./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e8c1c69a9209f2e1e672b4301b3aeef542d8617026686dc57b4ac44c2de1cbfb --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:04:47,291 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:04:47,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:04:47,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:04:47,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:04:47,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:04:47,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:04:47,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:04:47,351 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:04:47,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:04:47,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:04:47,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:04:47,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:04:47,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:04:47,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:04:47,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:04:47,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:04:47,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:04:47,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:04:47,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:04:47,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:04:47,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:04:47,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:04:47,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:04:47,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:04:47,417 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:04:47,417 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:04:47,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:04:47,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:04:47,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:04:47,420 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:04:47,421 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:04:47,430 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:04:47,432 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:04:47,433 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:04:47,433 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:04:47,434 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:04:47,434 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:04:47,434 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:04:47,435 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:04:47,436 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:04:47,437 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 18:04:47,485 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:04:47,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:04:47,485 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:04:47,486 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:04:47,487 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:04:47,487 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:04:47,487 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:04:47,487 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:04:47,487 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:04:47,488 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:04:47,489 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:04:47,489 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:04:47,489 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:04:47,489 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:04:47,490 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:04:47,490 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:04:47,490 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:04:47,490 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:04:47,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:04:47,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:04:47,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:04:47,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:04:47,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:04:47,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:04:47,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:04:47,492 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:04:47,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:04:47,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:04:47,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:04:47,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:04:47,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:04:47,495 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:04:47,495 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:04:47,495 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:04:47,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:04:47,496 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:04:47,496 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:04:47,496 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:04:47,496 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_d5c803b1-4ad6-458b-9769-501b3a1faaac/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8c1c69a9209f2e1e672b4301b3aeef542d8617026686dc57b4ac44c2de1cbfb [2021-11-25 18:04:47,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:04:47,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:04:47,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:04:47,800 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:04:47,801 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:04:47,802 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i [2021-11-25 18:04:47,862 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/bin/utaipan-eEHZpOm5b7/data/166ad3859/7880e45a1a774048ae03a3435756c6b3/FLAG61753542e [2021-11-25 18:04:48,856 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:04:48,857 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i [2021-11-25 18:04:48,934 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/bin/utaipan-eEHZpOm5b7/data/166ad3859/7880e45a1a774048ae03a3435756c6b3/FLAG61753542e [2021-11-25 18:04:49,208 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/bin/utaipan-eEHZpOm5b7/data/166ad3859/7880e45a1a774048ae03a3435756c6b3 [2021-11-25 18:04:49,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:04:49,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:04:49,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:04:49,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:04:49,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:04:49,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:04:49" (1/1) ... [2021-11-25 18:04:49,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18f9c719 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:04:49, skipping insertion in model container [2021-11-25 18:04:49,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:04:49" (1/1) ... [2021-11-25 18:04:49,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:04:49,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:04:54,443 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[489935,489948] [2021-11-25 18:04:54,446 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490080,490093] [2021-11-25 18:04:54,447 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490226,490239] [2021-11-25 18:04:54,447 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490391,490404] [2021-11-25 18:04:54,448 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490549,490562] [2021-11-25 18:04:54,448 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490707,490720] [2021-11-25 18:04:54,449 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490865,490878] [2021-11-25 18:04:54,449 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491025,491038] [2021-11-25 18:04:54,450 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491184,491197] [2021-11-25 18:04:54,451 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491323,491336] [2021-11-25 18:04:54,451 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491465,491478] [2021-11-25 18:04:54,452 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491614,491627] [2021-11-25 18:04:54,452 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491753,491766] [2021-11-25 18:04:54,453 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491908,491921] [2021-11-25 18:04:54,453 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492068,492081] [2021-11-25 18:04:54,454 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492219,492232] [2021-11-25 18:04:54,454 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492370,492383] [2021-11-25 18:04:54,455 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492522,492535] [2021-11-25 18:04:54,455 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492671,492684] [2021-11-25 18:04:54,456 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492819,492832] [2021-11-25 18:04:54,456 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492976,492989] [2021-11-25 18:04:54,457 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493125,493138] [2021-11-25 18:04:54,457 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493281,493294] [2021-11-25 18:04:54,458 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493434,493447] [2021-11-25 18:04:54,458 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493580,493593] [2021-11-25 18:04:54,459 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493723,493736] [2021-11-25 18:04:54,459 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493875,493888] [2021-11-25 18:04:54,460 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494021,494034] [2021-11-25 18:04:54,460 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494166,494179] [2021-11-25 18:04:54,461 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494320,494333] [2021-11-25 18:04:54,461 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494471,494484] [2021-11-25 18:04:54,461 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494626,494639] [2021-11-25 18:04:54,462 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494778,494791] [2021-11-25 18:04:54,462 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494933,494946] [2021-11-25 18:04:54,463 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495097,495110] [2021-11-25 18:04:54,463 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495253,495266] [2021-11-25 18:04:54,464 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495417,495430] [2021-11-25 18:04:54,464 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495559,495572] [2021-11-25 18:04:54,465 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495717,495730] [2021-11-25 18:04:54,465 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495884,495897] [2021-11-25 18:04:54,466 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496043,496056] [2021-11-25 18:04:54,466 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496202,496215] [2021-11-25 18:04:54,467 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496351,496364] [2021-11-25 18:04:54,467 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496498,496511] [2021-11-25 18:04:54,468 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496637,496650] [2021-11-25 18:04:54,468 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496800,496813] [2021-11-25 18:04:54,469 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496966,496979] [2021-11-25 18:04:54,469 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497130,497143] [2021-11-25 18:04:54,470 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497295,497308] [2021-11-25 18:04:54,470 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497460,497473] [2021-11-25 18:04:54,470 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497626,497639] [2021-11-25 18:04:54,471 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497791,497804] [2021-11-25 18:04:54,471 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497958,497971] [2021-11-25 18:04:54,472 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498118,498131] [2021-11-25 18:04:54,472 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498280,498293] [2021-11-25 18:04:54,473 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498439,498452] [2021-11-25 18:04:54,473 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498585,498598] [2021-11-25 18:04:54,474 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498728,498741] [2021-11-25 18:04:54,474 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498872,498885] [2021-11-25 18:04:54,475 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499015,499028] [2021-11-25 18:04:54,475 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499159,499172] [2021-11-25 18:04:54,476 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499300,499313] [2021-11-25 18:04:54,476 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499438,499451] [2021-11-25 18:04:54,477 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499596,499609] [2021-11-25 18:04:54,477 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499755,499768] [2021-11-25 18:04:54,478 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499911,499924] [2021-11-25 18:04:54,478 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500060,500073] [2021-11-25 18:04:54,479 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500212,500225] [2021-11-25 18:04:54,479 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500363,500376] [2021-11-25 18:04:54,480 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500512,500525] [2021-11-25 18:04:54,480 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500664,500677] [2021-11-25 18:04:54,481 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500812,500825] [2021-11-25 18:04:54,481 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500965,500978] [2021-11-25 18:04:54,482 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501116,501129] [2021-11-25 18:04:54,482 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501266,501279] [2021-11-25 18:04:54,482 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501413,501426] [2021-11-25 18:04:54,483 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501564,501577] [2021-11-25 18:04:54,483 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501715,501728] [2021-11-25 18:04:54,484 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501863,501876] [2021-11-25 18:04:54,484 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502029,502042] [2021-11-25 18:04:54,485 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502198,502211] [2021-11-25 18:04:54,485 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502365,502378] [2021-11-25 18:04:54,486 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502533,502546] [2021-11-25 18:04:54,486 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502683,502696] [2021-11-25 18:04:54,487 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502830,502843] [2021-11-25 18:04:54,487 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502991,503004] [2021-11-25 18:04:54,488 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[503161,503174] [2021-11-25 18:04:54,488 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[503323,503336] [2021-11-25 18:04:54,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:04:54,547 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:04:55,045 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[489935,489948] [2021-11-25 18:04:55,048 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490080,490093] [2021-11-25 18:04:55,053 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490226,490239] [2021-11-25 18:04:55,053 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490391,490404] [2021-11-25 18:04:55,054 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490549,490562] [2021-11-25 18:04:55,054 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490707,490720] [2021-11-25 18:04:55,055 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490865,490878] [2021-11-25 18:04:55,055 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491025,491038] [2021-11-25 18:04:55,056 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491184,491197] [2021-11-25 18:04:55,056 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491323,491336] [2021-11-25 18:04:55,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491465,491478] [2021-11-25 18:04:55,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491614,491627] [2021-11-25 18:04:55,058 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491753,491766] [2021-11-25 18:04:55,058 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491908,491921] [2021-11-25 18:04:55,059 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492068,492081] [2021-11-25 18:04:55,059 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492219,492232] [2021-11-25 18:04:55,059 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492370,492383] [2021-11-25 18:04:55,060 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492522,492535] [2021-11-25 18:04:55,060 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492671,492684] [2021-11-25 18:04:55,061 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492819,492832] [2021-11-25 18:04:55,061 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492976,492989] [2021-11-25 18:04:55,061 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493125,493138] [2021-11-25 18:04:55,062 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493281,493294] [2021-11-25 18:04:55,063 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493434,493447] [2021-11-25 18:04:55,063 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493580,493593] [2021-11-25 18:04:55,064 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493723,493736] [2021-11-25 18:04:55,069 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493875,493888] [2021-11-25 18:04:55,069 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494021,494034] [2021-11-25 18:04:55,070 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494166,494179] [2021-11-25 18:04:55,070 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494320,494333] [2021-11-25 18:04:55,071 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494471,494484] [2021-11-25 18:04:55,071 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494626,494639] [2021-11-25 18:04:55,072 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494778,494791] [2021-11-25 18:04:55,073 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494933,494946] [2021-11-25 18:04:55,074 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495097,495110] [2021-11-25 18:04:55,074 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495253,495266] [2021-11-25 18:04:55,075 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495417,495430] [2021-11-25 18:04:55,076 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495559,495572] [2021-11-25 18:04:55,076 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495717,495730] [2021-11-25 18:04:55,077 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495884,495897] [2021-11-25 18:04:55,077 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496043,496056] [2021-11-25 18:04:55,078 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496202,496215] [2021-11-25 18:04:55,078 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496351,496364] [2021-11-25 18:04:55,079 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496498,496511] [2021-11-25 18:04:55,079 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496637,496650] [2021-11-25 18:04:55,080 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496800,496813] [2021-11-25 18:04:55,080 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496966,496979] [2021-11-25 18:04:55,081 