./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--usb--gadget--udc--pch_udc.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_ea3e5f58-dd95-480d-90b7-917427b78e18/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/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_ea3e5f58-dd95-480d-90b7-917427b78e18/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/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_ea3e5f58-dd95-480d-90b7-917427b78e18/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 3494ff01381843f09414ec4d6a6d46e396afc707be426c75a152e34cf84e62a0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:56:47,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:56:47,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:56:47,436 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:56:47,436 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:56:47,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:56:47,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:56:47,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:56:47,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:56:47,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:56:47,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:56:47,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:56:47,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:56:47,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:56:47,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:56:47,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:56:47,458 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:56:47,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:56:47,462 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:56:47,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:56:47,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:56:47,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:56:47,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:56:47,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:56:47,478 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:56:47,479 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:56:47,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:56:47,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:56:47,482 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:56:47,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:56:47,484 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:56:47,485 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:56:47,486 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:56:47,487 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:56:47,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:56:47,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:56:47,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:56:47,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:56:47,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:56:47,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:56:47,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:56:47,495 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 01:56:47,531 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:56:47,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:56:47,536 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 01:56:47,536 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 01:56:47,544 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:56:47,544 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 01:56:47,544 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 01:56:47,545 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 01:56:47,545 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 01:56:47,545 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 01:56:47,547 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 01:56:47,547 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 01:56:47,547 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 01:56:47,548 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 01:56:47,548 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 01:56:47,548 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 01:56:47,549 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 01:56:47,549 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 01:56:47,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:56:47,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:56:47,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:56:47,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:56:47,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:56:47,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:56:47,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:56:47,553 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:56:47,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:56:47,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:56:47,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 01:56:47,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:56:47,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:56:47,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:56:47,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:56:47,556 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 01:56:47,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:56:47,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:56:47,557 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 01:56:47,557 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 01:56:47,557 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_ea3e5f58-dd95-480d-90b7-917427b78e18/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3494ff01381843f09414ec4d6a6d46e396afc707be426c75a152e34cf84e62a0 [2021-11-23 01:56:47,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:56:47,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:56:47,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:56:47,890 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:56:47,891 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:56:47,892 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i [2021-11-23 01:56:47,961 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/bin/utaipan-EQgc7hIp5V/data/abc2ce26f/1bda59d5b9b5474ea7bf3f9044805325/FLAG9ff80fda1 [2021-11-23 01:56:48,984 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:56:48,986 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i [2021-11-23 01:56:49,057 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/bin/utaipan-EQgc7hIp5V/data/abc2ce26f/1bda59d5b9b5474ea7bf3f9044805325/FLAG9ff80fda1 [2021-11-23 01:56:49,308 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/bin/utaipan-EQgc7hIp5V/data/abc2ce26f/1bda59d5b9b5474ea7bf3f9044805325 [2021-11-23 01:56:49,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:56:49,313 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:56:49,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:56:49,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:56:49,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:56:49,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:56:49" (1/1) ... [2021-11-23 01:56:49,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70a094a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:49, skipping insertion in model container [2021-11-23 01:56:49,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:56:49" (1/1) ... [2021-11-23 01:56:49,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:56:49,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:56:54,175 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[374384,374397] [2021-11-23 01:56:54,179 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[374529,374542] [2021-11-23 01:56:54,180 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[374675,374688] [2021-11-23 01:56:54,181 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[374840,374853] [2021-11-23 01:56:54,182 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[374998,375011] [2021-11-23 01:56:54,182 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[375156,375169] [2021-11-23 01:56:54,183 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[375314,375327] [2021-11-23 01:56:54,184 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[375474,375487] [2021-11-23 01:56:54,184 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[375633,375646] [2021-11-23 01:56:54,185 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[375772,375785] [2021-11-23 01:56:54,185 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[375914,375927] [2021-11-23 01:56:54,186 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[376063,376076] [2021-11-23 01:56:54,187 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[376202,376215] [2021-11-23 01:56:54,187 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[376357,376370] [2021-11-23 01:56:54,188 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[376517,376530] [2021-11-23 01:56:54,188 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[376668,376681] [2021-11-23 01:56:54,189 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[376819,376832] [2021-11-23 01:56:54,191 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[376971,376984] [2021-11-23 01:56:54,193 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[377120,377133] [2021-11-23 01:56:54,193 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[377268,377281] [2021-11-23 01:56:54,194 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[377425,377438] [2021-11-23 01:56:54,195 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[377574,377587] [2021-11-23 01:56:54,196 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[377730,377743] [2021-11-23 01:56:54,198 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[377883,377896] [2021-11-23 01:56:54,199 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[378029,378042] [2021-11-23 01:56:54,199 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[378172,378185] [2021-11-23 01:56:54,200 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[378324,378337] [2021-11-23 01:56:54,201 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[378470,378483] [2021-11-23 01:56:54,202 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[378615,378628] [2021-11-23 01:56:54,203 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[378769,378782] [2021-11-23 01:56:54,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[378920,378933] [2021-11-23 01:56:54,210 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[379075,379088] [2021-11-23 01:56:54,210 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[379227,379240] [2021-11-23 01:56:54,211 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[379382,379395] [2021-11-23 01:56:54,211 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[379546,379559] [2021-11-23 01:56:54,212 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[379702,379715] [2021-11-23 01:56:54,213 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[379866,379879] [2021-11-23 01:56:54,214 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[380008,380021] [2021-11-23 01:56:54,214 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[380166,380179] [2021-11-23 01:56:54,215 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[380333,380346] [2021-11-23 01:56:54,215 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[380492,380505] [2021-11-23 01:56:54,216 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[380651,380664] [2021-11-23 01:56:54,216 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[380800,380813] [2021-11-23 01:56:54,217 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[380947,380960] [2021-11-23 01:56:54,217 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[381086,381099] [2021-11-23 01:56:54,218 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[381249,381262] [2021-11-23 01:56:54,218 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[381415,381428] [2021-11-23 01:56:54,220 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[381579,381592] [2021-11-23 01:56:54,220 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[381744,381757] [2021-11-23 01:56:54,221 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[381909,381922] [2021-11-23 01:56:54,221 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[382075,382088] [2021-11-23 01:56:54,222 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[382240,382253] [2021-11-23 01:56:54,222 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[382407,382420] [2021-11-23 01:56:54,223 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[382567,382580] [2021-11-23 01:56:54,223 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[382729,382742] [2021-11-23 01:56:54,224 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[382888,382901] [2021-11-23 01:56:54,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[383034,383047] [2021-11-23 01:56:54,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[383177,383190] [2021-11-23 01:56:54,226 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[383321,383334] [2021-11-23 01:56:54,226 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[383464,383477] [2021-11-23 01:56:54,227 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[383608,383621] [2021-11-23 01:56:54,228 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[383749,383762] [2021-11-23 01:56:54,229 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[383887,383900] [2021-11-23 01:56:54,229 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[384045,384058] [2021-11-23 01:56:54,230 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[384204,384217] [2021-11-23 01:56:54,232 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[384360,384373] [2021-11-23 01:56:54,233 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[384509,384522] [2021-11-23 01:56:54,234 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[384661,384674] [2021-11-23 01:56:54,234 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[384812,384825] [2021-11-23 01:56:54,235 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[384961,384974] [2021-11-23 01:56:54,235 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[385113,385126] [2021-11-23 01:56:54,236 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[385261,385274] [2021-11-23 01:56:54,236 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[385414,385427] [2021-11-23 01:56:54,237 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[385565,385578] [2021-11-23 01:56:54,237 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[385715,385728] [2021-11-23 01:56:54,238 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[385862,385875] [2021-11-23 01:56:54,238 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[386013,386026] [2021-11-23 01:56:54,239 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[386164,386177] [2021-11-23 01:56:54,239 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[386312,386325] [2021-11-23 01:56:54,240 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[386478,386491] [2021-11-23 01:56:54,240 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[386647,386660] [2021-11-23 01:56:54,241 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[386814,386827] [2021-11-23 01:56:54,241 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[386982,386995] [2021-11-23 01:56:54,242 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[387132,387145] [2021-11-23 01:56:54,243 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[387279,387292] [2021-11-23 01:56:54,244 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[387440,387453] [2021-11-23 01:56:54,245 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[387610,387623] [2021-11-23 01:56:54,246 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[387772,387785] [2021-11-23 01:56:54,265 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:56:54,312 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:56:54,908 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[374384,374397] [2021-11-23 01:56:54,909 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[374529,374542] [2021-11-23 01:56:54,910 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[374675,374688] [2021-11-23 01:56:54,911 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[374840,374853] [2021-11-23 01:56:54,911 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[374998,375011] [2021-11-23 01:56:54,912 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[375156,375169] [2021-11-23 01:56:54,913 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[375314,375327] [2021-11-23 01:56:54,913 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[375474,375487] [2021-11-23 01:56:54,915 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[375633,375646] [2021-11-23 01:56:54,915 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[375772,375785] [2021-11-23 01:56:54,917 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[375914,375927] [2021-11-23 01:56:54,917 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[376063,376076] [2021-11-23 01:56:54,918 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[376202,376215] [2021-11-23 01:56:54,918 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[376357,376370] [2021-11-23 01:56:54,919 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[376517,376530] [2021-11-23 01:56:54,920 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[376668,376681] [2021-11-23 01:56:54,920 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[376819,376832] [2021-11-23 01:56:54,921 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[376971,376984] [2021-11-23 01:56:54,921 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[377120,377133] [2021-11-23 01:56:54,922 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[377268,377281] [2021-11-23 01:56:54,922 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[377425,377438] [2021-11-23 01:56:54,923 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[377574,377587] [2021-11-23 01:56:54,924 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[377730,377743] [2021-11-23 01:56:54,926 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[377883,377896] [2021-11-23 01:56:54,926 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[378029,378042] [2021-11-23 01:56:54,927 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[378172,378185] [2021-11-23 01:56:54,927 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[378324,378337] [2021-11-23 01:56:54,929 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[378470,378483] [2021-11-23 01:56:54,929 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[378615,378628] [2021-11-23 01:56:54,930 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[378769,378782] [2021-11-23 01:56:54,930 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[378920,378933] [2021-11-23 01:56:54,931 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[379075,379088] [2021-11-23 01:56:54,932 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[379227,379240] [2021-11-23 01:56:54,933 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[379382,379395] [2021-11-23 01:56:54,934 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[379546,379559] [2021-11-23 01:56:54,934 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[379702,379715] [2021-11-23 01:56:54,935 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[379866,379879] [2021-11-23 01:56:54,937 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[380008,380021] [2021-11-23 01:56:54,937 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[380166,380179] [2021-11-23 01:56:54,938 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[380333,380346] [2021-11-23 01:56:54,939 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[380492,380505] [2021-11-23 01:56:54,940 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[380651,380664] [2021-11-23 01:56:54,941 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[380800,380813] [2021-11-23 01:56:54,942 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[380947,380960] [2021-11-23 01:56:54,942 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[381086,381099] [2021-11-23 01:56:54,943 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[381249,381262] [2021-11-23 01:56:54,943 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[381415,381428] [2021-11-23 01:56:54,944 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[381579,381592] [2021-11-23 01:56:54,945 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[381744,381757] [2021-11-23 01:56:54,945 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[381909,381922] [2021-11-23 01:56:54,946 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[382075,382088] [2021-11-23 01:56:54,946 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[382240,382253] [2021-11-23 01:56:54,948 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[382407,382420] [2021-11-23 01:56:54,949 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[382567,382580] [2021-11-23 01:56:54,951 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[382729,382742] [2021-11-23 01:56:54,957 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[382888,382901] [2021-11-23 01:56:54,961 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[383034,383047] [2021-11-23 01:56:54,961 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[383177,383190] [2021-11-23 01:56:54,962 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[383321,383334] [2021-11-23 01:56:54,963 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[383464,383477] [2021-11-23 01:56:54,964 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[383608,383621] [2021-11-23 01:56:54,966 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[383749,383762] [2021-11-23 01:56:54,966 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[383887,383900] [2021-11-23 01:56:54,967 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[384045,384058] [2021-11-23 01:56:54,967 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[384204,384217] [2021-11-23 