./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/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_44606778-b413-4136-90e6-6582decd178d/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/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_44606778-b413-4136-90e6-6582decd178d/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 b25ac84d4a20a437c31c3bd685865b0db6f54088dab7ab415bb47113c804a34a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:34:38,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:34:38,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:34:38,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:34:38,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:34:38,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:34:38,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:34:38,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:34:38,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:34:38,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:34:38,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:34:38,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:34:38,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:34:38,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:34:38,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:34:38,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:34:38,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:34:38,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:34:38,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:34:38,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:34:38,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:34:38,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:34:38,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:34:38,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:34:38,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:34:38,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:34:38,308 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:34:38,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:34:38,311 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:34:38,312 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:34:38,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:34:38,313 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:34:38,315 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:34:38,317 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:34:38,319 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:34:38,319 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:34:38,320 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:34:38,320 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:34:38,320 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:34:38,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:34:38,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:34:38,323 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 03:34:38,367 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:34:38,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:34:38,369 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:34:38,369 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:34:38,377 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:34:38,377 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:34:38,377 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:34:38,378 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:34:38,378 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:34:38,378 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:34:38,380 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:34:38,380 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:34:38,380 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:34:38,381 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:34:38,381 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:34:38,381 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:34:38,382 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:34:38,382 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:34:38,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:34:38,385 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:34:38,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:34:38,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:34:38,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:34:38,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:34:38,386 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:34:38,386 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:34:38,387 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:34:38,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:34:38,387 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:34:38,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:34:38,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:34:38,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:34:38,389 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:34:38,389 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:34:38,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:34:38,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:34:38,390 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:34:38,390 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:34:38,390 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_44606778-b413-4136-90e6-6582decd178d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b25ac84d4a20a437c31c3bd685865b0db6f54088dab7ab415bb47113c804a34a [2021-11-23 03:34:38,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:34:38,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:34:38,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:34:38,753 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:34:38,754 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:34:38,755 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i [2021-11-23 03:34:38,824 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/bin/utaipan-EQgc7hIp5V/data/70e6442ba/3457165743f64553a8ef1bb991b524fb/FLAG2e5f4d41e [2021-11-23 03:34:39,906 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:34:39,907 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i [2021-11-23 03:34:39,983 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/bin/utaipan-EQgc7hIp5V/data/70e6442ba/3457165743f64553a8ef1bb991b524fb/FLAG2e5f4d41e [2021-11-23 03:34:40,221 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/bin/utaipan-EQgc7hIp5V/data/70e6442ba/3457165743f64553a8ef1bb991b524fb [2021-11-23 03:34:40,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:34:40,226 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:34:40,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:34:40,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:34:40,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:34:40,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:34:40" (1/1) ... [2021-11-23 03:34:40,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53e22e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:40, skipping insertion in model container [2021-11-23 03:34:40,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:34:40" (1/1) ... [2021-11-23 03:34:40,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:34:40,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:34:49,522 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[571462,571475] [2021-11-23 03:34:49,525 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[571607,571620] [2021-11-23 03:34:49,525 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[571753,571766] [2021-11-23 03:34:49,525 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[571918,571931] [2021-11-23 03:34:49,526 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572076,572089] [2021-11-23 03:34:49,526 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572234,572247] [2021-11-23 03:34:49,527 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572392,572405] [2021-11-23 03:34:49,527 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572552,572565] [2021-11-23 03:34:49,528 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572711,572724] [2021-11-23 03:34:49,528 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572850,572863] [2021-11-23 03:34:49,529 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572992,573005] [2021-11-23 03:34:49,529 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[573141,573154] [2021-11-23 03:34:49,529 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[573280,573293] [2021-11-23 03:34:49,530 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[573435,573448] [2021-11-23 03:34:49,530 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[573595,573608] [2021-11-23 03:34:49,531 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[573746,573759] [2021-11-23 03:34:49,531 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[573897,573910] [2021-11-23 03:34:49,532 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574049,574062] [2021-11-23 03:34:49,532 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574198,574211] [2021-11-23 03:34:49,532 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574346,574359] [2021-11-23 03:34:49,533 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574503,574516] [2021-11-23 03:34:49,533 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574652,574665] [2021-11-23 03:34:49,534 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574808,574821] [2021-11-23 03:34:49,534 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574961,574974] [2021-11-23 03:34:49,535 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575107,575120] [2021-11-23 03:34:49,535 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575250,575263] [2021-11-23 03:34:49,536 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575402,575415] [2021-11-23 03:34:49,536 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575548,575561] [2021-11-23 03:34:49,537 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575693,575706] [2021-11-23 03:34:49,537 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575847,575860] [2021-11-23 03:34:49,537 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575998,576011] [2021-11-23 03:34:49,538 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[576153,576166] [2021-11-23 03:34:49,538 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[576305,576318] [2021-11-23 03:34:49,539 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[576460,576473] [2021-11-23 03:34:49,539 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[576624,576637] [2021-11-23 03:34:49,540 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[576780,576793] [2021-11-23 03:34:49,540 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[576944,576957] [2021-11-23 03:34:49,540 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[577086,577099] [2021-11-23 03:34:49,541 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[577244,577257] [2021-11-23 03:34:49,541 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[577411,577424] [2021-11-23 03:34:49,542 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[577570,577583] [2021-11-23 03:34:49,542 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[577729,577742] [2021-11-23 03:34:49,543 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[577878,577891] [2021-11-23 03:34:49,543 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578025,578038] [2021-11-23 03:34:49,543 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578164,578177] [2021-11-23 03:34:49,544 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578327,578340] [2021-11-23 03:34:49,544 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578493,578506] [2021-11-23 03:34:49,545 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578657,578670] [2021-11-23 03:34:49,545 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578822,578835] [2021-11-23 03:34:49,546 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578987,579000] [2021-11-23 03:34:49,546 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[579153,579166] [2021-11-23 03:34:49,547 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[579318,579331] [2021-11-23 03:34:49,547 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[579485,579498] [2021-11-23 03:34:49,547 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[579645,579658] [2021-11-23 03:34:49,548 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[579807,579820] [2021-11-23 03:34:49,548 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[579966,579979] [2021-11-23 03:34:49,549 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580112,580125] [2021-11-23 03:34:49,549 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580255,580268] [2021-11-23 03:34:49,549 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580399,580412] [2021-11-23 03:34:49,550 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580542,580555] [2021-11-23 03:34:49,550 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580686,580699] [2021-11-23 03:34:49,551 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580827,580840] [2021-11-23 03:34:49,551 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580965,580978] [2021-11-23 03:34:49,552 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[581123,581136] [2021-11-23 03:34:49,552 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[581282,581295] [2021-11-23 03:34:49,553 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[581438,581451] [2021-11-23 03:34:49,553 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[581587,581600] [2021-11-23 03:34:49,553 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[581739,581752] [2021-11-23 03:34:49,554 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[581890,581903] [2021-11-23 03:34:49,554 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582039,582052] [2021-11-23 03:34:49,555 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582191,582204] [2021-11-23 03:34:49,555 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582339,582352] [2021-11-23 03:34:49,556 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582492,582505] [2021-11-23 03:34:49,556 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582643,582656] [2021-11-23 03:34:49,556 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582793,582806] [2021-11-23 03:34:49,557 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582940,582953] [2021-11-23 03:34:49,557 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[583091,583104] [2021-11-23 03:34:49,558 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[583242,583255] [2021-11-23 03:34:49,558 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[583390,583403] [2021-11-23 03:34:49,558 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[583556,583569] [2021-11-23 03:34:49,559 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[583725,583738] [2021-11-23 03:34:49,559 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[583892,583905] [2021-11-23 03:34:49,560 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[584060,584073] [2021-11-23 03:34:49,560 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[584210,584223] [2021-11-23 03:34:49,561 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[584357,584370] [2021-11-23 03:34:49,561 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[584518,584531] [2021-11-23 03:34:49,561 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[584688,584701] [2021-11-23 03:34:49,562 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[584850,584863] [2021-11-23 03:34:49,594 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:34:49,627 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:34:50,333 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[571462,571475] [2021-11-23 03:34:50,334 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[571607,571620] [2021-11-23 03:34:50,339 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[571753,571766] [2021-11-23 03:34:50,341 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[571918,571931] [2021-11-23 03:34:50,341 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572076,572089] [2021-11-23 03:34:50,342 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572234,572247] [2021-11-23 03:34:50,342 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572392,572405] [2021-11-23 03:34:50,342 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572552,572565] [2021-11-23 03:34:50,343 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572711,572724] [2021-11-23 03:34:50,343 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572850,572863] [2021-11-23 03:34:50,344 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[572992,573005] [2021-11-23 03:34:50,345 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[573141,573154] [2021-11-23 03:34:50,345 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[573280,573293] [2021-11-23 03:34:50,346 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[573435,573448] [2021-11-23 03:34:50,346 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[573595,573608] [2021-11-23 03:34:50,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[573746,573759] [2021-11-23 03:34:50,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[573897,573910] [2021-11-23 03:34:50,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574049,574062] [2021-11-23 03:34:50,348 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574198,574211] [2021-11-23 03:34:50,348 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574346,574359] [2021-11-23 03:34:50,349 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574503,574516] [2021-11-23 03:34:50,349 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574652,574665] [2021-11-23 03:34:50,350 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574808,574821] [2021-11-23 03:34:50,351 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[574961,574974] [2021-11-23 03:34:50,351 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575107,575120] [2021-11-23 03:34:50,352 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575250,575263] [2021-11-23 03:34:50,352 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575402,575415] [2021-11-23 03:34:50,353 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575548,575561] [2021-11-23 03:34:50,354 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575693,575706] [2021-11-23 03:34:50,354 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575847,575860] [2021-11-23 03:34:50,354 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[575998,576011] [2021-11-23 03:34:50,355 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[576153,576166] [2021-11-23 03:34:50,355 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[576305,576318] [2021-11-23 03:34:50,357 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[576460,576473] [2021-11-23 03:34:50,357 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[576624,576637] [2021-11-23 03:34:50,358 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[576780,576793] [2021-11-23 03:34:50,358 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[576944,576957] [2021-11-23 