corresponding path program 1 times [2021-11-25 20:14:33,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:33,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242891280] [2021-11-25 20:14:33,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:33,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:33,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:33,587 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-11-25 20:14:33,588 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:33,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242891280] [2021-11-25 20:14:33,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242891280] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:14:33,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:14:33,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:14:33,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770632552] [2021-11-25 20:14:33,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:14:33,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:14:33,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:33,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:14:33,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:14:33,591 INFO L87 Difference]: Start difference. First operand 9755 states and 13418 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-25 20:14:35,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:14:39,584 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:14:39,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:39,830 INFO L93 Difference]: Finished difference Result 19453 states and 26812 transitions. [2021-11-25 20:14:39,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:14:39,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 130 [2021-11-25 20:14:39,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:39,860 INFO L225 Difference]: With dead ends: 19453 [2021-11-25 20:14:39,860 INFO L226 Difference]: Without dead ends: 9818 [2021-11-25 20:14:39,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:14:39,889 INFO L933 BasicCegarLoop]: 3533 mSDtfsCounter, 2329 mSDsluCounter, 3188 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2329 SdHoareTripleChecker+Valid, 6353 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:39,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2329 Valid, 6353 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 756 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2021-11-25 20:14:39,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9818 states. [2021-11-25 20:14:40,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9818 to 9751. [2021-11-25 20:14:40,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9751 states, 5299 states have (on average 1.2038120400075485) internal successors, (6379), 5541 states have internal predecessors, (6379), 3498 states have call successors, (3498), 930 states have call predecessors, (3498), 924 states have return successors, (3533), 3426 states have call predecessors, (3533), 3496 states have call successors, (3533) [2021-11-25 20:14:40,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9751 states to 9751 states and 13410 transitions. [2021-11-25 20:14:40,447 INFO L78 Accepts]: Start accepts. Automaton has 9751 states and 13410 transitions. Word has length 130 [2021-11-25 20:14:40,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:40,448 INFO L470 AbstractCegarLoop]: Abstraction has 9751 states and 13410 transitions. [2021-11-25 20:14:40,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-25 20:14:40,449 INFO L276 IsEmpty]: Start isEmpty. Operand 9751 states and 13410 transitions. [2021-11-25 20:14:40,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-25 20:14:40,452 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:40,452 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:40,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-25 20:14:40,453 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 20:14:40,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:40,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1473775735, now seen corresponding path program 1 times [2021-11-25 20:14:40,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:40,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885960293] [2021-11-25 20:14:40,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:40,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:40,720 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-11-25 20:14:40,720 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:40,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885960293] [2021-11-25 20:14:40,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885960293] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:14:40,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:14:40,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:14:40,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525355233] [2021-11-25 20:14:40,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:14:40,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:14:40,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:40,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:14:40,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:14:40,723 INFO L87 Difference]: Start difference. First operand 9751 states and 13410 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2021-11-25 20:14:43,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:14:46,670 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:14:46,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:46,919 INFO L93 Difference]: Finished difference Result 19397 states and 26792 transitions. [2021-11-25 20:14:46,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:14:46,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 135 [2021-11-25 20:14:46,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:46,962 INFO L225 Difference]: With dead ends: 19397 [2021-11-25 20:14:46,962 INFO L226 Difference]: Without dead ends: 9766 [2021-11-25 20:14:46,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:14:46,992 INFO L933 BasicCegarLoop]: 2847 mSDtfsCounter, 1 mSDsluCounter, 3212 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5690 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:46,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 5690 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 744 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2021-11-25 20:14:47,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9766 states. [2021-11-25 20:14:47,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9766 to 9756. [2021-11-25 20:14:47,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9756 states, 5304 states have (on average 1.2036199095022624) internal successors, (6384), 5546 states have internal predecessors, (6384), 3498 states have call successors, (3498), 930 states have call predecessors, (3498), 924 states have return successors, (3533), 3426 states have call predecessors, (3533), 3496 states have call successors, (3533) [2021-11-25 20:14:47,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9756 states to 9756 states and 13415 transitions. [2021-11-25 20:14:47,411 INFO L78 Accepts]: Start accepts. Automaton has 9756 states and 13415 transitions. Word has length 135 [2021-11-25 20:14:47,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:47,411 