01:56:54,974 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[384360,384373] [2021-11-23 01:56:54,976 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[384509,384522] [2021-11-23 01:56:54,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[384661,384674] [2021-11-23 01:56:54,981 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[384812,384825] [2021-11-23 01:56:54,982 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[384961,384974] [2021-11-23 01:56:54,982 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[385113,385126] [2021-11-23 01:56:54,983 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[385261,385274] [2021-11-23 01:56:54,983 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[385414,385427] [2021-11-23 01:56:54,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[385565,385578] [2021-11-23 01:56:54,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[385715,385728] [2021-11-23 01:56:54,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[385862,385875] [2021-11-23 01:56:54,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[386013,386026] [2021-11-23 01:56:54,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[386164,386177] [2021-11-23 01:56:54,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[386312,386325] [2021-11-23 01:56:54,989 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[386478,386491] [2021-11-23 01:56:54,990 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[386647,386660] [2021-11-23 01:56:54,991 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[386814,386827] [2021-11-23 01:56:54,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[386982,386995] [2021-11-23 01:56:54,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[387132,387145] [2021-11-23 01:56:54,993 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[387279,387292] [2021-11-23 01:56:54,994 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[387440,387453] [2021-11-23 01:56:54,994 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[387610,387623] [2021-11-23 01:56:54,995 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i[387772,387785] [2021-11-23 01:56:55,002 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:56:55,319 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:56:55,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:55 WrapperNode [2021-11-23 01:56:55,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:56:55,321 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:56:55,321 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:56:55,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:56:55,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:55" (1/1) ... [2021-11-23 01:56:55,480 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:55" (1/1) ... [2021-11-23 01:56:55,751 INFO L137 Inliner]: procedures = 701, calls = 2702, calls flagged for inlining = 312, calls inlined = 235, statements flattened = 5585 [2021-11-23 01:56:55,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:56:55,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:56:55,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:56:55,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:56:55,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:55" (1/1) ... [2021-11-23 01:56:55,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:55" (1/1) ... [2021-11-23 01:56:55,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:55" (1/1) ... [2021-11-23 01:56:55,843 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:55" (1/1) ... [2021-11-23 01:56:55,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:55" (1/1) ... [2021-11-23 01:56:56,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:55" (1/1) ... [2021-11-23 01:56:56,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:55" (1/1) ... [2021-11-23 01:56:56,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:56:56,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:56:56,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:56:56,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:56:56,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:55" (1/1) ... [2021-11-23 01:56:56,104 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:56:56,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:56:56,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 01:56:56,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 01:56:56,189 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_clear_stall [2021-11-23 01:56:56,189 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_clear_stall [2021-11-23 01:56:56,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_99 [2021-11-23 01:56:56,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_99 [2021-11-23 01:56:56,190 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_clear_ep_status [2021-11-23 01:56:56,190 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_clear_ep_status [2021-11-23 01:56:56,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-23 01:56:56,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-23 01:56:56,190 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_init_setup_buff [2021-11-23 01:56:56,190 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_init_setup_buff [2021-11-23 01:56:56,191 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_resume [2021-11-23 01:56:56,191 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_resume [2021-11-23 01:56:56,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 01:56:56,191 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 01:56:56,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_udc_stall_spinlock [2021-11-23 01:56:56,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_udc_stall_spinlock [2021-11-23 01:56:56,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 01:56:56,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 01:56:56,192 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_shutdown [2021-11-23 01:56:56,192 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_shutdown [2021-11-23 01:56:56,192 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_clear_dma [2021-11-23 01:56:56,192 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_clear_dma [2021-11-23 01:56:56,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-23 01:56:56,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-23 01:56:56,193 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-23 01:56:56,193 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-23 01:56:56,193 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_pcd_init [2021-11-23 01:56:56,194 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_pcd_init [2021-11-23 01:56:56,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-23 01:56:56,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-23 01:56:56,194 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-23 01:56:56,194 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-23 01:56:56,194 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_svc_data_out [2021-11-23 01:56:56,195 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_svc_data_out [2021-11-23 01:56:56,195 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_free_dma_chain [2021-11-23 01:56:56,195 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_free_dma_chain [2021-11-23 01:56:56,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-23 01:56:56,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-23 01:56:56,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-23 01:56:56,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-23 01:56:56,196 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-23 01:56:56,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-23 01:56:56,196 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_read_ep_control [2021-11-23 01:56:56,196 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_read_ep_control [2021-11-23 01:56:56,196 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_pcd_set_wedge [2021-11-23 01:56:56,197 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_pcd_set_wedge [2021-11-23 01:56:56,197 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_reconnect [2021-11-23 01:56:56,197 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_reconnect [2021-11-23 01:56:56,197 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_readl [2021-11-23 01:56:56,198 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_readl [2021-11-23 01:56:56,198 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_postsvc_epinters [2021-11-23 01:56:56,198 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_postsvc_epinters [2021-11-23 01:56:56,198 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2021-11-23 01:56:56,198 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2021-11-23 01:56:56,199 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-23 01:56:56,199 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-23 01:56:56,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 01:56:56,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 01:56:56,199 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2021-11-23 01:56:56,199 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2021-11-23 01:56:56,200 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_start_rxrequest [2021-11-23 01:56:56,200 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_start_rxrequest [2021-11-23 01:56:56,200 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-23 01:56:56,200 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-23 01:56:56,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 01:56:56,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 01:56:56,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-23 01:56:56,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-23 01:56:56,206 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-23 01:56:56,206 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-23 01:56:56,206 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2021-11-23 01:56:56,207 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2021-11-23 01:56:56,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:56:56,207 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_disable_ep_interrupts [2021-11-23 01:56:56,208 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_disable_ep_interrupts [2021-11-23 01:56:56,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-23 01:56:56,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-23 01:56:56,211 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_wait_ep_stall [2021-11-23 01:56:56,211 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_wait_ep_stall [2021-11-23 01:56:56,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 01:56:56,211 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-23 01:56:56,211 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-23 01:56:56,211 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-23 01:56:56,212 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-23 01:56:56,212 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_fifo_flush [2021-11-23 01:56:56,212 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_fifo_flush [2021-11-23 01:56:56,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_102 [2021-11-23 01:56:56,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_102 [2021-11-23 01:56:56,212 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_clear_nak [2021-11-23 01:56:56,213 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_clear_nak [2021-11-23 01:56:56,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 01:56:56,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-23 01:56:56,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-23 01:56:56,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 01:56:56,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 01:56:56,214 INFO L130 BoogieDeclarations]: Found specification of procedure empty_req_queue [2021-11-23 01:56:56,214 INFO L138 BoogieDeclarations]: Found implementation of procedure empty_req_queue [2021-11-23 01:56:56,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-23 01:56:56,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-23 01:56:56,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 01:56:56,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-23 01:56:56,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-23 01:56:56,215 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-23 01:56:56,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-23 01:56:56,215 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_set_nak [2021-11-23 01:56:56,215 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_set_nak [2021-11-23 01:56:56,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 01:56:56,215 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 01:56:56,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-23 01:56:56,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-23 01:56:56,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-23 01:56:56,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-23 01:56:56,216 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_start [2021-11-23 01:56:56,216 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_start [2021-11-23 01:56:56,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-23 01:56:56,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-23 01:56:56,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 01:56:56,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 01:56:56,217 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_read_device_status [2021-11-23 01:56:56,218 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_read_device_status [2021-11-23 01:56:56,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_1 [2021-11-23 01:56:56,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_1 [2021-11-23 01:56:56,219 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-23 01:56:56,219 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-23 01:56:56,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-23 01:56:56,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-23 01:56:56,219 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-23 01:56:56,219 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-23 01:56:56,220 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_pcd_dequeue [2021-11-23 01:56:56,220 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_pcd_dequeue [2021-11-23 01:56:56,292 INFO L130 BoogieDeclarations]: Found specification of procedure pch_vbus_gpio_init [2021-11-23 01:56:56,292 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_vbus_gpio_init [2021-11-23 01:56:56,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-23 01:56:56,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-23 01:56:56,292 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_disable_interrupts [2021-11-23 01:56:56,292 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_disable_interrupts [2021-11-23 01:56:56,292 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_pcd_wakeup [2021-11-23 01:56:56,292 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_pcd_wakeup [2021-11-23 01:56:56,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_pch_udc_dev [2021-11-23 01:56:56,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_pch_udc_dev [2021-11-23 01:56:56,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_check_return_value_probe [2021-11-23 01:56:56,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_check_return_value_probe [2021-11-23 01:56:56,293 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_to_desc [2021-11-23 01:56:56,293 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_to_desc [2021-11-23 01:56:56,293 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_svc_control_out [2021-11-23 01:56:56,293 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_svc_control_out [2021-11-23 01:56:56,293 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_dev_isr [2021-11-23 01:56:56,293 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_dev_isr [2021-11-23 01:56:56,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:56:56,293 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_set_stall [2021-11-23 01:56:56,293 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_set_stall [2021-11-23 01:56:56,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_0 [2021-11-23 01:56:56,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_0 [2021-11-23 01:56:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_init [2021-11-23 01:56:56,294 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_init [2021-11-23 01:56:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-23 01:56:56,294 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-23 01:56:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_check_return_value_probe [2021-11-23 01:56:56,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_check_return_value_probe [2021-11-23 01:56:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:56:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 01:56:56,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 01:56:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-23 01:56:56,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-23 01:56:56,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 01:56:56,295 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 01:56:56,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 01:56:56,295 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_enable_ep_interrupts [2021-11-23 01:56:56,295 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_enable_ep_interrupts [2021-11-23 01:56:56,295 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 01:56:56,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 01:56:56,295 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_pcd_ep_enable [2021-11-23 01:56:56,295 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_pcd_ep_enable [2021-11-23 01:56:56,297 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_remove [2021-11-23 01:56:56,297 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_remove [2021-11-23 01:56:56,297 INFO L130 BoogieDeclarations]: Found specification of procedure gadget_release [2021-11-23 01:56:56,297 INFO L138 BoogieDeclarations]: Found implementation of procedure gadget_release [2021-11-23 01:56:56,297 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-23 01:56:56,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-23 01:56:56,297 INFO L130 BoogieDeclarations]: Found specification of procedure pch_vbus_gpio_work_fall [2021-11-23 01:56:56,297 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_vbus_gpio_work_fall [2021-11-23 01:56:56,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_pch_udc_dev [2021-11-23 01:56:56,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_pch_udc_dev [2021-11-23 01:56:56,298 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_set_maxpacket_limit [2021-11-23 01:56:56,298 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_set_maxpacket_limit [2021-11-23 01:56:56,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-23 01:56:56,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-23 01:56:56,298 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_set_bufsz [2021-11-23 01:56:56,298 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_set_bufsz [2021-11-23 01:56:56,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:56:56,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:56:56,298 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_enable_interrupts [2021-11-23 01:56:56,298 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_enable_interrupts [2021-11-23 01:56:56,298 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_bit_clr [2021-11-23 01:56:56,299 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_bit_clr [2021-11-23 01:56:56,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 01:56:56,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 01:56:56,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 01:56:56,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 01:56:56,299 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_bit_set [2021-11-23 01:56:56,299 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_bit_set [2021-11-23 01:56:56,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-23 01:56:56,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-23 01:56:56,301 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-23 01:56:56,301 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-23 01:56:56,301 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-11-23 01:56:56,302 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-11-23 01:56:56,302 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_csr_busy [2021-11-23 01:56:56,302 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_csr_busy [2021-11-23 01:56:56,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-23 01:56:56,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-23 01:56:56,302 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_stop [2021-11-23 01:56:56,303 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_stop [2021-11-23 01:56:56,303 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-11-23 01:56:56,303 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-11-23 01:56:56,303 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_writel [2021-11-23 01:56:56,303 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_writel [2021-11-23 01:56:56,303 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_isr [2021-11-23 01:56:56,303 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_isr [2021-11-23 01:56:56,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 01:56:56,304 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 01:56:56,304 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_readl [2021-11-23 01:56:56,304 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_readl [2021-11-23 01:56:56,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-23 