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497130,497143] [2021-11-25 18:04:55,081 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497295,497308] [2021-11-25 18:04:55,081 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497460,497473] [2021-11-25 18:04:55,082 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497626,497639] [2021-11-25 18:04:55,082 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497791,497804] [2021-11-25 18:04:55,083 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497958,497971] [2021-11-25 18:04:55,083 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498118,498131] [2021-11-25 18:04:55,085 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498280,498293] [2021-11-25 18:04:55,086 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498439,498452] [2021-11-25 18:04:55,089 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498585,498598] [2021-11-25 18:04:55,090 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498728,498741] [2021-11-25 18:04:55,090 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498872,498885] [2021-11-25 18:04:55,090 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499015,499028] [2021-11-25 18:04:55,091 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499159,499172] [2021-11-25 18:04:55,092 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499300,499313] [2021-11-25 18:04:55,093 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499438,499451] [2021-11-25 18:04:55,093 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499596,499609] [2021-11-25 18:04:55,094 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499755,499768] [2021-11-25 18:04:55,101 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499911,499924] [2021-11-25 18:04:55,105 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500060,500073] [2021-11-25 18:04:55,105 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500212,500225] [2021-11-25 18:04:55,105 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500363,500376] [2021-11-25 18:04:55,106 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500512,500525] [2021-11-25 18:04:55,106 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500664,500677] [2021-11-25 18:04:55,107 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500812,500825] [2021-11-25 18:04:55,107 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500965,500978] [2021-11-25 18:04:55,108 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501116,501129] [2021-11-25 18:04:55,108 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501266,501279] [2021-11-25 18:04:55,108 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501413,501426] [2021-11-25 18:04:55,109 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501564,501577] [2021-11-25 18:04:55,109 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501715,501728] [2021-11-25 18:04:55,110 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501863,501876] [2021-11-25 18:04:55,111 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502029,502042] [2021-11-25 18:04:55,111 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502198,502211] [2021-11-25 18:04:55,112 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502365,502378] [2021-11-25 18:04:55,112 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502533,502546] [2021-11-25 18:04:55,113 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502683,502696] [2021-11-25 18:04:55,113 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502830,502843] [2021-11-25 18:04:55,113 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502991,503004] [2021-11-25 18:04:55,114 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[503161,503174] [2021-11-25 18:04:55,114 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[503323,503336] [2021-11-25 18:04:55,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:04:55,539 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:04:55,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:04:55 WrapperNode [2021-11-25 18:04:55,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:04:55,541 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:04:55,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:04:55,541 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:04:55,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:04:55" (1/1) ... [2021-11-25 18:04:55,696 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:04:55" (1/1) ... [2021-11-25 18:04:56,009 INFO L137 Inliner]: procedures = 776, calls = 2914, calls flagged for inlining = 349, calls inlined = 276, statements flattened = 7256 [2021-11-25 18:04:56,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:04:56,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:04:56,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:04:56,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:04:56,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:04:55" (1/1) ... [2021-11-25 18:04:56,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:04:55" (1/1) ... [2021-11-25 18:04:56,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:04:55" (1/1) ... [2021-11-25 18:04:56,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:04:55" (1/1) ... [2021-11-25 18:04:56,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:04:55" (1/1) ... [2021-11-25 18:04:56,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:04:55" (1/1) ... [2021-11-25 18:04:56,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:04:55" (1/1) ... [2021-11-25 18:04:56,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:04:56,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:04:56,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:04:56,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:04:56,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:04:55" (1/1) ... [2021-11-25 18:04:56,351 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:04:56,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:04:56,377 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:04:56,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:04:56,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2021-11-25 18:04:56,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2021-11-25 18:04:56,421 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-25 18:04:56,421 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-25 18:04:56,421 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-25 18:04:56,421 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2021-11-25 18:04:56,421 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2021-11-25 18:04:56,422 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2021-11-25 18:04:56,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2021-11-25 18:04:56,422 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2021-11-25 18:04:56,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2021-11-25 18:04:56,424 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-25 18:04:56,424 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-25 18:04:56,424 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_destroy [2021-11-25 18:04:56,424 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_destroy [2021-11-25 18:04:56,424 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2021-11-25 18:04:56,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2021-11-25 18:04:56,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-25 18:04:56,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-25 18:04:56,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 18:04:56,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 18:04:56,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_lib_idr__double_init [2021-11-25 18:04:56,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_lib_idr__double_init [2021-11-25 18:04:56,425 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2021-11-25 18:04:56,426 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2021-11-25 18:04:56,426 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-11-25 18:04:56,426 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-11-25 18:04:56,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-25 18:04:56,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-25 18:04:56,426 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-25 18:04:56,427 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-25 18:04:56,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 18:04:56,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 18:04:56,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-25 18:04:56,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-25 18:04:56,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:04:56,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-25 18:04:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-25 18:04:56,428 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2021-11-25 18:04:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2021-11-25 18:04:56,428 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2021-11-25 18:04:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2021-11-25 18:04:56,428 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-25 18:04:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-25 18:04:56,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-25 18:04:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-25 18:04:56,429 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2021-11-25 18:04:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2021-11-25 18:04:56,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:04:56,430 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-25 18:04:56,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-25 18:04:56,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:04:56,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_lib_idr__not_initialized [2021-11-25 18:04:56,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_lib_idr__not_initialized [2021-11-25 18:04:56,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_read_unlock [2021-11-25 18:04:56,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_read_unlock [2021-11-25 18:04:56,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 18:04:56,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 18:04:56,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:04:56,432 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 18:04:56,432 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-25 18:04:56,432 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-25 18:04:56,432 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-25 18:04:56,432 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-25 18:04:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-25 18:04:56,437 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-25 18:04:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-11-25 18:04:56,437 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-11-25 18:04:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 18:04:56,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 18:04:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2021-11-25 18:04:56,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2021-11-25 18:04:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2021-11-25 18:04:56,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2021-11-25 18:04:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_198 [2021-11-25 18:04:56,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_198 [2021-11-25 18:04:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:04:56,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:04:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-25 18:04:56,440 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-25 18:04:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 18:04:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2021-11-25 18:04:56,441 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2021-11-25 18:04:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2021-11-25 18:04:56,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2021-11-25 18:04:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2021-11-25 18:04:56,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2021-11-25 18:04:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-25 18:04:56,442 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-25 18:04:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2021-11-25 18:04:56,442 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2021-11-25 18:04:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 18:04:56,442 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 18:04:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-25 18:04:56,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-25 18:04:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-25 18:04:56,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-25 18:04:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:04:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 18:04:56,443 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 18:04:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-25 18:04:56,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-25 18:04:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_base_class__double_registration [2021-11-25 18:04:56,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_base_class__double_registration [2021-11-25 18:04:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:04:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_send_frame [2021-11-25 18:04:56,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_send_frame [2021-11-25 18:04:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_error [2021-11-25 18:04:56,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_error [2021-11-25 18:04:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2021-11-25 18:04:56,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2021-11-25 18:04:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_module_put [2021-11-25 18:04:56,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_module_put [2021-11-25 18:04:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_idr_alloc_p [2021-11-25 18:04:56,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_idr_alloc_p [2021-11-25 18:04:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 18:04:56,446 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 18:04:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2021-11-25 18:04:56,446 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2021-11-25 18:04:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2021-11-25 18:04:56,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2021-11-25 18:04:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 18:04:56,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 18:04:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_dev_init [2021-11-25 18:04:56,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_dev_init [2021-11-25 18:04:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-25 18:04:56,448 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-25 18:04:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-25 18:04:56,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-25 18:04:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-25 18:04:56,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-25 18:04:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2021-11-25 18:04:56,449 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2021-11-25 18:04:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2021-11-25 18:04:56,449 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2021-11-25 18:04:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-25 18:04:56,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-25 18:04:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:04:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-11-25 18:04:56,450 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-11-25 18:04:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 18:04:56,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 18:04:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2021-11-25 18:04:56,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2021-11-25 18:04:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-25 18:04:56,451 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-25 18:04:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-25 18:04:56,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-25 18:04:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_all_ppp_mutex_of_ppp_net [2021-11-25 18:04:56,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_all_ppp_mutex_of_ppp_net [2021-11-25 18:04:56,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_usb_gadget__chrdev_registration_with_usb_gadget [2021-11-25 18:04:56,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_usb_gadget__chrdev_registration_with_usb_gadget [2021-11-25 18:04:56,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_usb_gadget__class_registration_with_usb_gadget [2021-11-25 18:04:56,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_usb_gadget__class_registration_with_usb_gadget [2021-11-25 18:04:56,452 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2021-11-25 18:04:56,452 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2021-11-25 18:04:56,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-25 18:04:56,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-25 18:04:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 18:04:56,453 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 18:04:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_159 [2021-11-25 18:04:56,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_159 [2021-11-25 18:04:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 18:04:56,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 18:04:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2021-11-25 18:04:56,454 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2021-11-25 18:04:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-25 18:04:56,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-25 18:04:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-25 18:04:56,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-25 18:04:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 18:04:56,455 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 18:04:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2021-11-25 18:04:56,455 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2021-11-25 18:04:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_create [2021-11-25 18:04:56,456 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_create [2021-11-25 18:04:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 18:04:56,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 18:04:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-11-25 18:04:56,456 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-11-25 18:04:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-25 18:04:56,456 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-25 18:04:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 18:04:56,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 18:04:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-25 18:04:56,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-25 18:04:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:04:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_write_unlock [2021-11-25 18:04:56,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_write_unlock [2021-11-25 18:04:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-25 18:04:56,458 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-25 