./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/bin/utaipan-EQgc7hIp5V --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 b20f48966671566afed85875d0d94a6951898c9c2a2bdf71b35576aeaa27c268 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:56:21,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:56:21,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:56:21,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:56:21,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:56:21,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:56:21,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:56:21,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:56:21,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:56:21,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:56:21,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:56:21,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:56:21,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:56:21,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:56:21,673 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:56:21,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:56:21,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:56:21,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:56:21,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:56:21,683 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:56:21,685 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:56:21,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:56:21,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:56:21,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:56:21,693 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:56:21,694 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:56:21,694 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:56:21,695 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:56:21,696 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:56:21,697 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:56:21,697 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:56:21,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:56:21,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:56:21,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:56:21,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:56:21,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:56:21,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:56:21,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:56:21,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:56:21,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:56:21,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:56:21,712 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 01:56:21,763 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:56:21,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:56:21,764 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 01:56:21,765 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 01:56:21,768 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:56:21,768 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 01:56:21,769 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 01:56:21,769 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 01:56:21,769 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 01:56:21,769 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 01:56:21,769 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 01:56:21,770 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 01:56:21,770 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 01:56:21,770 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 01:56:21,770 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 01:56:21,770 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 01:56:21,771 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 01:56:21,771 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 01:56:21,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:56:21,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:56:21,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:56:21,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:56:21,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:56:21,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:56:21,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:56:21,773 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:56:21,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:56:21,773 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:56:21,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 01:56:21,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:56:21,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:56:21,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:56:21,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:56:21,774 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 01:56:21,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:56:21,775 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:56:21,775 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 01:56:21,775 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 01:56:21,775 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_a1178789-388e-4225-a407-45bea4d59eaa/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b20f48966671566afed85875d0d94a6951898c9c2a2bdf71b35576aeaa27c268 [2021-11-23 01:56:22,064 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:56:22,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:56:22,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:56:22,093 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:56:22,094 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:56:22,095 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i [2021-11-23 01:56:22,159 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/bin/utaipan-EQgc7hIp5V/data/4dd725af1/c64ac81d960c4cf4ad410c35d826b28e/FLAG39793f2fe [2021-11-23 01:56:23,273 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:56:23,274 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i [2021-11-23 01:56:23,356 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/bin/utaipan-EQgc7hIp5V/data/4dd725af1/c64ac81d960c4cf4ad410c35d826b28e/FLAG39793f2fe [2021-11-23 01:56:23,521 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/bin/utaipan-EQgc7hIp5V/data/4dd725af1/c64ac81d960c4cf4ad410c35d826b28e [2021-11-23 01:56:23,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:56:23,526 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:56:23,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:56:23,529 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:56:23,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:56:23,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:56:23" (1/1) ... [2021-11-23 01:56:23,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10e9f811 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:23, skipping insertion in model container [2021-11-23 01:56:23,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:56:23" (1/1) ... [2021-11-23 01:56:23,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:56:23,789 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:56:30,502 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580060,580073] [2021-11-23 01:56:30,505 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580205,580218] [2021-11-23 01:56:30,506 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580351,580364] [2021-11-23 01:56:30,506 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580516,580529] [2021-11-23 01:56:30,507 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580674,580687] [2021-11-23 01:56:30,508 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580832,580845] [2021-11-23 01:56:30,508 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580990,581003] [2021-11-23 01:56:30,509 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581150,581163] [2021-11-23 01:56:30,517 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581309,581322] [2021-11-23 01:56:30,518 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581448,581461] [2021-11-23 01:56:30,519 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581590,581603] [2021-11-23 01:56:30,519 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581739,581752] [2021-11-23 01:56:30,520 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581878,581891] [2021-11-23 01:56:30,521 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582033,582046] [2021-11-23 01:56:30,521 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582193,582206] [2021-11-23 01:56:30,522 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582344,582357] [2021-11-23 01:56:30,523 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582495,582508] [2021-11-23 01:56:30,523 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582647,582660] [2021-11-23 01:56:30,525 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582796,582809] [2021-11-23 01:56:30,525 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582944,582957] [2021-11-23 01:56:30,526 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583101,583114] [2021-11-23 01:56:30,526 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583250,583263] [2021-11-23 01:56:30,527 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583406,583419] [2021-11-23 01:56:30,528 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583559,583572] [2021-11-23 01:56:30,529 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583705,583718] [2021-11-23 01:56:30,530 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583848,583861] [2021-11-23 01:56:30,530 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584000,584013] [2021-11-23 01:56:30,531 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584146,584159] [2021-11-23 01:56:30,532 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584291,584304] [2021-11-23 01:56:30,533 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584445,584458] [2021-11-23 01:56:30,534 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584596,584609] [2021-11-23 01:56:30,535 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584751,584764] [2021-11-23 01:56:30,535 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584903,584916] [2021-11-23 01:56:30,536 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585058,585071] [2021-11-23 01:56:30,536 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585222,585235] [2021-11-23 01:56:30,537 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585378,585391] [2021-11-23 01:56:30,538 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585542,585555] [2021-11-23 01:56:30,538 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585684,585697] [2021-11-23 01:56:30,539 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585842,585855] [2021-11-23 01:56:30,539 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586009,586022] [2021-11-23 01:56:30,540 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586168,586181] [2021-11-23 01:56:30,540 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586327,586340] [2021-11-23 01:56:30,541 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586476,586489] [2021-11-23 01:56:30,541 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586623,586636] [2021-11-23 01:56:30,542 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586762,586775] [2021-11-23 01:56:30,543 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586925,586938] [2021-11-23 01:56:30,543 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587091,587104] [2021-11-23 01:56:30,545 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587255,587268] [2021-11-23 01:56:30,545 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587420,587433] [2021-11-23 01:56:30,546 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587585,587598] [2021-11-23 01:56:30,546 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587751,587764] [2021-11-23 01:56:30,547 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587916,587929] [2021-11-23 01:56:30,547 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588083,588096] [2021-11-23 01:56:30,548 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588243,588256] [2021-11-23 01:56:30,549 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588405,588418] [2021-11-23 01:56:30,550 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588564,588577] [2021-11-23 01:56:30,550 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588710,588723] [2021-11-23 01:56:30,551 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588853,588866] [2021-11-23 01:56:30,558 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588997,589010] [2021-11-23 01:56:30,558 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589140,589153] [2021-11-23 01:56:30,559 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589284,589297] [2021-11-23 01:56:30,560 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589425,589438] [2021-11-23 01:56:30,560 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589563,589576] [2021-11-23 01:56:30,561 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589721,589734] [2021-11-23 01:56:30,561 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589880,589893] [2021-11-23 01:56:30,562 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590036,590049] [2021-11-23 01:56:30,562 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590185,590198] [2021-11-23 01:56:30,563 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590337,590350] [2021-11-23 01:56:30,563 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590488,590501] [2021-11-23 01:56:30,564 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590637,590650] [2021-11-23 01:56:30,564 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590789,590802] [2021-11-23 01:56:30,565 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590937,590950] [2021-11-23 01:56:30,566 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591090,591103] [2021-11-23 01:56:30,566 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591241,591254] [2021-11-23 01:56:30,567 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591391,591404] [2021-11-23 01:56:30,567 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591538,591551] [2021-11-23 01:56:30,567 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591689,591702] [2021-11-23 01:56:30,568 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591840,591853] [2021-11-23 01:56:30,568 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591988,592001] [2021-11-23 01:56:30,569 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592154,592167] [2021-11-23 01:56:30,569 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592323,592336] [2021-11-23 01:56:30,569 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592490,592503] [2021-11-23 01:56:30,570 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592658,592671] [2021-11-23 01:56:30,570 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_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592808,592821] [2021-11-23 01:56:30,572 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592955,592968] [2021-11-23 01:56:30,572 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[593116,593129] [2021-11-23 01:56:30,573 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[593286,593299] [2021-11-23 01:56:30,573 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[593448,593461] [2021-11-23 01:56:30,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:56:30,620 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:56:31,288 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580060,580073] [2021-11-23 01:56:31,289 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580205,580218] [2021-11-23 01:56:31,294 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580351,580364] [2021-11-23 01:56:31,295 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580516,580529] [2021-11-23 01:56:31,299 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580674,580687] [2021-11-23 01:56:31,300 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580832,580845] [2021-11-23 01:56:31,300 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580990,581003] [2021-11-23 01:56:31,301 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581150,581163] [2021-11-23 01:56:31,301 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581309,581322] [2021-11-23 01:56:31,302 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581448,581461] [2021-11-23 01:56:31,303 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581590,581603] [2021-11-23 01:56:31,303 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581739,581752] [2021-11-23 01:56:31,304 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581878,581891] [2021-11-23 01:56:31,304 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582033,582046] [2021-11-23 01:56:31,305 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582193,582206] [2021-11-23 01:56:31,305 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582344,582357] [2021-11-23 01:56:31,306 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582495,582508] [2021-11-23 01:56:31,306 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582647,582660] [2021-11-23 01:56:31,307 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582796,582809] [2021-11-23 01:56:31,307 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582944,582957] [2021-11-23 01:56:31,307 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583101,583114] [2021-11-23 01:56:31,308 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583250,583263] [2021-11-23 01:56:31,309 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583406,583419] [2021-11-23 01:56:31,310 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583559,583572] [2021-11-23 01:56:31,310 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583705,583718] [2021-11-23 01:56:31,310 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583848,583861] [2021-11-23 01:56:31,311 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584000,584013] [2021-11-23 01:56:31,312 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584146,584159] [2021-11-23 01:56:31,312 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584291,584304] [2021-11-23 01:56:31,313 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584445,584458] [2021-11-23 01:56:31,313 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584596,584609] [2021-11-23 01:56:31,313 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584751,584764] [2021-11-23 01:56:31,314 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584903,584916] [2021-11-23 01:56:31,315 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585058,585071] [2021-11-23 01:56:31,315 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585222,585235] [2021-11-23 01:56:31,316 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585378,585391] [2021-11-23 01:56:31,317 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585542,585555] [2021-11-23 01:56:31,317 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585684,585697] [2021-11-23 01:56:31,318 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585842,585855] [2021-11-23 01:56:31,318 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586009,586022] [2021-11-23 01:56:31,319 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586168,586181] [2021-11-23 01:56:31,320 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586327,586340] [2021-11-23 01:56:31,320 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586476,586489] [2021-11-23 01:56:31,321 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586623,586636] [2021-11-23 01:56:31,321 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586762,586775] [2021-11-23 01:56:31,322 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586925,586938] [2021-11-23 01:56:31,322 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587091,587104] [2021-11-23 01:56:31,322 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587255,587268] [2021-11-23 01:56:31,323 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587420,587433] [2021-11-23 01:56:31,323 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587585,587598] [2021-11-23 01:56:31,324 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587751,587764] [2021-11-23 01:56:31,324 