01:56:56,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-23 01:56:56,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-23 01:56:56,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-23 01:56:56,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-23 01:56:56,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-23 01:56:56,305 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-23 01:56:56,305 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-23 01:56:56,305 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_set_rrdy [2021-11-23 01:56:56,305 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_set_rrdy [2021-11-23 01:56:56,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 01:56:56,306 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 01:56:56,306 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 01:56:56,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-23 01:56:56,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-23 01:56:56,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_117 [2021-11-23 01:56:56,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_117 [2021-11-23 01:56:56,307 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_pcd_ep_disable [2021-11-23 01:56:56,307 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_pcd_ep_disable [2021-11-23 01:56:56,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 01:56:56,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_irq_register_10_2 [2021-11-23 01:56:56,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_irq_register_10_2 [2021-11-23 01:56:56,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_139 [2021-11-23 01:56:56,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_139 [2021-11-23 01:56:56,308 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-23 01:56:56,308 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-23 01:56:56,308 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_set_maxpkt [2021-11-23 01:56:56,308 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_set_maxpkt [2021-11-23 01:56:56,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 01:56:56,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-23 01:56:56,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-23 01:56:56,309 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-23 01:56:56,309 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-23 01:56:56,309 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_pcd_fifo_flush [2021-11-23 01:56:56,309 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_pcd_fifo_flush [2021-11-23 01:56:56,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-23 01:56:56,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-23 01:56:56,310 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_set_dma [2021-11-23 01:56:56,310 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_set_dma [2021-11-23 01:56:56,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-23 01:56:56,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-23 01:56:56,310 INFO L130 BoogieDeclarations]: Found specification of procedure pch_vbus_gpio_get_value [2021-11-23 01:56:56,310 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_vbus_gpio_get_value [2021-11-23 01:56:56,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 01:56:56,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 01:56:56,311 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-23 01:56:56,311 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-23 01:56:56,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-23 01:56:56,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-23 01:56:56,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-23 01:56:56,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-23 01:56:56,312 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_write_ep_interrupts [2021-11-23 01:56:56,312 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_write_ep_interrupts [2021-11-23 01:56:56,312 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-23 01:56:56,312 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-23 01:56:56,312 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_svc_intf_interrupt [2021-11-23 01:56:56,312 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_svc_intf_interrupt [2021-11-23 01:56:56,313 INFO L130 BoogieDeclarations]: Found specification of procedure complete_req [2021-11-23 01:56:56,313 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_req [2021-11-23 01:56:56,313 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_writel [2021-11-23 01:56:56,313 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_writel [2021-11-23 01:56:56,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-23 01:56:56,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-23 01:56:56,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-23 01:56:56,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-23 01:56:56,314 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-23 01:56:56,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-23 01:56:56,314 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_read_csr [2021-11-23 01:56:56,314 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_read_csr [2021-11-23 01:56:56,314 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_bit_set [2021-11-23 01:56:56,314 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_bit_set [2021-11-23 01:56:56,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-23 01:56:56,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-23 01:56:56,315 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 01:56:56,315 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 01:56:56,315 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_set_ddptr [2021-11-23 01:56:56,315 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_set_ddptr [2021-11-23 01:56:56,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 01:56:56,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-23 01:56:56,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-23 01:56:56,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 01:56:56,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 01:56:56,316 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_clear_ep_control [2021-11-23 01:56:56,316 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_clear_ep_control [2021-11-23 01:56:56,316 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-23 01:56:56,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-23 01:56:56,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_97 [2021-11-23 01:56:56,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_97 [2021-11-23 01:56:56,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-23 01:56:56,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-23 01:56:56,317 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_start_next_txrequest [2021-11-23 01:56:56,318 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_start_next_txrequest [2021-11-23 01:56:56,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_96 [2021-11-23 01:56:56,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_96 [2021-11-23 01:56:56,318 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-23 01:56:56,318 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-23 01:56:56,318 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_probe [2021-11-23 01:56:56,318 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_probe [2021-11-23 01:56:56,319 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_read_ep_status [2021-11-23 01:56:56,319 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_read_ep_status [2021-11-23 01:56:56,319 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_write_csr [2021-11-23 01:56:56,319 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_write_csr [2021-11-23 01:56:56,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 01:56:56,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 01:56:56,319 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-23 01:56:56,320 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-23 01:56:56,320 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_complete_transfer [2021-11-23 01:56:56,320 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_complete_transfer [2021-11-23 01:56:56,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-23 01:56:56,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-23 01:56:56,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_instance_handler_0_5 [2021-11-23 01:56:56,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_instance_handler_0_5 [2021-11-23 01:56:56,321 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-23 01:56:56,321 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-23 01:56:56,321 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_ep_bit_clr [2021-11-23 01:56:56,321 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_ep_bit_clr [2021-11-23 01:56:56,321 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 01:56:56,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 01:56:56,322 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_set_disconnect [2021-11-23 01:56:56,322 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_set_disconnect [2021-11-23 01:56:56,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:56:56,322 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_svc_cfg_interrupt [2021-11-23 01:56:56,322 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_svc_cfg_interrupt [2021-11-23 01:56:56,322 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2021-11-23 01:56:56,322 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2021-11-23 01:56:56,323 INFO L130 BoogieDeclarations]: Found specification of procedure pch_udc_pcd_get_frame [2021-11-23 01:56:56,323 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_udc_pcd_get_frame [2021-11-23 01:56:57,338 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:56:57,344 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:56:57,810 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 01:57:04,470 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:57:05,612 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:57:05,612 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-23 01:57:05,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:57:05 BoogieIcfgContainer [2021-11-23 01:57:05,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:57:05,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 01:57:05,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 01:57:05,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 01:57:05,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:56:49" (1/3) ... [2021-11-23 01:57:05,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a583436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:57:05, skipping insertion in model container [2021-11-23 01:57:05,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:55" (2/3) ... [2021-11-23 01:57:05,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a583436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:57:05, skipping insertion in model container [2021-11-23 01:57:05,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:57:05" (3/3) ... [2021-11-23 01:57:05,633 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--usb--gadget--udc--pch_udc.ko.cil.i [2021-11-23 01:57:05,695 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 01:57:05,696 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2021-11-23 01:57:05,782 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 01:57:05,789 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 01:57:05,789 INFO L340 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2021-11-23 01:57:05,865 INFO L276 IsEmpty]: Start isEmpty. Operand has 2056 states, 1163 states have (on average 1.3215821152192606) internal successors, (1537), 1274 states have internal predecessors, (1537), 703 states have call successors, (703), 167 states have call predecessors, (703), 166 states have return successors, (695), 679 states have call predecessors, (695), 695 states have call successors, (695) [2021-11-23 01:57:05,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 01:57:05,873 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:05,873 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:57:05,874 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:57:05,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:05,880 INFO L85 PathProgramCache]: Analyzing trace with hash 797604943, now seen corresponding path program 1 times [2021-11-23 01:57:05,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:57:05,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062170470] [2021-11-23 01:57:05,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:05,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:57:06,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:06,539 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:57:06,540 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:57:06,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062170470] [2021-11-23 01:57:06,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062170470] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:06,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:57:06,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:57:06,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536181179] [2021-11-23 01:57:06,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:06,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:57:06,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:57:06,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:57:06,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:57:06,601 INFO L87 Difference]: Start difference. First operand has 2056 states, 1163 states have (on average 1.3215821152192606) internal successors, (1537), 1274 states have internal predecessors, (1537), 703 states have call successors, (703), 167 states have call predecessors, (703), 166 states have return successors, (695), 679 states have call predecessors, (695), 695 states have call successors, (695) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-23 01:57:09,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:57:09,031 INFO L93 Difference]: Finished difference Result 5490 states and 8105 transitions. [2021-11-23 01:57:09,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 01:57:09,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 47 [2021-11-23 01:57:09,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:57:09,115 INFO L225 Difference]: With dead ends: 5490 [2021-11-23 01:57:09,115 INFO L226 Difference]: Without dead ends: 3427 [2021-11-23 01:57:09,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:57:09,154 INFO L933 BasicCegarLoop]: 3189 mSDtfsCounter, 1945 mSDsluCounter, 6343 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1947 SdHoareTripleChecker+Valid, 8938 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-23 01:57:09,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1947 Valid, 8938 Invalid, 914 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-23 01:57:09,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3427 states. [2021-11-23 01:57:09,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3427 to 3256. [2021-11-23 01:57:09,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3256 states, 1846 states have (on average 1.2876489707475622) internal successors, (2377), 1988 states have internal predecessors, (2377), 1105 states have call successors, (1105), 278 states have call predecessors, (1105), 277 states have return successors, (1111), 1072 states have call predecessors, (1111), 1103 states have call successors, (1111) [2021-11-23 01:57:09,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3256 states to 3256 states and 4593 transitions. [2021-11-23 01:57:09,601 INFO L78 Accepts]: Start accepts. Automaton has 3256 states and 4593 transitions. Word has length 47 [2021-11-23 01:57:09,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:57:09,602 INFO L470 AbstractCegarLoop]: Abstraction has 3256 states and 4593 transitions. [2021-11-23 01:57:09,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-23 01:57:09,603 INFO L276 IsEmpty]: Start isEmpty. Operand 3256 states and 4593 transitions. [2021-11-23 01:57:09,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-23 01:57:09,606 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:09,606 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:57:09,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 01:57:09,607 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:57:09,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:09,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1094837281, now seen corresponding path program 1 times [2021-11-23 01:57:09,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:57:09,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579066006] [2021-11-23 01:57:09,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:09,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:57:09,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:09,814 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:57:09,814 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:57:09,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579066006] [2021-11-23 01:57:09,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579066006] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:09,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:57:09,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:57:09,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837502735] [2021-11-23 01:57:09,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:09,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:57:09,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:57:09,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:57:09,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:57:09,818 INFO L87 Difference]: Start difference. First operand 3256 states and 4593 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-23 01:57:11,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:57:11,250 INFO L93 Difference]: Finished difference Result 3256 states and 4593 transitions. [2021-11-23 01:57:11,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:57:11,251 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 52 [2021-11-23 01:57:11,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:57:11,283 INFO L225 Difference]: With dead ends: 3256 [2021-11-23 01:57:11,284 INFO L226 Difference]: Without dead ends: 3254 [2021-11-23 01:57:11,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:57:11,288 INFO L933 BasicCegarLoop]: 2555 mSDtfsCounter, 2829 mSDsluCounter, 2847 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2831 SdHoareTripleChecker+Valid, 5110 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-23 01:57:11,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2831 Valid, 5110 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-23 01:57:11,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3254 states. [2021-11-23 01:57:11,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3254 to 3254. [2021-11-23 01:57:11,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3254 states, 1845 states have (on average 1.2872628726287263) internal successors, (2375), 1986 states have internal predecessors, (2375), 1105 states have call successors, (1105), 278 states have call predecessors, (1105), 277 states have return successors, (1111), 1072 states have call predecessors, (1111), 1103 states have call successors, (1111) [2021-11-23 01:57:11,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3254 states to 3254 states and 4591 transitions. [2021-11-23 01:57:11,517 INFO L78 Accepts]: Start accepts. Automaton has 3254 states and 4591 transitions. Word has length 52 [2021-11-23 01:57:11,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:57:11,518 INFO L470 AbstractCegarLoop]: Abstraction has 3254 states and 4591 transitions. [2021-11-23 01:57:11,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-23 01:57:11,518 INFO L276 IsEmpty]: Start isEmpty. Operand 3254 states and 4591 transitions. [2021-11-23 01:57:11,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-23 01:57:11,522 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:11,522 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:57:11,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 01:57:11,522 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:57:11,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:11,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1256748522, now seen corresponding path program 1 times [2021-11-23 01:57:11,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:57:11,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537206612] [2021-11-23 01:57:11,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:11,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:57:11,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:11,785 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:57:11,785 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:57:11,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537206612] [2021-11-23 01:57:11,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537206612] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:11,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:57:11,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:57:11,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089226624] [2021-11-23 01:57:11,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:11,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:57:11,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:57:11,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:57:11,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:57:11,788 INFO L87 Difference]: Start difference. First operand 3254 states and 4591 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-23 01:57:13,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:57:13,183 