18:04:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2021-11-25 18:04:56,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2021-11-25 18:04:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 18:04:56,458 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 18:04:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_197 [2021-11-25 18:04:56,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_197 [2021-11-25 18:04:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 18:04:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-25 18:04:56,459 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-25 18:04:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_153 [2021-11-25 18:04:56,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_153 [2021-11-25 18:04:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-25 18:04:56,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-25 18:04:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 18:04:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-25 18:04:56,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-25 18:04:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-25 18:04:56,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-25 18:04:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-25 18:04:56,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-25 18:04:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2021-11-25 18:04:56,461 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2021-11-25 18:04:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_do_recv [2021-11-25 18:04:56,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_do_recv [2021-11-25 18:04:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_166 [2021-11-25 18:04:56,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_166 [2021-11-25 18:04:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_lib_idr__more_at_exit [2021-11-25 18:04:56,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_lib_idr__more_at_exit [2021-11-25 18:04:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 18:04:56,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 18:04:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2021-11-25 18:04:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2021-11-25 18:04:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_131 [2021-11-25 18:04:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_131 [2021-11-25 18:04:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_132 [2021-11-25 18:04:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_132 [2021-11-25 18:04:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_fs_char_dev__double_registration [2021-11-25 18:04:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_fs_char_dev__double_registration [2021-11-25 18:04:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-25 18:04:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-25 18:04:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2021-11-25 18:04:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2021-11-25 18:04:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_ppp_mutex [2021-11-25 18:04:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_ppp_mutex [2021-11-25 18:04:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_lib_idr__destroyed_before_usage [2021-11-25 18:04:56,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_lib_idr__destroyed_before_usage [2021-11-25 18:04:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_write_lock [2021-11-25 18:04:56,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_write_lock [2021-11-25 18:04:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_init_net [2021-11-25 18:04:56,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_init_net [2021-11-25 18:04:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:04:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:04:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:04:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:04:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-25 18:04:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-25 18:04:56,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-25 18:04:56,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-25 18:04:56,467 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2021-11-25 18:04:56,467 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2021-11-25 18:04:56,467 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2021-11-25 18:04:56,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2021-11-25 18:04:56,467 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-25 18:04:56,467 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-25 18:04:56,468 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-25 18:04:56,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-25 18:04:56,468 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2021-11-25 18:04:56,468 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2021-11-25 18:04:56,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 18:04:56,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 18:04:56,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 18:04:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_setup [2021-11-25 18:04:56,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_setup [2021-11-25 18:04:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 18:04:56,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 18:04:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-25 18:04:56,469 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-25 18:04:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2021-11-25 18:04:56,470 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2021-11-25 18:04:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 18:04:56,470 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 18:04:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2021-11-25 18:04:56,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2021-11-25 18:04:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-25 18:04:56,471 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-25 18:04:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_all_ppp_mutex_of_ppp_net [2021-11-25 18:04:56,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_all_ppp_mutex_of_ppp_net [2021-11-25 18:04:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 18:04:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-25 18:04:56,471 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-25 18:04:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_167 [2021-11-25 18:04:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_167 [2021-11-25 18:04:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_read_lock [2021-11-25 18:04:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_read_lock [2021-11-25 18:04:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-25 18:04:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-25 18:04:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-25 18:04:56,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-25 18:04:56,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-25 18:04:56,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-25 18:04:56,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_154 [2021-11-25 18:04:56,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_154 [2021-11-25 18:04:56,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 18:04:56,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 18:04:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2021-11-25 18:04:56,474 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2021-11-25 18:04:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2021-11-25 18:04:56,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2021-11-25 18:04:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_ppp_mutex [2021-11-25 18:04:56,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_ppp_mutex [2021-11-25 18:04:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-25 18:04:56,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-25 18:04:56,475 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 18:04:56,475 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 18:04:56,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_133 [2021-11-25 18:04:56,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_133 [2021-11-25 18:04:56,475 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2021-11-25 18:04:56,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2021-11-25 18:04:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_134 [2021-11-25 18:04:56,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_134 [2021-11-25 18:04:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2021-11-25 18:04:56,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2021-11-25 18:04:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2021-11-25 18:04:56,476 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2021-11-25 18:04:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-25 18:04:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-25 18:04:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 18:04:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 18:04:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2021-11-25 18:04:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2021-11-25 18:04:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_nonmp_frame [2021-11-25 18:04:56,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_nonmp_frame [2021-11-25 18:04:56,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-25 18:04:56,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-25 18:04:56,478 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-25 18:04:56,478 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-25 18:04:56,478 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-25 18:04:56,478 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-25 18:04:56,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-25 18:04:56,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-25 18:04:56,479 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-25 18:04:56,479 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-25 18:04:56,479 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-25 18:04:56,479 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-25 18:04:56,480 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2021-11-25 18:04:56,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2021-11-25 18:04:56,480 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-25 18:04:56,480 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-25 18:04:56,480 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2021-11-25 18:04:56,480 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2021-11-25 18:04:56,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 18:04:56,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 18:04:56,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-25 18:04:56,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-25 18:04:56,481 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_net_channel [2021-11-25 18:04:56,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_net_channel [2021-11-25 18:04:56,481 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_explode [2021-11-25 18:04:56,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_explode [2021-11-25 18:04:56,482 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-25 18:04:56,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-25 18:04:56,482 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_poll [2021-11-25 18:04:56,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_poll [2021-11-25 18:04:56,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:04:56,482 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 18:04:56,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 18:04:57,657 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:04:57,665 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:04:57,890 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 18:05:02,333 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:05:03,750 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:05:03,751 INFO L301 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-25 18:05:03,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:05:03 BoogieIcfgContainer [2021-11-25 18:05:03,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:05:03,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:05:03,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:05:03,761 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:05:03,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:04:49" (1/3) ... [2021-11-25 18:05:03,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a09b7f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:05:03, skipping insertion in model container [2021-11-25 18:05:03,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:04:55" (2/3) ... [2021-11-25 18:05:03,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a09b7f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:05:03, skipping insertion in model container [2021-11-25 18:05:03,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:05:03" (3/3) ... [2021-11-25 18:05:03,764 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i [2021-11-25 18:05:03,769 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:05:03,769 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2021-11-25 18:05:03,822 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:05:03,828 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:05:03,828 INFO L340 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2021-11-25 18:05:03,887 INFO L276 IsEmpty]: Start isEmpty. Operand has 2106 states, 1230 states have (on average 1.3471544715447155) internal successors, (1657), 1349 states have internal predecessors, (1657), 665 states have call successors, (665), 169 states have call predecessors, (665), 168 states have return successors, (659), 636 states have call predecessors, (659), 659 states have call successors, (659) [2021-11-25 18:05:03,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-25 18:05:03,892 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:05:03,892 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:05:03,893 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_fs_char_dev__double_registrationErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-25 18:05:03,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:05:03,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1923914885, now seen corresponding path program 1 times [2021-11-25 18:05:03,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:05:03,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900417590] [2021-11-25 18:05:03,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:05:03,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:05:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:05:04,518 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 18:05:04,519 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:05:04,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900417590] [2021-11-25 18:05:04,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900417590] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:05:04,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:05:04,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:05:04,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359075084] [2021-11-25 18:05:04,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:05:04,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:05:04,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:05:04,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:05:04,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:05:04,576 INFO L87 Difference]: Start difference. First operand has 2106 states, 1230 states have (on average 1.3471544715447155) internal successors, (1657), 1349 states have internal predecessors, (1657), 665 states have call successors, (665), 169 states have call predecessors, (665), 168 states have return successors, (659), 636 states have call predecessors, (659), 659 states have call successors, (659) Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-25 18:05:07,424 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:05:09,512 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:05:11,578 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:05:16,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:05:17,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:05:17,901 INFO L93 Difference]: Finished difference Result 6207 states and 9280 transitions. [2021-11-25 18:05:17,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:05:17,903 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 25 [2021-11-25 18:05:17,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:05:17,964 INFO L225 Difference]: With dead ends: 6207 [2021-11-25 18:05:17,964 INFO L226 Difference]: Without dead ends: 4091 [2021-11-25 18:05:17,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 18:05:17,990 INFO L933 BasicCegarLoop]: 4831 mSDtfsCounter, 2893 mSDsluCounter, 13715 mSDsCounter, 0 mSdLazyCounter, 2211 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2896 SdHoareTripleChecker+Valid, 16969 SdHoareTripleChecker+Invalid, 2217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2211 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:05:17,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2896 Valid, 16969 Invalid, 2217 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2211 Invalid, 4 Unknown, 0 Unchecked, 12.8s Time] [2021-11-25 18:05:18,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4091 states. [2021-11-25 18:05:18,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4091 to 4000. [2021-11-25 18:05:18,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4000 states, 2351 states have (on average 1.309230114844747) internal successors, (3078), 2539 states have internal predecessors, (3078), 1274 states have call successors, (1274), 333 states have call predecessors, (1274), 332 states have return successors, (1274), 1222 states have call predecessors, (1274), 1272 states have call successors, (1274) [2021-11-25 18:05:18,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4000 states to 4000 states and 5626 transitions. [2021-11-25 18:05:18,405 INFO L78 Accepts]: Start accepts. Automaton has 4000 states and 5626 transitions. Word has length 25 [2021-11-25 18:05:18,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:05:18,406 INFO L470 AbstractCegarLoop]: Abstraction has 4000 states and 5626 transitions. [2021-11-25 18:05:18,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-25 18:05:18,406 INFO L276 IsEmpty]: Start isEmpty. Operand 4000 states and 5626 transitions. [2021-11-25 18:05:18,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-25 18:05:18,410 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:05:18,411 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:05:18,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:05:18,411 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_usb_gadget__chrdev_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-25 18:05:18,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:05:18,415 INFO L85 PathProgramCache]: Analyzing trace with hash 89008391, now seen corresponding path program 1 times [2021-11-25 18:05:18,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:05:18,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678796902] [2021-11-25 18:05:18,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:05:18,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:05:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:05:18,686 