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587916,587929] [2021-11-23 01:56:31,324 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588083,588096] [2021-11-23 01:56:31,325 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588243,588256] [2021-11-23 01:56:31,327 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588405,588418] [2021-11-23 01:56:31,328 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588564,588577] [2021-11-23 01:56:31,330 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588710,588723] [2021-11-23 01:56:31,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588853,588866] [2021-11-23 01:56:31,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588997,589010] [2021-11-23 01:56:31,332 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589140,589153] [2021-11-23 01:56:31,333 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589284,589297] [2021-11-23 01:56:31,334 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589425,589438] [2021-11-23 01:56:31,334 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589563,589576] [2021-11-23 01:56:31,335 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589721,589734] [2021-11-23 01:56:31,335 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589880,589893] [2021-11-23 01:56:31,345 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590036,590049] [2021-11-23 01:56:31,348 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590185,590198] [2021-11-23 01:56:31,348 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590337,590350] [2021-11-23 01:56:31,349 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590488,590501] [2021-11-23 01:56:31,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590637,590650] [2021-11-23 01:56:31,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590789,590802] [2021-11-23 01:56:31,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590937,590950] [2021-11-23 01:56:31,351 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591090,591103] [2021-11-23 01:56:31,351 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591241,591254] [2021-11-23 01:56:31,352 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591391,591404] [2021-11-23 01:56:31,352 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591538,591551] [2021-11-23 01:56:31,353 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591689,591702] [2021-11-23 01:56:31,353 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591840,591853] [2021-11-23 01:56:31,355 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591988,592001] [2021-11-23 01:56:31,355 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592154,592167] [2021-11-23 01:56:31,356 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592323,592336] [2021-11-23 01:56:31,357 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592490,592503] [2021-11-23 01:56:31,358 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592658,592671] [2021-11-23 01:56:31,359 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592808,592821] [2021-11-23 01:56:31,359 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592955,592968] [2021-11-23 01:56:31,360 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[593116,593129] [2021-11-23 01:56:31,360 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[593286,593299] [2021-11-23 01:56:31,361 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[593448,593461] [2021-11-23 01:56:31,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:56:31,578 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:56:31,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:31 WrapperNode [2021-11-23 01:56:31,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:56:31,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:56:31,580 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:56:31,580 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:56:31,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:31" (1/1) ... [2021-11-23 01:56:31,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:31" (1/1) ... [2021-11-23 01:56:32,216 INFO L137 Inliner]: procedures = 758, calls = 7229, calls flagged for inlining = 371, calls inlined = 290, statements flattened = 13761 [2021-11-23 01:56:32,217 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:56:32,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:56:32,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:56:32,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:56:32,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:31" (1/1) ... [2021-11-23 01:56:32,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:31" (1/1) ... [2021-11-23 01:56:32,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:31" (1/1) ... [2021-11-23 01:56:32,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:31" (1/1) ... [2021-11-23 01:56:32,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:31" (1/1) ... [2021-11-23 01:56:32,902 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:31" (1/1) ... [2021-11-23 01:56:32,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:31" (1/1) ... [2021-11-23 01:56:33,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:56:33,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:56:33,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:56:33,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:56:33,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:31" (1/1) ... [2021-11-23 01:56:33,048 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:56:33,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:56:33,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 01:56:33,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 01:56:33,118 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_pcie_error_reporting [2021-11-23 01:56:33,118 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_pcie_error_reporting [2021-11-23 01:56:33,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_98 [2021-11-23 01:56:33,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_98 [2021-11-23 01:56:33,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-23 01:56:33,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-23 01:56:33,119 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-23 01:56:33,119 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-23 01:56:33,119 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-23 01:56:33,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 01:56:33,119 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 01:56:33,120 INFO L130 BoogieDeclarations]: Found specification of procedure skd_quiesce_dev [2021-11-23 01:56:33,120 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_quiesce_dev [2021-11-23 01:56:33,120 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-23 01:56:33,120 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-23 01:56:33,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 01:56:33,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 01:56:33,120 INFO L130 BoogieDeclarations]: Found specification of procedure skd_cons_sg_list [2021-11-23 01:56:33,121 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_cons_sg_list [2021-11-23 01:56:33,121 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-23 01:56:33,121 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-23 01:56:33,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-23 01:56:33,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-23 01:56:33,121 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-11-23 01:56:33,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-11-23 01:56:33,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-23 01:56:33,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-23 01:56:33,122 INFO L130 BoogieDeclarations]: Found specification of procedure __clear_bit [2021-11-23 01:56:33,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __clear_bit [2021-11-23 01:56:33,122 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-23 01:56:33,122 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-23 01:56:33,122 INFO L130 BoogieDeclarations]: Found specification of procedure queue_flag_set_unlocked [2021-11-23 01:56:33,123 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_flag_set_unlocked [2021-11-23 01:56:33,123 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_pcie_error_reporting [2021-11-23 01:56:33,123 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_pcie_error_reporting [2021-11-23 01:56:33,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-23 01:56:33,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-23 01:56:33,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-23 01:56:33,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-23 01:56:33,124 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-23 01:56:33,124 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-23 01:56:33,124 INFO L130 BoogieDeclarations]: Found specification of procedure skd_pci_remove [2021-11-23 01:56:33,124 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_pci_remove [2021-11-23 01:56:33,124 INFO L130 BoogieDeclarations]: Found specification of procedure skd_isr_fwstate [2021-11-23 01:56:33,124 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_isr_fwstate [2021-11-23 01:56:33,124 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_disappeared [2021-11-23 01:56:33,125 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_disappeared [2021-11-23 01:56:33,125 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-11-23 01:56:33,125 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-11-23 01:56:33,125 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_skreq [2021-11-23 01:56:33,125 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_skreq [2021-11-23 01:56:33,126 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-23 01:56:33,126 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-23 01:56:33,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 01:56:33,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 01:56:33,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 01:56:33,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 01:56:33,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-23 01:56:33,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-23 01:56:33,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:56:33,127 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2021-11-23 01:56:33,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2021-11-23 01:56:33,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-23 01:56:33,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-23 01:56:33,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_110 [2021-11-23 01:56:33,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_110 [2021-11-23 01:56:33,132 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-11-23 01:56:33,132 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-11-23 01:56:33,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 01:56:33,133 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-23 01:56:33,133 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-23 01:56:33,133 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-23 01:56:33,133 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-23 01:56:33,133 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2021-11-23 01:56:33,135 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2021-11-23 01:56:33,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 01:56:33,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-23 01:56:33,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-23 01:56:33,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 01:56:33,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 01:56:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure pci_zalloc_consistent [2021-11-23 01:56:33,136 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_zalloc_consistent [2021-11-23 01:56:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-23 01:56:33,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-23 01:56:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 01:56:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-23 01:56:33,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-23 01:56:33,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-23 01:56:33,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-23 01:56:33,138 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2021-11-23 01:56:33,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2021-11-23 01:56:33,138 INFO L130 BoogieDeclarations]: Found specification of procedure skd_log_check_status [2021-11-23 01:56:33,139 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_log_check_status [2021-11-23 01:56:33,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 01:56:33,139 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 01:56:33,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-23 01:56:33,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-23 01:56:33,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-23 01:56:33,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-23 01:56:33,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-23 01:56:33,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-23 01:56:33,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 01:56:33,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 01:56:33,140 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-23 01:56:33,140 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-23 01:56:33,140 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-11-23 01:56:33,141 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-11-23 01:56:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_queue [2021-11-23 01:56:33,141 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_queue [2021-11-23 01:56:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-23 01:56:33,141 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-23 01:56:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-23 01:56:33,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-23 01:56:33,142 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-23 01:56:33,142 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-23 01:56:33,142 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2021-11-23 01:56:33,142 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2021-11-23 01:56:33,143 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_regions [2021-11-23 01:56:33,143 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_regions [2021-11-23 01:56:33,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-23 01:56:33,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-23 01:56:33,144 INFO L130 BoogieDeclarations]: Found specification of procedure skd_isr [2021-11-23 01:56:33,144 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_isr [2021-11-23 01:56:33,144 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_irq [2021-11-23 01:56:33,144 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_irq [2021-11-23 01:56:33,144 INFO L130 BoogieDeclarations]: Found specification of procedure skd_free_sg_list [2021-11-23 01:56:33,144 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_free_sg_list [2021-11-23 01:56:33,144 INFO L130 BoogieDeclarations]: Found specification of procedure skd_destruct [2021-11-23 01:56:33,145 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_destruct [2021-11-23 01:56:33,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:56:33,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-23 01:56:33,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-23 01:56:33,145 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_request [2021-11-23 01:56:33,145 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_request [2021-11-23 01:56:33,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:56:33,146 INFO L130 BoogieDeclarations]: Found specification of procedure skd_send_special_fitmsg [2021-11-23 01:56:33,146 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_send_special_fitmsg [2021-11-23 01:56:33,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 01:56:33,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 01:56:33,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 01:56:33,146 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2021-11-23 01:56:33,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2021-11-23 01:56:33,147 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 01:56:33,147 INFO L130 BoogieDeclarations]: Found specification of procedure skd_pci_resume [2021-11-23 01:56:33,147 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_pci_resume [2021-11-23 01:56:33,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_skd_device [2021-11-23 01:56:33,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_skd_device [2021-11-23 01:56:33,147 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-23 01:56:33,147 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-23 01:56:33,148 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_msix [2021-11-23 01:56:33,148 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_msix [2021-11-23 01:56:33,148 INFO L130 BoogieDeclarations]: Found specification of procedure skd_end_request [2021-11-23 01:56:33,148 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_end_request [2021-11-23 01:56:33,148 INFO L130 BoogieDeclarations]: Found specification of procedure skd_recover_requests [2021-11-23 01:56:33,148 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_recover_requests [2021-11-23 01:56:33,148 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-23 01:56:33,148 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-23 01:56:33,149 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user [2021-11-23 01:56:33,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user [2021-11-23 01:56:33,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-23 01:56:33,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-23 01:56:33,149 INFO L130 BoogieDeclarations]: Found specification of procedure blk_peek_request [2021-11-23 01:56:33,149 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_peek_request [2021-11-23 01:56:33,149 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-23 01:56:33,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-23 01:56:33,150 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-23 01:56:33,150 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-23 01:56:33,150 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-11-23 01:56:33,150 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-11-23 01:56:33,150 INFO L130 BoogieDeclarations]: Found specification of procedure skd_isr_msg_from_dev [2021-11-23 01:56:33,150 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_isr_msg_from_dev [2021-11-23 01:56:33,151 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-23 01:56:33,151 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-23 01:56:33,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:56:33,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:56:33,151 INFO L130 BoogieDeclarations]: Found specification of procedure writeq [2021-11-23 01:56:33,151 INFO L138 BoogieDeclarations]: Found implementation of procedure writeq [2021-11-23 01:56:33,151 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_irq [2021-11-23 01:56:33,152 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_irq [2021-11-23 01:56:33,152 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-23 01:56:33,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-23 01:56:33,152 INFO L130 BoogieDeclarations]: Found specification of procedure blk_stop_queue [2021-11-23 01:56:33,152 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_stop_queue [2021-11-23 01:56:33,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 01:56:33,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 01:56:33,153 INFO L130 BoogieDeclarations]: Found specification of procedure skd_skdev_state_to_str [2021-11-23 01:56:33,153 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_skdev_state_to_str [2021-11-23 01:56:33,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 01:56:33,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 01:56:33,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-23 01:56:33,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-23 01:56:33,154 