03:34:50,359 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[577086,577099] [2021-11-23 03:34:50,360 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[577244,577257] [2021-11-23 03:34:50,360 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[577411,577424] [2021-11-23 03:34:50,361 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_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[577570,577583] [2021-11-23 03:34:50,362 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[577729,577742] [2021-11-23 03:34:50,362 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[577878,577891] [2021-11-23 03:34:50,363 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578025,578038] [2021-11-23 03:34:50,363 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578164,578177] [2021-11-23 03:34:50,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578327,578340] [2021-11-23 03:34:50,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578493,578506] [2021-11-23 03:34:50,365 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578657,578670] [2021-11-23 03:34:50,365 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578822,578835] [2021-11-23 03:34:50,366 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[578987,579000] [2021-11-23 03:34:50,366 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[579153,579166] [2021-11-23 03:34:50,367 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[579318,579331] [2021-11-23 03:34:50,367 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[579485,579498] [2021-11-23 03:34:50,368 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[579645,579658] [2021-11-23 03:34:50,369 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[579807,579820] [2021-11-23 03:34:50,370 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[579966,579979] [2021-11-23 03:34:50,374 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580112,580125] [2021-11-23 03:34:50,374 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580255,580268] [2021-11-23 03:34:50,375 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580399,580412] [2021-11-23 03:34:50,375 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580542,580555] [2021-11-23 03:34:50,376 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580686,580699] [2021-11-23 03:34:50,377 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580827,580840] [2021-11-23 03:34:50,378 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[580965,580978] [2021-11-23 03:34:50,378 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[581123,581136] [2021-11-23 03:34:50,379 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[581282,581295] [2021-11-23 03:34:50,388 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[581438,581451] [2021-11-23 03:34:50,390 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[581587,581600] [2021-11-23 03:34:50,391 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[581739,581752] [2021-11-23 03:34:50,392 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[581890,581903] [2021-11-23 03:34:50,392 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582039,582052] [2021-11-23 03:34:50,393 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582191,582204] [2021-11-23 03:34:50,393 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582339,582352] [2021-11-23 03:34:50,393 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582492,582505] [2021-11-23 03:34:50,394 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582643,582656] [2021-11-23 03:34:50,394 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582793,582806] [2021-11-23 03:34:50,395 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[582940,582953] [2021-11-23 03:34:50,395 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[583091,583104] [2021-11-23 03:34:50,395 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[583242,583255] [2021-11-23 03:34:50,397 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[583390,583403] [2021-11-23 03:34:50,398 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[583556,583569] [2021-11-23 03:34:50,398 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[583725,583738] [2021-11-23 03:34:50,399 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[583892,583905] [2021-11-23 03:34:50,400 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[584060,584073] [2021-11-23 03:34:50,400 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[584210,584223] [2021-11-23 03:34:50,401 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[584357,584370] [2021-11-23 03:34:50,401 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[584518,584531] [2021-11-23 03:34:50,401 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[584688,584701] [2021-11-23 03:34:50,402 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--nvme.ko.cil.i[584850,584863] [2021-11-23 03:34:50,411 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:34:50,859 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:34:50,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:50 WrapperNode [2021-11-23 03:34:50,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:34:50,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:34:50,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:34:50,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:34:50,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:50" (1/1) ... [2021-11-23 03:34:51,094 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:50" (1/1) ... [2021-11-23 03:34:51,554 INFO L137 Inliner]: procedures = 984, calls = 4896, calls flagged for inlining = 497, calls inlined = 414, statements flattened = 12961 [2021-11-23 03:34:51,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:34:51,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:34:51,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:34:51,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:34:51,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:50" (1/1) ... [2021-11-23 03:34:51,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:50" (1/1) ... [2021-11-23 03:34:51,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:50" (1/1) ... [2021-11-23 03:34:51,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:50" (1/1) ... [2021-11-23 03:34:52,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:50" (1/1) ... [2021-11-23 03:34:52,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:50" (1/1) ... [2021-11-23 03:34:52,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:50" (1/1) ... [2021-11-23 03:34:52,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:34:52,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:34:52,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:34:52,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:34:52,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:50" (1/1) ... [2021-11-23 03:34:52,441 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:34:52,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:34:52,491 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:34:52,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:34:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_127 [2021-11-23 03:34:52,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_127 [2021-11-23 03:34:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-23 03:34:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_dev_unmap [2021-11-23 03:34:52,640 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_dev_unmap [2021-11-23 03:34:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure queue_kthread_work [2021-11-23 03:34:52,640 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_kthread_work [2021-11-23 03:34:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_queue_lock_of_request_queue [2021-11-23 03:34:52,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_queue_lock_of_request_queue [2021-11-23 03:34:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_trans_fill_inf_exc_page [2021-11-23 03:34:52,641 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_trans_fill_inf_exc_page [2021-11-23 03:34:52,642 INFO L130 BoogieDeclarations]: Found specification of procedure adapter_delete_cq [2021-11-23 03:34:52,642 INFO L138 BoogieDeclarations]: Found implementation of procedure adapter_delete_cq [2021-11-23 03:34:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-23 03:34:52,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-23 03:34:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2021-11-23 03:34:52,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2021-11-23 03:34:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_setup_prps [2021-11-23 03:34:52,643 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_setup_prps [2021-11-23 03:34:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-23 03:34:52,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-23 03:34:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-23 03:34:52,644 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-23 03:34:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure queue_flag_set_unlocked [2021-11-23 03:34:52,644 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_flag_set_unlocked [2021-11-23 03:34:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_suspend [2021-11-23 03:34:52,645 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_suspend [2021-11-23 03:34:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_trans_copy_to_user [2021-11-23 03:34:52,645 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_trans_copy_to_user [2021-11-23 03:34:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_release_instance [2021-11-23 03:34:52,645 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_release_instance [2021-11-23 03:34:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-23 03:34:52,645 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-23 03:34:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2021-11-23 03:34:52,646 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2021-11-23 03:34:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_submit_cmd [2021-11-23 03:34:52,646 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_submit_cmd [2021-11-23 03:34:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_dev_resume [2021-11-23 03:34:52,646 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_dev_resume [2021-11-23 03:34:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_dev_start [2021-11-23 03:34:52,647 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_dev_start [2021-11-23 03:34:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-23 03:34:52,647 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-23 03:34:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_table [2021-11-23 03:34:52,647 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_table [2021-11-23 03:34:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure blk_integrity_unregister [2021-11-23 03:34:52,648 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_integrity_unregister [2021-11-23 03:34:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-23 03:34:52,648 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-23 03:34:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_dif_remap [2021-11-23 03:34:52,661 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_dif_remap [2021-11-23 03:34:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-23 03:34:52,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-23 03:34:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_identify [2021-11-23 03:34:52,662 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_identify [2021-11-23 03:34:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-23 03:34:52,662 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-23 03:34:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_dev_ioctl [2021-11-23 03:34:52,662 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_dev_ioctl [2021-11-23 03:34:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-23 03:34:52,663 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-23 03:34:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2021-11-23 03:34:52,663 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2021-11-23 03:34:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_106 [2021-11-23 03:34:52,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_106 [2021-11-23 03:34:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2021-11-23 03:34:52,663 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2021-11-23 03:34:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure db_bar_size [2021-11-23 03:34:52,663 INFO L138 BoogieDeclarations]: Found implementation of procedure db_bar_size [2021-11-23 03:34:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 03:34:52,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 03:34:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_process_cq [2021-11-23 03:34:52,664 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_process_cq [2021-11-23 03:34:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-23 03:34:52,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-23 03:34:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:34:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-23 03:34:52,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-23 03:34:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-23 03:34:52,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-23 03:34:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_free_queues [2021-11-23 03:34:52,665 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_free_queues [2021-11-23 03:34:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2021-11-23 03:34:52,665 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2021-11-23 03:34:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure queue_request_irq [2021-11-23 03:34:52,665 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_request_irq [2021-11-23 03:34:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_alloc_tag_set [2021-11-23 03:34:52,665 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_alloc_tag_set [2021-11-23 03:34:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-23 03:34:52,666 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-23 03:34:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-23 03:34:52,666 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-23 03:34:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2021-11-23 03:34:52,666 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2021-11-23 03:34:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc_node [2021-11-23 03:34:52,666 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc_node [2021-11-23 03:34:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-23 03:34:52,666 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-23 03:34:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_init_queue [2021-11-23 03:34:52,667 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_init_queue [2021-11-23 03:34:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2021-11-23 03:34:52,667 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2021-11-23 03:34:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-23 03:34:52,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-23 03:34:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get_unless_zero [2021-11-23 03:34:52,667 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get_unless_zero [2021-11-23 03:34:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_check_return_value_probe [2021-11-23 03:34:52,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_check_return_value_probe [2021-11-23 03:34:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:34:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-23 03:34:52,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-23 03:34:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_check_return_value_probe [2021-11-23 03:34:52,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_check_return_value_probe [2021-11-23 03:34:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-23 03:34:52,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-23 03:34:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:34:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 03:34:52,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 03:34:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:34:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2021-11-23 03:34:52,669 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2021-11-23 03:34:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 03:34:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_del_queue_end [2021-11-23 03:34:52,669 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_del_queue_end [2021-11-23 03:34:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-23 03:34:52,669 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-23 03:34:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_trans_fill_control_page [2021-11-23 03:34:52,670 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_trans_fill_control_page [2021-11-23 03:34:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_bytes [2021-11-23 03:34:52,670 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_bytes [2021-11-23 03:34:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_threaded_irq [2021-11-23 03:34:52,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_threaded_irq [2021-11-23 03:34:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2021-11-23 03:34:52,670 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2021-11-23 03:34:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_dev_list_remove [2021-11-23 03:34:52,670 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_dev_list_remove [2021-11-23 03:34:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-23 03:34:52,671 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-23 03:34:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_unmap_user_pages [2021-11-23 03:34:52,671 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_unmap_user_pages [2021-11-23 03:34:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_clear_queue [2021-11-23 03:34:52,671 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_clear_queue [2021-11-23 03:34:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:34:52,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:34:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_cmd_size [2021-11-23 03:34:52,672 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_cmd_size [2021-11-23 03:34:52,672 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-23 03:34:52,672 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-23 03:34:52,672 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_wait_ready [2021-11-23 03:34:52,672 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_wait_ready [2021-11-23 03:34:52,672 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_revalidate_disk [2021-11-23 03:34:52,672 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_revalidate_disk [2021-11-23 03:34:52,672 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-23 03:34:52,672 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-23 