INFO L93 Difference]: Finished difference Result 3254 states and 4591 transitions. [2021-11-23 01:57:13,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:57:13,183 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 57 [2021-11-23 01:57:13,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:57:13,212 INFO L225 Difference]: With dead ends: 3254 [2021-11-23 01:57:13,212 INFO L226 Difference]: Without dead ends: 3252 [2021-11-23 01:57:13,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:57:13,216 INFO L933 BasicCegarLoop]: 2553 mSDtfsCounter, 2826 mSDsluCounter, 2845 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2828 SdHoareTripleChecker+Valid, 5106 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-23 01:57:13,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2828 Valid, 5106 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-23 01:57:13,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3252 states. [2021-11-23 01:57:13,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3252 to 3252. [2021-11-23 01:57:13,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3252 states, 1844 states have (on average 1.2868763557483731) internal successors, (2373), 1984 states have internal predecessors, (2373), 1105 states have call successors, (1105), 278 states have call predecessors, (1105), 277 states have return successors, (1111), 1072 states have call predecessors, (1111), 1103 states have call successors, (1111) [2021-11-23 01:57:13,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3252 states to 3252 states and 4589 transitions. [2021-11-23 01:57:13,427 INFO L78 Accepts]: Start accepts. Automaton has 3252 states and 4589 transitions. Word has length 57 [2021-11-23 01:57:13,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:57:13,428 INFO L470 AbstractCegarLoop]: Abstraction has 3252 states and 4589 transitions. [2021-11-23 01:57:13,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-23 01:57:13,429 INFO L276 IsEmpty]: Start isEmpty. Operand 3252 states and 4589 transitions. [2021-11-23 01:57:13,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-23 01:57:13,431 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:13,431 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:57:13,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 01:57:13,432 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:57:13,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:13,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1878500649, now seen corresponding path program 1 times [2021-11-23 01:57:13,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:57:13,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443541917] [2021-11-23 01:57:13,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:13,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:57:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:13,696 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:57:13,696 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:57:13,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443541917] [2021-11-23 01:57:13,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443541917] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:13,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:57:13,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:57:13,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306111988] [2021-11-23 01:57:13,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:13,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:57:13,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:57:13,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:57:13,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:57:13,700 INFO L87 Difference]: Start difference. First operand 3252 states and 4589 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-23 01:57:15,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:57:15,287 INFO L93 Difference]: Finished difference Result 3252 states and 4589 transitions. [2021-11-23 01:57:15,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:57:15,288 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 62 [2021-11-23 01:57:15,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:57:15,318 INFO L225 Difference]: With dead ends: 3252 [2021-11-23 01:57:15,318 INFO L226 Difference]: Without dead ends: 3250 [2021-11-23 01:57:15,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:57:15,323 INFO L933 BasicCegarLoop]: 2551 mSDtfsCounter, 2823 mSDsluCounter, 2843 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2825 SdHoareTripleChecker+Valid, 5102 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-23 01:57:15,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2825 Valid, 5102 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-23 01:57:15,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3250 states. [2021-11-23 01:57:15,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3250 to 3250. [2021-11-23 01:57:15,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3250 states, 1843 states have (on average 1.2864894194248508) internal successors, (2371), 1982 states have internal predecessors, (2371), 1105 states have call successors, (1105), 278 states have call predecessors, (1105), 277 states have return successors, (1111), 1072 states have call predecessors, (1111), 1103 states have call successors, (1111) [2021-11-23 01:57:15,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3250 states to 3250 states and 4587 transitions. [2021-11-23 01:57:15,605 INFO L78 Accepts]: Start accepts. Automaton has 3250 states and 4587 transitions. Word has length 62 [2021-11-23 01:57:15,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:57:15,606 INFO L470 AbstractCegarLoop]: Abstraction has 3250 states and 4587 transitions. [2021-11-23 01:57:15,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-23 01:57:15,607 INFO L276 IsEmpty]: Start isEmpty. Operand 3250 states and 4587 transitions. [2021-11-23 01:57:15,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-23 01:57:15,614 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:15,614 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:57:15,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 01:57:15,616 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:57:15,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:15,619 INFO L85 PathProgramCache]: Analyzing trace with hash -847122850, now seen corresponding path program 1 times [2021-11-23 01:57:15,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:57:15,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410238311] [2021-11-23 01:57:15,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:15,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:57:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:15,863 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:57:15,864 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:57:15,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410238311] [2021-11-23 01:57:15,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410238311] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:15,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:57:15,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:57:15,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574360261] [2021-11-23 01:57:15,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:15,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:57:15,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:57:15,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:57:15,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:57:15,868 INFO L87 Difference]: Start difference. First operand 3250 states and 4587 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-23 01:57:17,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:57:17,385 INFO L93 Difference]: Finished difference Result 3250 states and 4587 transitions. [2021-11-23 01:57:17,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:57:17,386 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 67 [2021-11-23 01:57:17,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:57:17,415 INFO L225 Difference]: With dead ends: 3250 [2021-11-23 01:57:17,416 INFO L226 Difference]: Without dead ends: 3248 [2021-11-23 01:57:17,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:57:17,419 INFO L933 BasicCegarLoop]: 2549 mSDtfsCounter, 2820 mSDsluCounter, 2841 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2822 SdHoareTripleChecker+Valid, 5098 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-23 01:57:17,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2822 Valid, 5098 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-23 01:57:17,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3248 states. [2021-11-23 01:57:17,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3248 to 3248. [2021-11-23 01:57:17,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3248 states, 1842 states have (on average 1.286102062975027) internal successors, (2369), 1980 states have internal predecessors, (2369), 1105 states have call successors, (1105), 278 states have call predecessors, (1105), 277 states have return successors, (1111), 1072 states have call predecessors, (1111), 1103 states have call successors, (1111) [2021-11-23 01:57:17,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3248 states to 3248 states and 4585 transitions. [2021-11-23 01:57:17,644 INFO L78 Accepts]: Start accepts. Automaton has 3248 states and 4585 transitions. Word has length 67 [2021-11-23 01:57:17,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:57:17,646 INFO L470 AbstractCegarLoop]: Abstraction has 3248 states and 4585 transitions. [2021-11-23 01:57:17,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-23 01:57:17,647 INFO L276 IsEmpty]: Start isEmpty. Operand 3248 states and 4585 transitions. [2021-11-23 01:57:17,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-23 01:57:17,649 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:17,649 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:57:17,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 01:57:17,650 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:57:17,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:17,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1178100571, now seen corresponding path program 1 times [2021-11-23 01:57:17,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:57:17,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944381908] [2021-11-23 01:57:17,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:17,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:57:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:17,846 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:57:17,846 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:57:17,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944381908] [2021-11-23 01:57:17,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944381908] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:17,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:57:17,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:57:17,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262936946] [2021-11-23 01:57:17,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:17,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:57:17,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:57:17,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:57:17,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:57:17,849 INFO L87 Difference]: Start difference. First operand 3248 states and 4585 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 01:57:19,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:57:19,351 INFO L93 Difference]: Finished difference Result 3248 states and 4585 transitions. [2021-11-23 01:57:19,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:57:19,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2021-11-23 01:57:19,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:57:19,382 INFO L225 Difference]: With dead ends: 3248 [2021-11-23 01:57:19,382 INFO L226 Difference]: Without dead ends: 3246 [2021-11-23 01:57:19,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:57:19,387 INFO L933 BasicCegarLoop]: 2547 mSDtfsCounter, 2817 mSDsluCounter, 2839 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2819 SdHoareTripleChecker+Valid, 5094 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-23 01:57:19,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2819 Valid, 5094 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-23 01:57:19,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3246 states. [2021-11-23 01:57:19,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3246 to 3246. [2021-11-23 01:57:19,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3246 states, 1841 states have (on average 1.2857142857142858) internal successors, (2367), 1978 states have internal predecessors, (2367), 1105 states have call successors, (1105), 278 states have call predecessors, (1105), 277 states have return successors, (1111), 1072 states have call predecessors, (1111), 1103 states have call successors, (1111) [2021-11-23 01:57:19,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3246 states to 3246 states and 4583 transitions. [2021-11-23 01:57:19,635 INFO L78 Accepts]: Start accepts. Automaton has 3246 states and 4583 transitions. Word has length 72 [2021-11-23 01:57:19,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:57:19,636 INFO L470 AbstractCegarLoop]: Abstraction has 3246 states and 4583 transitions. [2021-11-23 01:57:19,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 01:57:19,636 INFO L276 IsEmpty]: Start isEmpty. Operand 3246 states and 4583 transitions. [2021-11-23 01:57:19,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-23 01:57:19,640 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:19,640 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:57:19,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 01:57:19,640 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:57:19,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:19,641 INFO L85 PathProgramCache]: Analyzing trace with hash 466079079, now seen corresponding path program 1 times [2021-11-23 01:57:19,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:57:19,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931656191] [2021-11-23 01:57:19,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:19,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:57:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:19,809 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:57:19,809 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:57:19,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931656191] [2021-11-23 01:57:19,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931656191] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:19,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:57:19,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:57:19,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250659609] [2021-11-23 01:57:19,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:19,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:57:19,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:57:19,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:57:19,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:57:19,812 INFO L87 Difference]: Start difference. First operand 3246 states and 4583 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-23 01:57:21,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:57:21,519 INFO L93 Difference]: Finished difference Result 3246 states and 4583 transitions. [2021-11-23 01:57:21,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:57:21,520 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 77 [2021-11-23 01:57:21,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:57:21,548 INFO L225 Difference]: With dead ends: 3246 [2021-11-23 01:57:21,548 INFO L226 Difference]: Without dead ends: 3244 [2021-11-23 01:57:21,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:57:21,552 INFO L933 BasicCegarLoop]: 2545 mSDtfsCounter, 2814 mSDsluCounter, 2837 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2816 SdHoareTripleChecker+Valid, 5090 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-23 01:57:21,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2816 Valid, 5090 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-23 01:57:21,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3244 states. [2021-11-23 01:57:21,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3244 to 3244. [2021-11-23 01:57:21,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3244 states, 1840 states have (on average 1.2853260869565217) internal successors, (2365), 1976 states have internal predecessors, (2365), 1105 states have call successors, (1105), 278 states have call predecessors, (1105), 277 states have return successors, (1111), 1072 states have call predecessors, (1111), 1103 states have call successors, (1111) [2021-11-23 01:57:21,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3244 states to 3244 states and 4581 transitions. [2021-11-23 01:57:21,781 INFO L78 Accepts]: Start accepts. Automaton has 3244 states and 4581 transitions. Word has length 77 [2021-11-23 01:57:21,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:57:21,782 INFO L470 AbstractCegarLoop]: Abstraction has 3244 states and 4581 transitions. [2021-11-23 01:57:21,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-23 01:57:21,782 INFO L276 IsEmpty]: Start isEmpty. Operand 3244 states and 4581 transitions. [2021-11-23 01:57:21,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-23 01:57:21,787 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:21,787 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:57:21,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 01:57:21,789 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_net_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:57:21,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:21,790 INFO L85 PathProgramCache]: Analyzing trace with hash -2104542977, now seen corresponding path program 1 times [2021-11-23 01:57:21,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:57:21,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009110793] [2021-11-23 01:57:21,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:21,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:57:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:21,945 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 01:57:21,946 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:57:21,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009110793] [2021-11-23 01:57:21,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009110793] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:21,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:57:21,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 01:57:21,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163639961] [2021-11-23 01:57:21,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:21,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:57:21,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:57:21,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:57:21,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:57:21,949 INFO L87 Difference]: Start difference. First operand 3244 states and 4581 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-23 01:57:22,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:57:22,927 INFO L93 Difference]: Finished difference Result 6464 states and 9133 transitions. [2021-11-23 01:57:22,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:57:22,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 86 [2021-11-23 01:57:22,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:57:22,963 INFO L225 Difference]: With dead ends: 6464 [2021-11-23 01:57:22,970 INFO L226 Difference]: Without dead ends: 3238 [2021-11-23 01:57:22,987 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 01:57:22,988 INFO L933 BasicCegarLoop]: 2541 mSDtfsCounter, 2825 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2825 SdHoareTripleChecker+Valid, 2541 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 01:57:22,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2825 Valid, 2541 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 01:57:22,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3238 states. [2021-11-23 01:57:23,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3238 to 3238. [2021-11-23 01:57:23,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3238 states, 1835 states have (on average 1.283923705722071) internal successors, (2356), 1970 states have internal predecessors, (2356), 1105 states have call successors, (1105), 278 states have call predecessors, (1105), 277 states have return successors, (1111), 1072 states have call predecessors, (1111), 1103 states have call successors, (1111) [2021-11-23 01:57:23,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3238 states to 3238 states and 4572 transitions. [2021-11-23 01:57:23,197 INFO L78 Accepts]: Start accepts. Automaton has 3238 states and 4572 transitions. Word has length 86 [2021-11-23 01:57:23,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:57:23,198 INFO L470 AbstractCegarLoop]: Abstraction has 3238 states and 4572 transitions. [2021-11-23 01:57:23,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-23 01:57:23,199 INFO L276 IsEmpty]: Start isEmpty. Operand 3238 states and 4572 transitions. [2021-11-23 01:57:23,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-23 01:57:23,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:23,204 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:57:23,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 01:57:23,205 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:57:23,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:23,205 