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-23 01:56:33,154 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-23 01:56:33,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_skd_device [2021-11-23 01:56:33,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_skd_device [2021-11-23 01:56:33,154 INFO L130 BoogieDeclarations]: Found specification of procedure skd_start_device [2021-11-23 01:56:33,154 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_start_device [2021-11-23 01:56:33,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-23 01:56:33,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-23 01:56:33,155 INFO L130 BoogieDeclarations]: Found specification of procedure skd_postop_sg_list [2021-11-23 01:56:33,155 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_postop_sg_list [2021-11-23 01:56:33,155 INFO L130 BoogieDeclarations]: Found specification of procedure skd_request_fn [2021-11-23 01:56:33,155 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_request_fn [2021-11-23 01:56:33,155 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2021-11-23 01:56:33,155 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2021-11-23 01:56:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure skd_send_fitmsg [2021-11-23 01:56:33,156 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_send_fitmsg [2021-11-23 01:56:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2021-11-23 01:56:33,156 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2021-11-23 01:56:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_sectors [2021-11-23 01:56:33,156 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_sectors [2021-11-23 01:56:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure skd_log_skreq [2021-11-23 01:56:33,157 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_log_skreq [2021-11-23 01:56:33,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 01:56:33,157 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 01:56:33,157 INFO L130 BoogieDeclarations]: Found specification of procedure skd_disable_interrupts [2021-11-23 01:56:33,157 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_disable_interrupts [2021-11-23 01:56:33,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-23 01:56:33,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-23 01:56:33,157 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-23 01:56:33,158 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-23 01:56:33,158 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_fault [2021-11-23 01:56:33,158 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_fault [2021-11-23 01:56:33,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-23 01:56:33,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-23 01:56:33,158 INFO L130 BoogieDeclarations]: Found specification of procedure skd_isr_completion_posted [2021-11-23 01:56:33,158 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_isr_completion_posted [2021-11-23 01:56:33,158 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2021-11-23 01:56:33,159 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2021-11-23 01:56:33,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-23 01:56:33,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-23 01:56:33,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 01:56:33,159 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 01:56:33,159 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 01:56:33,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-23 01:56:33,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-23 01:56:33,160 INFO L130 BoogieDeclarations]: Found specification of procedure skd_sg_io_copy_buffer [2021-11-23 01:56:33,160 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_sg_io_copy_buffer [2021-11-23 01:56:33,160 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-23 01:56:33,160 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-23 01:56:33,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 01:56:33,160 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_write64 [2021-11-23 01:56:33,161 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_write64 [2021-11-23 01:56:33,161 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2021-11-23 01:56:33,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2021-11-23 01:56:33,161 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-11-23 01:56:33,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-11-23 01:56:33,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 01:56:33,161 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-23 01:56:33,162 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-23 01:56:33,162 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-11-23 01:56:33,162 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-23 01:56:33,162 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-23 01:56:33,162 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-23 01:56:33,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-23 01:56:33,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-23 01:56:33,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-23 01:56:33,163 INFO L130 BoogieDeclarations]: Found specification of procedure skd_soft_reset [2021-11-23 01:56:33,163 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_soft_reset [2021-11-23 01:56:33,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 01:56:33,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 01:56:33,163 INFO L130 BoogieDeclarations]: Found specification of procedure skd_start_timer [2021-11-23 01:56:33,163 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_start_timer [2021-11-23 01:56:33,163 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_write32 [2021-11-23 01:56:33,164 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_write32 [2021-11-23 01:56:33,164 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2021-11-23 01:56:33,164 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2021-11-23 01:56:33,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-23 01:56:33,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-23 01:56:33,164 INFO L130 BoogieDeclarations]: Found specification of procedure blk_requeue_request [2021-11-23 01:56:33,164 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_requeue_request [2021-11-23 01:56:33,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-23 01:56:33,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-23 01:56:33,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-23 01:56:33,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-23 01:56:33,165 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-23 01:56:33,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-23 01:56:33,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_devm_free_irq [2021-11-23 01:56:33,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_devm_free_irq [2021-11-23 01:56:33,166 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_read32 [2021-11-23 01:56:33,166 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_read32 [2021-11-23 01:56:33,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-23 01:56:33,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-23 01:56:33,166 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 01:56:33,166 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 01:56:33,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 01:56:33,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-23 01:56:33,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-23 01:56:33,167 INFO L130 BoogieDeclarations]: Found specification of procedure skd_send_internal_skspcl [2021-11-23 01:56:33,167 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_send_internal_skspcl [2021-11-23 01:56:33,167 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_special [2021-11-23 01:56:33,167 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_special [2021-11-23 01:56:33,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 01:56:33,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 01:56:33,168 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2021-11-23 01:56:33,168 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2021-11-23 01:56:33,168 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_state_to_str [2021-11-23 01:56:33,168 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_state_to_str [2021-11-23 01:56:33,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-23 01:56:33,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-23 01:56:33,168 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-23 01:56:33,169 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-23 01:56:33,169 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-23 01:56:33,169 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-23 01:56:33,169 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-11-23 01:56:33,169 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-11-23 01:56:33,169 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-11-23 01:56:33,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-11-23 01:56:33,170 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-23 01:56:33,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-23 01:56:33,170 INFO L130 BoogieDeclarations]: Found specification of procedure skd_name [2021-11-23 01:56:33,170 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_name [2021-11-23 01:56:33,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 01:56:33,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 01:56:33,170 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-23 01:56:33,170 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-23 01:56:33,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-23 01:56:33,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-23 01:56:33,171 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-23 01:56:33,171 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-23 01:56:33,171 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-23 01:56:33,171 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-23 01:56:33,171 INFO L130 BoogieDeclarations]: Found specification of procedure devm_free_irq [2021-11-23 01:56:33,172 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_free_irq [2021-11-23 01:56:33,172 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-23 01:56:33,172 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-23 01:56:33,172 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-23 01:56:33,172 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-23 01:56:33,172 INFO L130 BoogieDeclarations]: Found specification of procedure sg_virt [2021-11-23 01:56:33,172 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_virt [2021-11-23 01:56:33,172 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-23 01:56:33,173 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-23 01:56:33,173 INFO L130 BoogieDeclarations]: Found specification of procedure skd_pci_shutdown [2021-11-23 01:56:33,173 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_pci_shutdown [2021-11-23 01:56:33,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:56:33,173 INFO L130 BoogieDeclarations]: Found specification of procedure skd_stop_device [2021-11-23 01:56:33,173 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_stop_device [2021-11-23 01:56:33,173 INFO L130 BoogieDeclarations]: Found specification of procedure skd_acquire_irq [2021-11-23 01:56:33,174 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_acquire_irq [2021-11-23 01:56:33,174 INFO L130 BoogieDeclarations]: Found specification of procedure skd_log_skdev [2021-11-23 01:56:33,174 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_log_skdev [2021-11-23 01:56:34,595 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:56:34,599 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:56:34,819 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 01:56:35,030 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6358: assume 0 != __copy_to_user_nocheck_~tmp___1~7#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-23 01:56:35,030 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6358: assume !(0 != __copy_to_user_nocheck_~tmp___1~7#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-23 01:56:35,030 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6321: SUMMARY for call __copy_to_user_nocheck_#t~ret279#1 := copy_user_generic(__copy_to_user_nocheck_~dst#1.base, __copy_to_user_nocheck_~dst#1.offset, __copy_to_user_nocheck_~src#1.base, __copy_to_user_nocheck_~src#1.offset, __copy_to_user_nocheck_~size#1); srcloc: null [2021-11-23 01:56:35,030 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6317: assume 16 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-23 01:56:35,030 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6317: assume !(16 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-23 01:56:35,031 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6342: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret277#1 && __copy_to_user_nocheck_#t~ret277#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~11#1 := __copy_to_user_nocheck_#t~ret277#1;havoc __copy_to_user_nocheck_#t~ret277#1; [2021-11-23 01:56:35,031 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6313: assume 10 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-23 01:56:35,031 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6313: assume !(10 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-23 01:56:35,031 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6309: assume 8 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-23 01:56:35,031 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6309: assume !(8 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-23 01:56:35,031 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6305: assume 4 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-23 01:56:35,031 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6305: assume !(4 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-23 01:56:35,032 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6301: assume 2 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-23 01:56:35,032 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6301: assume !(2 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-23 01:56:35,032 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6318: SUMMARY for call __copy_to_user_nocheck_#t~ret278#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~3#1 then 1 else 0), 0); srcloc: null [2021-11-23 01:56:35,032 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6314: SUMMARY for call __copy_to_user_nocheck_#t~ret277#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~3#1 then 1 else 0), 0); srcloc: null [2021-11-23 01:56:35,032 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume 1 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-23 01:56:35,032 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6310: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-23 01:56:35,032 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6306: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-23 01:56:35,033 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !(1 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-23 01:56:35,033 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6302: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-23 01:56:35,033 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6368: __copy_to_user_nocheck_~tmp___2~2#1 := __copy_to_user_nocheck_#t~ret279#1;havoc __copy_to_user_nocheck_#t~ret279#1;__copy_to_user_nocheck_#res#1 := (if __copy_to_user_nocheck_~tmp___2~2#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~2#1 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~2#1 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-23 01:56:35,033 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6298: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-23 01:56:35,033 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6356: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret278#1 && __copy_to_user_nocheck_#t~ret278#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~7#1 := __copy_to_user_nocheck_#t~ret278#1;havoc __copy_to_user_nocheck_#t~ret278#1; [2021-11-23 01:56:35,033 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6344: assume 0 != __copy_to_user_nocheck_~tmp___0~11#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-23 01:56:35,033 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6344: assume !(0 != __copy_to_user_nocheck_~tmp___0~11#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-23 01:56:48,161 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6208: assume 16 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-23 01:56:48,162 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6208: assume !(16 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-23 01:56:48,162 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6204: assume 10 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-23 01:56:48,162 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6204: assume !(10 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-23 01:56:48,162 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6200: assume 8 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-23 01:56:48,162 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6200: assume !(8 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-23 01:56:48,162 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6196: assume 4 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-23 01:56:48,162 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6196: assume !(4 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-23 01:56:48,162 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6192: assume 2 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-23 01:56:48,162 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6192: assume !(2 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-23 01:56:48,162 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6238: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret272#1 && __copy_from_user_nocheck_#t~ret272#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~10#1 := __copy_from_user_nocheck_#t~ret272#1;havoc __copy_from_user_nocheck_#t~ret272#1; [2021-11-23 01:56:48,163 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6209: SUMMARY for call __copy_from_user_nocheck_#t~ret273#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~2#1 then 1 else 0), 0); srcloc: null [2021-11-23 01:56:48,163 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6205: SUMMARY for call __copy_from_user_nocheck_#t~ret272#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~2#1 then 1 else 0), 0); srcloc: null [2021-11-23 01:56:48,163 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6201: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-23 01:56:48,163 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6197: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-23 01:56:48,163 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6255: assume 0 != __copy_from_user_nocheck_~tmp___1~6#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-23 01:56:48,163 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6255: assume !(0 != __copy_from_user_nocheck_~tmp___1~6#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-23 01:56:48,163 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6193: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-23 01:56:48,163 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6189: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-23 01:56:48,163 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume 1 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-23 01:56:48,163 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !(1 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-23 01:56:48,164 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6240: assume 0 != __copy_from_user_nocheck_~tmp___0~10#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-23 01:56:48,164 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6240: assume !