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-25 18:05:18,687 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:05:18,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678796902] [2021-11-25 18:05:18,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678796902] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:05:18,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:05:18,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:05:18,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496141298] [2021-11-25 18:05:18,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:05:18,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:05:18,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:05:18,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:05:18,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:05:18,691 INFO L87 Difference]: Start difference. First operand 4000 states and 5626 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-25 18:05:21,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:05:24,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:05:26,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:05:27,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:05:27,762 INFO L93 Difference]: Finished difference Result 5224 states and 7300 transitions. [2021-11-25 18:05:27,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:05:27,763 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 40 [2021-11-25 18:05:27,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:05:27,810 INFO L225 Difference]: With dead ends: 5224 [2021-11-25 18:05:27,811 INFO L226 Difference]: Without dead ends: 5222 [2021-11-25 18:05:27,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 18:05:27,816 INFO L933 BasicCegarLoop]: 3165 mSDtfsCounter, 2875 mSDsluCounter, 8777 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2878 SdHoareTripleChecker+Valid, 10946 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:05:27,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2878 Valid, 10946 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1397 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2021-11-25 18:05:27,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5222 states. [2021-11-25 18:05:28,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5222 to 5191. [2021-11-25 18:05:28,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 3052 states have (on average 1.3083224115334207) internal successors, (3993), 3290 states have internal predecessors, (3993), 1643 states have call successors, (1643), 454 states have call predecessors, (1643), 454 states have return successors, (1645), 1571 states have call predecessors, (1645), 1641 states have call successors, (1645) [2021-11-25 18:05:28,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 7281 transitions. [2021-11-25 18:05:28,181 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 7281 transitions. Word has length 40 [2021-11-25 18:05:28,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:05:28,182 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 7281 transitions. [2021-11-25 18:05:28,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-25 18:05:28,182 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 7281 transitions. [2021-11-25 18:05:28,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-25 18:05:28,190 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:05:28,190 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:05:28,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:05:28,190 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-25 18:05:28,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:05:28,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1908130054, now seen corresponding path program 1 times [2021-11-25 18:05:28,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:05:28,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783929827] [2021-11-25 18:05:28,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:05:28,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:05:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:05:28,422 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:05:28,423 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:05:28,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783929827] [2021-11-25 18:05:28,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783929827] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:05:28,423 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:05:28,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:05:28,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834244930] [2021-11-25 18:05:28,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:05:28,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:05:28,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:05:28,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:05:28,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:05:28,425 INFO L87 Difference]: Start difference. First operand 5191 states and 7281 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-25 18:05:30,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:05:33,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:05:36,060 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:05:37,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:05:37,265 INFO L93 Difference]: Finished difference Result 6798 states and 9375 transitions. [2021-11-25 18:05:37,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:05:37,266 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 39 [2021-11-25 18:05:37,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:05:37,320 INFO L225 Difference]: With dead ends: 6798 [2021-11-25 18:05:37,320 INFO L226 Difference]: Without dead ends: 6796 [2021-11-25 18:05:37,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:05:37,328 INFO L933 BasicCegarLoop]: 3158 mSDtfsCounter, 2823 mSDsluCounter, 5219 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2828 SdHoareTripleChecker+Valid, 7770 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:05:37,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2828 Valid, 7770 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 997 Invalid, 3 Unknown, 0 Unchecked, 8.5s Time] [2021-11-25 18:05:37,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6796 states. [2021-11-25 18:05:37,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6796 to 6765. [2021-11-25 18:05:37,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6765 states, 3947 states have (on average 1.2976944514821382) internal successors, (5122), 4234 states have internal predecessors, (5122), 2115 states have call successors, (2115), 662 states have call predecessors, (2115), 662 states have return successors, (2119), 2027 states have call predecessors, (2119), 2113 states have call successors, (2119) [2021-11-25 18:05:37,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6765 states to 6765 states and 9356 transitions. [2021-11-25 18:05:37,739 INFO L78 Accepts]: Start accepts. Automaton has 6765 states and 9356 transitions. Word has length 39 [2021-11-25 18:05:37,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:05:37,739 INFO L470 AbstractCegarLoop]: Abstraction has 6765 states and 9356 transitions. [2021-11-25 18:05:37,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-25 18:05:37,740 INFO L276 IsEmpty]: Start isEmpty. Operand 6765 states and 9356 transitions. [2021-11-25 18:05:37,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-25 18:05:37,746 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:05:37,746 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:05:37,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 18:05:37,747 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-25 18:05:37,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:05:37,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1757133611, now seen corresponding path program 1 times [2021-11-25 18:05:37,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:05:37,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110725151] [2021-11-25 18:05:37,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:05:37,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:05:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:05:37,971 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:05:37,971 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:05:37,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110725151] [2021-11-25 18:05:37,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110725151] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:05:37,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:05:37,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:05:37,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328010247] [2021-11-25 18:05:37,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:05:37,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:05:37,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:05:37,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:05:37,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:05:37,973 INFO L87 Difference]: Start difference. First operand 6765 states and 9356 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-25 18:05:40,258 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:05:42,954 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:05:45,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:05:46,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:05:46,598 INFO L93 Difference]: Finished difference Result 6796 states and 9372 transitions. [2021-11-25 18:05:46,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:05:46,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 44 [2021-11-25 18:05:46,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:05:46,706 INFO L225 Difference]: With dead ends: 6796 [2021-11-25 18:05:46,706 INFO L226 Difference]: Without dead ends: 6794 [2021-11-25 18:05:46,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:05:46,714 INFO L933 BasicCegarLoop]: 3156 mSDtfsCounter, 2820 mSDsluCounter, 5217 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2825 SdHoareTripleChecker+Valid, 7766 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:05:46,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2825 Valid, 7766 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 997 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2021-11-25 18:05:46,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6794 states. [2021-11-25 18:05:47,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6794 to 6763. [2021-11-25 18:05:47,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6763 states, 3946 states have (on average 1.2972630511910797) internal successors, (5119), 4232 states have internal predecessors, (5119), 2115 states have call successors, (2115), 662 states have call predecessors, (2115), 662 states have return successors, (2119), 2027 states have call predecessors, (2119), 2113 states have call successors, (2119) [2021-11-25 18:05:47,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6763 states to 6763 states and 9353 transitions. [2021-11-25 18:05:47,050 INFO L78 Accepts]: Start accepts. Automaton has 6763 states and 9353 transitions. Word has length 44 [2021-11-25 18:05:47,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:05:47,053 INFO L470 AbstractCegarLoop]: Abstraction has 6763 states and 9353 transitions. [2021-11-25 18:05:47,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-25 18:05:47,053 INFO L276 IsEmpty]: Start isEmpty. Operand 6763 states and 9353 transitions. [2021-11-25 18:05:47,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-25 18:05:47,055 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:05:47,055 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:05:47,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 18:05:47,055 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_unregister_chrdev_159Err0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-25 18:05:47,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:05:47,056 INFO L85 PathProgramCache]: Analyzing trace with hash 20933606, now seen corresponding path program 1 times [2021-11-25 18:05:47,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:05:47,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488234417] [2021-11-25 18:05:47,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:05:47,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:05:47,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:05:47,242 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 18:05:47,242 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:05:47,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488234417] [2021-11-25 18:05:47,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488234417] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:05:47,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:05:47,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 18:05:47,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099585297] [2021-11-25 18:05:47,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:05:47,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 18:05:47,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:05:47,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 18:05:47,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:05:47,245 INFO L87 Difference]: Start difference. First operand 6763 states and 9353 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-25 18:05:50,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:05:56,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:05:59,088 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:00,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:06:00,057 INFO L93 Difference]: Finished difference Result 7587 states and 10325 transitions. [2021-11-25 18:06:00,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 18:06:00,063 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 49 [2021-11-25 18:06:00,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:06:00,130 INFO L225 Difference]: With dead ends: 7587 [2021-11-25 18:06:00,130 INFO L226 Difference]: Without dead ends: 7409 [2021-11-25 18:06:00,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-25 18:06:00,137 INFO L933 BasicCegarLoop]: 2632 mSDtfsCounter, 477 mSDsluCounter, 11086 mSDsCounter, 0 mSdLazyCounter, 2310 mSolverCounterSat, 52 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 12558 SdHoareTripleChecker+Invalid, 2365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2310 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:06:00,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [502 Valid, 12558 Invalid, 2365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2310 Invalid, 3 Unknown, 0 Unchecked, 12.6s Time] [2021-11-25 18:06:00,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7409 states. [2021-11-25 18:06:00,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7409 to 7051. [2021-11-25 18:06:00,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7051 states, 4115 states have (on average 1.2938031591737547) internal successors, (5324), 4409 states have internal predecessors, (5324), 2197 states have call successors, (2197), 701 states have call predecessors, (2197), 699 states have return successors, (2201), 2102 states have call predecessors, (2201), 2195 states have call successors, (2201) [2021-11-25 18:06:00,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7051 states to 7051 states and 9722 transitions. [2021-11-25 18:06:00,630 INFO L78 Accepts]: Start accepts. Automaton has 7051 states and 9722 transitions. Word has length 49 [2021-11-25 18:06:00,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:06:00,631 INFO L470 AbstractCegarLoop]: Abstraction has 7051 states and 9722 transitions. [2021-11-25 18:06:00,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-25 18:06:00,631 INFO L276 IsEmpty]: Start isEmpty. Operand 7051 states and 9722 transitions. [2021-11-25 18:06:00,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-25 18:06:00,632 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:06:00,632 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:06:00,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 18:06:00,633 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-25 18:06:00,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:06:00,634 INFO L85 PathProgramCache]: Analyzing trace with hash 714978999, now seen corresponding path program 1 times [2021-11-25 18:06:00,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:06:00,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544572095] [2021-11-25 18:06:00,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:06:00,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:06:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:06:00,806 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:06:00,807 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:06:00,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544572095] [2021-11-25 18:06:00,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544572095] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:06:00,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:06:00,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:06:00,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232340188] [2021-11-25 18:06:00,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:06:00,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:06:00,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:06:00,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:06:00,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:06:00,809 INFO L87 Difference]: Start difference. First operand 7051 states and 9722 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-25 18:06:03,556 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:06:06,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:06,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:06:06,971 INFO L93 Difference]: Finished difference Result 7082 states and 9738 transitions. [2021-11-25 18:06:06,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:06:06,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 49 [2021-11-25 18:06:06,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:06:07,001 INFO L225 Difference]: With dead ends: 7082 [2021-11-25 18:06:07,001 INFO L226 Difference]: Without dead ends: 7080 [2021-11-25 18:06:07,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:06:07,007 INFO L933 BasicCegarLoop]: 3154 mSDtfsCounter, 2817 mSDsluCounter, 5215 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2822 SdHoareTripleChecker+Valid, 7762 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:06:07,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2822 Valid, 7762 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 998 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2021-11-25 18:06:07,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7080 states. [2021-11-25 18:06:07,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7080 to 7049. [2021-11-25 18:06:07,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7049 states, 4114 states have (on average 1.2933884297520661) internal successors, (5321), 4407 states have internal predecessors, (5321), 2197 states have call successors, (2197), 701 states have call predecessors, (2197), 699 states have return successors, (2201), 2102 states have call predecessors, (2201), 2195 states have call successors, (2201) [2021-11-25 18:06:07,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7049 states to 7049 states and 9719 transitions. [2021-11-25 18:06:07,434 INFO L78 Accepts]: Start accepts. Automaton has 7049 states and 9719 transitions. Word has length 49 [2021-11-25 18:06:07,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:06:07,436 INFO L470 AbstractCegarLoop]: Abstraction has 7049 states and 9719 transitions. [2021-11-25 18:06:07,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-25 18:06:07,437 INFO L276 IsEmpty]: Start isEmpty. Operand 7049 states and 9719 transitions. [2021-11-25 18:06:07,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-25 18:06:07,439 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:06:07,439 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:06:07,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 18:06:07,440 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_unregister_chrdev_159Err0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-25 18:06:07,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:06:07,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1441879362, now seen corresponding path program 1 times [2021-11-25 18:06:07,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:06:07,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562700904] [2021-11-25 18:06:07,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:06:07,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:06:07,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:06:07,875 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:06:07,875 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:06:07,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562700904] [2021-11-25 18:06:07,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562700904] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:06:07,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:06:07,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-25 18:06:07,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712552322] [2021-11-25 18:06:07,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:06:07,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-25 18:06:07,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:06:07,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-25 18:06:07,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2021-11-25 18:06:07,878 INFO L87 Difference]: Start difference. First operand 7049 states and 9719 transitions. Second operand has 13 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 6 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2021-11-25 18:06:11,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:13,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:15,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:17,452 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:19,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:21,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:23,733 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:25,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:27,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:30,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:35,245 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:37,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:40,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:42,895 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:44,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:46,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:48,542 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:50,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:06:50,185 INFO L93 Difference]: Finished difference Result 7652 states and 10457 transitions. [2021-11-25 18:06:50,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 18:06:50,185 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 6 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 53 [2021-11-25 18:06:50,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:06:50,216 INFO L225 Difference]: With dead ends: 7652 [2021-11-25 18:06:50,217 INFO L226 Difference]: Without dead ends: 7142 [2021-11-25 18:06:50,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2021-11-25 18:06:50,224 INFO L933 BasicCegarLoop]: 2521 mSDtfsCounter, 28 mSDsluCounter, 28400 mSDsCounter, 0 mSdLazyCounter, 4293 mSolverCounterSat, 118 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 27541 SdHoareTripleChecker+Invalid, 4425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 4293 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:06:50,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 27541 Invalid, 4425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 4293 Invalid, 14 Unknown, 0 Unchecked, 41.8s Time] [2021-11-25 18:06:50,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7142 states. [2021-11-25 18:06:50,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7142 to 7089. [2021-11-25 18:06:50,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7089 states, 4136 states have (on average 1.2918278529980658) internal successors, (5343), 4427 states have internal predecessors, (5343), 2215 states have call successors, (2215), 701 states have call predecessors, (2215), 699 states have return successors, (2219), 2120 states have call predecessors, (2219), 2213 states have call successors, (2219) [2021-11-25 18:06:50,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7089 states to 7089 states and 9777 transitions. [2021-11-25 18:06:50,639 INFO L78 Accepts]: Start accepts. Automaton has 7089 states and 9777 transitions. Word has length 53 [2021-11-25 18:06:50,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:06:50,640 INFO L470 AbstractCegarLoop]: Abstraction has 7089 states and 9777 transitions. [2021-11-25 18:06:50,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 6 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2021-11-25 18:06:50,640 INFO L276 IsEmpty]: Start isEmpty. Operand 7089 states and 9777 transitions. [2021-11-25 18:06:50,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-25 18:06:50,641 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:06:50,641 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:06:50,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 18:06:50,642 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-25 18:06:50,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:06:50,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1257451654, now seen corresponding path program 1 times [2021-11-25 18:06:50,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:06:50,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274136691] [2021-11-25 18:06:50,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:06:50,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:06:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:06:50,825 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:06:50,825 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:06:50,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274136691] [2021-11-25 18:06:50,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274136691] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:06:50,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:06:50,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:06:50,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577061361] [2021-11-25 18:06:50,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:06:50,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:06:50,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:06:50,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:06:50,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:06:50,828 INFO L87 Difference]: Start difference. First operand 7089 states and 9777 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-25 18:06:53,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:56,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:58,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:06:58,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:06:58,625 INFO L93 Difference]: Finished difference Result 7089 states and 9777 transitions. [2021-11-25 18:06:58,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:06:58,625 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 54 [2021-11-25 18:06:58,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:06:58,654 INFO L225 Difference]: With dead ends: 7089 [2021-11-25 18:06:58,655 INFO L226 Difference]: Without dead ends: 7087 [2021-11-25 18:06:58,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:06:58,660 INFO L933 BasicCegarLoop]: 2534 mSDtfsCounter, 2858 mSDsluCounter, 2875 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2860 SdHoareTripleChecker+Valid, 5068 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:06:58,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2860 Valid, 5068 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 683 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2021-11-25 18:06:58,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7087 states. [2021-11-25 18:06:58,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7087 to 7087. [2021-11-25 18:06:58,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7087 states, 4135 states have (on average 1.2914147521160821) internal successors, (5340), 4425 states have internal predecessors, (5340), 2215 states have call successors, (2215), 701 states have call predecessors, (2215), 699 states have return successors, (2219), 2120 states have call predecessors, (2219), 2213 states have call successors, (2219) [2021-11-25 18:06:59,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7087 states to 7087 states and 9774 transitions. [2021-11-25 18:06:59,021 INFO L78 Accepts]: Start accepts. Automaton has 7087 states and 9774 transitions. Word has length 54 [2021-11-25 18:06:59,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:06:59,021 INFO L470 AbstractCegarLoop]: Abstraction has 7087 states and 9774 transitions. [2021-11-25 18:06:59,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-25 18:06:59,022 INFO L276 IsEmpty]: Start isEmpty. Operand 7087 states and 9774 transitions. [2021-11-25 18:06:59,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-25 18:06:59,023 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:06:59,023 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:06:59,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 18:06:59,023 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-25 18:06:59,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:06:59,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1508863522, now seen corresponding path program 1 times [2021-11-25 18:06:59,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:06:59,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579085720] [2021-11-25 18:06:59,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:06:59,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:06:59,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:06:59,166 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:06:59,166 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:06:59,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579085720] [2021-11-25 18:06:59,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579085720] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:06:59,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:06:59,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:06:59,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106613046] [2021-11-25 18:06:59,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:06:59,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:06:59,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:06:59,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:06:59,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:06:59,170 INFO L87 Difference]: Start difference. First operand 7087 states and 9774 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-25 18:07:01,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:04,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:07:05,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:07,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:07,085 INFO L93 Difference]: Finished difference Result 8699 states and 11780 transitions. [2021-11-25 18:07:07,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:07:07,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 59 [2021-11-25 18:07:07,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:07,120 INFO L225 Difference]: With dead ends: 8699 [2021-11-25 18:07:07,121 INFO L226 Difference]: Without dead ends: 8697 [2021-11-25 18:07:07,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:07:07,127 INFO L933 BasicCegarLoop]: 2959 mSDtfsCounter, 2814 mSDsluCounter, 4733 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2817 SdHoareTripleChecker+Valid, 7145 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:07,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2817 Valid, 7145 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 922 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2021-11-25 18:07:07,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8697 states. [2021-11-25 18:07:07,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8697 to 8439. [2021-11-25 18:07:07,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8439 states, 4908 states have (on average 1.2811735941320292) internal successors, (6288), 5235 states have internal predecessors, (6288), 2606 states have call successors, (2606), 891 states have call predecessors, (2606), 887 states have return successors, (2611), 2493 states have call predecessors, (2611), 2604 states have call successors, (2611) [2021-11-25 18:07:07,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8439 states to 8439 states and 11505 transitions. [2021-11-25 18:07:07,566 INFO L78 Accepts]: Start accepts. Automaton has 8439 states and 11505 transitions. Word has length 59 [2021-11-25 18:07:07,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:07,568 INFO L470 AbstractCegarLoop]: Abstraction has 8439 states and 11505 transitions. [2021-11-25 18:07:07,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-25 18:07:07,568 INFO L276 IsEmpty]: Start isEmpty. Operand 8439 states and 11505 transitions. [2021-11-25 18:07:07,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-25 18:07:07,570 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:07,570 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:07,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 18:07:07,571 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-25 18:07:07,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:07,571 INFO L85 PathProgramCache]: Analyzing trace with hash -281408222, now seen corresponding path program 1 times [2021-11-25 18:07:07,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:07,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713513868] [2021-11-25 18:07:07,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:07,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:07,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:07,709 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:07:07,710 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:07,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713513868] [2021-11-25 18:07:07,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713513868] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:07,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:07,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:07:07,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879675005] [2021-11-25 18:07:07,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:07,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:07:07,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:07,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:07:07,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:07:07,712 INFO L87 Difference]: Start difference. First operand 8439 states and 11505 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-25 18:07:10,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:13,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:07:15,828 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:07:18,185 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:19,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:19,056 INFO L93 Difference]: Finished difference Result 8577 states and 11624 transitions. [2021-11-25 18:07:19,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:07:19,069 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 64 [2021-11-25 18:07:19,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:19,103 INFO L225 Difference]: With dead ends: 8577 [2021-11-25 18:07:19,103 INFO L226 Difference]: Without dead ends: 8575 [2021-11-25 18:07:19,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:07:19,110 INFO L933 BasicCegarLoop]: 4830 mSDtfsCounter, 2804 mSDsluCounter, 8251 mSDsCounter, 0 mSdLazyCounter, 1614 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2809 SdHoareTripleChecker+Valid, 12113 SdHoareTripleChecker+Invalid, 1620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1614 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:19,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2809 Valid, 12113 Invalid, 1620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1614 Invalid, 4 Unknown, 0 Unchecked, 11.0s Time] [2021-11-25 18:07:19,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8575 states. [2021-11-25 18:07:19,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8575 to 8439. [2021-11-25 18:07:19,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8439 states, 4908 states have (on average 1.2809698451507743) internal successors, (6287), 5235 states have internal predecessors, (6287), 2606 states have call successors, (2606), 891 states have call predecessors, (2606), 887 states have return successors, (2611), 2493 states have call predecessors, (2611), 2604 states have call successors, (2611) [2021-11-25 18:07:19,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8439 states to 8439 states and 11504 transitions. [2021-11-25 18:07:19,529 INFO L78 Accepts]: Start accepts. Automaton has 8439 states and 11504 transitions. Word has length 64 [2021-11-25 18:07:19,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:19,531 INFO L470 AbstractCegarLoop]: Abstraction has 8439 states and 11504 transitions. [2021-11-25 18:07:19,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-25 18:07:19,531 INFO L276 IsEmpty]: Start isEmpty. Operand 8439 states and 11504 transitions. [2021-11-25 18:07:19,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-25 18:07:19,534 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:19,534 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:19,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 18:07:19,535 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-25 18:07:19,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:19,535 INFO L85 PathProgramCache]: Analyzing trace with hash 589897303, now seen corresponding path program 1 times [2021-11-25 18:07:19,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:19,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033976573] [2021-11-25 18:07:19,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:19,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:19,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:19,680 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:07:19,680 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:19,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033976573] [2021-11-25 18:07:19,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033976573] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:19,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:19,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:07:19,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178608727] [2021-11-25 