03:34:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 03:34:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_set_info [2021-11-23 03:34:52,673 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_set_info [2021-11-23 03:34:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-23 03:34:52,673 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-23 03:34:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_set_irq_hints [2021-11-23 03:34:52,673 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_set_irq_hints [2021-11-23 03:34:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-11-23 03:34:52,673 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-11-23 03:34:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_sg_attrs [2021-11-23 03:34:52,674 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_sg_attrs [2021-11-23 03:34:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-23 03:34:52,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-23 03:34:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-11-23 03:34:52,674 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-11-23 03:34:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_freeze_queue_start [2021-11-23 03:34:52,674 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_freeze_queue_start [2021-11-23 03:34:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_init_queue [2021-11-23 03:34:52,675 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_init_queue [2021-11-23 03:34:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_trans_io [2021-11-23 03:34:52,675 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_trans_io [2021-11-23 03:34:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2021-11-23 03:34:52,675 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2021-11-23 03:34:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 03:34:52,675 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 03:34:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-23 03:34:52,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-23 03:34:52,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-23 03:34:52,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-23 03:34:52,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_dev_list_lock [2021-11-23 03:34:52,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_dev_list_lock [2021-11-23 03:34:52,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-23 03:34:52,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-23 03:34:52,676 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-23 03:34:52,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-23 03:34:52,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-23 03:34:52,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-23 03:34:52,677 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_node [2021-11-23 03:34:52,677 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_node [2021-11-23 03:34:52,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:34:52,677 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 03:34:52,677 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 03:34:52,677 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_remove [2021-11-23 03:34:52,677 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_remove [2021-11-23 03:34:52,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-23 03:34:52,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-23 03:34:52,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_base_class__double_registration [2021-11-23 03:34:52,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_base_class__double_registration [2021-11-23 03:34:52,678 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_rq_to_pdu [2021-11-23 03:34:52,678 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_rq_to_pdu [2021-11-23 03:34:52,678 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 03:34:52,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 03:34:52,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:34:52,678 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-11-23 03:34:52,678 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-11-23 03:34:52,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_destroy_class [2021-11-23 03:34:52,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_destroy_class [2021-11-23 03:34:52,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_dev_list_lock [2021-11-23 03:34:52,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_dev_list_lock [2021-11-23 03:34:52,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_q_lock_of_nvme_queue [2021-11-23 03:34:52,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_q_lock_of_nvme_queue [2021-11-23 03:34:52,679 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-23 03:34:52,679 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-23 03:34:52,679 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_free_request [2021-11-23 03:34:52,679 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_free_request [2021-11-23 03:34:52,679 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_submit_admin_cmd [2021-11-23 03:34:52,680 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_submit_admin_cmd [2021-11-23 03:34:52,680 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-23 03:34:52,680 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-23 03:34:52,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-23 03:34:52,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-23 03:34:52,680 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-23 03:34:52,680 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-23 03:34:52,680 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_trans_copy_from_user [2021-11-23 03:34:52,680 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_trans_copy_from_user [2021-11-23 03:34:52,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-23 03:34:52,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-23 03:34:52,681 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-23 03:34:52,681 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-23 03:34:52,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-23 03:34:52,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-23 03:34:52,681 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-23 03:34:52,681 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-23 03:34:52,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:34:52,681 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_kick_requeue_list [2021-11-23 03:34:52,682 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_kick_requeue_list [2021-11-23 03:34:52,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 03:34:52,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 03:34:52,682 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_affinity_hint [2021-11-23 03:34:52,682 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_affinity_hint [2021-11-23 03:34:52,682 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_worker_fn [2021-11-23 03:34:52,682 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2021-11-23 03:34:52,682 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2021-11-23 03:34:52,682 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_disable_queue [2021-11-23 03:34:52,683 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_disable_queue [2021-11-23 03:34:52,683 INFO L130 BoogieDeclarations]: Found specification of procedure iod_list [2021-11-23 03:34:52,683 INFO L138 BoogieDeclarations]: Found implementation of procedure iod_list [2021-11-23 03:34:52,683 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_shutdown [2021-11-23 03:34:52,683 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_shutdown [2021-11-23 03:34:52,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_126 [2021-11-23 03:34:52,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_126 [2021-11-23 03:34:52,683 INFO L130 BoogieDeclarations]: Found specification of procedure __nvme_alloc_iod [2021-11-23 03:34:52,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __nvme_alloc_iod [2021-11-23 03:34:52,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_q_lock_of_nvme_queue [2021-11-23 03:34:52,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_q_lock_of_nvme_queue [2021-11-23 03:34:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-23 03:34:52,684 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-23 03:34:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_free_hctx_request [2021-11-23 03:34:52,684 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_free_hctx_request [2021-11-23 03:34:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_trans_status_code [2021-11-23 03:34:52,684 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_trans_status_code [2021-11-23 03:34:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2021-11-23 03:34:52,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2021-11-23 03:34:52,685 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_free_iod [2021-11-23 03:34:52,685 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_free_iod [2021-11-23 03:34:52,685 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-11-23 03:34:52,685 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-11-23 03:34:52,685 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2021-11-23 03:34:52,685 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2021-11-23 03:34:52,685 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-23 03:34:52,685 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-23 03:34:52,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_usb_gadget__class_registration_with_usb_gadget [2021-11-23 03:34:52,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_usb_gadget__class_registration_with_usb_gadget [2021-11-23 03:34:52,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-23 03:34:52,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-23 03:34:52,686 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2021-11-23 03:34:52,686 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2021-11-23 03:34:52,686 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-23 03:34:52,686 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-23 03:34:52,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 03:34:52,686 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 03:34:52,687 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_complete_request [2021-11-23 03:34:52,687 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_complete_request [2021-11-23 03:34:52,687 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-23 03:34:52,687 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-23 03:34:52,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 03:34:52,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 03:34:52,687 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-23 03:34:52,687 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-23 03:34:52,687 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_trans_fill_caching_page [2021-11-23 03:34:52,688 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_trans_fill_caching_page [2021-11-23 03:34:52,688 INFO L130 BoogieDeclarations]: Found specification of procedure __nvme_submit_cmd [2021-11-23 03:34:52,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __nvme_submit_cmd [2021-11-23 03:34:52,688 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_sg_attrs [2021-11-23 03:34:52,688 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_sg_attrs [2021-11-23 03:34:52,688 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_get_features [2021-11-23 03:34:52,688 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_get_features [2021-11-23 03:34:52,688 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_unfreeze_queue [2021-11-23 03:34:52,688 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_unfreeze_queue [2021-11-23 03:34:52,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-23 03:34:52,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-23 03:34:52,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-23 03:34:52,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-23 03:34:52,689 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_trans_read_capacity [2021-11-23 03:34:52,689 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_trans_read_capacity [2021-11-23 03:34:52,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 03:34:52,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 03:34:52,689 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_logical_block_size [2021-11-23 03:34:52,690 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_logical_block_size [2021-11-23 03:34:52,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 03:34:52,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 03:34:52,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-23 03:34:52,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-23 03:34:52,690 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2021-11-23 03:34:52,690 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2021-11-23 03:34:52,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:34:52,690 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-23 03:34:52,691 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-23 03:34:52,691 INFO L130 BoogieDeclarations]: Found specification of procedure iod_get_private [2021-11-23 03:34:52,691 INFO L138 BoogieDeclarations]: Found implementation of procedure iod_get_private [2021-11-23 03:34:52,691 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_dev_remove_admin [2021-11-23 03:34:52,691 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_dev_remove_admin [2021-11-23 03:34:52,691 INFO L130 BoogieDeclarations]: Found specification of procedure adapter_delete_queue [2021-11-23 03:34:52,691 INFO L138 BoogieDeclarations]: Found implementation of procedure adapter_delete_queue [2021-11-23 03:34:52,691 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-23 03:34:52,691 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-23 03:34:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 03:34:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_free_tag_set [2021-11-23 03:34:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_free_tag_set [2021-11-23 03:34:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-23 03:34:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-23 03:34:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 03:34:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_blk_cleanup_queue [2021-11-23 03:34:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_blk_cleanup_queue [2021-11-23 03:34:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure __nvme_submit_admin_cmd [2021-11-23 03:34:52,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __nvme_submit_admin_cmd [2021-11-23 03:34:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-23 03:34:52,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-23 03:34:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_trans_fill_pow_cnd_page [2021-11-23 03:34:52,693 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_trans_fill_pow_cnd_page [2021-11-23 03:34:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_disable_ctrl [2021-11-23 03:34:52,693 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_disable_ctrl [2021-11-23 03:34:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_empty [2021-11-23 03:34:52,693 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_empty [2021-11-23 03:34:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-23 03:34:52,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-23 03:34:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 03:34:52,694 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 03:34:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-23 03:34:52,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-23 03:34:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-23 03:34:52,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-23 03:34:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_resume [2021-11-23 03:34:52,694 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_resume [2021-11-23 03:34:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 03:34:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 03:34:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_1 [2021-11-23 03:34:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_1 [2021-11-23 03:34:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_2 [2021-11-23 03:34:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_2 [2021-11-23 03:34:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-23 03:34:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-23 03:34:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_reset_failed_dev [2021-11-23 03:34:52,696 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_reset_failed_dev [2021-11-23 03:34:52,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_queue_lock_of_request_queue [2021-11-23 03:34:52,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_queue_lock_of_request_queue [2021-11-23 03:34:52,696 INFO L130 BoogieDeclarations]: Found specification of procedure blk_integrity_rq [2021-11-23 03:34:52,696 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_integrity_rq [2021-11-23 03:34:52,696 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2021-11-23 03:34:52,696 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2021-11-23 03:34:52,696 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 03:34:52,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 03:34:52,697 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 03:34:52,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 03:34:52,697 INFO L130 BoogieDeclarations]: Found specification of procedure fatal_signal_pending [2021-11-23 03:34:52,697 INFO L138 BoogieDeclarations]: Found implementation of procedure fatal_signal_pending [2021-11-23 03:34:52,697 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_alloc_queue [2021-11-23 03:34:52,697 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_alloc_queue [2021-11-23 03:34:52,697 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-23 03:34:52,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-23 03:34:52,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-23 03:34:52,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-23 03:34:52,698 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_submit_io_cmd [2021-11-23 03:34:52,698 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_submit_io_cmd [2021-11-23 03:34:52,698 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-23 03:34:52,698 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-23 03:34:52,698 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-11-23 03:34:52,698 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-11-23 03:34:52,698 INFO L130 BoogieDeclarations]: Found specification of procedure writeq [2021-11-23 03:34:52,698 INFO L138 BoogieDeclarations]: Found implementation of procedure writeq [2021-11-23 03:34:52,699 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-23 