(0 != __copy_from_user_nocheck_~tmp___0~10#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-23 01:56:48,164 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6265: __copy_from_user_nocheck_~tmp___2~1#1 := __copy_from_user_nocheck_#t~ret274#1;havoc __copy_from_user_nocheck_#t~ret274#1;__copy_from_user_nocheck_#res#1 := (if __copy_from_user_nocheck_~tmp___2~1#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~1#1 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~1#1 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-23 01:56:48,164 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6253: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret273#1 && __copy_from_user_nocheck_#t~ret273#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~6#1 := __copy_from_user_nocheck_#t~ret273#1;havoc __copy_from_user_nocheck_#t~ret273#1; [2021-11-23 01:56:48,164 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6212: SUMMARY for call __copy_from_user_nocheck_#t~ret274#1 := copy_user_generic(__copy_from_user_nocheck_~dst#1.base, __copy_from_user_nocheck_~dst#1.offset, __copy_from_user_nocheck_~src#1.base, __copy_from_user_nocheck_~src#1.offset, __copy_from_user_nocheck_~size#1); srcloc: null [2021-11-23 01:56:57,088 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:56:59,976 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:56:59,976 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-23 01:56:59,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:56:59 BoogieIcfgContainer [2021-11-23 01:56:59,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:56:59,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 01:56:59,985 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 01:56:59,990 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 01:56:59,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:56:23" (1/3) ... [2021-11-23 01:56:59,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97b1149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:56:59, skipping insertion in model container [2021-11-23 01:56:59,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:31" (2/3) ... [2021-11-23 01:56:59,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97b1149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:56:59, skipping insertion in model container [2021-11-23 01:56:59,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:56:59" (3/3) ... [2021-11-23 01:56:59,995 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--block--skd.ko.cil.i [2021-11-23 01:57:00,002 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 01:57:00,002 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2021-11-23 01:57:00,084 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 01:57:00,094 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 [2021-11-23 01:57:00,095 INFO L340 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2021-11-23 01:57:00,192 INFO L276 IsEmpty]: Start isEmpty. Operand has 2706 states, 1613 states have (on average 1.3316800991940483) internal successors, (2148), 1731 states have internal predecessors, (2148), 899 states have call successors, (899), 161 states have call predecessors, (899), 160 states have return successors, (889), 855 states have call predecessors, (889), 889 states have call successors, (889) [2021-11-23 01:57:00,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 01:57:00,200 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:00,201 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] [2021-11-23 01:57:00,202 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_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-23 01:57:00,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:00,209 INFO L85 PathProgramCache]: Analyzing trace with hash -174472842, now seen corresponding path program 1 times [2021-11-23 01:57:00,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:57:00,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441211915] [2021-11-23 01:57:00,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:00,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:57:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:01,291 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:57:01,307 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:57:01,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441211915] [2021-11-23 01:57:01,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441211915] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:01,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:57:01,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:57:01,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668606176] [2021-11-23 01:57:01,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:01,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:57:01,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:57:01,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:57:01,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:57:01,390 INFO L87 Difference]: Start difference. First operand has 2706 states, 1613 states have (on average 1.3316800991940483) internal successors, (2148), 1731 states have internal predecessors, (2148), 899 states have call successors, (899), 161 states have call predecessors, (899), 160 states have return successors, (889), 855 states have call predecessors, (889), 889 states have call successors, (889) 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) [2021-11-23 01:57:04,896 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 [] [2021-11-23 01:57:10,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:57:12,951 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:57:20,297 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:57:23,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:57:23,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:57:23,665 INFO L93 Difference]: Finished difference Result 7897 states and 11711 transitions. [2021-11-23 01:57:23,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 01:57:23,668 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 [2021-11-23 01:57:23,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:57:23,757 INFO L225 Difference]: With dead ends: 7897 [2021-11-23 01:57:23,758 INFO L226 Difference]: Without dead ends: 5180 [2021-11-23 01:57:23,793 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 [2021-11-23 01:57:23,800 INFO L933 BasicCegarLoop]: 4522 mSDtfsCounter, 3621 mSDsluCounter, 8953 mSDsCounter, 0 mSdLazyCounter, 1660 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3623 SdHoareTripleChecker+Valid, 12401 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1660 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.6s IncrementalHoareTripleChecker+Time [2021-11-23 01:57:23,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3623 Valid, 12401 Invalid, 1663 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1660 Invalid, 2 Unknown, 0 Unchecked, 21.6s Time] [2021-11-23 01:57:23,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5180 states. [2021-11-23 01:57:24,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5180 to 4996. [2021-11-23 01:57:24,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4996 states, 2998 states have (on average 1.3075383589059373) internal successors, (3920), 3188 states have internal predecessors, (3920), 1670 states have call successors, (1670), 296 states have call predecessors, (1670), 294 states have return successors, (1671), 1595 states have call predecessors, (1671), 1668 states have call successors, (1671) [2021-11-23 01:57:24,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4996 states to 4996 states and 7261 transitions. [2021-11-23 01:57:24,501 INFO L78 Accepts]: Start accepts. Automaton has 4996 states and 7261 transitions. Word has length 47 [2021-11-23 01:57:24,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:57:24,504 INFO L470 AbstractCegarLoop]: Abstraction has 4996 states and 7261 transitions. [2021-11-23 01:57:24,504 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) [2021-11-23 01:57:24,504 INFO L276 IsEmpty]: Start isEmpty. Operand 4996 states and 7261 transitions. [2021-11-23 01:57:24,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-23 01:57:24,509 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:24,510 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] [2021-11-23 01:57:24,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 01:57:24,511 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_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-23 01:57:24,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:24,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1122216862, now seen corresponding path program 1 times [2021-11-23 01:57:24,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:57:24,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337435129] [2021-11-23 01:57:24,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:24,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:57:24,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:25,147 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:57:25,147 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:57:25,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337435129] [2021-11-23 01:57:25,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337435129] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:25,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:57:25,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:57:25,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179214705] [2021-11-23 01:57:25,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:25,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:57:25,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:57:25,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:57:25,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:57:25,155 INFO L87 Difference]: Start difference. First operand 4996 states and 7261 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) [2021-11-23 01:57:28,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:57:32,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:57:36,854 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:57:42,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:57:45,100 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:57:46,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:57:46,237 INFO L93 Difference]: Finished difference Result 9831 states and 14297 transitions. [2021-11-23 01:57:46,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 01:57:46,238 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 [2021-11-23 01:57:46,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:57:46,342 INFO L225 Difference]: With dead ends: 9831 [2021-11-23 01:57:46,342 INFO L226 Difference]: Without dead ends: 9829 [2021-11-23 01:57:46,351 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 [2021-11-23 01:57:46,353 INFO L933 BasicCegarLoop]: 4406 mSDtfsCounter, 3625 mSDsluCounter, 8780 mSDsCounter, 0 mSdLazyCounter, 1623 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3627 SdHoareTripleChecker+Valid, 12134 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1623 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.6s IncrementalHoareTripleChecker+Time [2021-11-23 01:57:46,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3627 Valid, 12134 Invalid, 1627 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1623 Invalid, 2 Unknown, 0 Unchecked, 20.6s Time] [2021-11-23 01:57:46,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9829 states. [2021-11-23 01:57:47,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9829 to 9645. [2021-11-23 01:57:47,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9645 states, 5796 states have (on average 1.3088336783988959) internal successors, (7586), 6143 states have internal predecessors, (7586), 3248 states have call successors, (3248), 570 states have call predecessors, (3248), 567 states have return successors, (3267), 3097 states have call predecessors, (3267), 3246 states have call successors, (3267) [2021-11-23 01:57:47,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9645 states to 9645 states and 14101 transitions. [2021-11-23 01:57:47,405 INFO L78 Accepts]: Start accepts. Automaton has 9645 states and 14101 transitions. Word has length 52 [2021-11-23 01:57:47,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:57:47,406 INFO L470 AbstractCegarLoop]: Abstraction has 9645 states and 14101 transitions. [2021-11-23 01:57:47,407 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) [2021-11-23 01:57:47,408 INFO L276 IsEmpty]: Start isEmpty. Operand 9645 states and 14101 transitions. [2021-11-23 01:57:47,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-23 01:57:47,411 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:47,412 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] [2021-11-23 01:57:47,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 01:57:47,412 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_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-23 01:57:47,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:47,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1135563729, now seen corresponding path program 1 times [2021-11-23 01:57:47,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:57:47,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917159548] [2021-11-23 01:57:47,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:47,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:57:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:47,965 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:57:47,965 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:57:47,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917159548] [2021-11-23 01:57:47,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917159548] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:47,966 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:57:47,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:57:47,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92002442] [2021-11-23 01:57:47,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:47,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:57:47,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:57:47,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:57:47,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:57:47,969 INFO L87 Difference]: Start difference. First operand 9645 states and 14101 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) [2021-11-23 01:57:51,526 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 [] [2021-11-23 01:57:55,455 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:57:58,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:58:06,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:58:06,115 INFO L93 Difference]: Finished difference Result 14506 states and 21173 transitions. [2021-11-23 01:58:06,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 01:58:06,116 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 [2021-11-23 01:58:06,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:58:06,263 INFO L225 Difference]: With dead ends: 14506 [2021-11-23 01:58:06,263 INFO L226 Difference]: Without dead ends: 14504 [2021-11-23 01:58:06,277 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 [2021-11-23 01:58:06,279 INFO L933 BasicCegarLoop]: 4487 mSDtfsCounter, 3626 mSDsluCounter, 8879 mSDsCounter, 0 mSdLazyCounter, 1650 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3628 SdHoareTripleChecker+Valid, 12295 SdHoareTripleChecker+Invalid, 1653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1650 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2021-11-23 01:58:06,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3628 Valid, 12295 Invalid, 1653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1650 Invalid, 1 Unknown, 0 Unchecked, 17.7s Time] [2021-11-23 01:58:06,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14504 states. [2021-11-23 01:58:07,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14504 to 14336. [2021-11-23 01:58:07,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14336 states, 8620 states have (on average 1.3090487238979118) internal successors, (11284), 9120 states have internal predecessors, (11284), 4838 states have call successors, (4838), 847 states have call predecessors, (4838), 844 states have return successors, (4877), 4616 states have call predecessors, (4877), 4836 states have call successors, (4877) [2021-11-23 01:58:07,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14336 states to 14336 states and 20999 transitions. [2021-11-23 01:58:07,833 INFO L78 Accepts]: Start accepts. Automaton has 14336 states and 20999 transitions. Word has length 57 [2021-11-23 01:58:07,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:58:07,834 INFO L470 AbstractCegarLoop]: Abstraction has 14336 states and 20999 transitions. [2021-11-23 01:58:07,834 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) [2021-11-23 01:58:07,834 INFO L276 IsEmpty]: Start isEmpty. Operand 14336 states and 20999 transitions. [2021-11-23 01:58:07,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-23 01:58:07,838 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:07,838 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] [2021-11-23 01:58:07,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 01:58:07,839 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_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-23 01:58:07,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:07,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1647116332, now seen corresponding path program 1 times [2021-11-23 01:58:07,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:07,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206371279] [2021-11-23 01:58:07,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:07,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:08,338 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:58:08,339 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:08,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206371279] [2021-11-23 01:58:08,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206371279] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:58:08,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:58:08,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:58:08,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080951305] [2021-11-23 01:58:08,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:58:08,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:58:08,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:58:08,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:58:08,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:58:08,342 INFO L87 Difference]: Start difference. First operand 14336 states and 20999 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) [2021-11-23 01:58:11,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:58:15,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:58:18,245 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:58:25,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:58:25,513 INFO L93 Difference]: Finished difference Result 22301 states and 32617 transitions. [2021-11-23 01:58:25,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 01:58:25,514 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 [2021-11-23 01:58:25,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:58:25,872 INFO L225 Difference]: With dead ends: 22301 [2021-11-23 01:58:25,872 INFO L226 Difference]: Without dead ends: 22299 [2021-11-23 01:58:25,883 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 [2021-11-23 01:58:25,889 INFO L933 BasicCegarLoop]: 4478 mSDtfsCounter, 3593 mSDsluCounter, 8872 mSDsCounter, 0 mSdLazyCounter, 1644 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3595 SdHoareTripleChecker+Valid, 12279 SdHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1644 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2021-11-23 01:58:25,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3595 Valid, 12279 Invalid, 1647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1644 Invalid, 2 Unknown, 0 Unchecked, 16.6s Time] [2021-11-23 01:58:25,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22299 states. [2021-11-23 