18:07:19,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:19,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:07:19,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:19,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:07:19,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:07:19,683 INFO L87 Difference]: Start difference. First operand 8439 states and 11504 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-25 18:07:21,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:26,319 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:26,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:26,851 INFO L93 Difference]: Finished difference Result 8507 states and 11581 transitions. [2021-11-25 18:07:26,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:07:26,852 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 69 [2021-11-25 18:07:26,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:26,894 INFO L225 Difference]: With dead ends: 8507 [2021-11-25 18:07:26,894 INFO L226 Difference]: Without dead ends: 8505 [2021-11-25 18:07:26,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:07:26,898 INFO L933 BasicCegarLoop]: 2553 mSDtfsCounter, 2849 mSDsluCounter, 2936 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2853 SdHoareTripleChecker+Valid, 5140 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:26,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2853 Valid, 5140 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 694 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2021-11-25 18:07:26,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8505 states. [2021-11-25 18:07:27,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8505 to 8497. [2021-11-25 18:07:27,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8497 states, 4941 states have (on average 1.2799028536733454) internal successors, (6324), 5269 states have internal predecessors, (6324), 2620 states have call successors, (2620), 903 states have call predecessors, (2620), 899 states have return successors, (2625), 2505 states have call predecessors, (2625), 2618 states have call successors, (2625) [2021-11-25 18:07:27,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8497 states to 8497 states and 11569 transitions. [2021-11-25 18:07:27,331 INFO L78 Accepts]: Start accepts. Automaton has 8497 states and 11569 transitions. Word has length 69 [2021-11-25 18:07:27,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:27,331 INFO L470 AbstractCegarLoop]: Abstraction has 8497 states and 11569 transitions. [2021-11-25 18:07:27,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-25 18:07:27,332 INFO L276 IsEmpty]: Start isEmpty. Operand 8497 states and 11569 transitions. [2021-11-25 18:07:27,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-25 18:07:27,339 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:27,339 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:27,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 18:07:27,339 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-25 18:07:27,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:27,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1570564766, now seen corresponding path program 1 times [2021-11-25 18:07:27,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:27,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092038529] [2021-11-25 18:07:27,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:27,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:27,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:27,484 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:07:27,485 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:27,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092038529] [2021-11-25 18:07:27,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092038529] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:27,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:27,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:07:27,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312276498] [2021-11-25 18:07:27,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:27,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:07:27,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:27,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:07:27,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:07:27,487 INFO L87 Difference]: Start difference. First operand 8497 states and 11569 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 18:07:29,804 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:33,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:07:35,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:36,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:36,103 INFO L93 Difference]: Finished difference Result 13386 states and 18253 transitions. [2021-11-25 18:07:36,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:07:36,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 74 [2021-11-25 18:07:36,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:36,163 INFO L225 Difference]: With dead ends: 13386 [2021-11-25 18:07:36,164 INFO L226 Difference]: Without dead ends: 13384 [2021-11-25 18:07:36,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:07:36,171 INFO L933 BasicCegarLoop]: 3104 mSDtfsCounter, 2460 mSDsluCounter, 6276 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2462 SdHoareTripleChecker+Valid, 8705 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:36,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2462 Valid, 8705 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1030 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2021-11-25 18:07:36,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13384 states. [2021-11-25 18:07:36,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13384 to 13152. [2021-11-25 18:07:36,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13152 states, 7619 states have (on average 1.2753642210263814) internal successors, (9717), 8079 states have internal predecessors, (9717), 4086 states have call successors, (4086), 1414 states have call predecessors, (4086), 1410 states have return successors, (4201), 3925 states have call predecessors, (4201), 4084 states have call successors, (4201) [2021-11-25 18:07:36,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13152 states to 13152 states and 18004 transitions. [2021-11-25 18:07:36,857 INFO L78 Accepts]: Start accepts. Automaton has 13152 states and 18004 transitions. Word has length 74 [2021-11-25 18:07:36,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:36,858 INFO L470 AbstractCegarLoop]: Abstraction has 13152 states and 18004 transitions. [2021-11-25 18:07:36,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 18:07:36,858 INFO L276 IsEmpty]: Start isEmpty. Operand 13152 states and 18004 transitions. [2021-11-25 18:07:36,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-25 18:07:36,860 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:36,860 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:36,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 18:07:36,860 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_drivers_base_class__double_registrationErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-25 18:07:36,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:36,861 INFO L85 PathProgramCache]: Analyzing trace with hash 2132334352, now seen corresponding path program 1 times [2021-11-25 18:07:36,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:36,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251589886] [2021-11-25 18:07:36,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:36,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:36,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:37,020 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-11-25 18:07:37,020 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:37,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251589886] [2021-11-25 18:07:37,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251589886] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:37,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:37,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:07:37,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087176424] [2021-11-25 18:07:37,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:37,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:07:37,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:37,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:07:37,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:07:37,022 INFO L87 Difference]: Start difference. First operand 13152 states and 18004 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-25 18:07:41,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:43,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:43,533 INFO L93 Difference]: Finished difference Result 13436 states and 18305 transitions. [2021-11-25 18:07:43,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:07:43,533 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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 77 [2021-11-25 18:07:43,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:43,586 INFO L225 Difference]: With dead ends: 13436 [2021-11-25 18:07:43,587 INFO L226 Difference]: Without dead ends: 13434 [2021-11-25 18:07:43,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 18:07:43,596 INFO L933 BasicCegarLoop]: 3341 mSDtfsCounter, 2843 mSDsluCounter, 9496 mSDsCounter, 0 mSdLazyCounter, 1518 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2846 SdHoareTripleChecker+Valid, 11747 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1518 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:43,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2846 Valid, 11747 Invalid, 1520 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1518 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2021-11-25 18:07:43,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13434 states. [2021-11-25 18:07:44,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13434 to 13150. [2021-11-25 18:07:44,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13150 states, 7618 states have (on average 1.2746127592543974) internal successors, (9710), 8077 states have internal predecessors, (9710), 4086 states have call successors, (4086), 1414 states have call predecessors, (4086), 1410 states have return successors, (4201), 3925 states have call predecessors, (4201), 4084 states have call successors, (4201) [2021-11-25 18:07:44,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13150 states to 13150 states and 17997 transitions. [2021-11-25 18:07:44,321 INFO L78 Accepts]: Start accepts. Automaton has 13150 states and 17997 transitions. Word has length 77 [2021-11-25 18:07:44,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:44,322 INFO L470 AbstractCegarLoop]: Abstraction has 13150 states and 17997 transitions. [2021-11-25 18:07:44,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-25 18:07:44,322 INFO L276 IsEmpty]: Start isEmpty. Operand 13150 states and 17997 transitions. [2021-11-25 18:07:44,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-25 18:07:44,324 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:44,324 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:44,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-25 18:07:44,324 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-25 18:07:44,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:44,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1779379361, now seen corresponding path program 1 times [2021-11-25 18:07:44,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:44,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013063895] [2021-11-25 18:07:44,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:44,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:44,458 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:07:44,458 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:44,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013063895] [2021-11-25 18:07:44,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013063895] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:44,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:44,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:07:44,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253135532] [2021-11-25 18:07:44,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:44,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:07:44,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:44,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:07:44,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:07:44,460 INFO L87 Difference]: Start difference. First operand 13150 states and 17997 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 18:07:47,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:07:49,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:50,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:50,367 INFO L93 Difference]: Finished difference Result 13342 states and 18199 transitions. [2021-11-25 18:07:50,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:07:50,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 76 [2021-11-25 18:07:50,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:50,405 INFO L225 Difference]: With dead ends: 13342 [2021-11-25 18:07:50,405 INFO L226 Difference]: Without dead ends: 13340 [2021-11-25 18:07:50,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:07:50,411 INFO L933 BasicCegarLoop]: 2538 mSDtfsCounter, 2817 mSDsluCounter, 2957 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2819 SdHoareTripleChecker+Valid, 5143 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:50,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2819 Valid, 5143 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 701 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2021-11-25 18:07:50,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13340 states. [2021-11-25 18:07:51,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13340 to 13336. [2021-11-25 18:07:51,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13336 states, 7713 states have (on average 1.2717489952029042) internal successors, (9809), 8171 states have internal predecessors, (9809), 4134 states have call successors, (4134), 1458 states have call predecessors, (4134), 1454 states have return successors, (4249), 3973 states have call predecessors, (4249), 4132 states have call successors, (4249) [2021-11-25 18:07:51,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13336 states to 13336 states and 18192 transitions. [2021-11-25 18:07:51,211 INFO L78 Accepts]: Start accepts. Automaton has 13336 states and 18192 transitions. Word has length 76 [2021-11-25 18:07:51,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:51,211 INFO L470 AbstractCegarLoop]: Abstraction has 13336 states and 18192 transitions. [2021-11-25 18:07:51,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 18:07:51,211 INFO L276 IsEmpty]: Start isEmpty. Operand 13336 states and 18192 transitions. [2021-11-25 18:07:51,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-25 18:07:51,213 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:51,213 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:51,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-25 18:07:51,213 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-25 18:07:51,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:51,214 INFO L85 PathProgramCache]: Analyzing trace with hash -805412745, now seen corresponding path program 1 times [2021-11-25 18:07:51,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:51,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243972153] [2021-11-25 18:07:51,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:51,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:51,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:51,354 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:07:51,354 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:51,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243972153] [2021-11-25 18:07:51,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243972153] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:51,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:51,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:07:51,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829783037] [2021-11-25 18:07:51,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:51,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:07:51,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:51,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:07:51,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:07:51,356 INFO L87 Difference]: Start difference. First operand 13336 states and 18192 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 18:07:54,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:07:56,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:07:59,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:00,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:08:00,477 INFO L93 Difference]: Finished difference Result 21258 states and 29414 transitions. [2021-11-25 18:08:00,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:08:00,477 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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 81 [2021-11-25 18:08:00,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:08:00,548 INFO L225 Difference]: With dead ends: 21258 [2021-11-25 18:08:00,548 INFO L226 Difference]: Without dead ends: 21256 [2021-11-25 18:08:00,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:08:00,558 INFO L933 BasicCegarLoop]: 3462 mSDtfsCounter, 2800 mSDsluCounter, 6687 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2802 SdHoareTripleChecker+Valid, 9427 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:08:00,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2802 Valid, 9427 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1127 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2021-11-25 18:08:00,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21256 states. [2021-11-25 18:08:01,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21256 to 21053. [2021-11-25 18:08:01,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21053 states, 12231 states have (on average 1.2748753168179217) internal successors, (15593), 12925 states have internal predecessors, (15593), 6581 states have call successors, (6581), 2210 states have call predecessors, (6581), 2206 states have return successors, (7032), 6328 states have call predecessors, (7032), 6579 states have call successors, (7032) [2021-11-25 18:08:01,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21053 states to 21053 states and 29206 transitions. [2021-11-25 18:08:01,606 INFO L78 Accepts]: Start accepts. Automaton has 21053 states and 29206 transitions. Word has length 81 [2021-11-25 18:08:01,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:08:01,606 INFO L470 AbstractCegarLoop]: Abstraction has 21053 states and 29206 transitions. [2021-11-25 18:08:01,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 18:08:01,607 INFO L276 IsEmpty]: Start isEmpty. Operand 21053 states and 29206 transitions. [2021-11-25 18:08:01,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-25 18:08:01,608 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:08:01,609 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:08:01,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-25 18:08:01,609 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-25 18:08:01,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:08:01,610 INFO L85 PathProgramCache]: Analyzing trace with hash -551935699, now seen corresponding path program 1 times [2021-11-25 18:08:01,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:08:01,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127916366] [2021-11-25 18:08:01,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:08:01,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:08:01,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:08:01,782 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-11-25 18:08:01,783 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:08:01,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127916366] [2021-11-25 18:08:01,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127916366] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:08:01,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:08:01,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:08:01,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158793106] [2021-11-25 18:08:01,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:08:01,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:08:01,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:08:01,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:08:01,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:08:01,787 INFO L87 Difference]: Start difference. First operand 21053 states and 29206 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 18:08:04,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:06,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:09,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:08:12,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:13,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:08:13,521 INFO L93 Difference]: Finished difference Result 21090 states and 29228 transitions. [2021-11-25 18:08:13,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:08:13,522 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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 87 [2021-11-25 18:08:13,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:08:13,570 INFO L225 Difference]: With dead ends: 21090 [2021-11-25 18:08:13,570 INFO L226 Difference]: Without dead ends: 21088 [2021-11-25 18:08:13,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 18:08:13,576 INFO L933 BasicCegarLoop]: 3141 mSDtfsCounter, 2798 mSDsluCounter, 8728 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2802 SdHoareTripleChecker+Valid, 10874 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:08:13,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2802 Valid, 10874 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1395 Invalid, 4 Unknown, 0 Unchecked, 10.8s Time] [2021-11-25 18:08:13,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21088 states. [2021-11-25 18:08:14,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21088 to 21057. [2021-11-25 18:08:14,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21057 states, 12234 states have (on average 1.2731731240804316) internal successors, (15576), 12929 states have internal predecessors, (15576), 6581 states have call successors, (6581), 2210 states have call predecessors, (6581), 2208 states have return successors, (7034), 6328 states have call predecessors, (7034), 6579 states have call successors, (7034) [2021-11-25 18:08:14,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21057 states to 21057 states and 29191 transitions. [2021-11-25 18:08:14,698 INFO L78 Accepts]: Start accepts. Automaton has 21057 states and 29191 transitions. Word has length 87 [2021-11-25 18:08:14,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:08:14,698 INFO L470 AbstractCegarLoop]: Abstraction has 21057 states and 29191 transitions. [2021-11-25 18:08:14,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 18:08:14,699 INFO L276 IsEmpty]: Start isEmpty. Operand 21057 states and 29191 transitions. [2021-11-25 18:08:14,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-25 18:08:14,707 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:08:14,707 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:08:14,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-25 18:08:14,707 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-25 18:08:14,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:08:14,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1714358371, now seen corresponding path program 1 times [2021-11-25 18:08:14,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:08:14,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118858867] [2021-11-25 18:08:14,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:08:14,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:08:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:08:14,826 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:08:14,827 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:08:14,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118858867] [2021-11-25 18:08:14,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118858867] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:08:14,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:08:14,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:08:14,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159189275] [2021-11-25 18:08:14,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:08:14,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:08:14,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:08:14,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:08:14,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:08:14,829 INFO L87 Difference]: Start difference. First operand 21057 states and 29191 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 18:08:17,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:20,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:08:22,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:23,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:08:23,917 INFO L93 Difference]: Finished difference Result 21088 states and 29207 transitions. [2021-11-25 18:08:23,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:08:23,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 86 [2021-11-25 18:08:23,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:08:23,987 INFO L225 Difference]: With dead ends: 21088 [2021-11-25 18:08:23,987 INFO L226 Difference]: Without dead ends: 21086 [2021-11-25 18:08:23,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:08:23,999 INFO L933 BasicCegarLoop]: 3142 mSDtfsCounter, 2798 mSDsluCounter, 5203 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2803 SdHoareTripleChecker+Valid, 7738 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:08:23,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2803 Valid, 7738 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 997 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2021-11-25 18:08:24,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21086 states. [2021-11-25 18:08:25,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21086 to 21055. [2021-11-25 18:08:25,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21055 states, 12233 states have (on average 1.2730319627237798) internal successors, (15573), 12927 states have internal predecessors, (15573), 6581 states have call successors, (6581), 2210 states have call predecessors, (6581), 2208 states have return successors, (7034), 6328 states have call predecessors, (7034), 6579 states have call successors, (7034) [2021-11-25 18:08:25,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21055 states to 21055 states and 29188 transitions. [2021-11-25 18:08:25,382 INFO L78 Accepts]: Start accepts. Automaton has 21055 states and 29188 transitions. Word has length 86 [2021-11-25 18:08:25,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:08:25,383 INFO L470 AbstractCegarLoop]: Abstraction has 21055 states and 29188 transitions. [2021-11-25 18:08:25,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 18:08:25,383 INFO L276 IsEmpty]: Start isEmpty. Operand 21055 states and 29188 transitions. [2021-11-25 18:08:25,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-25 18:08:25,385 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:08:25,386 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:08:25,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-25 18:08:25,386 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-25 18:08:25,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:08:25,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1054331311, now seen corresponding path program 1 times [2021-11-25 18:08:25,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:08:25,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364150193] [2021-11-25 18:08:25,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:08:25,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:08:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:08:25,620 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:08:25,620 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:08:25,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364150193] [2021-11-25 18:08:25,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364150193] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:08:25,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:08:25,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:08:25,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966473067] [2021-11-25 18:08:25,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:08:25,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:08:25,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:08:25,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:08:25,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:08:25,623 INFO L87 Difference]: Start difference. First operand 21055 states and 29188 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 18:08:29,256 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:08:31,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:32,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:08:32,985 INFO L93 Difference]: Finished difference Result 21086 states and 29204 transitions. [2021-11-25 18:08:32,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:08:32,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 91 [2021-11-25 18:08:32,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:08:33,049 INFO L225 Difference]: With dead ends: 21086 [2021-11-25 18:08:33,049 INFO L226 Difference]: Without dead ends: 21084 [2021-11-25 18:08:33,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:08:33,060 INFO L933 BasicCegarLoop]: 3140 mSDtfsCounter, 2795 mSDsluCounter, 5201 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2800 SdHoareTripleChecker+Valid, 7734 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:08:33,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2800 Valid, 7734 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 998 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2021-11-25 18:08:33,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21084 states. [2021-11-25 18:08:34,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21084 to 21053. [2021-11-25 18:08:34,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21053 states, 12232 states have (on average 1.2728907782864618) internal successors, (15570), 12925 states have internal predecessors, (15570), 6581 states have call successors, (6581), 2210 states have call predecessors, (6581), 2208 states have return successors, (7034), 6328 states have call predecessors, (7034), 6579 states have call successors, (7034) [2021-11-25 18:08:34,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21053 states to 21053 states and 29185 transitions. [2021-11-25 18:08:34,140 INFO L78 Accepts]: Start accepts. Automaton has 21053 states and 29185 transitions. Word has length 91 [2021-11-25 18:08:34,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:08:34,140 INFO L470 AbstractCegarLoop]: Abstraction has 21053 states and 29185 transitions. [2021-11-25 18:08:34,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 18:08:34,141 INFO L276 IsEmpty]: Start isEmpty. Operand 21053 states and 29185 transitions. [2021-11-25 18:08:34,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-25 18:08:34,142 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:08:34,143 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:08:34,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-25 18:08:34,143 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-25 18:08:34,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:08:34,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1790842717, now seen corresponding path program 1 times [2021-11-25 18:08:34,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:08:34,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314823482] [2021-11-25 18:08:34,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:08:34,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:08:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:08:34,289 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:08:34,289 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:08:34,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314823482] [2021-11-25 18:08:34,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314823482] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:08:34,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:08:34,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:08:34,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636999252] [2021-11-25 18:08:34,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:08:34,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:08:34,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:08:34,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:08:34,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:08:34,292 INFO L87 Difference]: Start difference. First operand 21053 states and 29185 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 18:08:38,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:08:41,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:08:43,468 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:44,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:08:44,087 INFO L93 Difference]: Finished difference Result 33941 states and 47774 transitions. [2021-11-25 18:08:44,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:08:44,087 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 96 [2021-11-25 18:08:44,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:08:44,200 INFO L225 Difference]: With dead ends: 33941 [2021-11-25 18:08:44,200 INFO L226 Difference]: Without dead ends: 33939 [2021-11-25 18:08:44,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:08:44,214 INFO L933 BasicCegarLoop]: 2974 mSDtfsCounter, 1865 mSDsluCounter, 6149 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1867 SdHoareTripleChecker+Valid, 8446 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:08:44,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1867 Valid, 8446 Invalid, 1035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1031 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2021-11-25 18:08:44,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33939 states. [2021-11-25 18:08:45,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33939 to 33572. [2021-11-25 18:08:45,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33572 states, 19626 states have (on average 1.2774380923265056) internal successors, (25071), 20759 states have internal predecessors, (25071), 10346 states have call successors, (10346), 3592 states have call predecessors, (10346), 3568 states have return successors, (11875), 9847 states have call predecessors, (11875), 10344 states have call successors, (11875) [2021-11-25 18:08:45,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33572 states to 33572 states and 47292 transitions. [2021-11-25 18:08:45,754 INFO L78 Accepts]: Start accepts. Automaton has 33572 states and 47292 transitions. Word has length 96 [2021-11-25 18:08:45,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:08:45,755 INFO L470 AbstractCegarLoop]: Abstraction has 33572 states and 47292 transitions. [2021-11-25 18:08:45,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 18:08:45,755 INFO L276 IsEmpty]: Start isEmpty. Operand 33572 states and 47292 transitions. [2021-11-25 18:08:45,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-25 18:08:45,757 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:08:45,757 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:08:45,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-25 18:08:45,758 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-25 18:08:45,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:08:45,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1578625922, now seen corresponding path program 1 times [2021-11-25 18:08:45,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:08:45,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117285866] [2021-11-25 18:08:45,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:08:45,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:08:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:08:46,131 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:08:46,131 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:08:46,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117285866] [2021-11-25 18:08:46,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117285866] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:08:46,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:08:46,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:08:46,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674537061] [2021-11-25 18:08:46,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:08:46,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:08:46,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:08:46,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:08:46,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:08:46,134 INFO L87 Difference]: Start difference. First operand 33572 states and 47292 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 18:08:50,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:08:52,957 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:08:54,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:08:54,135 INFO L93 Difference]: Finished difference Result 33603 states and 47308 transitions. [2021-11-25 18:08:54,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:08:54,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 101 [2021-11-25 18:08:54,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:08:54,247 INFO L225 Difference]: With dead ends: 33603 [2021-11-25 18:08:54,247 INFO L226 Difference]: Without dead ends: 33601 [2021-11-25 18:08:54,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:08:54,259 INFO L933 BasicCegarLoop]: 3138 mSDtfsCounter, 2791 mSDsluCounter, 5199 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2796 SdHoareTripleChecker+Valid, 7730 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:08:54,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2796 Valid, 7730 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 998 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2021-11-25 18:08:54,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33601 states. [2021-11-25 18:08:56,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33601 to 33570. [2021-11-25 18:08:56,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33570 states, 19625 states have (on average 1.2773503184713375) internal successors, (25068), 20757 states have internal predecessors, (25068), 10346 states have call successors, (10346), 3592 states have call predecessors, (10346), 3568 states have return successors, (11875), 9847 states have call predecessors, (11875), 10344 states have call successors, (11875) [2021-11-25 18:08:56,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33570 states to 33570 states and 47289 transitions. [2021-11-25 18:08:56,266 INFO L78 Accepts]: Start accepts. Automaton has 33570 states and 47289 transitions. Word has length 101 [2021-11-25 18:08:56,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:08:56,267 INFO L470 AbstractCegarLoop]: Abstraction has 33570 states and 47289 transitions. [2021-11-25 18:08:56,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 18:08:56,267 INFO L276 IsEmpty]: Start isEmpty. Operand 33570 states and 47289 transitions. [2021-11-25 18:08:56,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-25 18:08:56,270 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:08:56,270 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:08:56,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-25 18:08:56,270 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_unregister_chrdev_159Err0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-25 18:08:56,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:08:56,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1850674937, now seen corresponding path program 1 times [2021-11-25 18:08:56,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:08:56,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142116747] [2021-11-25 18:08:56,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:08:56,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:08:56,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:08:56,749 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-11-25 18:08:56,749 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:08:56,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142116747] [2021-11-25 18:08:56,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142116747] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:08:56,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:08:56,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-25 18:08:56,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101629251] [2021-11-25 18:08:56,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:08:56,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-25 18:08:56,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:08:56,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-25 18:08:56,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-11-25 18:08:56,751 INFO L87 Difference]: Start difference. First operand 33570 states and 47289 transitions. Second operand has 13 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 6 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) [2021-11-25 18:09:00,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:02,613 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:04,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:06,820 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:08,917 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:11,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:13,108 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:15,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:17,292 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:19,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:25,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:09:27,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:09:29,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:09:33,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:36,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:09:39,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:09:39,409 INFO L93 Difference]: Finished difference Result 42285 states and 58204 transitions. [2021-11-25 18:09:39,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-25 18:09:39,409 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 6 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) Word has length 106 [2021-11-25 18:09:39,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:09:39,505 INFO L225 Difference]: With dead ends: 42285 [2021-11-25 18:09:39,505 INFO L226 Difference]: Without dead ends: 39355 [2021-11-25 18:09:39,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=513, Unknown=0, NotChecked=0, Total=600 [2021-11-25 18:09:39,525 INFO L933 BasicCegarLoop]: 3175 mSDtfsCounter, 2991 mSDsluCounter, 37533 mSDsCounter, 0 mSdLazyCounter, 5476 mSolverCounterSat, 227 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3023 SdHoareTripleChecker+Valid, 36575 SdHoareTripleChecker+Invalid, 5717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 5476 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:09:39,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3023 Valid, 36575 Invalid, 5717 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [227 Valid, 5476 Invalid, 14 Unknown, 0 Unchecked, 40.0s Time] [2021-11-25 18:09:39,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39355 states. [2021-11-25 18:09:41,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39355 to 37504. [2021-11-25 18:09:41,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37504 states, 21889 states have (on average 1.2682625976517885) internal successors, (27761), 23107 states have internal predecessors, (27761), 11446 states have call successors, (11446), 4148 states have call predecessors, (11446), 4138 states have return successors, (13145), 10911 states have call predecessors, (13145), 11444 states have call successors, (13145) [2021-11-25 18:09:41,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37504 states to 37504 states and 52352 transitions. [2021-11-25 18:09:41,621 INFO L78 Accepts]: Start accepts. Automaton has 37504 states and 52352 transitions. Word has length 106 [2021-11-25 18:09:41,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:09:41,622 INFO L470 AbstractCegarLoop]: Abstraction has 37504 states and 52352 transitions. [2021-11-25 18:09:41,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 6 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) [2021-11-25 18:09:41,622 INFO L276 IsEmpty]: Start isEmpty. Operand 37504 states and 52352 transitions. [2021-11-25 18:09:41,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-25 18:09:41,625 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:09:41,625 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:09:41,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-25 18:09:41,626 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_lib_idr__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-25 18:09:41,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:09:41,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1045275893, now seen corresponding path program 1 times [2021-11-25 18:09:41,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:09:41,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560346475] [2021-11-25 18:09:41,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:09:41,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:09:41,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:09:41,978 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:09:41,979 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:09:41,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560346475] [2021-11-25 18:09:41,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560346475] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:09:41,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:09:41,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:09:41,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945941430] [2021-11-25 18:09:41,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:09:41,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:09:41,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:09:41,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:09:41,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:09:41,981 INFO L87 Difference]: Start difference. First operand 37504 states and 52352 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-25 18:09:44,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:46,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:52,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:09:53,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:09:53,619 INFO L93 Difference]: Finished difference Result 55366 states and 78086 transitions. [2021-11-25 18:09:53,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 18:09:53,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 107 [2021-11-25 18:09:53,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:09:53,770 INFO L225 Difference]: With dead ends: 55366 [2021-11-25 18:09:53,770 INFO L226 Difference]: Without dead ends: 55364 [2021-11-25 18:09:53,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 18:09:53,789 INFO L933 BasicCegarLoop]: 3012 mSDtfsCounter, 2196 mSDsluCounter, 9529 mSDsCounter, 0 mSdLazyCounter, 1371 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2198 SdHoareTripleChecker+Valid, 11524 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1371 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:09:53,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2198 Valid, 11524 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1371 Invalid, 3 Unknown, 0 Unchecked, 9.0s Time] [2021-11-25 18:09:53,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55364 states. [2021-11-25 18:09:56,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55364 to 55179. [2021-11-25 18:09:56,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55179 states, 32077 states have (on average 1.2636156747825544) internal successors, (40533), 33807 states have internal predecessors, (40533), 16901 states have call successors, (16901), 6206 states have call predecessors, (16901), 6170 states have return successors, (20472), 16118 states have call predecessors, (20472), 16899 states have call successors, (20472) [2021-11-25 18:09:57,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55179 states to 55179 states and 77906 transitions. [2021-11-25 18:09:57,198 INFO L78 Accepts]: Start accepts. Automaton has 55179 states and 77906 transitions. Word has length 107 [2021-11-25 18:09:57,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:09:57,198 INFO L470 AbstractCegarLoop]: Abstraction has 55179 states and 77906 transitions. [2021-11-25 18:09:57,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-25 18:09:57,199 INFO L276 IsEmpty]: Start isEmpty. Operand 55179 states and 77906 transitions. [2021-11-25 18:09:57,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-25 18:09:57,201 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:09:57,201 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:09:57,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-25 18:09:57,202 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_lib_idr__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-25 18:09:57,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:09:57,202 INFO L85 PathProgramCache]: Analyzing trace with hash -119337864, now seen corresponding path program 1 times [2021-11-25 18:09:57,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:09:57,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480238836] [2021-11-25 18:09:57,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:09:57,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:09:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:09:57,336 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:09:57,337 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:09:57,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480238836] [2021-11-25 18:09:57,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480238836] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:09:57,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:09:57,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:09:57,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396107913] [2021-11-25 18:09:57,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:09:57,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:09:57,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:09:57,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:09:57,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:09:57,340 INFO L87 Difference]: Start difference. First operand 55179 states and 77906 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-25 18:09:59,915 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:10:02,015 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:10:06,513 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:10:11,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:10:14,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:10:14,364 INFO L93 Difference]: Finished difference Result 79748 states and 114634 transitions. [2021-11-25 18:10:14,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 18:10:14,364 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 112 [2021-11-25 18:10:14,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:10:14,620 INFO L225 Difference]: With dead ends: 79748 [2021-11-25 18:10:14,620 INFO L226 Difference]: Without dead ends: 79746 [2021-11-25 18:10:14,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 18:10:14,647 INFO L933 BasicCegarLoop]: 3469 mSDtfsCounter, 2862 mSDsluCounter, 10539 mSDsCounter, 0 mSdLazyCounter, 1517 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2863 SdHoareTripleChecker+Valid, 12892 SdHoareTripleChecker+Invalid, 1525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1517 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:10:14,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2863 Valid, 12892 Invalid, 1525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1517 Invalid, 4 Unknown, 0 Unchecked, 12.3s Time] [2021-11-25 18:10:14,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79746 states. [2021-11-25 18:10:19,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79746 to 78248. [2021-11-25 18:10:19,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78248 states, 45532 states have (on average 1.264495300008785) internal successors, (57575), 48104 states have internal predecessors, (57575), 24048 states have call successors, (24048), 8802 states have call predecessors, (24048), 8637 states have return successors, (31274), 22711 states have call predecessors, (31274), 24046 states have call successors, (31274) [2021-11-25 18:10:20,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78248 states to 78248 states and 112897 transitions. [2021-11-25 18:10:20,441 INFO L78 Accepts]: Start accepts. Automaton has 78248 states and 112897 transitions. Word has length 112 [2021-11-25 18:10:20,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:10:20,442 INFO L470 AbstractCegarLoop]: Abstraction has 78248 states and 112897 transitions. [2021-11-25 18:10:20,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-25 18:10:20,442 INFO L276 IsEmpty]: Start isEmpty. Operand 78248 states and 112897 transitions. [2021-11-25 18:10:20,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-25 18:10:20,446 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:10:20,446 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:10:20,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-25 18:10:20,447 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_unregister_chrdev_159Err0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-25 18:10:20,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:10:20,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1051672773, now seen corresponding path program 1 times [2021-11-25 18:10:20,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:10:20,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043978447] [2021-11-25 18:10:20,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:10:20,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:10:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:10:20,909 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-11-25 18:10:20,909 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:10:20,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043978447] [2021-11-25 18:10:20,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043978447] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:10:20,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187833859] [2021-11-25 18:10:20,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:10:20,910 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:10:20,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:10:20,913 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:10:20,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5c803b1-4ad6-458b-9769-501b3a1faaac/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 18:10:21,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:10:21,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 2357 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-25 18:10:21,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:10:22,479 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-11-25 18:10:22,480 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:10:22,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187833859] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:10:22,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 18:10:22,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2021-11-25 18:10:22,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001233119] [2021-11-25 18:10:22,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:10:22,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 18:10:22,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:10:22,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 18:10:22,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-25 18:10:22,482 INFO L87 Difference]: Start difference. First operand 78248 states and 112897 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-25 18:10:25,370 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:10:27,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:10:32,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:10:37,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:10:39,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:10:39,210 INFO L93 Difference]: Finished difference Result 87414 states and 124274 transitions. [2021-11-25 18:10:39,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 18:10:39,211 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 119 [2021-11-25 18:10:39,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:10:39,528 INFO L225 Difference]: With dead ends: 87414 [2021-11-25 18:10:39,528 INFO L226 Difference]: Without dead ends: 75201 [2021-11-25 18:10:39,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-11-25 18:10:39,599 INFO L933 BasicCegarLoop]: 2782 mSDtfsCounter, 337 mSDsluCounter, 15078 mSDsCounter, 0 mSdLazyCounter, 2127 mSolverCounterSat, 275 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 16133 SdHoareTripleChecker+Invalid, 2406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 2127 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:10:39,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 16133 Invalid, 2406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 2127 Invalid, 4 Unknown, 0 Unchecked, 12.4s Time] [2021-11-25 18:10:39,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75201 states.