INFO L470 AbstractCegarLoop]: Abstraction has 9756 states and 13415 transitions. [2021-11-25 20:14:47,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2021-11-25 20:14:47,412 INFO L276 IsEmpty]: Start isEmpty. Operand 9756 states and 13415 transitions. [2021-11-25 20:14:47,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-25 20:14:47,414 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:47,415 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:47,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-25 20:14:47,415 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 20:14:47,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:47,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1896628475, now seen corresponding path program 1 times [2021-11-25 20:14:47,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:47,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575972100] [2021-11-25 20:14:47,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:47,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:47,812 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:14:47,813 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:47,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575972100] [2021-11-25 20:14:47,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575972100] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:14:47,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:14:47,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:14:47,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131671061] [2021-11-25 20:14:47,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:14:47,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:14:47,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:47,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:14:47,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:14:47,818 INFO L87 Difference]: Start difference. First operand 9756 states and 13415 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-25 20:14:50,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:14:53,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:53,531 INFO L93 Difference]: Finished difference Result 9823 states and 13481 transitions. [2021-11-25 20:14:53,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:14:53,531 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 114 [2021-11-25 20:14:53,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:53,559 INFO L225 Difference]: With dead ends: 9823 [2021-11-25 20:14:53,559 INFO L226 Difference]: Without dead ends: 9821 [2021-11-25 20:14:53,565 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 [2021-11-25 20:14:53,565 INFO L933 BasicCegarLoop]: 3532 mSDtfsCounter, 2352 mSDsluCounter, 7104 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2354 SdHoareTripleChecker+Valid, 9884 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:53,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2354 Valid, 9884 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1142 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2021-11-25 20:14:53,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9821 states. [2021-11-25 20:14:54,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9821 to 9762. [2021-11-25 20:14:54,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9762 states, 5307 states have (on average 1.2035048049745618) internal successors, (6387), 5549 states have internal predecessors, (6387), 3500 states have call successors, (3500), 931 states have call predecessors, (3500), 925 states have return successors, (3535), 3428 states have call predecessors, (3535), 3498 states have call successors, (3535) [2021-11-25 20:14:54,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9762 states to 9762 states and 13422 transitions. [2021-11-25 20:14:54,103 INFO L78 Accepts]: Start accepts. Automaton has 9762 states and 13422 transitions. Word has length 114 [2021-11-25 20:14:54,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:54,104 INFO L470 AbstractCegarLoop]: Abstraction has 9762 states and 13422 transitions. [2021-11-25 20:14:54,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-25 20:14:54,104 INFO L276 IsEmpty]: Start isEmpty. Operand 9762 states and 13422 transitions. [2021-11-25 20:14:54,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-25 20:14:54,107 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:54,108 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:54,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-25 20:14:54,108 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 20:14:54,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:54,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1907854655, now seen corresponding path program 1 times [2021-11-25 20:14:54,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:54,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042623462] [2021-11-25 20:14:54,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:54,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:54,367 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-25 20:14:54,367 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:54,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042623462] [2021-11-25 20:14:54,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042623462] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:14:54,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011964714] [2021-11-25 20:14:54,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:54,368 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:54,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:14:54,374 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:14:54,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_258d8fb5-5269-41f6-adee-7d5eb2ccb30c/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 20:14:55,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:55,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 5322 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 20:14:55,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:14:55,858 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-25 20:14:55,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:14:56,163 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-25 20:14:56,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011964714] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:14:56,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [859041169] [2021-11-25 20:14:56,187 INFO L159 IcfgInterpreter]: Started Sifa with 96 locations of interest [2021-11-25 20:14:56,187 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:14:56,192 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:14:56,197 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:14:56,198 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:15:12,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2021-11-25 20:15:15,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2021-11-25 20:15:16,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2021-11-25 20:15:16,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2021-11-25 20:15:19,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2021-11-25 20:15:19,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2021-11-25 20:15:22,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31