INFO L85 PathProgramCache]: Analyzing trace with hash 2032356170, now seen corresponding path program 1 times [2021-11-23 01:57:23,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:57:23,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024782322] [2021-11-23 01:57:23,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:23,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:57:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:23,444 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-23 01:57:23,445 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:57:23,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024782322] [2021-11-23 01:57:23,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024782322] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:23,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:57:23,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 01:57:23,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334510795] [2021-11-23 01:57:23,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:23,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 01:57:23,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:57:23,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 01:57:23,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 01:57:23,449 INFO L87 Difference]: Start difference. First operand 3238 states and 4572 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 01:57:29,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:57:29,021 INFO L93 Difference]: Finished difference Result 4324 states and 6076 transitions. [2021-11-23 01:57:29,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 01:57:29,024 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 95 [2021-11-23 01:57:29,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:57:29,064 INFO L225 Difference]: With dead ends: 4324 [2021-11-23 01:57:29,064 INFO L226 Difference]: Without dead ends: 4322 [2021-11-23 01:57:29,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-23 01:57:29,070 INFO L933 BasicCegarLoop]: 3406 mSDtfsCounter, 2636 mSDsluCounter, 11605 mSDsCounter, 0 mSdLazyCounter, 2786 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2642 SdHoareTripleChecker+Valid, 13863 SdHoareTripleChecker+Invalid, 2789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-11-23 01:57:29,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2642 Valid, 13863 Invalid, 2789 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2786 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-11-23 01:57:29,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4322 states. [2021-11-23 01:57:29,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4322 to 4303. [2021-11-23 01:57:29,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4303 states, 2428 states have (on average 1.2821252059308073) internal successors, (3113), 2611 states have internal predecessors, (3113), 1461 states have call successors, (1461), 395 states have call predecessors, (1461), 393 states have return successors, (1481), 1412 states have call predecessors, (1481), 1459 states have call successors, (1481) [2021-11-23 01:57:29,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4303 states to 4303 states and 6055 transitions. [2021-11-23 01:57:29,363 INFO L78 Accepts]: Start accepts. Automaton has 4303 states and 6055 transitions. Word has length 95 [2021-11-23 01:57:29,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:57:29,364 INFO L470 AbstractCegarLoop]: Abstraction has 4303 states and 6055 transitions. [2021-11-23 01:57:29,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 01:57:29,365 INFO L276 IsEmpty]: Start isEmpty. Operand 4303 states and 6055 transitions. [2021-11-23 01:57:29,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-23 01:57:29,368 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:29,368 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:57:29,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 01:57:29,368 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:57:29,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:29,369 INFO L85 PathProgramCache]: Analyzing trace with hash 863519949, now seen corresponding path program 1 times [2021-11-23 01:57:29,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:57:29,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969662678] [2021-11-23 01:57:29,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:29,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:57:29,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:29,536 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:57:29,536 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:57:29,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969662678] [2021-11-23 01:57:29,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969662678] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:29,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:57:29,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:57:29,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924072985] [2021-11-23 01:57:29,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:29,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:57:29,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:57:29,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:57:29,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:57:29,539 INFO L87 Difference]: Start difference. First operand 4303 states and 6055 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 01:57:31,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:57:31,140 INFO L93 Difference]: Finished difference Result 4303 states and 6055 transitions. [2021-11-23 01:57:31,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:57:31,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 82 [2021-11-23 01:57:31,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:57:31,169 INFO L225 Difference]: With dead ends: 4303 [2021-11-23 01:57:31,169 INFO L226 Difference]: Without dead ends: 4301 [2021-11-23 01:57:31,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:57:31,173 INFO L933 BasicCegarLoop]: 2538 mSDtfsCounter, 2810 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2812 SdHoareTripleChecker+Valid, 5072 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-23 01:57:31,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2812 Valid, 5072 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-23 01:57:31,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4301 states. [2021-11-23 01:57:31,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4301 to 4301. [2021-11-23 01:57:31,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4301 states, 2427 states have (on average 1.2818294190358468) internal successors, (3111), 2609 states have internal predecessors, (3111), 1461 states have call successors, (1461), 395 states have call predecessors, (1461), 393 states have return successors, (1481), 1412 states have call predecessors, (1481), 1459 states have call successors, (1481) [2021-11-23 01:57:31,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4301 states to 4301 states and 6053 transitions. [2021-11-23 01:57:31,505 INFO L78 Accepts]: Start accepts. Automaton has 4301 states and 6053 transitions. Word has length 82 [2021-11-23 01:57:31,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:57:31,506 INFO L470 AbstractCegarLoop]: Abstraction has 4301 states and 6053 transitions. [2021-11-23 01:57:31,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 01:57:31,506 INFO L276 IsEmpty]: Start isEmpty. Operand 4301 states and 6053 transitions. [2021-11-23 01:57:31,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-23 01:57:31,509 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:31,509 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:57:31,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 01:57:31,510 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:57:31,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:31,510 INFO L85 PathProgramCache]: Analyzing trace with hash -60011918, now seen corresponding path program 1 times [2021-11-23 01:57:31,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:57:31,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069835216] [2021-11-23 01:57:31,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:31,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:57:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:31,697 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-23 01:57:31,698 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:57:31,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069835216] [2021-11-23 01:57:31,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069835216] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:31,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:57:31,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 01:57:31,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104504413] [2021-11-23 01:57:31,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:31,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:57:31,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:57:31,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:57:31,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:57:31,701 INFO L87 Difference]: Start difference. First operand 4301 states and 6053 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 01:57:32,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:57:32,727 INFO L93 Difference]: Finished difference Result 8576 states and 12130 transitions. [2021-11-23 01:57:32,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:57:32,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 98 [2021-11-23 01:57:32,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:57:32,757 INFO L225 Difference]: With dead ends: 8576 [2021-11-23 01:57:32,757 INFO L226 Difference]: Without dead ends: 4293 [2021-11-23 01:57:32,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:57:32,791 INFO L933 BasicCegarLoop]: 2534 mSDtfsCounter, 2796 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2796 SdHoareTripleChecker+Valid, 2534 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 01:57:32,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2796 Valid, 2534 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 01:57:32,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4293 states. [2021-11-23 01:57:33,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4293 to 4293. [2021-11-23 01:57:33,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4293 states, 2420 states have (on average 1.2801652892561983) internal successors, (3098), 2601 states have internal predecessors, (3098), 1461 states have call successors, (1461), 395 states have call predecessors, (1461), 393 states have return successors, (1481), 1412 states have call predecessors, (1481), 1459 states have call successors, (1481) [2021-11-23 01:57:33,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4293 states to 4293 states and 6040 transitions. [2021-11-23 01:57:33,175 INFO L78 Accepts]: Start accepts. Automaton has 4293 states and 6040 transitions. Word has length 98 [2021-11-23 01:57:33,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:57:33,176 INFO L470 AbstractCegarLoop]: Abstraction has 4293 states and 6040 transitions. [2021-11-23 01:57:33,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 01:57:33,177 INFO L276 IsEmpty]: Start isEmpty. Operand 4293 states and 6040 transitions. [2021-11-23 01:57:33,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-23 01:57:33,179 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:33,179 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:57:33,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 01:57:33,180 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:57:33,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:33,180 INFO L85 PathProgramCache]: Analyzing trace with hash 914124432, now seen corresponding path program 1 times [2021-11-23 01:57:33,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:57:33,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116654411] [2021-11-23 01:57:33,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:33,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:57:33,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:33,317 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:57:33,318 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:57:33,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116654411] [2021-11-23 01:57:33,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116654411] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:33,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:57:33,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:57:33,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824326336] [2021-11-23 01:57:33,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:33,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:57:33,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:57:33,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:57:33,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:57:33,321 INFO L87 Difference]: Start difference. First operand 4293 states and 6040 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 01:57:34,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:57:34,835 INFO L93 Difference]: Finished difference Result 4293 states and 6040 transitions. [2021-11-23 01:57:34,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:57:34,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 84 [2021-11-23 01:57:34,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:57:34,861 INFO L225 Difference]: With dead ends: 4293 [2021-11-23 01:57:34,861 INFO L226 Difference]: Without dead ends: 4291 [2021-11-23 01:57:34,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:57:34,866 INFO L933 BasicCegarLoop]: 2531 mSDtfsCounter, 2797 mSDsluCounter, 2823 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2799 SdHoareTripleChecker+Valid, 5062 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-23 01:57:34,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2799 Valid, 5062 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-23 01:57:34,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4291 states. [2021-11-23 01:57:35,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4291 to 4291. [2021-11-23 01:57:35,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4291 states, 2419 states have (on average 1.2798677139313765) internal successors, (3096), 2599 states have internal predecessors, (3096), 1461 states have call successors, (1461), 395 states have call predecessors, (1461), 393 states have return successors, (1481), 1412 states have call predecessors, (1481), 1459 states have call successors, (1481) [2021-11-23 01:57:35,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4291 states to 4291 states and 6038 transitions. [2021-11-23 01:57:35,216 INFO L78 Accepts]: Start accepts. Automaton has 4291 states and 6038 transitions. Word has length 84 [2021-11-23 01:57:35,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:57:35,217 INFO L470 AbstractCegarLoop]: Abstraction has 4291 states and 6038 transitions. [2021-11-23 01:57:35,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 01:57:35,217 INFO L276 IsEmpty]: Start isEmpty. Operand 4291 states and 6038 transitions. [2021-11-23 01:57:35,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-23 01:57:35,220 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:35,220 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:57:35,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 01:57:35,220 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:57:35,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:35,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1540357246, now seen corresponding path program 1 times [2021-11-23 01:57:35,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:57:35,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256067492] [2021-11-23 01:57:35,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:35,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:57:35,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:35,415 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-11-23 01:57:35,415 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:57:35,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256067492] [2021-11-23 01:57:35,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256067492] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:35,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:57:35,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 01:57:35,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778105841] [2021-11-23 01:57:35,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:35,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 01:57:35,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:57:35,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 01:57:35,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:57:35,418 INFO L87 Difference]: Start difference. First operand 4291 states and 6038 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-23 01:57:37,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:57:37,611 INFO L93 Difference]: Finished difference Result 4421 states and 6166 transitions. [2021-11-23 01:57:37,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 01:57:37,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 94 [2021-11-23 01:57:37,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:57:37,636 INFO L225 Difference]: With dead ends: 4421 [2021-11-23 01:57:37,636 INFO L226 Difference]: Without dead ends: 4419 [2021-11-23 01:57:37,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 01:57:37,641 INFO L933 BasicCegarLoop]: 2573 mSDtfsCounter, 2748 mSDsluCounter, 5843 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2750 SdHoareTripleChecker+Valid, 7813 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-23 01:57:37,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2750 Valid, 7813 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-23 01:57:37,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4419 states. [2021-11-23 01:57:37,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4419 to 4417. [2021-11-23 01:57:37,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4417 states, 2486 states have (on average 1.2735317779565567) internal successors, (3166), 2667 states have internal predecessors, (3166), 1488 states have call successors, (1488), 427 states have call predecessors, (1488), 425 states have return successors, (1508), 1438 states have call predecessors, (1508), 1486 states have call successors, (1508) [2021-11-23 01:57:37,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4417 states to 4417 states and 6162 transitions. [2021-11-23 01:57:37,997 INFO L78 Accepts]: Start accepts. Automaton has 4417 states and 6162 transitions. Word has length 94 [2021-11-23 01:57:37,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:57:37,998 INFO L470 AbstractCegarLoop]: Abstraction has 4417 states and 6162 transitions. [2021-11-23 01:57:37,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-23 01:57:37,998 INFO L276 IsEmpty]: Start isEmpty. Operand 4417 states and 6162 transitions. [2021-11-23 01:57:38,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-23 01:57:38,000 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:38,001 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:57:38,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-23 01:57:38,001 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:57:38,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:38,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1107165525, now seen corresponding path program 1 times [2021-11-23 01:57:38,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:57:38,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321846903] [2021-11-23 01:57:38,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:38,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:57:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:38,194 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-11-23 01:57:38,194 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:57:38,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321846903] [2021-11-23 01:57:38,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321846903] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:38,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:57:38,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 01:57:38,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83155599] [2021-11-23 01:57:38,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:38,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 01:57:38,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:57:38,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 01:57:38,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:57:38,198 INFO L87 Difference]: Start difference. First operand 4417 states and 6162 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-23 01:57:40,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:57:40,866 INFO L93 Difference]: Finished difference Result 5286 states and 7187 transitions. [2021-11-23 01:57:40,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 01:57:40,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 94 [2021-11-23 01:57:40,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:57:40,889 INFO L225 Difference]: With dead ends: 5286 [2021-11-23 01:57:40,890 INFO L226 Difference]: Without dead ends: 5284 [2021-11-23 01:57:40,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 01:57:40,893 INFO L933 BasicCegarLoop]: 2696 mSDtfsCounter, 1829 mSDsluCounter, 7482 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1831 SdHoareTripleChecker+Valid, 9417 SdHoareTripleChecker+Invalid, 1085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-23 