03:34:52,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-23 03:34:52,699 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-11-23 03:34:52,699 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-23 03:34:52,699 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-23 03:34:52,699 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_alloc_request [2021-11-23 03:34:52,699 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_alloc_request [2021-11-23 03:34:52,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 03:34:52,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 03:34:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 03:34:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-23 03:34:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-23 03:34:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_destroy_class [2021-11-23 03:34:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_destroy_class [2021-11-23 03:34:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure adapter_delete_sq [2021-11-23 03:34:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure adapter_delete_sq [2021-11-23 03:34:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-23 03:34:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-23 03:34:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msix [2021-11-23 03:34:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msix [2021-11-23 03:34:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2021-11-23 03:34:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2021-11-23 03:34:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2021-11-23 03:34:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2021-11-23 03:34:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure __le64_to_cpup [2021-11-23 03:34:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __le64_to_cpup [2021-11-23 03:34:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure work_busy [2021-11-23 03:34:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure work_busy [2021-11-23 03:34:52,702 INFO L130 BoogieDeclarations]: Found specification of procedure adapter_async_del_queue [2021-11-23 03:34:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure adapter_async_del_queue [2021-11-23 03:34:52,702 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2021-11-23 03:34:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2021-11-23 03:34:52,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 03:34:52,702 INFO L130 BoogieDeclarations]: Found specification of procedure __unregister_chrdev [2021-11-23 03:34:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __unregister_chrdev [2021-11-23 03:34:52,702 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-23 03:34:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-23 03:34:52,703 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-23 03:34:52,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-23 03:34:52,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-23 03:34:52,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-23 03:34:52,703 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_user_cmd [2021-11-23 03:34:52,703 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_user_cmd [2021-11-23 03:34:52,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-23 03:34:52,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-23 03:34:52,703 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_block_nr [2021-11-23 03:34:52,704 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_block_nr [2021-11-23 03:34:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 03:34:52,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 03:34:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-23 03:34:52,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-23 03:34:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_reset_workfn [2021-11-23 03:34:52,704 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_reset_workfn [2021-11-23 03:34:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2021-11-23 03:34:52,704 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2021-11-23 03:34:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_105 [2021-11-23 03:34:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_105 [2021-11-23 03:34:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-23 03:34:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-23 03:34:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_submit_sync_cmd [2021-11-23 03:34:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_submit_sync_cmd [2021-11-23 03:34:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_dev_shutdown [2021-11-23 03:34:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_dev_shutdown [2021-11-23 03:34:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-23 03:34:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-23 03:34:52,706 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_npages [2021-11-23 03:34:52,706 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_npages [2021-11-23 03:34:52,706 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 03:34:52,706 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 03:34:52,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-23 03:34:52,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-23 03:34:52,706 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_map_user_pages [2021-11-23 03:34:52,706 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_map_user_pages [2021-11-23 03:34:52,706 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_dev_remove [2021-11-23 03:34:52,707 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_dev_remove [2021-11-23 03:34:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-23 03:34:52,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-23 03:34:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_ioctl [2021-11-23 03:34:52,707 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_ioctl [2021-11-23 03:34:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-23 03:34:52,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-23 03:34:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_release_prp_pools [2021-11-23 03:34:52,707 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_release_prp_pools [2021-11-23 03:34:52,708 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_trans_mode_page_create [2021-11-23 03:34:52,708 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_trans_mode_page_create [2021-11-23 03:34:52,708 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-23 03:34:52,708 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-23 03:34:52,708 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-23 03:34:52,708 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-23 03:34:52,708 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_trans_send_fw_cmd [2021-11-23 03:34:52,708 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_trans_send_fw_cmd [2021-11-23 03:34:52,708 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2021-11-23 03:34:52,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2021-11-23 03:34:52,709 INFO L130 BoogieDeclarations]: Found specification of procedure iod_init [2021-11-23 03:34:52,709 INFO L138 BoogieDeclarations]: Found implementation of procedure iod_init [2021-11-23 03:34:52,709 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_dev_reset [2021-11-23 03:34:52,709 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_dev_reset [2021-11-23 03:34:52,709 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2021-11-23 03:34:52,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2021-11-23 03:34:52,709 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-11-23 03:34:52,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-11-23 03:34:52,709 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-23 03:34:52,710 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-23 03:34:52,710 INFO L130 BoogieDeclarations]: Found specification of procedure queue_logical_block_size [2021-11-23 03:34:52,710 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_logical_block_size [2021-11-23 03:34:52,710 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_suspend_queue [2021-11-23 03:34:52,710 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_suspend_queue [2021-11-23 03:34:52,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 03:34:52,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 03:34:52,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-23 03:34:52,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-23 03:34:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_trans_completion [2021-11-23 03:34:52,711 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_trans_completion [2021-11-23 03:34:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-23 03:34:52,711 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-23 03:34:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure nvme_set_features [2021-11-23 03:34:52,711 INFO L138 BoogieDeclarations]: Found implementation of procedure nvme_set_features [2021-11-23 03:34:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-23 03:34:52,711 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-23 03:34:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:34:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure readq [2021-11-23 03:34:52,712 INFO L138 BoogieDeclarations]: Found implementation of procedure readq [2021-11-23 03:34:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2021-11-23 03:34:52,712 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2021-11-23 03:34:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-23 03:34:54,293 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:34:54,306 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:35:10,410 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 03:35:30,763 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:35:34,302 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:35:34,303 INFO L301 CfgBuilder]: Removed 10 assume(true) statements. [2021-11-23 03:35:34,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:35:34 BoogieIcfgContainer [2021-11-23 03:35:34,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:35:34,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:35:34,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:35:34,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:35:34,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:34:40" (1/3) ... [2021-11-23 03:35:34,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1806c5f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:35:34, skipping insertion in model container [2021-11-23 03:35:34,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:50" (2/3) ... [2021-11-23 03:35:34,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1806c5f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:35:34, skipping insertion in model container [2021-11-23 03:35:34,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:35:34" (3/3) ... [2021-11-23 03:35:34,320 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--block--nvme.ko.cil.i [2021-11-23 03:35:34,327 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:35:34,327 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2021-11-23 03:35:34,416 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:35:34,425 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 03:35:34,425 INFO L340 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2021-11-23 03:35:34,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 3388 states, 2034 states have (on average 1.316125860373648) internal successors, (2677), 2141 states have internal predecessors, (2677), 1074 states have call successors, (1074), 249 states have call predecessors, (1074), 248 states have return successors, (1066), 1057 states have call predecessors, (1066), 1066 states have call successors, (1066) [2021-11-23 03:35:34,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 03:35:34,549 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:35:34,550 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:35:34,551 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-11-23 03:35:34,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:35:34,563 INFO L85 PathProgramCache]: Analyzing trace with hash -475537702, now seen corresponding path program 1 times [2021-11-23 03:35:34,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:35:34,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724810515] [2021-11-23 03:35:34,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:35:34,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:35:35,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:35:35,459 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 03:35:35,460 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:35:35,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724810515] [2021-11-23 03:35:35,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724810515] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:35:35,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:35:35,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:35:35,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712944196] [2021-11-23 03:35:35,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:35:35,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:35:35,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:35:35,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:35:35,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:35:35,532 INFO L87 Difference]: Start difference. First operand has 3388 states, 2034 states have (on average 1.316125860373648) internal successors, (2677), 2141 states have internal predecessors, (2677), 1074 states have call successors, (1074), 249 states have call predecessors, (1074), 248 states have return successors, (1066), 1057 states have call predecessors, (1066), 1066 states have call successors, (1066) Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 03:35:38,888 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 03:35:41,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:35:43,254 WARN L534 Checker$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 03:35:45,594 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:35:47,721 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:35:52,733 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:35:57,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:36:01,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:36:01,535 INFO L93 Difference]: Finished difference Result 9911 states and 14717 transitions. [2021-11-23 03:36:01,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:36:01,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 38 [2021-11-23 03:36:01,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:36:01,615 INFO L225 Difference]: With dead ends: 9911 [2021-11-23 03:36:01,615 INFO L226 Difference]: Without dead ends: 6522 [2021-11-23 03:36:01,659 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 03:36:01,662 INFO L933 BasicCegarLoop]: 5306 mSDtfsCounter, 4485 mSDsluCounter, 10637 mSDsCounter, 0 mSdLazyCounter, 1803 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4497 SdHoareTripleChecker+Valid, 14764 SdHoareTripleChecker+Invalid, 1811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1803 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:36:01,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4497 Valid, 14764 Invalid, 1811 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1803 Invalid, 7 Unknown, 0 Unchecked, 25.2s Time] [2021-11-23 03:36:01,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6522 states. [2021-11-23 03:36:02,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6522 to 6331. [2021-11-23 03:36:02,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6331 states, 3812 states have (on average 1.2932843651626442) internal successors, (4930), 3987 states have internal predecessors, (4930), 2010 states have call successors, (2010), 475 states have call predecessors, (2010), 473 states have return successors, (2071), 1986 states have call predecessors, (2071), 2008 states have call successors, (2071) [2021-11-23 03:36:02,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6331 states to 6331 states and 9011 transitions. [2021-11-23 03:36:02,259 INFO L78 Accepts]: Start accepts. Automaton has 6331 states and 9011 transitions. Word has length 38 [2021-11-23 03:36:02,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:36:02,260 INFO L470 AbstractCegarLoop]: Abstraction has 6331 states and 9011 transitions. [2021-11-23 03:36:02,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 03:36:02,261 INFO L276 IsEmpty]: Start isEmpty. Operand 6331 states and 9011 transitions. [2021-11-23 03:36:02,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 03:36:02,272 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:36:02,272 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:36:02,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:36:02,273 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-11-23 03:36:02,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:36:02,276 INFO L85 PathProgramCache]: Analyzing trace with hash -162049647, now seen corresponding path program 1 times [2021-11-23 03:36:02,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:36:02,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678562218] [2021-11-23 03:36:02,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:36:02,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:36:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:36:02,774 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 03:36:02,774 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:36:02,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678562218] [2021-11-23 03:36:02,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678562218] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:36:02,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:36:02,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:36:02,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863590599] [2021-11-23 03:36:02,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:36:02,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:36:02,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:36:02,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:36:02,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:36:02,780 INFO L87 Difference]: Start difference. First operand 6331 states and 9011 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-23 03:36:05,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:36:07,996 WARN L534 Checker$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 03:36:10,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:36:12,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:36:18,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:36:20,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:36:23,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:36:25,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:36:25,290 INFO L93 