01:58:27,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22299 to 22139. [2021-11-23 01:58:27,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22139 states, 13331 states have (on average 1.3113044782836996) internal successors, (17481), 14110 states have internal predecessors, (17481), 7464 states have call successors, (7464), 1313 states have call predecessors, (7464), 1310 states have return successors, (7509), 7099 states have call predecessors, (7509), 7462 states have call successors, (7509) [2021-11-23 01:58:28,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22139 states to 22139 states and 32454 transitions. [2021-11-23 01:58:28,062 INFO L78 Accepts]: Start accepts. Automaton has 22139 states and 32454 transitions. Word has length 62 [2021-11-23 01:58:28,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:58:28,063 INFO L470 AbstractCegarLoop]: Abstraction has 22139 states and 32454 transitions. [2021-11-23 01:58:28,063 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) [2021-11-23 01:58:28,064 INFO L276 IsEmpty]: Start isEmpty. Operand 22139 states and 32454 transitions. [2021-11-23 01:58:28,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-23 01:58:28,073 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:28,073 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] [2021-11-23 01:58:28,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 01:58:28,074 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_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-23 01:58:28,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:28,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1156407448, now seen corresponding path program 1 times [2021-11-23 01:58:28,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:28,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168799890] [2021-11-23 01:58:28,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:28,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:28,672 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:58:28,672 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:28,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168799890] [2021-11-23 01:58:28,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168799890] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:58:28,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:58:28,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:58:28,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532048466] [2021-11-23 01:58:28,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:58:28,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:58:28,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:58:28,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:58:28,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:58:28,675 INFO L87 Difference]: Start difference. First operand 22139 states and 32454 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) [2021-11-23 01:58:32,096 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 [] [2021-11-23 01:58:36,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:58:39,039 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:58:45,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:58:48,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:58:49,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:58:49,722 INFO L93 Difference]: Finished difference Result 26003 states and 37982 transitions. [2021-11-23 01:58:49,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 01:58:49,723 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 [2021-11-23 01:58:49,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:58:49,863 INFO L225 Difference]: With dead ends: 26003 [2021-11-23 01:58:49,864 INFO L226 Difference]: Without dead ends: 26001 [2021-11-23 01:58:49,879 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 [2021-11-23 01:58:49,880 INFO L933 BasicCegarLoop]: 4488 mSDtfsCounter, 3610 mSDsluCounter, 8883 mSDsCounter, 0 mSdLazyCounter, 1645 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3614 SdHoareTripleChecker+Valid, 12299 SdHoareTripleChecker+Invalid, 1649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1645 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2021-11-23 01:58:49,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3614 Valid, 12299 Invalid, 1649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1645 Invalid, 3 Unknown, 0 Unchecked, 20.3s Time] [2021-11-23 01:58:49,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26001 states. [2021-11-23 01:58:52,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26001 to 25839. [2021-11-23 01:58:52,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25839 states, 15584 states have (on average 1.3121149897330595) internal successors, (20448), 16495 states have internal predecessors, (20448), 8658 states have call successors, (8658), 1566 states have call predecessors, (8658), 1563 states have return successors, (8707), 8221 states have call predecessors, (8707), 8656 states have call successors, (8707) [2021-11-23 01:58:52,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25839 states to 25839 states and 37813 transitions. [2021-11-23 01:58:52,510 INFO L78 Accepts]: Start accepts. Automaton has 25839 states and 37813 transitions. Word has length 67 [2021-11-23 01:58:52,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:58:52,513 INFO L470 AbstractCegarLoop]: Abstraction has 25839 states and 37813 transitions. [2021-11-23 01:58:52,513 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) [2021-11-23 01:58:52,514 INFO L276 IsEmpty]: Start isEmpty. Operand 25839 states and 37813 transitions. [2021-11-23 01:58:52,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-23 01:58:52,516 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:52,516 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] [2021-11-23 01:58:52,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 01:58:52,517 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_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-23 01:58:52,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:52,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1453438679, now seen corresponding path program 1 times [2021-11-23 01:58:52,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:52,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974384687] [2021-11-23 01:58:52,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:52,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:53,207 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:58:53,207 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:53,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974384687] [2021-11-23 01:58:53,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974384687] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:58:53,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:58:53,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:58:53,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202389308] [2021-11-23 01:58:53,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:58:53,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:58:53,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:58:53,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:58:53,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:58:53,211 INFO L87 Difference]: Start difference. First operand 25839 states and 37813 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) [2021-11-23 01:58:56,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:59:01,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:59:11,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:59:11,859 INFO L93 Difference]: Finished difference Result 26171 states and 38200 transitions. [2021-11-23 01:59:11,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 01:59:11,860 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 [2021-11-23 01:59:11,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:59:11,987 INFO L225 Difference]: With dead ends: 26171 [2021-11-23 01:59:11,987 INFO L226 Difference]: Without dead ends: 26169 [2021-11-23 01:59:12,003 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 [2021-11-23 01:59:12,004 INFO L933 BasicCegarLoop]: 4485 mSDtfsCounter, 3615 mSDsluCounter, 8881 mSDsCounter, 0 mSdLazyCounter, 1646 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3617 SdHoareTripleChecker+Valid, 12293 SdHoareTripleChecker+Invalid, 1649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1646 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2021-11-23 01:59:12,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3617 Valid, 12293 Invalid, 1649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1646 Invalid, 2 Unknown, 0 Unchecked, 17.8s Time] [2021-11-23 01:59:12,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26169 states. [2021-11-23 01:59:13,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26169 to 26023. [2021-11-23 01:59:13,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26023 states, 15695 states have (on average 1.3116916215355208) internal successors, (20587), 16610 states have internal predecessors, (20587), 8710 states have call successors, (8710), 1587 states have call predecessors, (8710), 1584 states have return successors, (8755), 8271 states have call predecessors, (8755), 8708 states have call successors, (8755) [2021-11-23 01:59:14,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26023 states to 26023 states and 38052 transitions. [2021-11-23 01:59:14,040 INFO L78 Accepts]: Start accepts. Automaton has 26023 states and 38052 transitions. Word has length 72 [2021-11-23 01:59:14,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:59:14,041 INFO L470 AbstractCegarLoop]: Abstraction has 26023 states and 38052 transitions. [2021-11-23 01:59:14,041 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) [2021-11-23 01:59:14,041 INFO L276 IsEmpty]: Start isEmpty. Operand 26023 states and 38052 transitions. [2021-11-23 01:59:14,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-23 01:59:14,046 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:59:14,046 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] [2021-11-23 01:59:14,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 01:59:14,046 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-23 01:59:14,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:59:14,047 INFO L85 PathProgramCache]: Analyzing trace with hash -2009721783, now seen corresponding path program 1 times [2021-11-23 01:59:14,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:59:14,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514778543] [2021-11-23 01:59:14,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:59:14,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:59:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:59:14,499 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:59:14,500 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:59:14,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514778543] [2021-11-23 01:59:14,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514778543] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:59:14,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:59:14,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:59:14,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060120794] [2021-11-23 01:59:14,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:59:14,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:59:14,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:59:14,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:59:14,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:59:14,503 INFO L87 Difference]: Start difference. First operand 26023 states and 38052 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) [2021-11-23 01:59:18,130 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:59:25,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:59:35,578 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 [] [2021-11-23 01:59:35,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:59:35,926 INFO L93 Difference]: Finished difference Result 26165 states and 38192 transitions. [2021-11-23 01:59:35,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 01:59:35,927 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 [2021-11-23 01:59:35,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:59:36,021 INFO L225 Difference]: With dead ends: 26165 [2021-11-23 01:59:36,022 INFO L226 Difference]: Without dead ends: 26163 [2021-11-23 01:59:36,035 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 [2021-11-23 01:59:36,036 INFO L933 BasicCegarLoop]: 4485 mSDtfsCounter, 3612 mSDsluCounter, 8881 mSDsCounter, 0 mSdLazyCounter, 1645 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3614 SdHoareTripleChecker+Valid, 12293 SdHoareTripleChecker+Invalid, 1649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1645 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2021-11-23 01:59:36,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3614 Valid, 12293 Invalid, 1649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1645 Invalid, 3 Unknown, 0 Unchecked, 20.8s Time] [2021-11-23 01:59:36,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26163 states. [2021-11-23 01:59:37,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26163 to 26029. [2021-11-23 01:59:37,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26029 states, 15698 states have (on average 1.3116320550388585) internal successors, (20590), 16613 states have internal predecessors, (20590), 8712 states have call successors, (8712), 1588 states have call predecessors, (8712), 1585 states have return successors, (8757), 8273 states have call predecessors, (8757), 8710 states have call successors, (8757) [2021-11-23 01:59:37,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26029 states to 26029 states and 38059 transitions. [2021-11-23 01:59:37,885 INFO L78 Accepts]: Start accepts. Automaton has 26029 states and 38059 transitions. Word has length 77 [2021-11-23 01:59:37,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:59:37,886 INFO L470 AbstractCegarLoop]: Abstraction has 26029 states and 38059 transitions. [2021-11-23 01:59:37,887 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) [2021-11-23 01:59:37,887 INFO L276 IsEmpty]: Start isEmpty. Operand 26029 states and 38059 transitions. [2021-11-23 01:59:37,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-23 01:59:37,890 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:59:37,890 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, 1, 1, 1] [2021-11-23 01:59:37,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 01:59:37,891 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-23 01:59:37,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:59:37,892 INFO L85 PathProgramCache]: Analyzing trace with hash 2132775813, now seen corresponding path program 1 times [2021-11-23 01:59:37,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:59:37,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116541072] [2021-11-23 01:59:37,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:59:37,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:59:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:59:38,669 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-23 01:59:38,669 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:59:38,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116541072] [2021-11-23 01:59:38,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116541072] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:59:38,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:59:38,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 01:59:38,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187063241] [2021-11-23 01:59:38,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:59:38,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:59:38,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:59:38,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:59:38,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:59:38,672 INFO L87 Difference]: Start difference. First operand 26029 states and 38059 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 01:59:41,851 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 [] [2021-11-23 01:59:48,326 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:59:50,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:59:50,533 INFO L93 Difference]: Finished difference Result 55002 states and 80072 transitions. [2021-11-23 01:59:50,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:59:50,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 93 [2021-11-23 01:59:50,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:59:50,648 INFO L225 Difference]: With dead ends: 55002 [2021-11-23 01:59:50,648 INFO L226 Difference]: Without dead ends: 28991 [2021-11-23 01:59:50,769 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 [2021-11-23 01:59:50,770 INFO L933 BasicCegarLoop]: 3879 mSDtfsCounter, 3630 mSDsluCounter, 1225 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3630 SdHoareTripleChecker+Valid, 4921 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2021-11-23 01:59:50,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3630 Valid, 4921 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 755 Invalid, 1 Unknown, 0 Unchecked, 10.8s Time] [2021-11-23 01:59:50,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28991 states. [2021-11-23 01:59:52,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28991 to 28965. [2021-11-23 01:59:52,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28965 states, 17419 states have (on average 1.3042654572593146) internal successors, (22719), 18376 states have internal predecessors, (22719), 9620 states have call successors, (9620), 1895 states have call predecessors, (9620), 1892 states have return successors, (9673), 9171 states have call predecessors, (9673), 9618 states have call successors, (9673) [2021-11-23 01:59:52,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28965 states to 28965 states and 42012 transitions. [2021-11-23 01:59:52,424 INFO L78 Accepts]: Start accepts. Automaton has 28965 states and 42012 transitions. Word has length 93 [2021-11-23 01:59:52,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:59:52,425 INFO L470 AbstractCegarLoop]: Abstraction has 28965 states and 42012 transitions. [2021-11-23 01:59:52,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 01:59:52,425 INFO L276 IsEmpty]: Start isEmpty. Operand 28965 states and 42012 transitions. [2021-11-23 01:59:52,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-23 01:59:52,427 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:59:52,427 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] [2021-11-23 01:59:52,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 01:59:52,427 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_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-23 01:59:52,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:59:52,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1203807764, now seen corresponding path program 1 times [2021-11-23 01:59:52,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:59:52,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973884145] [2021-11-23 01:59:52,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:59:52,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:59:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:59:53,029 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:59:53,029 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:59:53,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973884145] [2021-11-23 01:59:53,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973884145] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:59:53,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:59:53,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:59:53,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743995925] [2021-11-23 01:59:53,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:59:53,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:59:53,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:59:53,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:59:53,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:59:53,033 