01:57:40,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1831 Valid, 9417 Invalid, 1085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-23 01:57:40,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5284 states. [2021-11-23 01:57:41,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5284 to 5249. [2021-11-23 01:57:41,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 2926 states have (on average 1.2570061517429938) internal successors, (3678), 3126 states have internal predecessors, (3678), 1731 states have call successors, (1731), 582 states have call predecessors, (1731), 574 states have return successors, (1753), 1662 states have call predecessors, (1753), 1729 states have call successors, (1753) [2021-11-23 01:57:41,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 7162 transitions. [2021-11-23 01:57:41,276 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 7162 transitions. Word has length 94 [2021-11-23 01:57:41,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:57:41,277 INFO L470 AbstractCegarLoop]: Abstraction has 5249 states and 7162 transitions. [2021-11-23 01:57:41,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-23 01:57:41,277 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 7162 transitions. [2021-11-23 01:57:41,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-23 01:57:41,280 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:41,280 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:57:41,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-23 01:57:41,280 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_usb_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:57:41,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:41,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1866610554, now seen corresponding path program 1 times [2021-11-23 01:57:41,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:57:41,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488939362] [2021-11-23 01:57:41,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:41,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:57:41,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:41,447 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-11-23 01:57:41,447 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:57:41,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488939362] [2021-11-23 01:57:41,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488939362] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 01:57:41,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396735321] [2021-11-23 01:57:41,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:41,448 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 01:57:41,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:57:41,456 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 01:57:41,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 01:57:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:42,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 1943 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 01:57:42,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:57:42,657 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 01:57:42,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 01:57:42,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396735321] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:42,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 01:57:42,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2021-11-23 01:57:42,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253783189] [2021-11-23 01:57:42,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:42,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:57:42,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:57:42,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:57:42,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-23 01:57:42,664 INFO L87 Difference]: Start difference. First operand 5249 states and 7162 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-23 01:57:43,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:57:43,728 INFO L93 Difference]: Finished difference Result 10474 states and 14295 transitions. [2021-11-23 01:57:43,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:57:43,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 94 [2021-11-23 01:57:43,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:57:43,758 INFO L225 Difference]: With dead ends: 10474 [2021-11-23 01:57:43,758 INFO L226 Difference]: Without dead ends: 5243 [2021-11-23 01:57:43,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-23 01:57:43,795 INFO L933 BasicCegarLoop]: 2527 mSDtfsCounter, 2802 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2802 SdHoareTripleChecker+Valid, 2527 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 01:57:43,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2802 Valid, 2527 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 01:57:43,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5243 states. [2021-11-23 01:57:44,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5243 to 5243. [2021-11-23 01:57:44,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 2921 states have (on average 1.2560766860664156) internal successors, (3669), 3120 states have internal predecessors, (3669), 1731 states have call successors, (1731), 582 states have call predecessors, (1731), 574 states have return successors, (1753), 1662 states have call predecessors, (1753), 1729 states have call successors, (1753) [2021-11-23 01:57:44,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 7153 transitions. [2021-11-23 01:57:44,326 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 7153 transitions. Word has length 94 [2021-11-23 01:57:44,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:57:44,326 INFO L470 AbstractCegarLoop]: Abstraction has 5243 states and 7153 transitions. [2021-11-23 01:57:44,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-23 01:57:44,327 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 7153 transitions. [2021-11-23 01:57:44,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-23 01:57:44,329 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:44,330 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:57:44,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 01:57:44,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-23 01:57:44,552 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:57:44,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:44,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1927681008, now seen corresponding path program 1 times [2021-11-23 01:57:44,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:57:44,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356895734] [2021-11-23 01:57:44,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:44,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:57:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:44,747 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:57:44,747 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:57:44,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356895734] [2021-11-23 01:57:44,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356895734] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:44,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:57:44,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:57:44,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602387803] [2021-11-23 01:57:44,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:44,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:57:44,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:57:44,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:57:44,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:57:44,750 INFO L87 Difference]: Start difference. First operand 5243 states and 7153 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-23 01:57:46,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:57:46,272 INFO L93 Difference]: Finished difference Result 5243 states and 7153 transitions. [2021-11-23 01:57:46,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:57:46,276 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 89 [2021-11-23 01:57:46,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:57:46,307 INFO L225 Difference]: With dead ends: 5243 [2021-11-23 01:57:46,308 INFO L226 Difference]: Without dead ends: 5241 [2021-11-23 01:57:46,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:57:46,313 INFO L933 BasicCegarLoop]: 2524 mSDtfsCounter, 2791 mSDsluCounter, 2816 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2793 SdHoareTripleChecker+Valid, 5048 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-23 01:57:46,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2793 Valid, 5048 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-23 01:57:46,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5241 states. [2021-11-23 01:57:46,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5241 to 5241. [2021-11-23 01:57:46,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5241 states, 2920 states have (on average 1.2554794520547945) internal successors, (3666), 3118 states have internal predecessors, (3666), 1731 states have call successors, (1731), 582 states have call predecessors, (1731), 574 states have return successors, (1753), 1662 states have call predecessors, (1753), 1729 states have call successors, (1753) [2021-11-23 01:57:46,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5241 states to 5241 states and 7150 transitions. [2021-11-23 01:57:46,888 INFO L78 Accepts]: Start accepts. Automaton has 5241 states and 7150 transitions. Word has length 89 [2021-11-23 01:57:46,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:57:46,889 INFO L470 AbstractCegarLoop]: Abstraction has 5241 states and 7150 transitions. [2021-11-23 01:57:46,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-23 01:57:46,889 INFO L276 IsEmpty]: Start isEmpty. Operand 5241 states and 7150 transitions. [2021-11-23 01:57:46,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-23 01:57:46,892 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:46,892 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:57:46,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-23 01:57:46,893 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:57:46,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:46,893 INFO L85 PathProgramCache]: Analyzing trace with hash 164489457, now seen corresponding path program 1 times [2021-11-23 01:57:46,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:57:46,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770652850] [2021-11-23 01:57:46,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:46,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:57:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:47,038 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:57:47,038 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:57:47,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770652850] [2021-11-23 01:57:47,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770652850] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:47,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:57:47,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:57:47,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285408757] [2021-11-23 01:57:47,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:47,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:57:47,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:57:47,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:57:47,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:57:47,042 INFO L87 Difference]: Start difference. First operand 5241 states and 7150 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-23 01:57:48,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:57:48,754 INFO L93 Difference]: Finished difference Result 5241 states and 7150 transitions. [2021-11-23 01:57:48,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:57:48,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 94 [2021-11-23 01:57:48,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:57:48,782 INFO L225 Difference]: With dead ends: 5241 [2021-11-23 01:57:48,782 INFO L226 Difference]: Without dead ends: 5239 [2021-11-23 01:57:48,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:57:48,788 INFO L933 BasicCegarLoop]: 2522 mSDtfsCounter, 2788 mSDsluCounter, 2814 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2790 SdHoareTripleChecker+Valid, 5044 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-23 01:57:48,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2790 Valid, 5044 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-23 01:57:48,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5239 states. [2021-11-23 01:57:49,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5239 to 5239. [2021-11-23 01:57:49,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5239 states, 2919 states have (on average 1.2548818088386433) internal successors, (3663), 3116 states have internal predecessors, (3663), 1731 states have call successors, (1731), 582 states have call predecessors, (1731), 574 states have return successors, (1753), 1662 states have call predecessors, (1753), 1729 states have call successors, (1753) [2021-11-23 01:57:49,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 7147 transitions. [2021-11-23 01:57:49,344 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 7147 transitions. Word has length 94 [2021-11-23 01:57:49,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:57:49,345 INFO L470 AbstractCegarLoop]: Abstraction has 5239 states and 7147 transitions. [2021-11-23 01:57:49,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-23 01:57:49,346 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 7147 transitions. [2021-11-23 01:57:49,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-23 01:57:49,349 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:49,349 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:57:49,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-23 01:57:49,350 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:57:49,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:49,352 INFO L85 PathProgramCache]: Analyzing trace with hash -894386717, now seen corresponding path program 1 times [2021-11-23 01:57:49,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:57:49,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335759190] [2021-11-23 01:57:49,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:49,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:57:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:49,495 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:57:49,496 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:57:49,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335759190] [2021-11-23 01:57:49,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335759190] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:49,496 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:57:49,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:57:49,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94634908] [2021-11-23 01:57:49,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:49,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:57:49,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:57:49,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:57:49,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:57:49,501 INFO L87 Difference]: Start difference. First operand 5239 states and 7147 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-23 01:57:51,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:57:51,261 INFO L93 Difference]: Finished difference Result 5239 states and 7147 transitions. [2021-11-23 01:57:51,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:57:51,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 99 [2021-11-23 01:57:51,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:57:51,289 INFO L225 Difference]: With dead ends: 5239 [2021-11-23 01:57:51,289 INFO L226 Difference]: Without dead ends: 5237 [2021-11-23 01:57:51,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:57:51,295 INFO L933 BasicCegarLoop]: 2520 mSDtfsCounter, 2785 mSDsluCounter, 2812 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2787 SdHoareTripleChecker+Valid, 5040 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-23 01:57:51,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2787 Valid, 5040 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-23 01:57:51,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5237 states. [2021-11-23 01:57:51,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5237 to 5237. [2021-11-23 01:57:51,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5237 states, 2918 states have (on average 1.2542837559972584) internal successors, (3660), 3114 states have internal predecessors, (3660), 1731 states have call successors, (1731), 582 states have call predecessors, (1731), 574 states have return successors, (1753), 1662 states have call predecessors, (1753), 1729 states have call successors, (1753) [2021-11-23 01:57:51,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 7144 transitions. [2021-11-23 01:57:51,803 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 7144 transitions. Word has length 99 [2021-11-23 01:57:51,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:57:51,804 INFO L470 AbstractCegarLoop]: Abstraction has 5237 states and 7144 transitions. [2021-11-23 01:57:51,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-23 01:57:51,804 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 7144 transitions. [2021-11-23 01:57:51,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-23 01:57:51,807 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:51,808 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:57:51,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-23 01:57:51,810 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:57:51,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:51,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1501052463, now seen corresponding path program 1 times [2021-11-23 01:57:51,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:57:51,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795957480] [2021-11-23 01:57:51,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:51,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:57:51,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:51,965 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:57:51,966 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:57:51,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795957480] [2021-11-23 01:57:51,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795957480] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:51,966 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:57:51,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:57:51,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128567684] [2021-11-23 01:57:51,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:51,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:57:51,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:57:51,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:57:51,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:57:51,970 INFO L87 Difference]: Start difference. First operand 5237 states and 7144 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-23 01:57:54,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:57:54,207 INFO L93 Difference]: Finished difference Result 5237 states and 7144 transitions. [2021-11-23 01:57:54,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:57:54,212 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 104 [2021-11-23 01:57:54,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:57:54,236 INFO L225 Difference]: With dead ends: 5237 [2021-11-23 01:57:54,236 INFO L226 Difference]: Without dead ends: 5235 [2021-11-23 01:57:54,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:57:54,241 INFO L933 BasicCegarLoop]: 2518 mSDtfsCounter, 2782 mSDsluCounter, 2810 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2784 SdHoareTripleChecker+Valid, 5036 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-23 01:57:54,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2784 Valid, 5036 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-23 01:57:54,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5235 states. [2021-11-23 01:57:54,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5235 to 5235. [2021-11-23 01:57:54,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5235 states, 2917 states have (on average 1.253685293109359) internal successors, (3657), 3112 states have internal predecessors, (3657), 1731 states have call successors, (1731), 582 states have call predecessors, (1731), 574 states have return successors, (1753), 1662 states have call predecessors, (1753), 1729 states have call successors, (1753) [2021-11-23 01:57:54,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5235 states to 5235 states and 7141 transitions. [2021-11-23 01:57:54,770 INFO L78 Accepts]: Start accepts. Automaton has 5235 states and 7141 transitions. Word has length 104 [2021-11-23 01:57:54,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:57:54,771 INFO L470 AbstractCegarLoop]: Abstraction has 5235 states and 7141 transitions. [2021-11-23 01:57:54,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-23 01:57:54,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5235 states and 7141 transitions. [2021-11-23 01:57:54,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-23 01:57:54,775 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:54,775 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:57:54,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-23 01:57:54,777 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:57:54,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:54,777 INFO L85 PathProgramCache]: Analyzing trace with hash 116282394, now seen corresponding path program 1 times [2021-11-23 01:57:54,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:57:54,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091072463] [2021-11-23 01:57:54,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:54,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:57:54,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:54,943 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2021-11-23 01:57:54,943 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:57:54,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091072463] [2021-11-23 01:57:54,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091072463] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:54,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:57:54,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 01:57:54,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111613374] [2021-11-23 01:57:54,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:54,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 01:57:54,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:57:54,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 01:57:54,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:57:54,948 INFO L87 Difference]: Start difference. First operand 5235 states and 7141 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-23 01:57:57,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:57:57,648 INFO L93 Difference]: Finished difference Result 5237 states and 7142 transitions. [2021-11-23 01:57:57,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 01:57:57,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 116 [2021-11-23 01:57:57,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:57:57,674 INFO L225 Difference]: With dead ends: 5237 [2021-11-23 01:57:57,675 INFO L226 Difference]: Without dead ends: 5235 [2021-11-23 01:57:57,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 01:57:57,680 INFO L933 BasicCegarLoop]: 2551 mSDtfsCounter, 105 mSDsluCounter, 8467 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 10132 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-23 01:57:57,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 10132 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-23 01:57:57,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5235 states. [2021-11-23 01:57:58,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5235 to 5235. [2021-11-23 01:57:58,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5235 states, 2917 states have (on average 1.2529996571820363) internal successors, (3655), 3112 states have internal predecessors, (3655), 1731 states have call successors, (1731), 582 states have call predecessors, (1731), 574 states have return successors, (1753), 1662 states have call predecessors, (1753), 1729 states have call successors, (1753) [2021-11-23 01:57:58,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5235 states to 5235 states and 7139 transitions. [2021-11-23 01:57:58,229 INFO L78 Accepts]: Start accepts. Automaton has 5235 states and 7139 transitions. Word has length 116 [2021-11-23 01:57:58,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:57:58,230 INFO L470 AbstractCegarLoop]: Abstraction has 5235 states and 7139 transitions. [2021-11-23 01:57:58,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-23 01:57:58,231 INFO L276 IsEmpty]: Start isEmpty. Operand 5235 states and 7139 transitions. [2021-11-23 01:57:58,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-23 01:57:58,235 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:57:58,235 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:57:58,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-23 01:57:58,236 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:57:58,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:57:58,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1497234248, now seen corresponding path program 1 times [2021-11-23 01:57:58,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:57:58,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076438502] [2021-11-23 01:57:58,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:57:58,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:57:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:57:58,384 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:57:58,385 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:57:58,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076438502] [2021-11-23 01:57:58,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076438502] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:57:58,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:57:58,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:57:58,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697244267] [2021-11-23 01:57:58,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:57:58,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:57:58,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:57:58,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:57:58,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:57:58,391 INFO L87 Difference]: Start difference. First operand 5235 states and 7139 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-23 01:58:00,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:58:00,052 INFO L93 Difference]: Finished difference Result 5235 states and 7139 transitions. [2021-11-23 01:58:00,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:58:00,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 109 [2021-11-23 01:58:00,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:58:00,077 INFO L225 Difference]: With dead ends: 5235 [2021-11-23 01:58:00,077 INFO L226 Difference]: Without dead ends: 5233 [2021-11-23 01:58:00,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:58:00,081 INFO L933 BasicCegarLoop]: 2516 mSDtfsCounter, 2779 mSDsluCounter, 2808 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2781 SdHoareTripleChecker+Valid, 5032 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-23 01:58:00,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2781 Valid, 5032 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-23 01:58:00,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5233 states. [2021-11-23 01:58:00,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5233 to 5233. [2021-11-23 01:58:00,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 2916 states have (on average 1.252400548696845) internal successors, (3652), 3110 states have internal predecessors, (3652), 1731 states have call successors, (1731), 582 states have call predecessors, (1731), 574 states have return successors, (1753), 1662 states have call predecessors, (1753), 1729 states have call successors, (1753) [2021-11-23 01:58:00,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 7136 transitions. [2021-11-23 01:58:00,526 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 7136 transitions. Word has length 109 [2021-11-23 01:58:00,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:58:00,526 INFO L470 AbstractCegarLoop]: Abstraction has 5233 states and 7136 transitions. [2021-11-23 01:58:00,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-23 01:58:00,526 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 7136 transitions. [2021-11-23 01:58:00,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-23 01:58:00,530 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:00,530 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:58:00,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-23 01:58:00,531 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:58:00,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:00,531 INFO L85 PathProgramCache]: Analyzing trace with hash -2029154575, now seen corresponding path program 1 times [2021-11-23 01:58:00,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:00,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117170195] [2021-11-23 01:58:00,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:00,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:00,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:00,687 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:58:00,688 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:00,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117170195] [2021-11-23 01:58:00,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117170195] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:58:00,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:58:00,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:58:00,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785389944] [2021-11-23 01:58:00,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:58:00,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:58:00,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:58:00,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:58:00,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:58:00,691 INFO L87 Difference]: Start difference. First operand 5233 states and 7136 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-23 01:58:02,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:58:02,438 INFO L93 Difference]: Finished difference Result 5233 states and 7136 transitions. [2021-11-23 01:58:02,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:58:02,439 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 114 [2021-11-23 01:58:02,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:58:02,457 INFO L225 Difference]: With dead ends: 5233 [2021-11-23 01:58:02,457 INFO L226 Difference]: Without dead ends: 5231 [2021-11-23 01:58:02,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:58:02,462 INFO L933 BasicCegarLoop]: 2514 mSDtfsCounter, 2776 mSDsluCounter, 2806 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2778 SdHoareTripleChecker+Valid, 5028 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-23 01:58:02,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2778 Valid, 5028 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-23 01:58:02,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5231 states. [2021-11-23 01:58:02,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5231 to 5231. [2021-11-23 01:58:02,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5231 states, 2915 states have (on average 1.2518010291595196) internal successors, (3649), 3108 states have internal predecessors, (3649), 1731 states have call successors, (1731), 582 states have call predecessors, (1731), 574 states have return successors, (1753), 1662 states have call predecessors, (1753), 1729 states have call successors, (1753) [2021-11-23 01:58:02,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5231 states to 5231 states and 7133 transitions. [2021-11-23 01:58:02,952 INFO L78 Accepts]: Start accepts. Automaton has 5231 states and 7133 transitions. Word has length 114 [2021-11-23 01:58:02,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:58:02,953 INFO L470 AbstractCegarLoop]: Abstraction has 5231 states and 7133 transitions. [2021-11-23 01:58:02,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-23 01:58:02,953 INFO L276 IsEmpty]: Start isEmpty. Operand 5231 states and 7133 transitions. [2021-11-23 01:58:02,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-23 01:58:02,964 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:02,965 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:58:02,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-23 01:58:02,965 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:58:02,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:02,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1791716102, now seen corresponding path program 1 times [2021-11-23 01:58:02,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:02,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049814996] [2021-11-23 01:58:02,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:02,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:03,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:03,226 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2021-11-23 01:58:03,226 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:03,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049814996] [2021-11-23 01:58:03,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049814996] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:58:03,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:58:03,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 01:58:03,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615818195] [2021-11-23 01:58:03,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:58:03,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 01:58:03,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:58:03,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 01:58:03,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:58:03,229 INFO L87 Difference]: Start difference. First operand 5231 states and 7133 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-23 01:58:05,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:58:05,492 INFO L93 Difference]: Finished difference Result 5254 states and 7148 transitions. [2021-11-23 01:58:05,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 01:58:05,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 131 [2021-11-23 01:58:05,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:58:05,516 INFO L225 Difference]: With dead ends: 5254 [2021-11-23 01:58:05,516 INFO L226 Difference]: Without dead ends: 5252 [2021-11-23 01:58:05,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 01:58:05,520 INFO L933 BasicCegarLoop]: 2893 mSDtfsCounter, 1451 mSDsluCounter, 8344 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1452 SdHoareTripleChecker+Valid, 10288 SdHoareTripleChecker+Invalid, 1321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-23 01:58:05,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1452 Valid, 10288 Invalid, 1321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-23 01:58:05,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5252 states. [2021-11-23 01:58:05,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5252 to 5231. [2021-11-23 01:58:05,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5231 states, 2915 states have (on average 1.2507718696397943) internal successors, (3646), 3108 states have internal predecessors, (3646), 1731 states have call successors, (1731), 582 states have call predecessors, (1731), 574 states have return successors, (1753), 1662 states have call predecessors, (1753), 1729 states have call successors, (1753) [2021-11-23 01:58:05,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5231 states to 5231 states and 7130 transitions. [2021-11-23 01:58:05,967 INFO L78 Accepts]: Start accepts. Automaton has 5231 states and 7130 transitions. Word has length 131 [2021-11-23 01:58:05,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:58:05,967 INFO L470 AbstractCegarLoop]: Abstraction has 5231 states and 7130 transitions. [2021-11-23 01:58:05,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-23 01:58:05,968 INFO L276 IsEmpty]: Start isEmpty. Operand 5231 states and 7130 transitions. [2021-11-23 01:58:05,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-23 01:58:05,972 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:05,972 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:58:05,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-23 01:58:05,973 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:58:05,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:05,973 INFO L85 PathProgramCache]: Analyzing trace with hash 172466667, now seen corresponding path program 1 times [2021-11-23 01:58:05,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:05,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725973943] [2021-11-23 01:58:05,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:05,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:06,182 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:58:06,183 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:06,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725973943] [2021-11-23 01:58:06,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725973943] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:58:06,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:58:06,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:58:06,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183459428] [2021-11-23 01:58:06,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:58:06,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:58:06,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:58:06,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:58:06,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:58:06,186 INFO L87 Difference]: Start difference. First operand 5231 states and 7130 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-23 01:58:07,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:58:07,630 INFO L93 Difference]: Finished difference Result 5231 states and 7130 transitions. [2021-11-23 01:58:07,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:58:07,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 119 [2021-11-23 01:58:07,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:58:07,648 INFO L225 Difference]: With dead ends: 5231 [2021-11-23 01:58:07,648 INFO L226 Difference]: Without dead ends: 5229 [2021-11-23 01:58:07,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:58:07,653 INFO L933 BasicCegarLoop]: 2512 mSDtfsCounter, 2773 mSDsluCounter, 2804 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2775 SdHoareTripleChecker+Valid, 5024 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-23 01:58:07,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2775 Valid, 5024 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-23 01:58:07,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5229 states. [2021-11-23 01:58:08,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5229 to 5229. [2021-11-23 01:58:08,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5229 states, 2914 states have (on average 1.2501715854495539) internal successors, (3643), 3106 states have internal predecessors, (3643), 1731 states have call successors, (1731), 582 states have call predecessors, (1731), 574 states have return successors, (1753), 1662 states have call predecessors, (1753), 1729 states have call successors, (1753) [2021-11-23 01:58:08,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5229 states to 5229 states and 7127 transitions. [2021-11-23 01:58:08,120 INFO L78 Accepts]: Start accepts. Automaton has 5229 states and 7127 transitions. Word has length 119 [2021-11-23 01:58:08,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:58:08,121 INFO L470 AbstractCegarLoop]: Abstraction has 5229 states and 7127 transitions. [2021-11-23 01:58:08,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-23 01:58:08,121 INFO L276 IsEmpty]: Start isEmpty. Operand 5229 states and 7127 transitions. [2021-11-23 01:58:08,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-23 01:58:08,125 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:08,126 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:58:08,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-23 01:58:08,126 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:58:08,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:08,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1223084572, now seen corresponding path program 1 times [2021-11-23 01:58:08,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:08,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080816468] [2021-11-23 01:58:08,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:08,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:08,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:08,279 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:58:08,280 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:08,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080816468] [2021-11-23 01:58:08,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080816468] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:58:08,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:58:08,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:58:08,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61954918] [2021-11-23 01:58:08,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:58:08,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:58:08,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:58:08,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:58:08,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:58:08,283 INFO L87 Difference]: Start difference. First operand 5229 states and 7127 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-23 01:58:10,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:58:10,034 INFO L93 Difference]: Finished difference Result 5229 states and 7127 transitions. [2021-11-23 01:58:10,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:58:10,035 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 124 [2021-11-23 01:58:10,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:58:10,059 INFO L225 Difference]: With dead ends: 5229 [2021-11-23 01:58:10,059 INFO L226 Difference]: Without dead ends: 5227 [2021-11-23 01:58:10,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:58:10,063 INFO L933 BasicCegarLoop]: 2510 mSDtfsCounter, 2770 mSDsluCounter, 2802 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2772 SdHoareTripleChecker+Valid, 5020 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-23 01:58:10,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2772 Valid, 5020 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-23 01:58:10,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5227 states. [2021-11-23 01:58:10,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5227 to 5227. [2021-11-23 01:58:10,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5227 states, 2913 states have (on average 1.249570889117748) internal successors, (3640), 3104 states have internal predecessors, (3640), 1731 states have call successors, (1731), 582 states have call predecessors, (1731), 574 states have return successors, (1753), 1662 states have call predecessors, (1753), 1729 states have call successors, (1753) [2021-11-23 01:58:10,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5227 states to 5227 states and 7124 transitions. [2021-11-23 01:58:10,529 INFO L78 Accepts]: Start accepts. Automaton has 5227 states and 7124 transitions. Word has length 124 [2021-11-23 01:58:10,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:58:10,529 INFO L470 AbstractCegarLoop]: Abstraction has 5227 states and 7124 transitions. [2021-11-23 01:58:10,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-23 01:58:10,529 INFO L276 IsEmpty]: Start isEmpty. Operand 5227 states and 7124 transitions. [2021-11-23 01:58:10,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-23 01:58:10,532 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:10,533 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:58:10,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-23 01:58:10,533 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:58:10,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:10,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1377061412, now seen corresponding path program 1 times [2021-11-23 01:58:10,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:10,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455091371] [2021-11-23 01:58:10,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:10,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:10,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:10,671 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:58:10,671 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:10,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455091371] [2021-11-23 01:58:10,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455091371] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:58:10,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:58:10,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:58:10,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741757408] [2021-11-23 01:58:10,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:58:10,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:58:10,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:58:10,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:58:10,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:58:10,674 INFO L87 Difference]: Start difference. First operand 5227 states and 7124 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-23 01:58:11,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:58:11,981 INFO L93 Difference]: Finished difference Result 5227 states and 7124 transitions. [2021-11-23 01:58:11,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:58:11,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 129 [2021-11-23 01:58:11,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:58:12,000 INFO L225 Difference]: With dead ends: 5227 [2021-11-23 01:58:12,000 INFO L226 Difference]: Without dead ends: 5225 [2021-11-23 01:58:12,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:58:12,004 INFO L933 BasicCegarLoop]: 2508 mSDtfsCounter, 2767 mSDsluCounter, 2800 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2769 SdHoareTripleChecker+Valid, 5016 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-23 01:58:12,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2769 Valid, 5016 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-23 01:58:12,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5225 states. [2021-11-23 01:58:12,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5225 to 5225. [2021-11-23 01:58:12,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 2912 states have (on average 1.2489697802197801) internal successors, (3637), 3102 states have internal predecessors, (3637), 1731 states have call successors, (1731), 582 states have call predecessors, (1731), 574 states have return successors, (1753), 1662 states have call predecessors, (1753), 1729 states have call successors, (1753) [2021-11-23 01:58:12,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 7121 transitions. [2021-11-23 01:58:12,506 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 7121 transitions. Word has length 129 [2021-11-23 01:58:12,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:58:12,506 INFO L470 AbstractCegarLoop]: Abstraction has 5225 states and 7121 transitions. [2021-11-23 01:58:12,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-23 01:58:12,507 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 7121 transitions. [2021-11-23 01:58:12,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-23 01:58:12,511 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:12,511 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:58:12,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-23 01:58:12,512 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:58:12,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:12,513 INFO L85 PathProgramCache]: Analyzing trace with hash -212566162, now seen corresponding path program 1 times [2021-11-23 01:58:12,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:12,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062400006] [2021-11-23 01:58:12,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:12,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:12,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:12,640 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:58:12,641 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:12,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062400006] [2021-11-23 01:58:12,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062400006] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:58:12,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:58:12,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:58:12,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232633026] [2021-11-23 01:58:12,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:58:12,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:58:12,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:58:12,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:58:12,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:58:12,644 INFO L87 Difference]: Start difference. First operand 5225 states and 7121 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-23 01:58:14,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:58:14,397 INFO L93 Difference]: Finished difference Result 5225 states and 7121 transitions. [2021-11-23 01:58:14,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:58:14,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 134 [2021-11-23 01:58:14,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:58:14,416 INFO L225 Difference]: With dead ends: 5225 [2021-11-23 01:58:14,416 INFO L226 Difference]: Without dead ends: 5223 [2021-11-23 01:58:14,419 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 01:58:14,420 INFO L933 BasicCegarLoop]: 2506 mSDtfsCounter, 2764 mSDsluCounter, 2798 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2766 SdHoareTripleChecker+Valid, 5012 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-23 01:58:14,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2766 Valid, 5012 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-23 01:58:14,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5223 states. [2021-11-23 01:58:14,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5223 to 5223. [2021-11-23 01:58:14,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5223 states, 2911 states have (on average 1.2483682583304707) internal successors, (3634), 3100 states have internal predecessors, (3634), 1731 states have call successors, (1731), 582 states have call predecessors, (1731), 574 states have return successors, (1753), 1662 states have call predecessors, (1753), 1729 states have call successors, (1753) [2021-11-23 01:58:14,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5223 states to 5223 states and 7118 transitions. [2021-11-23 01:58:14,905 INFO L78 Accepts]: Start accepts. Automaton has 5223 states and 7118 transitions. Word has length 134 [2021-11-23 01:58:14,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:58:14,905 INFO L470 AbstractCegarLoop]: Abstraction has 5223 states and 7118 transitions. [2021-11-23 01:58:14,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-23 01:58:14,906 INFO L276 IsEmpty]: Start isEmpty. Operand 5223 states and 7118 transitions. [2021-11-23 01:58:14,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-23 01:58:14,911 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:14,912 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:58:14,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-23 01:58:14,912 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:58:14,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:14,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1755369096, now seen corresponding path program 1 times [2021-11-23 01:58:14,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:14,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518396089] [2021-11-23 01:58:14,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:14,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:15,058 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:58:15,058 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:15,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518396089] [2021-11-23 01:58:15,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518396089] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:58:15,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:58:15,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:58:15,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373452654] [2021-11-23 01:58:15,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:58:15,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:58:15,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:58:15,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:58:15,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:58:15,062 INFO L87 Difference]: Start difference. First operand 5223 states and 7118 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-23 01:58:16,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:58:16,736 INFO L93 Difference]: Finished difference Result 5223 states and 7118 transitions. [2021-11-23 01:58:16,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:58:16,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 139 [2021-11-23 01:58:16,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:58:16,761 INFO L225 Difference]: With dead ends: 5223 [2021-11-23 01:58:16,761 INFO L226 Difference]: Without dead ends: 5221 [2021-11-23 01:58:16,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:58:16,767 INFO L933 BasicCegarLoop]: 2504 mSDtfsCounter, 2761 mSDsluCounter, 2796 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2763 SdHoareTripleChecker+Valid, 5008 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-23 01:58:16,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2763 Valid, 5008 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-23 01:58:16,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5221 states. [2021-11-23 01:58:17,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5221 to 5221. [2021-11-23 01:58:17,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 2910 states have (on average 1.247766323024055) internal successors, (3631), 3098 states have internal predecessors, (3631), 1731 states have call successors, (1731), 582 states have call predecessors, (1731), 574 states have return successors, (1753), 1662 states have call predecessors, (1753), 1729 states have call successors, (1753) [2021-11-23 01:58:17,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 7115 transitions. [2021-11-23 01:58:17,192 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 7115 transitions. Word has length 139 [2021-11-23 01:58:17,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:58:17,193 INFO L470 AbstractCegarLoop]: Abstraction has 5221 states and 7115 transitions. [2021-11-23 01:58:17,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-23 01:58:17,193 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 7115 transitions. [2021-11-23 01:58:17,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-23 01:58:17,198 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:17,198 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:58:17,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-23 01:58:17,199 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:58:17,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:17,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1928757431, now seen corresponding path program 1 times [2021-11-23 01:58:17,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:17,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314314079] [2021-11-23 01:58:17,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:17,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:17,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:17,341 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:58:17,341 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:17,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314314079] [2021-11-23 01:58:17,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314314079] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:58:17,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:58:17,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:58:17,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015822756] [2021-11-23 01:58:17,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:58:17,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:58:17,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:58:17,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:58:17,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:58:17,344 INFO L87 Difference]: Start difference. First operand 5221 states and 7115 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-23 01:58:19,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:58:19,074 INFO L93 Difference]: Finished difference Result 5221 states and 7115 transitions. [2021-11-23 01:58:19,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:58:19,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 144 [2021-11-23 01:58:19,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:58:19,098 INFO L225 Difference]: With dead ends: 5221 [2021-11-23 01:58:19,099 INFO L226 Difference]: Without dead ends: 4990 [2021-11-23 01:58:19,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:58:19,106 INFO L933 BasicCegarLoop]: 2503 mSDtfsCounter, 2758 mSDsluCounter, 2796 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2758 SdHoareTripleChecker+Valid, 5006 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-23 01:58:19,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2758 Valid, 5006 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-23 01:58:19,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4990 states. [2021-11-23 01:58:19,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4990 to 4984. [2021-11-23 01:58:19,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4984 states, 2775 states have (on average 1.2576576576576577) internal successors, (3490), 2958 states have internal predecessors, (3490), 1670 states have call successors, (1670), 542 states have call predecessors, (1670), 534 states have return successors, (1692), 1605 states have call predecessors, (1692), 1668 states have call successors, (1692) [2021-11-23 01:58:19,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4984 states to 4984 states and 6852 transitions. [2021-11-23 01:58:19,544 INFO L78 Accepts]: Start accepts. Automaton has 4984 states and 6852 transitions. Word has length 144 [2021-11-23 01:58:19,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:58:19,545 INFO L470 AbstractCegarLoop]: Abstraction has 4984 states and 6852 transitions. [2021-11-23 01:58:19,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-23 01:58:19,545 INFO L276 IsEmpty]: Start isEmpty. Operand 4984 states and 6852 transitions. [2021-11-23 01:58:19,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-23 01:58:19,551 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:19,552 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:58:19,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-23 01:58:19,552 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-23 01:58:19,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:19,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1119767691, now seen corresponding path program 1 times [2021-11-23 01:58:19,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:19,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705772384] [2021-11-23 01:58:19,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:19,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:20,916 INFO L134 CoverageAnalysis]: Checked inductivity of 696 backedges. 6 proven. 58 refuted. 0 times theorem prover too weak. 632 trivial. 0 not checked. [2021-11-23 01:58:20,917 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:20,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705772384] [2021-11-23 01:58:20,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705772384] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 01:58:20,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134262028] [2021-11-23 01:58:20,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:20,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 01:58:20,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:58:20,919 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 01:58:20,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3e5f58-dd95-480d-90b7-917427b78e18/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 01:58:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:22,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 2503 conjuncts, 54 conjunts are in the unsatisfiable core [2021-11-23 01:58:22,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:58:22,665 INFO L134 CoverageAnalysis]: Checked inductivity of 696 backedges. 194 proven. 2 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2021-11-23 01:58:22,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 01:58:23,466 INFO L134 CoverageAnalysis]: Checked inductivity of 696 backedges. 6 proven. 58 refuted. 0 times theorem prover too weak. 632 trivial. 0 not checked. [2021-11-23 01:58:23,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134262028] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 01:58:23,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1896496495] [2021-11-23 01:58:23,494 INFO L159 IcfgInterpreter]: Started Sifa with 88 locations of interest [2021-11-23 01:58:23,495 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 01:58:23,501 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 01:58:23,507 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 01:58:23,508 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 01:58:26,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2021-11-23 01:58:26,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2021-11-23 01:58:27,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2021-11-23 01:58:27,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2021-11-23 01:58:27,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2021-11-23 01:58:28,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2021-11-23 01:58:28,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2021-11-23 02:01:11,862 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_linux_net_register_reset_error_counter with input of size 1985 for LOIs [2021-11-23 02:01:13,576 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_undef_int with input of size 1983 for LOIs [2021-11-23 02:01:15,282 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_filter_positive_int with input of size 1994 for LOIs [2021-11-23 02:01:36,748 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_linux_usb_register_reset_error_counter with input of size 1985 for LOIs [2021-11-23 02:01:38,326 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_assume with input of size 2168 for LOIs [2021-11-23 02:01:51,204 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:02:21,537 WARN L227 SmtUtils]: Spent 29.65s on a formula simplification that was a NOOP. DAG size: 1978 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:03:07,882 WARN L227 SmtUtils]: Spent 30.21s on a formula simplification that was a NOOP. DAG size: 1983 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:04:16,616 WARN L227 SmtUtils]: Spent 1.13m on a formula simplification. DAG size of input: 2092 DAG size of output: 2089 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:04:48,354 WARN L227 SmtUtils]: Spent 30.80s on a formula simplification that was a NOOP. DAG size: 1991 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:06:02,597 WARN L227 SmtUtils]: Spent 1.22m on a formula simplification. DAG size of input: 2153 DAG size of output: 2102 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:07:14,138 WARN L227 SmtUtils]: Spent 1.17m on a formula simplification. DAG size of input: 2153 DAG size of output: 2102 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:08:27,548 WARN L227 SmtUtils]: Spent 1.20m on a formula simplification. DAG size of input: 2151 DAG size of output: 2100 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)