Difference]: Finished difference Result 12552 states and 18073 transitions. [2021-11-23 03:36:25,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:36:25,291 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 43 [2021-11-23 03:36:25,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:36:25,410 INFO L225 Difference]: With dead ends: 12552 [2021-11-23 03:36:25,410 INFO L226 Difference]: Without dead ends: 12550 [2021-11-23 03:36:25,419 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 03:36:25,420 INFO L933 BasicCegarLoop]: 5207 mSDtfsCounter, 4571 mSDsluCounter, 10478 mSDsCounter, 0 mSdLazyCounter, 1777 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4583 SdHoareTripleChecker+Valid, 14518 SdHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1777 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:36:25,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4583 Valid, 14518 Invalid, 1786 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1777 Invalid, 6 Unknown, 0 Unchecked, 22.0s Time] [2021-11-23 03:36:25,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12550 states. [2021-11-23 03:36:26,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12550 to 12354. [2021-11-23 03:36:26,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12354 states, 7446 states have (on average 1.2949234488315875) internal successors, (9642), 7762 states have internal predecessors, (9642), 3943 states have call successors, (3943), 932 states have call predecessors, (3943), 929 states have return successors, (4284), 3891 states have call predecessors, (4284), 3941 states have call successors, (4284) [2021-11-23 03:36:26,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12354 states to 12354 states and 17869 transitions. [2021-11-23 03:36:26,129 INFO L78 Accepts]: Start accepts. Automaton has 12354 states and 17869 transitions. Word has length 43 [2021-11-23 03:36:26,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:36:26,129 INFO L470 AbstractCegarLoop]: Abstraction has 12354 states and 17869 transitions. [2021-11-23 03:36:26,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-23 03:36:26,131 INFO L276 IsEmpty]: Start isEmpty. Operand 12354 states and 17869 transitions. [2021-11-23 03:36:26,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 03:36:26,136 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:36:26,137 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:36:26,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:36:26,138 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_drivers_base_class__double_registrationErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-11-23 03:36:26,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:36:26,138 INFO L85 PathProgramCache]: Analyzing trace with hash -296196049, now seen corresponding path program 1 times [2021-11-23 03:36:26,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:36:26,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362807413] [2021-11-23 03:36:26,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:36:26,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:36:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:36:26,429 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 03:36:26,429 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:36:26,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362807413] [2021-11-23 03:36:26,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362807413] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:36:26,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:36:26,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:36:26,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072731664] [2021-11-23 03:36:26,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:36:26,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:36:26,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:36:26,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:36:26,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:36:26,431 INFO L87 Difference]: Start difference. First operand 12354 states and 17869 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 03:36:29,582 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 03:36:31,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:36:33,965 WARN L534 Checker$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 03:36:43,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:36:45,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:36:45,692 INFO L93 Difference]: Finished difference Result 20024 states and 28593 transitions. [2021-11-23 03:36:45,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:36:45,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 43 [2021-11-23 03:36:45,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:36:45,835 INFO L225 Difference]: With dead ends: 20024 [2021-11-23 03:36:45,835 INFO L226 Difference]: Without dead ends: 20022 [2021-11-23 03:36:45,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 03:36:45,851 INFO L933 BasicCegarLoop]: 4959 mSDtfsCounter, 4509 mSDsluCounter, 14098 mSDsCounter, 0 mSdLazyCounter, 2257 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4519 SdHoareTripleChecker+Valid, 17434 SdHoareTripleChecker+Invalid, 2263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2257 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:36:45,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4519 Valid, 17434 Invalid, 2263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2257 Invalid, 4 Unknown, 0 Unchecked, 18.6s Time] [2021-11-23 03:36:45,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20022 states. [2021-11-23 03:36:46,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20022 to 19788. [2021-11-23 03:36:46,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19788 states, 11739 states have (on average 1.2782179061248828) internal successors, (15005), 12242 states have internal predecessors, (15005), 6323 states have call successors, (6323), 1694 states have call predecessors, (6323), 1691 states have return successors, (7013), 6227 states have call predecessors, (7013), 6321 states have call successors, (7013) [2021-11-23 03:36:47,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19788 states to 19788 states and 28341 transitions. [2021-11-23 03:36:47,106 INFO L78 Accepts]: Start accepts. Automaton has 19788 states and 28341 transitions. Word has length 43 [2021-11-23 03:36:47,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:36:47,107 INFO L470 AbstractCegarLoop]: Abstraction has 19788 states and 28341 transitions. [2021-11-23 03:36:47,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 03:36:47,108 INFO L276 IsEmpty]: Start isEmpty. Operand 19788 states and 28341 transitions. [2021-11-23 03:36:47,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 03:36:47,109 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:36:47,110 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:36:47,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:36:47,110 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-11-23 03:36:47,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:36:47,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1650392270, now seen corresponding path program 1 times [2021-11-23 03:36:47,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:36:47,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287097819] [2021-11-23 03:36:47,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:36:47,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:36:47,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:36:47,380 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 03:36:47,380 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:36:47,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287097819] [2021-11-23 03:36:47,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287097819] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:36:47,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:36:47,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:36:47,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389358764] [2021-11-23 03:36:47,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:36:47,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:36:47,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:36:47,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:36:47,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:36:47,383 INFO L87 Difference]: Start difference. First operand 19788 states and 28341 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-23 03:36:50,152 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 03:36:52,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:36:54,414 WARN L534 Checker$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 03:37:00,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:37:02,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:37:02,340 INFO L93 Difference]: Finished difference Result 20453 states and 29122 transitions. [2021-11-23 03:37:02,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:37:02,340 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 48 [2021-11-23 03:37:02,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:37:02,437 INFO L225 Difference]: With dead ends: 20453 [2021-11-23 03:37:02,437 INFO L226 Difference]: Without dead ends: 20451 [2021-11-23 03:37:02,449 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 03:37:02,450 INFO L933 BasicCegarLoop]: 4296 mSDtfsCounter, 4502 mSDsluCounter, 5729 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4513 SdHoareTripleChecker+Valid, 9298 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:37:02,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4513 Valid, 9298 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1321 Invalid, 4 Unknown, 0 Unchecked, 14.3s Time] [2021-11-23 03:37:02,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20451 states. [2021-11-23 03:37:03,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20451 to 20445. [2021-11-23 03:37:03,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20445 states, 12103 states have (on average 1.2746426505825001) internal successors, (15427), 12613 states have internal predecessors, (15427), 6494 states have call successors, (6494), 1815 states have call predecessors, (6494), 1814 states have return successors, (7196), 6398 states have call predecessors, (7196), 6492 states have call successors, (7196) [2021-11-23 03:37:03,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20445 states to 20445 states and 29117 transitions. [2021-11-23 03:37:03,622 INFO L78 Accepts]: Start accepts. Automaton has 20445 states and 29117 transitions. Word has length 48 [2021-11-23 03:37:03,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:37:03,622 INFO L470 AbstractCegarLoop]: Abstraction has 20445 states and 29117 transitions. [2021-11-23 03:37:03,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-23 03:37:03,623 INFO L276 IsEmpty]: Start isEmpty. Operand 20445 states and 29117 transitions. [2021-11-23 03:37:03,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-23 03:37:03,624 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:37:03,624 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:37:03,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 03:37:03,625 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-11-23 03:37:03,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:37:03,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1383570208, now seen corresponding path program 1 times [2021-11-23 03:37:03,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:37:03,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421376220] [2021-11-23 03:37:03,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:37:03,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:37:03,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:37:03,835 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 03:37:03,836 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:37:03,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421376220] [2021-11-23 03:37:03,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421376220] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:37:03,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:37:03,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:37:03,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829529599] [2021-11-23 03:37:03,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:37:03,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:37:03,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:37:03,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:37:03,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:37:03,838 INFO L87 Difference]: Start difference. First operand 20445 states and 29117 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-23 03:37:06,612 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 03:37:08,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:37:10,859 WARN L534 Checker$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 03:37:18,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:37:18,413 INFO L93 Difference]: Finished difference Result 20574 states and 29252 transitions. [2021-11-23 03:37:18,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:37:18,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 53 [2021-11-23 03:37:18,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:37:18,514 INFO L225 Difference]: With dead ends: 20574 [2021-11-23 03:37:18,515 INFO L226 Difference]: Without dead ends: 20572 [2021-11-23 03:37:18,525 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 03:37:18,525 INFO L933 BasicCegarLoop]: 4283 mSDtfsCounter, 4535 mSDsluCounter, 5624 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4545 SdHoareTripleChecker+Valid, 9198 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2021-11-23 03:37:18,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4545 Valid, 9198 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1302 Invalid, 3 Unknown, 0 Unchecked, 13.9s Time] [2021-11-23 03:37:18,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20572 states. [2021-11-23 03:37:19,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20572 to 20566. [2021-11-23 03:37:19,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20566 states, 12167 states have (on average 1.273691131749815) internal successors, (15497), 12676 states have internal predecessors, (15497), 6524 states have call successors, (6524), 1843 states have call predecessors, (6524), 1842 states have return successors, (7226), 6428 states have call predecessors, (7226), 6522 states have call successors, (7226) [2021-11-23 03:37:19,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20566 states to 20566 states and 29247 transitions. [2021-11-23 03:37:19,635 INFO L78 Accepts]: Start accepts. Automaton has 20566 states and 29247 transitions. Word has length 53 [2021-11-23 03:37:19,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:37:19,635 INFO L470 AbstractCegarLoop]: Abstraction has 20566 states and 29247 transitions. [2021-11-23 03:37:19,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-23 03:37:19,636 INFO L276 IsEmpty]: Start isEmpty. Operand 20566 states and 29247 transitions. [2021-11-23 03:37:19,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-23 03:37:19,636 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:37:19,637 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:37:19,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 03:37:19,637 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-11-23 03:37:19,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:37:19,638 INFO L85 PathProgramCache]: Analyzing trace with hash 204215587, now seen corresponding path program 1 times [2021-11-23 03:37:19,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:37:19,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762285586] [2021-11-23 03:37:19,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:37:19,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:37:19,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:37:19,859 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-23 03:37:19,859 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:37:19,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762285586] [2021-11-23 03:37:19,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762285586] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:37:19,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:37:19,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:37:19,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863750744] [2021-11-23 03:37:19,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:37:19,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:37:19,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:37:19,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:37:19,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:37:19,861 INFO L87 Difference]: Start difference. First operand 20566 states and 29247 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-23 03:37:22,841 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:37:25,064 WARN L534 Checker$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 03:37:27,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:37:29,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:37:36,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:37:38,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:37:38,765 INFO L93 Difference]: Finished difference Result 20572 states and 29250 transitions. [2021-11-23 03:37:38,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:37:38,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 53 [2021-11-23 03:37:38,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:37:38,863 INFO L225 Difference]: With dead ends: 20572 [2021-11-23 03:37:38,863 INFO L226 Difference]: Without dead ends: 20570 [2021-11-23 03:37:38,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 03:37:38,874 INFO L933 BasicCegarLoop]: 4290 mSDtfsCounter, 4498 mSDsluCounter, 10601 mSDsCounter, 0 mSdLazyCounter, 1919 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4508 SdHoareTripleChecker+Valid, 13573 SdHoareTripleChecker+Invalid, 1923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1919 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:37:38,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4508 Valid, 13573 Invalid, 1923 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1919 Invalid, 4 Unknown, 0 Unchecked, 18.3s Time] [2021-11-23 03:37:38,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20570 states. [2021-11-23 03:37:39,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20570 to 20564. [2021-11-23 03:37:39,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20564 states, 12166 states have (on average 1.2730560578661845) internal successors, (15488), 12674 states have internal predecessors, (15488), 6524 states have call successors, (6524), 1843 states have call predecessors, (6524), 1842 states have return successors, (7226), 6428 states have call