INFO L87 Difference]: Start difference. First operand 28965 states and 42012 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) [2021-11-23 01:59:56,184 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 [] [2021-11-23 02:00:00,064 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:00:03,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:00:05,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:00:12,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:00:12,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:00:12,976 INFO L93 Difference]: Finished difference Result 29114 states and 42160 transitions. [2021-11-23 02:00:12,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:00:12,985 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 [2021-11-23 02:00:12,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:00:13,123 INFO L225 Difference]: With dead ends: 29114 [2021-11-23 02:00:13,124 INFO L226 Difference]: Without dead ends: 29112 [2021-11-23 02:00:13,136 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 [2021-11-23 02:00:13,137 INFO L933 BasicCegarLoop]: 4569 mSDtfsCounter, 3584 mSDsluCounter, 8969 mSDsCounter, 0 mSdLazyCounter, 1663 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3586 SdHoareTripleChecker+Valid, 12457 SdHoareTripleChecker+Invalid, 1667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1663 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:00:13,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3586 Valid, 12457 Invalid, 1667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1663 Invalid, 3 Unknown, 0 Unchecked, 19.1s Time] [2021-11-23 02:00:13,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29112 states. [2021-11-23 02:00:14,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29112 to 28988. [2021-11-23 02:00:14,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28988 states, 17433 states have (on average 1.3040784718637068) internal successors, (22734), 18390 states have internal predecessors, (22734), 9625 states have call successors, (9625), 1899 states have call predecessors, (9625), 1896 states have return successors, (9678), 9176 states have call predecessors, (9678), 9623 states have call successors, (9678) [2021-11-23 02:00:14,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28988 states to 28988 states and 42037 transitions. [2021-11-23 02:00:14,870 INFO L78 Accepts]: Start accepts. Automaton has 28988 states and 42037 transitions. Word has length 82 [2021-11-23 02:00:14,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:00:14,871 INFO L470 AbstractCegarLoop]: Abstraction has 28988 states and 42037 transitions. [2021-11-23 02:00:14,871 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) [2021-11-23 02:00:14,872 INFO L276 IsEmpty]: Start isEmpty. Operand 28988 states and 42037 transitions. [2021-11-23 02:00:14,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-23 02:00:14,873 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:00:14,874 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] [2021-11-23 02:00:14,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 02:00:14,874 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-23 02:00:14,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:00:14,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1513208983, now seen corresponding path program 1 times [2021-11-23 02:00:14,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:00:14,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24050270] [2021-11-23 02:00:14,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:00:14,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:00:15,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:00:15,190 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:00:15,190 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:00:15,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24050270] [2021-11-23 02:00:15,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24050270] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:00:15,191 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:00:15,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:00:15,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622771301] [2021-11-23 02:00:15,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:00:15,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:00:15,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:00:15,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:00:15,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:00:15,193 INFO L87 Difference]: Start difference. First operand 28988 states and 42037 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) [2021-11-23 02:00:18,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:00:23,185 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:00:24,948 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:00:26,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:00:28,009 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:00:34,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:00:34,329 INFO L93 Difference]: Finished difference Result 29112 states and 42158 transitions. [2021-11-23 02:00:34,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:00:34,330 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 [2021-11-23 02:00:34,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:00:34,416 INFO L225 Difference]: With dead ends: 29112 [2021-11-23 02:00:34,416 INFO L226 Difference]: Without dead ends: 29110 [2021-11-23 02:00:34,427 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 [2021-11-23 02:00:34,427 INFO L933 BasicCegarLoop]: 4569 mSDtfsCounter, 3572 mSDsluCounter, 8973 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3574 SdHoareTripleChecker+Valid, 12461 SdHoareTripleChecker+Invalid, 1667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:00:34,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3574 Valid, 12461 Invalid, 1667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1664 Invalid, 2 Unknown, 0 Unchecked, 18.3s Time] [2021-11-23 02:00:34,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29110 states. [2021-11-23 02:00:35,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29110 to 28988. [2021-11-23 02:00:35,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28988 states, 17433 states have (on average 1.304021109390237) internal successors, (22733), 18390 states have internal predecessors, (22733), 9625 states have call successors, (9625), 1899 states have call predecessors, (9625), 1896 states have return successors, (9678), 9176 states have call predecessors, (9678), 9623 states have call successors, (9678) [2021-11-23 02:00:36,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28988 states to 28988 states and 42036 transitions. [2021-11-23 02:00:36,083 INFO L78 Accepts]: Start accepts. Automaton has 28988 states and 42036 transitions. Word has length 84 [2021-11-23 02:00:36,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:00:36,084 INFO L470 AbstractCegarLoop]: Abstraction has 28988 states and 42036 transitions. [2021-11-23 02:00:36,084 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) [2021-11-23 02:00:36,084 INFO L276 IsEmpty]: Start isEmpty. Operand 28988 states and 42036 transitions. [2021-11-23 02:00:36,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-23 02:00:36,086 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:00:36,086 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] [2021-11-23 02:00:36,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 02:00:36,087 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-23 02:00:36,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:00:36,087 INFO L85 PathProgramCache]: Analyzing trace with hash -269451231, now seen corresponding path program 1 times [2021-11-23 02:00:36,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:00:36,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266523210] [2021-11-23 02:00:36,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:00:36,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:00:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:00:36,443 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-11-23 02:00:36,443 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:00:36,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266523210] [2021-11-23 02:00:36,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266523210] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:00:36,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225998957] [2021-11-23 02:00:36,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:00:36,444 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:00:36,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:00:36,446 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:00:36,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:00:38,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:00:38,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 7455 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 02:00:38,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:00:38,455 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-23 02:00:38,455 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:00:38,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225998957] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:00:38,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:00:38,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-11-23 02:00:38,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872105183] [2021-11-23 02:00:38,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:00:38,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:00:38,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:00:38,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:00:38,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:00:38,457 INFO L87 Difference]: Start difference. First operand 28988 states and 42036 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-23 02:00:41,137 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 [] [2021-11-23 02:00:46,173 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 [] [2021-11-23 02:00:49,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:00:49,381 INFO L93 Difference]: Finished difference Result 57996 states and 84077 transitions. [2021-11-23 02:00:49,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:00:49,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 98 [2021-11-23 02:00:49,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:00:49,515 INFO L225 Difference]: With dead ends: 57996 [2021-11-23 02:00:49,515 INFO L226 Difference]: Without dead ends: 29026 [2021-11-23 02:00:49,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:00:49,604 INFO L933 BasicCegarLoop]: 3880 mSDtfsCounter, 3617 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3617 SdHoareTripleChecker+Valid, 4931 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:00:49,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3617 Valid, 4931 Invalid, 758 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 755 Invalid, 2 Unknown, 0 Unchecked, 9.6s Time] [2021-11-23 02:00:49,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29026 states. [2021-11-23 02:00:51,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29026 to 29000. [2021-11-23 02:00:51,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29000 states, 17437 states have (on average 1.3034925732637495) internal successors, (22729), 18394 states have internal predecessors, (22729), 9629 states have call successors, (9629), 1903 states have call predecessors, (9629), 1900 states have return successors, (9682), 9180 states have call predecessors, (9682), 9627 states have call successors, (9682) [2021-11-23 02:00:51,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29000 states to 29000 states and 42040 transitions. [2021-11-23 02:00:51,459 INFO L78 Accepts]: Start accepts. Automaton has 29000 states and 42040 transitions. Word has length 98 [2021-11-23 02:00:51,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:00:51,460 INFO L470 AbstractCegarLoop]: Abstraction has 29000 states and 42040 transitions. [2021-11-23 02:00:51,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-23 02:00:51,460 INFO L276 IsEmpty]: Start isEmpty. Operand 29000 states and 42040 transitions. [2021-11-23 02:00:51,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-23 02:00:51,462 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:00:51,462 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] [2021-11-23 02:00:51,501 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-23 02:00:51,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1178789-388e-4225-a407-45bea4d59eaa/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-23 02:00:51,679 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_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-23 02:00:51,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:00:51,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1820455625, now seen corresponding path program 1 times [2021-11-23 02:00:51,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:00:51,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593933098] [2021-11-23 02:00:51,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:00:51,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:00:51,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:00:52,019 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:00:52,019 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:00:52,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593933098] [2021-11-23 02:00:52,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593933098] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:00:52,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:00:52,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:00:52,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442238420] [2021-11-23 02:00:52,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:00:52,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:00:52,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:00:52,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:00:52,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:00:52,022 INFO L87 Difference]: Start difference. First operand 29000 states and 42040 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) [2021-11-23 02:00:55,073 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 [] [2021-11-23 02:00:58,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:03,055 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:10,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:01:10,002 INFO L93 Difference]: Finished difference Result 29120 states and 42159 transitions. [2021-11-23 02:01:10,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:01:10,011 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 [2021-11-23 02:01:10,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:01:10,156 INFO L225 Difference]: With dead ends: 29120 [2021-11-23 02:01:10,156 INFO L226 Difference]: Without dead ends: 29118 [2021-11-23 02:01:10,172 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 [2021-11-23 02:01:10,173 INFO L933 BasicCegarLoop]: 4569 mSDtfsCounter, 3566 mSDsluCounter, 8973 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3568 SdHoareTripleChecker+Valid, 12461 SdHoareTripleChecker+Invalid, 1667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:01:10,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3568 Valid, 12461 Invalid, 1667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1664 Invalid, 2 Unknown, 0 Unchecked, 16.9s Time] [2021-11-23 02:01:10,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29118 states. [2021-11-23 02:01:11,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29118 to 29006. [2021-11-23 02:01:11,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29006 states, 17440 states have (on average 1.303440366972477) internal successors, (22732), 18397 states have internal predecessors, (22732), 9631 states have call successors, (9631), 1904 states have call predecessors, (9631), 1901 states have return successors, (9684), 9182 states have call predecessors, (9684), 9629 states have call successors, (9684) [2021-11-23 02:01:12,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29006 states to 29006 states and 42047 transitions. [2021-11-23 02:01:12,120 INFO L78 Accepts]: Start accepts. Automaton has 29006 states and 42047 transitions. Word has length 89 [2021-11-23 02:01:12,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:01:12,121 INFO L470 AbstractCegarLoop]: Abstraction has 29006 states and 42047 transitions. [2021-11-23 02:01:12,121 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) [2021-11-23 02:01:12,121 INFO L276 IsEmpty]: Start isEmpty. Operand 29006 states and 42047 transitions. [2021-11-23 02:01:12,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-23 02:01:12,123 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:01:12,124 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 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] [2021-11-23 02:01:12,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 02:01:12,124 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-23 02:01:12,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:01:12,125 INFO L85 PathProgramCache]: Analyzing trace with hash 309865313, now seen corresponding path program 1 times [2021-11-23 02:01:12,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:01:12,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596278774] [2021-11-23 02:01:12,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:12,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:01:12,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:01:12,522 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2021-11-23 02:01:12,523 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:01:12,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596278774] [2021-11-23 02:01:12,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596278774] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:01:12,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:01:12,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:01:12,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620906334] [2021-11-23 02:01:12,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:01:12,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:01:12,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:01:12,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:01:12,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:01:12,526 INFO L87 Difference]: Start difference. First operand 29006 states and 42047 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-23 02:01:17,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:20,093 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:22,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:23,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:27,009 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:37,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:01:37,992 INFO L93 Difference]: Finished difference Result 35702 states and 51057 transitions. [2021-11-23 02:01:37,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:01:37,992 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 98 [2021-11-23 02:01:37,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:01:38,112 INFO L225 Difference]: With dead ends: 35702 [2021-11-23 02:01:38,112 INFO L226 Difference]: Without dead ends: 35700 [2021-11-23 02:01:38,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:01:38,129 INFO L933 BasicCegarLoop]: 3961 mSDtfsCounter, 2004 mSDsluCounter, 12440 mSDsCounter, 0 mSdLazyCounter, 2118 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2005 SdHoareTripleChecker+Valid, 14847 SdHoareTripleChecker+Invalid, 2122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2118 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:01:38,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2005 Valid, 14847 Invalid, 2122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2118 Invalid, 2 Unknown, 0 Unchecked, 24.3s Time] [2021-11-23 02:01:38,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35700 states. [2021-11-23 02:01:39,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35700 to 35460. [2021-11-23 02:01:39,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35460 states, 21318 states have (on average 1.2957594521062012) internal successors, (27623), 22463 states have internal predecessors, (27623), 11530 states have call successors, (11530), 2609 states have call predecessors, (11530), 2578 states have return successors, (11626), 10936 states have call predecessors, (11626), 11528 states have call successors, (11626) [2021-11-23 02:01:40,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35460 states to 35460 states and 50779 transitions. [2021-11-23 02:01:40,072 INFO L78 Accepts]: Start accepts. Automaton has 35460 states and 50779 transitions. Word has length 98 [2021-11-23 02:01:40,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:01:40,073 INFO L470 AbstractCegarLoop]: Abstraction has 35460 states and 50779 transitions. [2021-11-23 02:01:40,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-23 02:01:40,073 INFO L276 IsEmpty]: Start isEmpty. Operand 35460 states and 50779 transitions. [2021-11-23 02:01:40,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-23 02:01:40,075 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:01:40,076 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] [2021-11-23 02:01:40,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-23 02:01:40,076 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-23 02:01:40,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:01:40,077 INFO L85 PathProgramCache]: Analyzing trace with hash 197801777, now seen corresponding path program 1 times [2021-11-23 02:01:40,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:01:40,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745722319] [2021-11-23 02:01:40,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:40,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:01:40,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:01:40,368 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:01:40,368 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:01:40,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745722319] [2021-11-23 02:01:40,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745722319] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:01:40,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:01:40,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:01:40,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985320525] [2021-11-23 02:01:40,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:01:40,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:01:40,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:01:40,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:01:40,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:01:40,371 INFO L87 Difference]: Start difference. First operand 35460 states and 50779 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) [2021-11-23 02:01:44,212 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 [] [2021-11-23 02:01:51,609 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:56,358 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:02:00,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:02:00,966 INFO L93 Difference]: Finished difference Result 35586 states and 50903 transitions. [2021-11-23 02:02:00,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:02:00,967 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 [2021-11-23 02:02:00,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:02:01,134 INFO L225 Difference]: With dead ends: 35586 [2021-11-23 02:02:01,134 INFO L226 Difference]: Without dead ends: 35584 [2021-11-23 02:02:01,150 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 [2021-11-23 02:02:01,151 INFO L933 BasicCegarLoop]: 4619 mSDtfsCounter, 3595 mSDsluCounter, 9034 mSDsCounter, 0 mSdLazyCounter, 1685 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3597 SdHoareTripleChecker+Valid, 12561 SdHoareTripleChecker+Invalid, 1687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1685 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:02:01,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3597 Valid, 12561 Invalid, 1687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1685 Invalid, 1 Unknown, 0 Unchecked, 19.4s Time] [2021-11-23 02:02:01,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35584 states. [2021-11-23 02:02:03,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35584 to 35478. [2021-11-23 02:02:03,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35478 states, 21329 states have (on average 1.295747573725913) internal successors, (27637), 22474 states have internal predecessors, (27637), 11534 states have call successors, (11534), 2612 states have call predecessors, (11534), 2581 states have return successors, (11630), 10940 states have call predecessors, (11630), 11532 states have call successors, (11630) [2021-11-23 02:02:03,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35478 states to 35478 states and 50801 transitions. [2021-11-23 02:02:03,267 INFO L78 Accepts]: Start accepts. Automaton has 35478 states and 50801 transitions. Word has length 94 [2021-11-23 02:02:03,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:02:03,268 INFO L470 AbstractCegarLoop]: Abstraction has 35478 states and 50801 transitions. [2021-11-23 02:02:03,268 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) [2021-11-23 02:02:03,268 INFO L276 IsEmpty]: Start isEmpty. Operand 35478 states and 50801 transitions. [2021-11-23 02:02:03,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-23 02:02:03,270 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:02:03,271 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] [2021-11-23 02:02:03,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-23 02:02:03,271 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-23 02:02:03,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:02:03,272 INFO L85 PathProgramCache]: Analyzing trace with hash 464173663, now seen corresponding path program 1 times [2021-11-23 02:02:03,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:02:03,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135730591] [2021-11-23 02:02:03,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:02:03,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:02:03,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:02:03,609 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:02:03,609 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:02:03,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135730591] [2021-11-23 02:02:03,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135730591] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:02:03,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:02:03,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:02:03,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383104176] [2021-11-23 02:02:03,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:02:03,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:02:03,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:02:03,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:02:03,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:02:03,615 INFO L87 Difference]: Start difference. First operand 35478 states and 50801 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) [2021-11-23 02:02:07,090 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:02:11,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:02:22,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:02:23,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:02:25,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:02:29,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:02:30,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:02:30,359 INFO L93 Difference]: Finished difference Result 35584 states and 50901 transitions. [2021-11-23 02:02:30,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:02:30,360 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 [2021-11-23 02:02:30,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:02:30,484 INFO L225 Difference]: With dead ends: 35584 [2021-11-23 02:02:30,484 INFO L226 Difference]: Without dead ends: 35582 [2021-11-23 02:02:30,501 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 [2021-11-23 02:02:30,502 INFO L933 BasicCegarLoop]: 4619 mSDtfsCounter, 3592 mSDsluCounter, 9036 mSDsCounter, 0 mSdLazyCounter, 1683 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3594 SdHoareTripleChecker+Valid, 12561 SdHoareTripleChecker+Invalid, 1689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1683 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:02:30,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3594 Valid, 12561 Invalid, 1689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1683 Invalid, 5 Unknown, 0 Unchecked, 25.4s Time] [2021-11-23 02:02:30,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35582 states. [2021-11-23 02:02:32,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35582 to 35484. [2021-11-23 02:02:32,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35484 states, 21332 states have (on average 1.2957059816238514) internal successors, (27640), 22477 states have internal predecessors, (27640), 11536 states have call successors, (11536), 2613 states have call predecessors, (11536), 2582 states have return successors, (11632), 10942 states have call predecessors, (11632), 11534 states have call successors, (11632) [2021-11-23 02:02:32,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35484 states to 35484 states and 50808 transitions. [2021-11-23 02:02:32,535 INFO L78 Accepts]: Start accepts. Automaton has 35484 states and 50808 transitions. Word has length 99 [2021-11-23 02:02:32,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:02:32,536 INFO L470 AbstractCegarLoop]: Abstraction has 35484 states and 50808 transitions. [2021-11-23 02:02:32,536 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) [2021-11-23 02:02:32,536 INFO L276 IsEmpty]: Start isEmpty. Operand 35484 states and 50808 transitions. [2021-11-23 02:02:32,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-23 02:02:32,539 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:02:32,539 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:02:32,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-23 02:02:32,540 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-23 02:02:32,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:02:32,540 INFO L85 PathProgramCache]: Analyzing trace with hash 137168764, now seen corresponding path program 1 times [2021-11-23 02:02:32,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:02:32,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099706158] [2021-11-23 02:02:32,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:02:32,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:02:32,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:02:32,990 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-23 02:02:32,990 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:02:32,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099706158] [2021-11-23 02:02:32,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099706158] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:02:32,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:02:32,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:02:32,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346021283] [2021-11-23 02:02:32,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:02:32,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:02:32,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:02:32,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:02:32,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:02:32,993 INFO L87 Difference]: Start difference. First operand 35484 states and 50808 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-23 02:02:36,315 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:02:39,897 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:02:42,349 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 [] [2021-11-23 02:02:50,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:02:50,558 INFO L93 Difference]: Finished difference Result 80822 states and 115770 transitions. [2021-11-23 02:02:50,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:02:50,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 116 [2021-11-23 02:02:50,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:02:50,869 INFO L225 Difference]: With dead ends: 80822 [2021-11-23 02:02:50,869 INFO L226 Difference]: Without dead ends: 45356 [2021-11-23 02:02:50,965 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 [2021-11-23 02:02:50,965 INFO L933 BasicCegarLoop]: 4731 mSDtfsCounter, 3415 mSDsluCounter, 3823 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3416 SdHoareTripleChecker+Valid, 8054 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:02:50,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3416 Valid, 8054 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1116 Invalid, 3 Unknown, 0 Unchecked, 15.2s Time] [2021-11-23 02:02:51,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45356 states. [2021-11-23 02:02:53,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45356 to 45156. [2021-11-23 02:02:53,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45156 states, 27130 states have (on average 1.296645779579801) internal successors, (35178), 28589 states have internal predecessors, (35178), 14738 states have call successors, (14738), 3287 states have call predecessors, (14738), 3254 states have return successors, (14854), 13988 states have call predecessors, (14854), 14736 states have call successors, (14854) [2021-11-23 02:02:54,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45156 states to 45156 states and 64770 transitions. [2021-11-23 02:02:54,241 INFO L78 Accepts]: Start accepts. Automaton has 45156 states and 64770 transitions. Word has length 116 [2021-11-23 02:02:54,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:02:54,242 INFO L470 AbstractCegarLoop]: Abstraction has 45156 states and 64770 transitions. [2021-11-23 02:02:54,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-23 02:02:54,242 INFO L276 IsEmpty]: Start isEmpty. Operand 45156 states and 64770 transitions. [2021-11-23 02:02:54,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-23 02:02:54,245 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:02:54,245 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] [2021-11-23 02:02:54,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-23 02:02:54,246 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-23 02:02:54,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:02:54,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1028633140, now seen corresponding path program 1 times [2021-11-23 02:02:54,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:02:54,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122148063] [2021-11-23 02:02:54,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:02:54,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:02:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:02:54,602 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:02:54,603 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:02:54,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122148063] [2021-11-23 02:02:54,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122148063] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:02:54,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:02:54,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:02:54,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528296710] [2021-11-23 02:02:54,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:02:54,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:02:54,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:02:54,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:02:54,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:02:54,607 INFO L87 Difference]: Start difference. First operand 45156 states and 64770 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) [2021-11-23 02:02:57,945 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 [] [2021-11-23 02:03:02,589 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:03:06,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:03:08,410 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 [] [2021-11-23 02:03:16,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:03:16,495 INFO L93 Difference]: Finished difference Result 45260 states and 64871 transitions. [2021-11-23 02:03:16,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:03:16,495 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 [2021-11-23 02:03:16,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:03:16,672 INFO L225 Difference]: With dead ends: 45260 [2021-11-23 02:03:16,672 INFO L226 Difference]: Without dead ends: 45258 [2021-11-23 02:03:16,688 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 [2021-11-23 02:03:16,689 INFO L933 BasicCegarLoop]: 4500 mSDtfsCounter, 3555 mSDsluCounter, 8891 mSDsCounter, 0 mSdLazyCounter, 1637 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3557 SdHoareTripleChecker+Valid, 12323 SdHoareTripleChecker+Invalid, 1641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1637 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:03:16,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3557 Valid, 12323 Invalid, 1641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1637 Invalid, 3 Unknown, 0 Unchecked, 20.3s Time] [2021-11-23 02:03:16,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45258 states. [2021-11-23 02:03:18,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45258 to 45172. [2021-11-23 02:03:18,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45172 states, 27139 states have (on average 1.2965474041047937) internal successors, (35187), 28598 states have internal predecessors, (35187), 14742 states have call successors, (14742), 3290 states have call predecessors, (14742), 3257 states have return successors, (14858), 13992 states have call predecessors, (14858), 14740 states have call successors, (14858) [2021-11-23 02:03:19,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45172 states to 45172 states and 64787 transitions. [2021-11-23 02:03:19,325 INFO L78 Accepts]: Start accepts. Automaton has 45172 states and 64787 transitions. Word has length 104 [2021-11-23 02:03:19,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:03:19,325 INFO L470 AbstractCegarLoop]: Abstraction has 45172 states and 64787 transitions. [2021-11-23 02:03:19,325 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) [2021-11-23 02:03:19,325 INFO L276 IsEmpty]: Start isEmpty. Operand 45172 states and 64787 transitions. [2021-11-23 02:03:19,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-23 02:03:19,328 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:03:19,328 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:03:19,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-23 02:03:19,329 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-23 02:03:19,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:03:19,330 INFO L85 PathProgramCache]: Analyzing trace with hash -112274403, now seen corresponding path program 1 times [2021-11-23 02:03:19,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:03:19,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741671110] [2021-11-23 02:03:19,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:03:19,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:03:19,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:03:19,810 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-23 02:03:19,810 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:03:19,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741671110] [2021-11-23 02:03:19,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741671110] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:03:19,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:03:19,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:03:19,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540585590] [2021-11-23 02:03:19,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:03:19,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:03:19,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:03:19,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:03:19,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:03:19,812 INFO L87 Difference]: Start difference. First operand 45172 states and 64787 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-23 02:03:24,784 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 [] [2021-11-23 02:03:31,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:03:33,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:03:34,831 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:03:36,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:03:40,580 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:03:42,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:03:44,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:03:57,237 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:03:59,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:04:04,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:04:05,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:04:05,562 INFO L93 Difference]: Finished difference Result 57630 states and 82559 transitions. [2021-11-23 02:04:05,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 02:04:05,562 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 121 [2021-11-23 02:04:05,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:04:05,809 INFO L225 Difference]: With dead ends: 57630 [2021-11-23 02:04:05,809 INFO L226 Difference]: Without dead ends: 57628 [2021-11-23 02:04:05,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:04:05,832 INFO L933 BasicCegarLoop]: 4543 mSDtfsCounter, 3611 mSDsluCounter, 17453 mSDsCounter, 0 mSdLazyCounter, 4443 mSolverCounterSat, 3 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3615 SdHoareTripleChecker+Valid, 19808 SdHoareTripleChecker+Invalid, 4453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4443 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:04:05,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3615 Valid, 19808 Invalid, 4453 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 4443 Invalid, 7 Unknown, 0 Unchecked, 43.4s Time] [2021-11-23 02:04:05,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57628 states. [2021-11-23 02:04:08,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57628 to 57384. [2021-11-23 02:04:08,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57384 states, 34427 states have (on average 1.2941877015133472) internal successors, (44555), 36238 states have internal predecessors, (44555), 18750 states have call successors, (18750), 4206 states have call predecessors, (18750), 4173 states have return successors, (18954), 17824 states have call predecessors, (18954), 18748 states have call successors, (18954) [2021-11-23 02:04:09,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57384 states to 57384 states and 82259 transitions. [2021-11-23 02:04:09,062 INFO L78 Accepts]: Start accepts. Automaton has 57384 states and 82259 transitions. Word has length 121 [2021-11-23 02:04:09,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:04:09,062 INFO L470 AbstractCegarLoop]: Abstraction has 57384 states and 82259 transitions. [2021-11-23 02:04:09,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-23 02:04:09,062 INFO L276 IsEmpty]: Start isEmpty. Operand 57384 states and 82259 transitions. [2021-11-23 02:04:09,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-23 02:04:09,065 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:04:09,065 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] [2021-11-23 02:04:09,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-23 02:04:09,066 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-23 02:04:09,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:04:09,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1298797885, now seen corresponding path program 1 times [2021-11-23 02:04:09,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:04:09,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036101335] [2021-11-23 02:04:09,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:04:09,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:04:09,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:04:09,382 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:04:09,382 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:04:09,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036101335] [2021-11-23 02:04:09,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036101335] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:04:09,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:04:09,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:04:09,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9480471] [2021-11-23 02:04:09,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:04:09,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:04:09,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:04:09,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:04:09,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:04:09,385 INFO L87 Difference]: Start difference. First operand 57384 states and 82259 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) [2021-11-23 02:04:12,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:04:18,684 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:04:21,426 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:04:27,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:04:29,920 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 [] [2021-11-23 02:04:33,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:04:33,381 INFO L93 Difference]: Finished difference Result 57479 states and 82347 transitions. [2021-11-23 02:04:33,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:04:33,381 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 [2021-11-23 02:04:33,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:04:33,633 INFO L225 Difference]: With dead ends: 57479 [2021-11-23 02:04:33,633 INFO L226 Difference]: Without dead ends: 57477 [2021-11-23 02:04:33,660 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 [2021-11-23 02:04:33,661 INFO L933 BasicCegarLoop]: 4515 mSDtfsCounter, 3586 mSDsluCounter, 8908 mSDsCounter, 0 mSdLazyCounter, 1641 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3588 SdHoareTripleChecker+Valid, 12353 SdHoareTripleChecker+Invalid, 1643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1641 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:04:33,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3588 Valid, 12353 Invalid, 1643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1641 Invalid, 1 Unknown, 0 Unchecked, 21.8s Time] [2021-11-23 02:04:33,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57477 states. [2021-11-23 02:04:37,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57477 to 57395. [2021-11-23 02:04:37,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57395 states, 34433 states have (on average 1.2941654807887781) internal successors, (44562), 36244 states have internal predecessors, (44562), 18753 states have call successors, (18753), 4208 states have call predecessors, (18753), 4175 states have return successors, (18957), 17827 states have call predecessors, (18957), 18751 states have call successors, (18957) [2021-11-23 02:04:37,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57395 states to 57395 states and 82272 transitions. [2021-11-23 02:04:37,915 INFO L78 Accepts]: Start accepts. Automaton has 57395 states and 82272 transitions. Word has length 109 [2021-11-23 02:04:37,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:04:37,916 INFO L470 AbstractCegarLoop]: Abstraction has 57395 states and 82272 transitions. [2021-11-23 02:04:37,917 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) [2021-11-23 02:04:37,917 INFO L276 IsEmpty]: Start isEmpty. Operand 57395 states and 82272 transitions. [2021-11-23 02:04:37,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-23 02:04:37,950 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:04:37,950 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:04:37,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-23 02:04:37,951 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-23 02:04:37,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:04:37,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1296141979, now seen corresponding path program 1 times [2021-11-23 02:04:37,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:04:37,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325729677] [2021-11-23 02:04:37,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:04:37,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:04:38,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:04:38,335 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-23 02:04:38,335 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:04:38,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325729677] [2021-11-23 02:04:38,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325729677] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:04:38,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:04:38,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:04:38,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443352568] [2021-11-23 02:04:38,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:04:38,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:04:38,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:04:38,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:04:38,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:04:38,339 INFO L87 Difference]: Start difference. First operand 57395 states and 82272 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-23 02:04:41,254 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 [] [2021-11-23 02:04:45,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:04:48,833 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:04:54,986 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:04:57,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:05:01,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:05:01,374 INFO L93 Difference]: Finished difference Result 114828 states and 164740 transitions. [2021-11-23 02:05:01,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:05:01,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 124 [2021-11-23 02:05:01,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:05:01,916 INFO L225 Difference]: With dead ends: 114828 [2021-11-23 02:05:01,931 INFO L226 Difference]: Without dead ends: 57451 [2021-11-23 02:05:02,214 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 [2021-11-23 02:05:02,214 INFO L933 BasicCegarLoop]: 4519 mSDtfsCounter, 3556 mSDsluCounter, 3827 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3558 SdHoareTripleChecker+Valid, 7842 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:05:02,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3558 Valid, 7842 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1072 Invalid, 3 Unknown, 0 Unchecked, 19.8s Time] [2021-11-23 02:05:02,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57451 states. [2021-11-23 02:05:05,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57451 to 57347. [2021-11-23 02:05:05,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57347 states, 34385 states have (on average 1.2931801657699578) internal successors, (44466), 36196 states have internal predecessors, (44466), 18753 states have call successors, (18753), 4208 states have call predecessors, (18753), 4175 states have return successors, (18957), 17827 states have call predecessors, (18957), 18751 states have call successors, (18957) [2021-11-23 02:05:06,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57347 states to 57347 states and 82176 transitions. [2021-11-23 02:05:06,494 INFO L78 Accepts]: Start accepts. Automaton has 57347 states and 82176 transitions. Word has length 124 [2021-11-23 02:05:06,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:05:06,496 INFO L470 AbstractCegarLoop]: Abstraction has 57347 states and 82176 transitions. [2021-11-23 02:05:06,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-23 02:05:06,497 INFO L276 IsEmpty]: Start isEmpty. Operand 57347 states and 82176 transitions. [2021-11-23 02:05:06,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-23 02:05:06,520 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:05:06,520 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] [2021-11-23 02:05:06,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-23 02:05:06,521 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_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-23 02:05:06,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:05:06,524 INFO L85 PathProgramCache]: Analyzing trace with hash 961932891, now seen corresponding path program 1 times [2021-11-23 02:05:06,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:05:06,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478018391] [2021-11-23 02:05:06,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:05:06,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:05:06,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:05:06,894 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:05:06,895 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:05:06,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478018391] [2021-11-23 02:05:06,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478018391] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:05:06,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:05:06,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:05:06,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776307712] [2021-11-23 02:05:06,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:05:06,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:05:06,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:05:06,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:05:06,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:05:06,900 INFO L87 Difference]: Start difference. First operand 57347 states and 82176 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) [2021-11-23 02:05:09,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:05:15,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:05:18,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:05:22,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:05:31,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:05:31,013 INFO L93 Difference]: Finished difference Result 57426 states and 82252 transitions. [2021-11-23 02:05:31,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:05:31,013 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 [2021-11-23 02:05:31,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:05:31,426 INFO L225 Difference]: With dead ends: 57426 [2021-11-23 02:05:31,427 INFO L226 Difference]: Without dead ends: 57424 [2021-11-23 02:05:31,450 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 [2021-11-23 02:05:31,451 INFO L933 BasicCegarLoop]: 4500 mSDtfsCounter, 3542 mSDsluCounter, 8891 mSDsCounter, 0 mSdLazyCounter, 1638 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3544 SdHoareTripleChecker+Valid, 12323 SdHoareTripleChecker+Invalid, 1641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1638 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:05:31,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3544 Valid, 12323 Invalid, 1641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1638 Invalid, 2 Unknown, 0 Unchecked, 21.7s Time] [2021-11-23 02:05:31,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57424 states. [2021-11-23 02:05:35,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57424 to 57358. [2021-11-23 02:05:35,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57358 states, 34391 states have (on average 1.2931290163124074) internal successors, (44472), 36202 states have internal predecessors, (44472), 18756 states have call successors, (18756), 4210 states have call predecessors, (18756), 4177 states have return successors, (18960), 17830 states have call predecessors, (18960), 18754 states have call successors, (18960) [2021-11-23 02:05:35,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57358 states to 57358 states and 82188 transitions. [2021-11-23 02:05:35,690 INFO L78 Accepts]: Start accepts. Automaton has 57358 states and 82188 transitions. Word has length 114 [2021-11-23 02:05:35,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:05:35,691 INFO L470 AbstractCegarLoop]: Abstraction has 57358 states and 82188 transitions. [2021-11-23 02:05:35,691 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) [2021-11-23 02:05:35,691 INFO L276 IsEmpty]: Start isEmpty. Operand 57358 states and 82188 transitions. [2021-11-23 02:05:35,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-23 02:05:35,693 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:05:35,693 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:05:35,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-23 02:05:35,694 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-23 02:05:35,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:05:35,694 INFO L85 PathProgramCache]: Analyzing trace with hash -2059505419, now seen corresponding path program 1 times [2021-11-23 02:05:35,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:05:35,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510863318] [2021-11-23 02:05:35,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:05:35,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:05:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:05:36,654 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-11-23 02:05:36,654 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:05:36,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510863318] [2021-11-23 02:05:36,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510863318] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:05:36,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:05:36,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:05:36,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409108878] [2021-11-23 02:05:36,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:05:36,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:05:36,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:05:36,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:05:36,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:05:36,659 INFO L87 Difference]: Start difference. First operand 57358 states and 82188 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-23 02:05:40,293 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:05:46,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:05:51,377 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 [] [2021-11-23 02:06:00,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:00,720 INFO L93 Difference]: Finished difference Result 104034 states and 151960 transitions. [2021-11-23 02:06:00,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:06:00,723 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 130 [2021-11-23 02:06:00,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:01,026 INFO L225 Difference]: With dead ends: 104034 [2021-11-23 02:06:01,026 INFO L226 Difference]: Without dead ends: 69458 [2021-11-23 02:06:01,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:06:01,138 INFO L933 BasicCegarLoop]: 3934 mSDtfsCounter, 584 mSDsluCounter, 8280 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 281 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 11203 SdHoareTripleChecker+Invalid, 1857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:01,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [721 Valid, 11203 Invalid, 1857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 1573 Invalid, 3 Unknown, 0 Unchecked, 20.4s Time] [2021-11-23 02:06:01,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69458 states.