predecessors, (7226), 6522 states have call successors, (7226) [2021-11-23 03:37:40,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20564 states to 20564 states and 29238 transitions. [2021-11-23 03:37:40,185 INFO L78 Accepts]: Start accepts. Automaton has 20564 states and 29238 transitions. Word has length 53 [2021-11-23 03:37:40,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:37:40,188 INFO L470 AbstractCegarLoop]: Abstraction has 20564 states and 29238 transitions. [2021-11-23 03:37:40,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-23 03:37:40,189 INFO L276 IsEmpty]: Start isEmpty. Operand 20564 states and 29238 transitions. [2021-11-23 03:37:40,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 03:37:40,191 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:37:40,192 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:37:40,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 03:37:40,192 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_drivers_base_class_destroy_classErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-11-23 03:37:40,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:37:40,193 INFO L85 PathProgramCache]: Analyzing trace with hash -782414679, now seen corresponding path program 1 times [2021-11-23 03:37:40,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:37:40,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694317491] [2021-11-23 03:37:40,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:37:40,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:37:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:37:40,494 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 03:37:40,494 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:37:40,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694317491] [2021-11-23 03:37:40,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694317491] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:37:40,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:37:40,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 03:37:40,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251074850] [2021-11-23 03:37:40,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:37:40,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 03:37:40,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:37:40,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 03:37:40,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:37:40,496 INFO L87 Difference]: Start difference. First operand 20564 states and 29238 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-23 03:37:44,233 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 03:37:46,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:37:49,055 WARN L534 Checker$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 03:37:53,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:38:00,376 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:38:03,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:38:03,489 INFO L93 Difference]: Finished difference Result 27758 states and 39083 transitions. [2021-11-23 03:38:03,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:38:03,490 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 56 [2021-11-23 03:38:03,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:38:03,608 INFO L225 Difference]: With dead ends: 27758 [2021-11-23 03:38:03,608 INFO L226 Difference]: Without dead ends: 27448 [2021-11-23 03:38:03,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-23 03:38:03,624 INFO L933 BasicCegarLoop]: 4716 mSDtfsCounter, 4227 mSDsluCounter, 18846 mSDsCounter, 0 mSdLazyCounter, 2861 mSolverCounterSat, 52 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4235 SdHoareTripleChecker+Valid, 21396 SdHoareTripleChecker+Invalid, 2917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2861 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:38:03,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4235 Valid, 21396 Invalid, 2917 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [52 Valid, 2861 Invalid, 4 Unknown, 0 Unchecked, 22.0s Time] [2021-11-23 03:38:03,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27448 states. [2021-11-23 03:38:04,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27448 to 19928. [2021-11-23 03:38:04,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19928 states, 11810 states have (on average 1.2728196443691786) internal successors, (15032), 12294 states have internal predecessors, (15032), 6256 states have call successors, (6256), 1831 states have call predecessors, (6256), 1830 states have return successors, (6916), 6156 states have call predecessors, (6916), 6254 states have call successors, (6916) [2021-11-23 03:38:04,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19928 states to 19928 states and 28204 transitions. [2021-11-23 03:38:04,858 INFO L78 Accepts]: Start accepts. Automaton has 19928 states and 28204 transitions. Word has length 56 [2021-11-23 03:38:04,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:38:04,859 INFO L470 AbstractCegarLoop]: Abstraction has 19928 states and 28204 transitions. [2021-11-23 03:38:04,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-23 03:38:04,859 INFO L276 IsEmpty]: Start isEmpty. Operand 19928 states and 28204 transitions. [2021-11-23 03:38:04,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-23 03:38:04,860 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:38:04,861 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:38:04,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 03:38:04,861 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-11-23 03:38:04,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:38:04,862 INFO L85 PathProgramCache]: Analyzing trace with hash 474558947, now seen corresponding path program 1 times [2021-11-23 03:38:04,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:38:04,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499600865] [2021-11-23 03:38:04,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:38:04,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:38:04,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:38:05,047 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 03:38:05,047 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:38:05,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499600865] [2021-11-23 03:38:05,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499600865] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:38:05,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:38:05,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:38:05,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927586080] [2021-11-23 03:38:05,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:38:05,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:38:05,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:38:05,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:38:05,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:38:05,050 INFO L87 Difference]: Start difference. First operand 19928 states and 28204 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-23 03:38:08,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:38:10,254 WARN L534 Checker$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 03:38:12,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:38:14,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:38:23,584 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:38:25,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:38:25,784 INFO L93 Difference]: Finished difference Result 27456 states and 38748 transitions. [2021-11-23 03:38:25,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:38:25,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 58 [2021-11-23 03:38:25,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:38:25,932 INFO L225 Difference]: With dead ends: 27456 [2021-11-23 03:38:25,932 INFO L226 Difference]: Without dead ends: 27454 [2021-11-23 03:38:25,950 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 03:38:25,951 INFO L933 BasicCegarLoop]: 4959 mSDtfsCounter, 4528 mSDsluCounter, 8429 mSDsCounter, 0 mSdLazyCounter, 1615 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4540 SdHoareTripleChecker+Valid, 12403 SdHoareTripleChecker+Invalid, 1622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1615 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:38:25,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4540 Valid, 12403 Invalid, 1622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1615 Invalid, 5 Unknown, 0 Unchecked, 19.6s Time] [2021-11-23 03:38:25,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27454 states. [2021-11-23 03:38:27,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27454 to 27292. [2021-11-23 03:38:27,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27292 states, 16059 states have (on average 1.266579488137493) internal successors, (20340), 16721 states have internal predecessors, (20340), 8618 states have call successors, (8618), 2586 states have call predecessors, (8618), 2583 states have return successors, (9624), 8478 states have call predecessors, (9624), 8616 states have call successors, (9624) [2021-11-23 03:38:27,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27292 states to 27292 states and 38582 transitions. [2021-11-23 03:38:27,692 INFO L78 Accepts]: Start accepts. Automaton has 27292 states and 38582 transitions. Word has length 58 [2021-11-23 03:38:27,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:38:27,693 INFO L470 AbstractCegarLoop]: Abstraction has 27292 states and 38582 transitions. [2021-11-23 03:38:27,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-23 03:38:27,693 INFO L276 IsEmpty]: Start isEmpty. Operand 27292 states and 38582 transitions. [2021-11-23 03:38:27,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 03:38:27,695 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:38:27,695 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:38:27,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 03:38:27,696 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_usb_gadget_destroy_classErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-11-23 03:38:27,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:38:27,696 INFO L85 PathProgramCache]: Analyzing trace with hash 779912008, now seen corresponding path program 1 times [2021-11-23 03:38:27,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:38:27,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183554740] [2021-11-23 03:38:27,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:38:27,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:38:27,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:38:27,897 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 03:38:27,897 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:38:27,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183554740] [2021-11-23 03:38:27,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183554740] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:38:27,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:38:27,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:38:27,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143642141] [2021-11-23 03:38:27,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:38:27,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:38:27,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:38:27,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:38:27,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:38:27,901 INFO L87 Difference]: Start difference. First operand 27292 states and 38582 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-23 03:38:31,030 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 03:38:33,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:38:35,457 WARN L534 Checker$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 03:38:37,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:38:43,592 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:38:45,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:38:45,247 INFO L93 Difference]: Finished difference Result 27328 states and 38626 transitions. [2021-11-23 03:38:45,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:38:45,248 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2021-11-23 03:38:45,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:38:45,347 INFO L225 Difference]: With dead ends: 27328 [2021-11-23 03:38:45,347 INFO L226 Difference]: Without dead ends: 27326 [2021-11-23 03:38:45,360 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 03:38:45,361 INFO L933 BasicCegarLoop]: 4301 mSDtfsCounter, 4490 mSDsluCounter, 5736 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4501 SdHoareTripleChecker+Valid, 9308 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:38:45,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4501 Valid, 9308 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1325 Invalid, 5 Unknown, 0 Unchecked, 16.2s Time] [2021-11-23 03:38:45,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27326 states. [2021-11-23 03:38:46,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27326 to 27296. [2021-11-23 03:38:46,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27296 states, 16061 states have (on average 1.2657991407757923) internal successors, (20330), 16725 states have internal predecessors, (20330), 8618 states have call successors, (8618), 2586 states have call predecessors, (8618), 2586 states have return successors, (9630), 8478 states have call predecessors, (9630), 8616 states have call successors, (9630) [2021-11-23 03:38:46,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27296 states to 27296 states and 38578 transitions. [2021-11-23 03:38:46,880 INFO L78 Accepts]: Start accepts. Automaton has 27296 states and 38578 transitions. Word has length 61 [2021-11-23 03:38:46,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:38:46,881 INFO L470 AbstractCegarLoop]: Abstraction has 27296 states and 38578 transitions. [2021-11-23 03:38:46,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-23 03:38:46,881 INFO L276 IsEmpty]: Start isEmpty. Operand 27296 states and 38578 transitions. [2021-11-23 03:38:46,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-23 03:38:46,883 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:38:46,883 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:38:46,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 03:38:46,884 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-11-23 03:38:46,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:38:46,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1995136220, now seen corresponding path program 1 times [2021-11-23 03:38:46,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:38:46,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537571574] [2021-11-23 03:38:46,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:38:46,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:38:46,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:38:47,073 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 03:38:47,074 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:38:47,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537571574] [2021-11-23 03:38:47,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537571574] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:38:47,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:38:47,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:38:47,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548231822] [2021-11-23 03:38:47,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:38:47,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:38:47,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:38:47,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:38:47,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:38:47,077 INFO L87 Difference]: Start difference. First operand 27296 states and 38578 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-23 03:38:49,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:38:52,125 WARN L534 Checker$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 03:38:54,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:38:55,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:39:02,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:39:04,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:39:04,031 INFO L93 Difference]: Finished difference Result 27302 states and 38581 transitions. [2021-11-23 03:39:04,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:39:04,032 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 63 [2021-11-23 03:39:04,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:39:04,117 INFO L225 Difference]: With dead ends: 27302 [2021-11-23 03:39:04,117 INFO L226 Difference]: Without dead ends: 27300 [2021-11-23 03:39:04,128 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 03:39:04,129 INFO L933 BasicCegarLoop]: 4289 mSDtfsCounter, 4492 mSDsluCounter, 5722 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4503 SdHoareTripleChecker+Valid, 9284 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2021-11-23 03:39:04,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4503 Valid, 9284 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1319 Invalid, 4 Unknown, 0 Unchecked, 15.9s Time] [2021-11-23 03:39:04,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27300 states. [2021-11-23 03:39:05,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27300 to 27294. [2021-11-23 03:39:05,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27294 states, 16060 states have (on average 1.2657534246575342) internal successors, (20328), 16723 states have internal predecessors, (20328), 8618 states have call successors, (8618), 2586 states have call predecessors, (8618), 2586 states have return successors, (9630), 8478 states have call predecessors, (9630), 8616 states have call successors, (9630) [2021-11-23 03:39:05,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27294 states to 27294 states and 38576 transitions. [2021-11-23 03:39:05,724 INFO L78 Accepts]: Start accepts. Automaton has 27294 states and 38576 transitions. Word has length 63 [2021-11-23 03:39:05,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:39:05,724 INFO L470 AbstractCegarLoop]: Abstraction has 27294 states and 38576 transitions. [2021-11-23 03:39:05,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-23 03:39:05,724 INFO L276 IsEmpty]: Start isEmpty. Operand 27294 states and 38576 transitions. [2021-11-23 03:39:05,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-23 03:39:05,726 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:39:05,726 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:39:05,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 03:39:05,726 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-11-23 03:39:05,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:39:05,727 INFO L85 PathProgramCache]: Analyzing trace with hash 592342523, now seen corresponding path program 1 times [2021-11-23 03:39:05,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:39:05,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515589234] [2021-11-23 03:39:05,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:39:05,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:39:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:39:05,877 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 03:39:05,877 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:39:05,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515589234] [2021-11-23 03:39:05,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515589234] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:39:05,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:39:05,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:39:05,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723573917] [2021-11-23 03:39:05,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:39:05,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:39:05,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:39:05,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:39:05,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:39:05,880 INFO L87 Difference]: Start difference. First operand 27294 states and 38576 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-23 03:39:08,549 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 03:39:10,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:39:12,985 WARN L534 Checker$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 03:39:19,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:39:21,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:39:21,543 INFO L93 Difference]: Finished difference Result 27300 states and 38579 transitions. [2021-11-23 03:39:21,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:39:21,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 68 [2021-11-23 03:39:21,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:39:21,619 INFO L225 Difference]: With dead ends: 27300 [2021-11-23 03:39:21,619 INFO L226 Difference]: Without dead ends: 27298 [2021-11-23 03:39:21,629 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 03:39:21,629 INFO L933 BasicCegarLoop]: 4295 mSDtfsCounter, 4489 mSDsluCounter, 5731 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4500 SdHoareTripleChecker+Valid, 9296 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:39:21,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4500 Valid, 9296 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1325 Invalid, 4 Unknown, 0 Unchecked, 14.5s Time] [2021-11-23 03:39:21,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27298 states. [2021-11-23 03:39:22,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27298 to 27292. [2021-11-23 03:39:22,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27292 states, 16059 states have (on average 1.2657077028457562) internal successors, (20326), 16721 states have internal predecessors, (20326), 8618 states have call successors, (8618), 2586 states have call predecessors, (8618), 2586 states have return successors, (9630), 8478 states have call predecessors, (9630), 8616 states have call successors, (9630) [2021-11-23 03:39:22,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27292 states to 27292 states and 38574 transitions. [2021-11-23 03:39:22,893 INFO L78 Accepts]: Start accepts. Automaton has 27292 states and 38574 transitions. Word has length 68 [2021-11-23 03:39:22,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:39:22,893 INFO L470 AbstractCegarLoop]: Abstraction has 27292 states and 38574 transitions. [2021-11-23 03:39:22,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-23 03:39:22,894 INFO L276 IsEmpty]: Start isEmpty. Operand 27292 states and 38574 transitions. [2021-11-23 03:39:22,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-23 03:39:22,895 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:39:22,896 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:39:22,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 03:39:22,896 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-11-23 03:39:22,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:39:22,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1684089448, now seen corresponding path program 1 times [2021-11-23 03:39:22,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:39:22,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669289427] [2021-11-23 03:39:22,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:39:22,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:39:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:39:23,061 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 03:39:23,061 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:39:23,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669289427] [2021-11-23 03:39:23,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669289427] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:39:23,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:39:23,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:39:23,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326119043] [2021-11-23 03:39:23,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:39:23,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:39:23,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:39:23,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:39:23,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:39:23,064 INFO L87 Difference]: Start difference. First operand 27292 states and 38574 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 03:39:25,859 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 03:39:28,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:39:30,281 WARN L534 Checker$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 03:39:31,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:39:37,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:39:39,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:39:39,072 INFO L93 Difference]: Finished difference Result 27298 states and 38577 transitions. [2021-11-23 03:39:39,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:39:39,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 73 [2021-11-23 03:39:39,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:39:39,160 INFO L225 Difference]: With dead ends: 27298 [2021-11-23 03:39:39,160 INFO L226 Difference]: Without dead ends: 27296 [2021-11-23 03:39:39,171 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 03:39:39,172 INFO L933 BasicCegarLoop]: 4293 mSDtfsCounter, 4490 mSDsluCounter, 5725 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4501 SdHoareTripleChecker+Valid, 9288 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2021-11-23 03:39:39,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4501 Valid, 9288 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1325 Invalid, 4 Unknown, 0 Unchecked, 14.7s Time] [2021-11-23 03:39:39,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27296 states. [2021-11-23 03:39:40,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27296 to 27290. [2021-11-23 03:39:40,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27290 states, 16058 states have (on average 1.2656619753393947) internal successors, (20324), 16719 states have internal predecessors, (20324), 8618 states have call successors, (8618), 2586 states have call predecessors, (8618), 2586 states have return successors, (9630), 8478 states have call predecessors, (9630), 8616 states have call successors, (9630) [2021-11-23 03:39:40,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27290 states to 27290 states and 38572 transitions. [2021-11-23 03:39:40,670 INFO L78 Accepts]: Start accepts. Automaton has 27290 states and 38572 transitions. Word has length 73 [2021-11-23 03:39:40,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:39:40,670 INFO L470 AbstractCegarLoop]: Abstraction has 27290 states and 38572 transitions. [2021-11-23 03:39:40,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 03:39:40,670 INFO L276 IsEmpty]: Start isEmpty. Operand 27290 states and 38572 transitions. [2021-11-23 03:39:40,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-23 03:39:40,672 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:39:40,672 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:39:40,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 03:39:40,672 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-11-23 03:39:40,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:39:40,673 INFO L85 PathProgramCache]: Analyzing trace with hash -792479989, now seen corresponding path program 1 times [2021-11-23 03:39:40,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:39:40,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781378186] [2021-11-23 03:39:40,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:39:40,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:39:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:39:40,822 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 03:39:40,822 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:39:40,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781378186] [2021-11-23 03:39:40,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781378186] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:39:40,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:39:40,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:39:40,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108274329] [2021-11-23 03:39:40,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:39:40,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:39:40,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:39:40,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:39:40,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:39:40,825 INFO L87 Difference]: Start difference. First operand 27290 states and 38572 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 03:39:43,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:39:45,955 WARN L534 Checker$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 03:39:48,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:39:50,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:39:55,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:39:57,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:39:57,411 INFO L93 Difference]: Finished difference Result 27296 states and 38575 transitions. [2021-11-23 03:39:57,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:39:57,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 75 [2021-11-23 03:39:57,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:39:57,492 INFO L225 Difference]: With dead ends: 27296 [2021-11-23 03:39:57,492 INFO L226 Difference]: Without dead ends: 27294 [2021-11-23 03:39:57,504 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 03:39:57,505 INFO L933 BasicCegarLoop]: 4283 mSDtfsCounter, 4481 mSDsluCounter, 5716 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4494 SdHoareTripleChecker+Valid, 9273 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:39:57,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4494 Valid, 9273 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1317 Invalid, 5 Unknown, 0 Unchecked, 15.4s Time] [2021-11-23 03:39:57,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27294 states. [2021-11-23 03:39:58,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27294 to 27288. [2021-11-23 03:39:58,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27288 states, 16057 states have (on average 1.2656162421373855) internal successors, (20322), 16717 states have internal predecessors, (20322), 8618 states have call successors, (8618), 2586 states have call predecessors, (8618), 2586 states have return successors, (9630), 8478 states have call predecessors, (9630), 8616 states have call successors, (9630) [2021-11-23 03:39:58,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27288 states to 27288 states and 38570 transitions. [2021-11-23 03:39:58,913 INFO L78 Accepts]: Start accepts. Automaton has 27288 states and 38570 transitions. Word has length 75 [2021-11-23 03:39:58,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:39:58,913 INFO L470 AbstractCegarLoop]: Abstraction has 27288 states and 38570 transitions. [2021-11-23 03:39:58,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 03:39:58,914 INFO L276 IsEmpty]: Start isEmpty. Operand 27288 states and 38570 transitions. [2021-11-23 03:39:58,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-23 03:39:58,915 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:39:58,916 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:39:58,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-23 03:39:58,916 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_net_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-11-23 03:39:58,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:39:58,916 INFO L85 PathProgramCache]: Analyzing trace with hash 310027568, now seen corresponding path program 1 times [2021-11-23 03:39:58,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:39:58,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516797676] [2021-11-23 03:39:58,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:39:58,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:39:58,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:39:59,063 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-11-23 03:39:59,063 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:39:59,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516797676] [2021-11-23 03:39:59,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516797676] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:39:59,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:39:59,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:39:59,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212551085] [2021-11-23 03:39:59,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:39:59,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:39:59,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:39:59,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:39:59,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:39:59,066 INFO L87 Difference]: Start difference. First operand 27288 states and 38570 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-23 03:40:01,489 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 03:40:03,748 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:05,791 WARN L534 Checker$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 03:40:10,513 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:40:11,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:40:11,772 INFO L93 Difference]: Finished difference Result 49186 states and 69106 transitions. [2021-11-23 03:40:11,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:40:11,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 94 [2021-11-23 03:40:11,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:40:11,858 INFO L225 Difference]: With dead ends: 49186 [2021-11-23 03:40:11,858 INFO L226 Difference]: Without dead ends: 27268 [2021-11-23 03:40:11,976 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 03:40:11,977 INFO L933 BasicCegarLoop]: 4287 mSDtfsCounter, 4492 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4501 SdHoareTripleChecker+Valid, 4993 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:40:11,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4501 Valid, 4993 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 732 Invalid, 4 Unknown, 0 Unchecked, 11.2s Time] [2021-11-23 03:40:12,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27268 states. [2021-11-23 03:40:13,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27268 to 27262. [2021-11-23 03:40:13,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27262 states, 16032 states have (on average 1.2645334331337326) internal successors, (20273), 16691 states have internal predecessors, (20273), 8618 states have call successors, (8618), 2586 states have call predecessors, (8618), 2586 states have return successors, (9630), 8478 states have call predecessors, (9630), 8616 states have call successors, (9630) [2021-11-23 03:40:13,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27262 states to 27262 states and 38521 transitions. [2021-11-23 03:40:13,712 INFO L78 Accepts]: Start accepts. Automaton has 27262 states and 38521 transitions. Word has length 94 [2021-11-23 03:40:13,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:40:13,716 INFO L470 AbstractCegarLoop]: Abstraction has 27262 states and 38521 transitions. [2021-11-23 03:40:13,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-23 03:40:13,716 INFO L276 IsEmpty]: Start isEmpty. Operand 27262 states and 38521 transitions. [2021-11-23 03:40:13,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-23 03:40:13,718 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:40:13,719 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:40:13,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-23 03:40:13,719 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-11-23 03:40:13,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:40:13,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1872168984, now seen corresponding path program 1 times [2021-11-23 03:40:13,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:40:13,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690865896] [2021-11-23 03:40:13,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:40:13,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:40:13,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:40:13,940 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-23 03:40:13,940 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:40:13,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690865896] [2021-11-23 03:40:13,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690865896] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:40:13,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:40:13,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:40:13,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878727099] [2021-11-23 03:40:13,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:40:13,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:40:13,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:40:13,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:40:13,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:40:13,942 INFO L87 Difference]: Start difference. First operand 27262 states and 38521 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-23 03:40:17,257 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 03:40:19,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:21,655 WARN L534 Checker$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 03:40:24,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:40:30,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:40:32,237 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:36,304 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:40:38,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:40:40,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:40:43,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:40:43,404 INFO L93 Difference]: Finished difference Result 38481 states and 54360 transitions. [2021-11-23 03:40:43,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 03:40:43,405 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 103 [2021-11-23 03:40:43,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:40:43,711 INFO L225 Difference]: With dead ends: 38481 [2021-11-23 03:40:43,711 INFO L226 Difference]: Without dead ends: 38479 [2021-11-23 03:40:43,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:40:43,730 INFO L933 BasicCegarLoop]: 5044 mSDtfsCounter, 4415 mSDsluCounter, 14377 mSDsCounter, 0 mSdLazyCounter, 2402 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4423 SdHoareTripleChecker+Valid, 17700 SdHoareTripleChecker+Invalid, 2410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2402 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:40:43,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4423 Valid, 17700 Invalid, 2410 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 2402 Invalid, 6 Unknown, 0 Unchecked, 27.5s Time] [2021-11-23 03:40:43,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38479 states. [2021-11-23 03:40:45,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38479 to 38237. [2021-11-23 03:40:45,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38237 states, 22356 states have (on average 1.2556360708534622) internal successors, (28071), 23296 states have internal predecessors, (28071), 11882 states have call successors, (11882), 3998 states have call predecessors, (11882), 3973 states have return successors, (14131), 11620 states have call predecessors, (14131), 11880 states have call successors, (14131) [2021-11-23 03:40:45,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38237 states to 38237 states and 54084 transitions. [2021-11-23 03:40:45,870 INFO L78 Accepts]: Start accepts. Automaton has 38237 states and 54084 transitions. Word has length 103 [2021-11-23 03:40:45,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:40:45,870 INFO L470 AbstractCegarLoop]: Abstraction has 38237 states and 54084 transitions. [2021-11-23 03:40:45,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-23 03:40:45,870 INFO L276 IsEmpty]: Start isEmpty. Operand 38237 states and 54084 transitions. [2021-11-23 03:40:45,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-23 03:40:45,872 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:40:45,872 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:40:45,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-23 03:40:45,873 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_drivers_base_class_destroy_classErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-11-23 03:40:45,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:40:45,873 INFO L85 PathProgramCache]: Analyzing trace with hash 363754100, now seen corresponding path program 1 times [2021-11-23 03:40:45,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:40:45,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572083323] [2021-11-23 03:40:45,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:40:45,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:40:46,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:40:46,478 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-11-23 03:40:46,478 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:40:46,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572083323] [2021-11-23 03:40:46,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572083323] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:40:46,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:40:46,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 03:40:46,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640584509] [2021-11-23 03:40:46,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:40:46,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 03:40:46,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:40:46,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 03:40:46,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-23 03:40:46,480 INFO L87 Difference]: Start difference. First operand 38237 states and 54084 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-23 03:40:51,304 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:53,801 WARN L534 Checker$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 03:40:55,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:40:58,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:41:09,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:41:15,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:41:15,942 INFO L93 Difference]: Finished difference Result 81199 states and 114491 transitions. [2021-11-23 03:41:15,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 03:41:15,942 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 78 [2021-11-23 03:41:15,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:41:16,169 INFO L225 Difference]: With dead ends: 81199 [2021-11-23 03:41:16,169 INFO L226 Difference]: Without dead ends: 58589 [2021-11-23 03:41:16,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-23 03:41:16,256 INFO L933 BasicCegarLoop]: 4859 mSDtfsCounter, 4699 mSDsluCounter, 24454 mSDsCounter, 0 mSdLazyCounter, 3750 mSolverCounterSat, 224 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4718 SdHoareTripleChecker+Valid, 26556 SdHoareTripleChecker+Invalid, 3978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 3750 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:41:16,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4718 Valid, 26556 Invalid, 3978 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [224 Valid, 3750 Invalid, 4 Unknown, 0 Unchecked, 26.1s Time] [2021-11-23 03:41:16,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58589 states. [2021-11-23 03:41:19,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58589 to 58181. [2021-11-23 03:41:19,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58181 states, 33884 states have (on average 1.2514165978042735) internal successors, (42403), 35312 states have internal predecessors, (42403), 17988 states have call successors, (17988), 6326 states have call predecessors, (17988), 6283 states have return successors, (21673), 17568 states have call predecessors, (21673), 17986 states have call successors, (21673) [2021-11-23 03:41:19,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58181 states to 58181 states and 82064 transitions. [2021-11-23 03:41:19,886 INFO L78 Accepts]: Start accepts. Automaton has 58181 states and 82064 transitions. Word has length 78 [2021-11-23 03:41:19,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:41:19,886 INFO L470 AbstractCegarLoop]: Abstraction has 58181 states and 82064 transitions. [2021-11-23 03:41:19,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-23 03:41:19,886 INFO L276 IsEmpty]: Start isEmpty. Operand 58181 states and 82064 transitions. [2021-11-23 03:41:19,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-23 03:41:19,889 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:41:19,889 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:41:19,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-23 03:41:19,890 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-11-23 03:41:19,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:41:19,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1049850777, now seen corresponding path program 1 times [2021-11-23 03:41:19,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:41:19,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117522625] [2021-11-23 03:41:19,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:41:19,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:41:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:41:20,040 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 03:41:20,041 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:41:20,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117522625] [2021-11-23 03:41:20,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117522625] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:41:20,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:41:20,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:41:20,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029669403] [2021-11-23 03:41:20,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:41:20,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:41:20,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:41:20,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:41:20,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:41:20,043 INFO L87 Difference]: Start difference. First operand 58181 states and 82064 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-23 03:41:23,183 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 03:41:25,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:27,514 WARN L534 Checker$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 03:41:30,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:41:37,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:41:39,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:41:39,763 INFO L93 Difference]: Finished difference Result 58187 states and 82067 transitions. [2021-11-23 03:41:39,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:41:39,764 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 80 [2021-11-23 03:41:39,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:41:39,998 INFO L225 Difference]: With dead ends: 58187 [2021-11-23 03:41:39,998 INFO L226 Difference]: Without dead ends: 58185 [2021-11-23 03:41:40,020 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 03:41:40,021 INFO L933 BasicCegarLoop]: 4237 mSDtfsCounter, 4476 mSDsluCounter, 5662 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4487 SdHoareTripleChecker+Valid, 9180 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:41:40,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4487 Valid, 9180 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1303 Invalid, 4 Unknown, 0 Unchecked, 16.2s Time] [2021-11-23 03:41:40,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58185 states. [2021-11-23 03:41:43,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58185 to 58179. [2021-11-23 03:41:43,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58179 states, 33883 states have (on average 1.2513945046188355) internal successors, (42401), 35310 states have internal predecessors, (42401), 17988 states have call successors, (17988), 6326 states have call predecessors, (17988), 6283 states have return successors, (21673), 17568 states have call predecessors, (21673), 17986 states have call successors, (21673) [2021-11-23 03:41:44,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58179 states to 58179 states and 82062 transitions. [2021-11-23 03:41:44,333 INFO L78 Accepts]: Start accepts. Automaton has 58179 states and 82062 transitions. Word has length 80 [2021-11-23 03:41:44,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:41:44,333 INFO L470 AbstractCegarLoop]: Abstraction has 58179 states and 82062 transitions. [2021-11-23 03:41:44,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-23 03:41:44,333 INFO L276 IsEmpty]: Start isEmpty. Operand 58179 states and 82062 transitions. [2021-11-23 03:41:44,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-23 03:41:44,336 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:41:44,336 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:41:44,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-23 03:41:44,336 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-11-23 03:41:44,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:41:44,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1734994032, now seen corresponding path program 1 times [2021-11-23 03:41:44,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:41:44,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572406136] [2021-11-23 03:41:44,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:41:44,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:41:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:41:44,878 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 03:41:44,878 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:41:44,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572406136] [2021-11-23 03:41:44,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572406136] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:41:44,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:41:44,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:41:44,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163588766] [2021-11-23 03:41:44,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:41:44,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:41:44,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:41:44,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:41:44,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:41:44,881 INFO L87 Difference]: Start difference. First operand 58179 states and 82062 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 03:41:48,036 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:50,301 WARN L534 Checker$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 03:41:52,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:54,864 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:42:02,398 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:42:05,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:42:05,158 INFO L93 Difference]: Finished difference Result 58185 states and 82065 transitions. [2021-11-23 03:42:05,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:42:05,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 85 [2021-11-23 03:42:05,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:42:05,387 INFO L225 Difference]: With dead ends: 58185 [2021-11-23 03:42:05,387 INFO L226 Difference]: Without dead ends: 58183 [2021-11-23 03:42:05,409 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 03:42:05,410 INFO L933 BasicCegarLoop]: 4235 mSDtfsCounter, 4472 mSDsluCounter, 5660 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4485 SdHoareTripleChecker+Valid, 9177 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2021-11-23 03:42:05,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4485 Valid, 9177 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1301 Invalid, 5 Unknown, 0 Unchecked, 16.9s Time] [2021-11-23 03:42:05,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58183 states. [2021-11-23 03:42:09,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58183 to 58177. [2021-11-23 03:42:09,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58177 states, 33882 states have (on average 1.2513724101292723) internal successors, (42399), 35308 states have internal predecessors, (42399), 17988 states have call successors, (17988), 6326 states have call predecessors, (17988), 6283 states have return successors, (21673), 17568 states have call predecessors, (21673), 17986 states have call successors, (21673) [2021-11-23 03:42:10,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58177 states to 58177 states and 82060 transitions. [2021-11-23 03:42:10,033 INFO L78 Accepts]: Start accepts. Automaton has 58177 states and 82060 transitions. Word has length 85 [2021-11-23 03:42:10,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:42:10,033 INFO L470 AbstractCegarLoop]: Abstraction has 58177 states and 82060 transitions. [2021-11-23 03:42:10,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 03:42:10,034 INFO L276 IsEmpty]: Start isEmpty. Operand 58177 states and 82060 transitions. [2021-11-23 03:42:10,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-23 03:42:10,037 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:42:10,037 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:42:10,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-23 03:42:10,038 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_usb_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-11-23 03:42:10,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:42:10,038 INFO L85 PathProgramCache]: Analyzing trace with hash 950576005, now seen corresponding path program 1 times [2021-11-23 03:42:10,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:42:10,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673781410] [2021-11-23 03:42:10,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:42:10,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:42:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:42:10,343 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-11-23 03:42:10,343 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:42:10,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673781410] [2021-11-23 03:42:10,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673781410] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:42:10,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864828366] [2021-11-23 03:42:10,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:42:10,344 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:42:10,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:42:10,346 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:42:10,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44606778-b413-4136-90e6-6582decd178d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:42:11,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:42:11,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 1993 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 03:42:11,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:42:11,928 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-11-23 03:42:11,929 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:42:11,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864828366] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:42:11,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:42:11,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2021-11-23 03:42:11,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159743809] [2021-11-23 03:42:11,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:42:11,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:42:11,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:42:11,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:42:11,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-23 03:42:11,935 INFO L87 Difference]: Start difference. First operand 58177 states and 82060 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-23 03:42:14,679 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 03:42:16,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:19,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:21,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:42:23,402 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:42:29,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers []