./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P --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 112291a0afbd95f38753698288bc21e678f8fc599868e66751c5bf984ca2e210 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:12:36,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:12:36,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:12:36,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:12:36,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:12:36,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:12:36,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:12:36,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:12:36,798 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:12:36,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:12:36,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:12:36,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:12:36,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:12:36,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:12:36,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:12:36,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:12:36,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:12:36,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:12:36,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:12:36,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:12:36,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:12:36,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:12:36,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:12:36,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:12:36,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:12:36,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:12:36,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:12:36,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:12:36,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:12:36,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:12:36,855 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:12:36,856 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:12:36,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:12:36,859 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:12:36,860 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:12:36,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:12:36,861 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:12:36,861 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:12:36,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:12:36,863 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:12:36,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:12:36,864 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 23:12:36,911 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:12:36,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:12:36,912 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:12:36,912 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:12:36,916 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:12:36,916 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:12:36,916 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:12:36,917 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:12:36,917 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:12:36,917 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:12:36,918 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:12:36,918 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:12:36,919 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:12:36,919 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:12:36,919 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:12:36,919 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:12:36,919 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:12:36,920 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:12:36,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:12:36,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:12:36,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:12:36,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:12:36,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:12:36,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:12:36,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:12:36,922 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:12:36,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:12:36,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:12:36,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:12:36,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:12:36,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:12:36,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:12:36,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:12:36,925 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:12:36,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:12:36,926 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:12:36,926 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:12:36,926 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:12:36,926 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_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 112291a0afbd95f38753698288bc21e678f8fc599868e66751c5bf984ca2e210 [2021-11-20 23:12:37,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:12:37,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:12:37,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:12:37,201 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:12:37,202 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:12:37,203 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i [2021-11-20 23:12:37,281 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/data/3062e2fde/c0316f419c4a4af685d63c736c7f3ad0/FLAGd50ce7c5a [2021-11-20 23:12:38,223 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:12:38,224 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i [2021-11-20 23:12:38,299 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/data/3062e2fde/c0316f419c4a4af685d63c736c7f3ad0/FLAGd50ce7c5a [2021-11-20 23:12:38,619 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/data/3062e2fde/c0316f419c4a4af685d63c736c7f3ad0 [2021-11-20 23:12:38,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:12:38,623 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:12:38,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:12:38,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:12:38,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:12:38,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:12:38" (1/1) ... [2021-11-20 23:12:38,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b004590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:38, skipping insertion in model container [2021-11-20 23:12:38,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:12:38" (1/1) ... [2021-11-20 23:12:38,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:12:38,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:12:42,751 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399219,399232] [2021-11-20 23:12:42,754 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399364,399377] [2021-11-20 23:12:42,755 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399510,399523] [2021-11-20 23:12:42,755 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399675,399688] [2021-11-20 23:12:42,755 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399833,399846] [2021-11-20 23:12:42,756 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399991,400004] [2021-11-20 23:12:42,756 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400149,400162] [2021-11-20 23:12:42,757 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400309,400322] [2021-11-20 23:12:42,757 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400468,400481] [2021-11-20 23:12:42,758 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400607,400620] [2021-11-20 23:12:42,758 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400749,400762] [2021-11-20 23:12:42,759 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400898,400911] [2021-11-20 23:12:42,759 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401037,401050] [2021-11-20 23:12:42,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401192,401205] [2021-11-20 23:12:42,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401352,401365] [2021-11-20 23:12:42,761 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401503,401516] [2021-11-20 23:12:42,761 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401654,401667] [2021-11-20 23:12:42,762 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401806,401819] [2021-11-20 23:12:42,762 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401955,401968] [2021-11-20 23:12:42,763 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402103,402116] [2021-11-20 23:12:42,763 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402260,402273] [2021-11-20 23:12:42,764 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402409,402422] [2021-11-20 23:12:42,764 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402565,402578] [2021-11-20 23:12:42,765 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402718,402731] [2021-11-20 23:12:42,765 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402864,402877] [2021-11-20 23:12:42,766 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403007,403020] [2021-11-20 23:12:42,766 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403159,403172] [2021-11-20 23:12:42,767 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403305,403318] [2021-11-20 23:12:42,767 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403450,403463] [2021-11-20 23:12:42,768 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403604,403617] [2021-11-20 23:12:42,768 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403755,403768] [2021-11-20 23:12:42,769 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403910,403923] [2021-11-20 23:12:42,769 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404062,404075] [2021-11-20 23:12:42,770 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404217,404230] [2021-11-20 23:12:42,770 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404381,404394] [2021-11-20 23:12:42,771 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404537,404550] [2021-11-20 23:12:42,771 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404701,404714] [2021-11-20 23:12:42,772 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404843,404856] [2021-11-20 23:12:42,772 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405001,405014] [2021-11-20 23:12:42,773 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405168,405181] [2021-11-20 23:12:42,773 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405327,405340] [2021-11-20 23:12:42,774 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405486,405499] [2021-11-20 23:12:42,774 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405635,405648] [2021-11-20 23:12:42,775 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405782,405795] [2021-11-20 23:12:42,775 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405921,405934] [2021-11-20 23:12:42,776 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406084,406097] [2021-11-20 23:12:42,776 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406250,406263] [2021-11-20 23:12:42,777 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406414,406427] [2021-11-20 23:12:42,777 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406579,406592] [2021-11-20 23:12:42,778 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406744,406757] [2021-11-20 23:12:42,778 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406910,406923] [2021-11-20 23:12:42,779 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407075,407088] [2021-11-20 23:12:42,779 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407242,407255] [2021-11-20 23:12:42,779 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407402,407415] [2021-11-20 23:12:42,780 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407564,407577] [2021-11-20 23:12:42,780 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407723,407736] [2021-11-20 23:12:42,781 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407869,407882] [2021-11-20 23:12:42,781 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408012,408025] [2021-11-20 23:12:42,782 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408156,408169] [2021-11-20 23:12:42,782 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408299,408312] [2021-11-20 23:12:42,783 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408443,408456] [2021-11-20 23:12:42,784 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408584,408597] [2021-11-20 23:12:42,784 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408722,408735] [2021-11-20 23:12:42,785 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408880,408893] [2021-11-20 23:12:42,785 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409039,409052] [2021-11-20 23:12:42,785 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409195,409208] [2021-11-20 23:12:42,786 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409344,409357] [2021-11-20 23:12:42,786 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409496,409509] [2021-11-20 23:12:42,787 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409647,409660] [2021-11-20 23:12:42,787 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409796,409809] [2021-11-20 23:12:42,788 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409948,409961] [2021-11-20 23:12:42,788 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410096,410109] [2021-11-20 23:12:42,789 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410249,410262] [2021-11-20 23:12:42,818 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410400,410413] [2021-11-20 23:12:42,819 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410550,410563] [2021-11-20 23:12:42,819 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410697,410710] [2021-11-20 23:12:42,820 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410848,410861] [2021-11-20 23:12:42,820 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410999,411012] [2021-11-20 23:12:42,820 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411147,411160] [2021-11-20 23:12:42,821 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411313,411326] [2021-11-20 23:12:42,821 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411482,411495] [2021-11-20 23:12:42,822 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411649,411662] [2021-11-20 23:12:42,822 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411817,411830] [2021-11-20 23:12:42,822 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411967,411980] [2021-11-20 23:12:42,823 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412114,412127] [2021-11-20 23:12:42,823 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412275,412288] [2021-11-20 23:12:42,824 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412445,412458] [2021-11-20 23:12:42,824 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412607,412620] [2021-11-20 23:12:42,849 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:12:42,901 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:12:43,278 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399219,399232] [2021-11-20 23:12:43,279 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399364,399377] [2021-11-20 23:12:43,279 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399510,399523] [2021-11-20 23:12:43,280 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399675,399688] [2021-11-20 23:12:43,280 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399833,399846] [2021-11-20 23:12:43,281 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399991,400004] [2021-11-20 23:12:43,281 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400149,400162] [2021-11-20 23:12:43,281 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400309,400322] [2021-11-20 23:12:43,282 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400468,400481] [2021-11-20 23:12:43,282 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400607,400620] [2021-11-20 23:12:43,283 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400749,400762] [2021-11-20 23:12:43,283 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400898,400911] [2021-11-20 23:12:43,283 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401037,401050] [2021-11-20 23:12:43,284 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401192,401205] [2021-11-20 23:12:43,284 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401352,401365] [2021-11-20 23:12:43,285 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401503,401516] [2021-11-20 23:12:43,285 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401654,401667] [2021-11-20 23:12:43,285 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401806,401819] [2021-11-20 23:12:43,286 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401955,401968] [2021-11-20 23:12:43,286 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402103,402116] [2021-11-20 23:12:43,287 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402260,402273] [2021-11-20 23:12:43,287 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402409,402422] [2021-11-20 23:12:43,287 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402565,402578] [2021-11-20 23:12:43,288 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402718,402731] [2021-11-20 23:12:43,288 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402864,402877] [2021-11-20 23:12:43,289 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403007,403020] [2021-11-20 23:12:43,289 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403159,403172] [2021-11-20 23:12:43,289 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403305,403318] [2021-11-20 23:12:43,290 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403450,403463] [2021-11-20 23:12:43,290 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403604,403617] [2021-11-20 23:12:43,291 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403755,403768] [2021-11-20 23:12:43,291 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403910,403923] [2021-11-20 23:12:43,291 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404062,404075] [2021-11-20 23:12:43,292 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404217,404230] [2021-11-20 23:12:43,292 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404381,404394] [2021-11-20 23:12:43,293 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404537,404550] [2021-11-20 23:12:43,293 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404701,404714] [2021-11-20 23:12:43,293 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404843,404856] [2021-11-20 23:12:43,294 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405001,405014] [2021-11-20 23:12:43,294 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405168,405181] [2021-11-20 23:12:43,295 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405327,405340] [2021-11-20 23:12:43,295 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405486,405499] [2021-11-20 23:12:43,295 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405635,405648] [2021-11-20 23:12:43,296 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405782,405795] [2021-11-20 23:12:43,296 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405921,405934] [2021-11-20 23:12:43,297 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406084,406097] [2021-11-20 23:12:43,297 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406250,406263] [2021-11-20 23:12:43,297 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406414,406427] [2021-11-20 23:12:43,298 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406579,406592] [2021-11-20 23:12:43,298 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406744,406757] [2021-11-20 23:12:43,299 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406910,406923] [2021-11-20 23:12:43,299 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407075,407088] [2021-11-20 23:12:43,299 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407242,407255] [2021-11-20 23:12:43,300 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407402,407415] [2021-11-20 23:12:43,300 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407564,407577] [2021-11-20 23:12:43,301 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407723,407736] [2021-11-20 23:12:43,301 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407869,407882] [2021-11-20 23:12:43,301 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408012,408025] [2021-11-20 23:12:43,302 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408156,408169] [2021-11-20 23:12:43,302 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408299,408312] [2021-11-20 23:12:43,303 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408443,408456] [2021-11-20 23:12:43,304 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408584,408597] [2021-11-20 23:12:43,304 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408722,408735] [2021-11-20 23:12:43,342 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408880,408893] [2021-11-20 23:12:43,343 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409039,409052] [2021-11-20 23:12:43,343 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409195,409208] [2021-11-20 23:12:43,343 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409344,409357] [2021-11-20 23:12:43,344 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409496,409509] [2021-11-20 23:12:43,344 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409647,409660] [2021-11-20 23:12:43,345 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409796,409809] [2021-11-20 23:12:43,345 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409948,409961] [2021-11-20 23:12:43,345 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410096,410109] [2021-11-20 23:12:43,346 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410249,410262] [2021-11-20 23:12:43,346 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410400,410413] [2021-11-20 23:12:43,346 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410550,410563] [2021-11-20 23:12:43,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410697,410710] [2021-11-20 23:12:43,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410848,410861] [2021-11-20 23:12:43,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410999,411012] [2021-11-20 23:12:43,348 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411147,411160] [2021-11-20 23:12:43,348 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411313,411326] [2021-11-20 23:12:43,349 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411482,411495] [2021-11-20 23:12:43,349 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411649,411662] [2021-11-20 23:12:43,349 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411817,411830] [2021-11-20 23:12:43,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411967,411980] [2021-11-20 23:12:43,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412114,412127] [2021-11-20 23:12:43,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412275,412288] [2021-11-20 23:12:43,351 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412445,412458] [2021-11-20 23:12:43,351 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412607,412620] [2021-11-20 23:12:43,358 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:12:43,691 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:12:43,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:43 WrapperNode [2021-11-20 23:12:43,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:12:43,693 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:12:43,693 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:12:43,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:12:43,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:43" (1/1) ... [2021-11-20 23:12:43,832 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:43" (1/1) ... [2021-11-20 23:12:44,028 INFO L137 Inliner]: procedures = 636, calls = 2220, calls flagged for inlining = 287, calls inlined = 204, statements flattened = 5086 [2021-11-20 23:12:44,029 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:12:44,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:12:44,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:12:44,030 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:12:44,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:43" (1/1) ... [2021-11-20 23:12:44,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:43" (1/1) ... [2021-11-20 23:12:44,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:43" (1/1) ... [2021-11-20 23:12:44,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:43" (1/1) ... [2021-11-20 23:12:44,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:43" (1/1) ... [2021-11-20 23:12:44,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:43" (1/1) ... [2021-11-20 23:12:44,258 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:43" (1/1) ... [2021-11-20 23:12:44,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:12:44,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:12:44,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:12:44,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:12:44,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:43" (1/1) ... [2021-11-20 23:12:44,297 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:12:44,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:12:44,323 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:12:44,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:12:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-20 23:12:44,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-20 23:12:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-20 23:12:44,371 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-20 23:12:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-20 23:12:44,371 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-20 23:12:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_set_filter_mode [2021-11-20 23:12:44,371 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_set_filter_mode [2021-11-20 23:12:44,372 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-20 23:12:44,372 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-20 23:12:44,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 23:12:44,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 23:12:44,374 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_resume [2021-11-20 23:12:44,374 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_resume [2021-11-20 23:12:44,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-20 23:12:44,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-20 23:12:44,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-20 23:12:44,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-20 23:12:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_write_1bit [2021-11-20 23:12:44,375 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_write_1bit [2021-11-20 23:12:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-20 23:12:44,375 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-20 23:12:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-20 23:12:44,375 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-20 23:12:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-20 23:12:44,375 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-20 23:12:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-11-20 23:12:44,376 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-11-20 23:12:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-20 23:12:44,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-20 23:12:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-20 23:12:44,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-20 23:12:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-20 23:12:44,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-20 23:12:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-20 23:12:44,377 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-20 23:12:44,377 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_reuse_skb [2021-11-20 23:12:44,377 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_reuse_skb [2021-11-20 23:12:44,377 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2021-11-20 23:12:44,377 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2021-11-20 23:12:44,377 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-20 23:12:44,377 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-20 23:12:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-20 23:12:44,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-20 23:12:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-20 23:12:44,378 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-20 23:12:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-20 23:12:44,378 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-20 23:12:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-20 23:12:44,379 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-20 23:12:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 23:12:44,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 23:12:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-20 23:12:44,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-20 23:12:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:12:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-20 23:12:44,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-20 23:12:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure poll_dmfe [2021-11-20 23:12:44,380 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_dmfe [2021-11-20 23:12:44,380 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-20 23:12:44,380 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-20 23:12:44,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 23:12:44,380 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-20 23:12:44,380 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-20 23:12:44,380 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2021-11-20 23:12:44,381 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2021-11-20 23:12:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 23:12:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-20 23:12:44,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-20 23:12:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-20 23:12:44,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-20 23:12:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_remove_one [2021-11-20 23:12:44,383 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_remove_one [2021-11-20 23:12:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-20 23:12:44,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-20 23:12:44,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:12:44,388 INFO L130 BoogieDeclarations]: Found specification of procedure dm9132_id_table [2021-11-20 23:12:44,388 INFO L138 BoogieDeclarations]: Found implementation of procedure dm9132_id_table [2021-11-20 23:12:44,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-20 23:12:44,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-20 23:12:44,389 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-20 23:12:44,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-20 23:12:44,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-20 23:12:44,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-20 23:12:44,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-20 23:12:44,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-20 23:12:44,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-20 23:12:44,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-20 23:12:44,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-20 23:12:44,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-20 23:12:44,391 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_interrupt [2021-11-20 23:12:44,391 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_interrupt [2021-11-20 23:12:44,391 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-20 23:12:44,391 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-20 23:12:44,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-20 23:12:44,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-20 23:12:44,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-20 23:12:44,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-20 23:12:44,391 INFO L130 BoogieDeclarations]: Found specification of procedure cal_CRC [2021-11-20 23:12:44,392 INFO L138 BoogieDeclarations]: Found implementation of procedure cal_CRC [2021-11-20 23:12:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:12:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:12:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2021-11-20 23:12:44,392 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2021-11-20 23:12:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 23:12:44,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 23:12:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-20 23:12:44,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-20 23:12:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:12:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-11-20 23:12:44,393 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-11-20 23:12:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 23:12:44,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 23:12:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-11-20 23:12:44,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-11-20 23:12:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_free_rxbuffer [2021-11-20 23:12:44,393 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_free_rxbuffer [2021-11-20 23:12:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 23:12:44,394 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 23:12:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-20 23:12:44,394 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-20 23:12:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-20 23:12:44,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-20 23:12:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-20 23:12:44,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-20 23:12:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_stop [2021-11-20 23:12:44,395 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_stop [2021-11-20 23:12:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:12:44,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:12:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 23:12:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 23:12:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 23:12:44,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 23:12:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-20 23:12:44,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-20 23:12:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-20 23:12:44,396 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-20 23:12:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_open [2021-11-20 23:12:44,396 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_open [2021-11-20 23:12:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_dmfe_board_info [2021-11-20 23:12:44,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_dmfe_board_info [2021-11-20 23:12:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-20 23:12:44,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-20 23:12:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_130 [2021-11-20 23:12:44,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_130 [2021-11-20 23:12:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-20 23:12:44,397 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-20 23:12:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-20 23:12:44,398 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-20 23:12:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-20 23:12:44,398 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-20 23:12:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2021-11-20 23:12:44,398 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2021-11-20 23:12:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-20 23:12:44,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-20 23:12:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-20 23:12:44,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-20 23:12:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:12:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-20 23:12:44,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-20 23:12:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:12:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-20 23:12:44,399 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-20 23:12:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-20 23:12:44,400 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-20 23:12:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_read_1bit [2021-11-20 23:12:44,400 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_read_1bit [2021-11-20 23:12:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 23:12:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_init_dm910x [2021-11-20 23:12:44,400 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_init_dm910x [2021-11-20 23:12:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-20 23:12:44,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-20 23:12:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-20 23:12:44,401 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-20 23:12:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_write [2021-11-20 23:12:44,401 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_write [2021-11-20 23:12:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-20 23:12:44,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-20 23:12:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2021-11-20 23:12:44,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2021-11-20 23:12:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-11-20 23:12:44,402 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-11-20 23:12:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-20 23:12:44,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-20 23:12:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-20 23:12:44,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-20 23:12:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-20 23:12:44,402 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-20 23:12:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-20 23:12:44,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-20 23:12:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-20 23:12:44,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-20 23:12:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2021-11-20 23:12:44,407 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2021-11-20 23:12:44,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:12:44,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-20 23:12:44,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-20 23:12:44,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 23:12:44,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 23:12:44,408 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2021-11-20 23:12:44,408 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2021-11-20 23:12:44,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-20 23:12:44,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-20 23:12:44,410 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2021-11-20 23:12:44,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2021-11-20 23:12:44,410 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_read [2021-11-20 23:12:44,410 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_read [2021-11-20 23:12:44,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-20 23:12:44,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-20 23:12:44,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-20 23:12:44,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-20 23:12:44,411 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-20 23:12:44,411 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-20 23:12:44,411 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-20 23:12:44,411 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-20 23:12:44,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:12:45,417 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:12:45,420 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:12:45,792 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 23:12:48,544 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:12:49,892 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:12:49,893 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 23:12:49,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:12:49 BoogieIcfgContainer [2021-11-20 23:12:49,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:12:49,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:12:49,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:12:49,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:12:49,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:12:38" (1/3) ... [2021-11-20 23:12:49,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8ed2b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:12:49, skipping insertion in model container [2021-11-20 23:12:49,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:43" (2/3) ... [2021-11-20 23:12:49,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8ed2b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:12:49, skipping insertion in model container [2021-11-20 23:12:49,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:12:49" (3/3) ... [2021-11-20 23:12:49,907 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i [2021-11-20 23:12:49,912 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:12:49,912 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2021-11-20 23:12:49,983 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:12:49,996 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 [2021-11-20 23:12:49,996 INFO L340 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2021-11-20 23:12:50,071 INFO L276 IsEmpty]: Start isEmpty. Operand has 1247 states, 701 states have (on average 1.303851640513552) internal successors, (914), 757 states have internal predecessors, (914), 419 states have call successors, (419), 100 states have call predecessors, (419), 99 states have return successors, (415), 406 states have call predecessors, (415), 415 states have call successors, (415) [2021-11-20 23:12:50,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-20 23:12:50,080 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:12:50,080 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:12:50,081 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:12:50,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:12:50,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1973902439, now seen corresponding path program 1 times [2021-11-20 23:12:50,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:12:50,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498126861] [2021-11-20 23:12:50,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:12:50,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:12:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:12:50,797 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:12:50,797 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:12:50,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498126861] [2021-11-20 23:12:50,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498126861] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:12:50,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:12:50,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:12:50,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317994388] [2021-11-20 23:12:50,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:12:50,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:12:50,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:12:50,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:12:50,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:12:50,866 INFO L87 Difference]: Start difference. First operand has 1247 states, 701 states have (on average 1.303851640513552) internal successors, (914), 757 states have internal predecessors, (914), 419 states have call successors, (419), 100 states have call predecessors, (419), 99 states have return successors, (415), 406 states have call predecessors, (415), 415 states have call successors, (415) Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (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) [2021-11-20 23:12:53,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:12:53,677 INFO L93 Difference]: Finished difference Result 2461 states and 3526 transitions. [2021-11-20 23:12:53,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:12:53,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (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 50 [2021-11-20 23:12:53,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:12:53,706 INFO L225 Difference]: With dead ends: 2461 [2021-11-20 23:12:53,706 INFO L226 Difference]: Without dead ends: 1232 [2021-11-20 23:12:53,726 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 [2021-11-20 23:12:53,729 INFO L933 BasicCegarLoop]: 1466 mSDtfsCounter, 1694 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1696 SdHoareTripleChecker+Valid, 2932 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:12:53,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1696 Valid, 2932 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-20 23:12:53,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2021-11-20 23:12:53,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1232. [2021-11-20 23:12:53,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 693 states have (on average 1.2611832611832612) internal successors, (874), 746 states have internal predecessors, (874), 415 states have call successors, (415), 99 states have call predecessors, (415), 98 states have return successors, (413), 404 states have call predecessors, (413), 413 states have call successors, (413) [2021-11-20 23:12:53,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 1702 transitions. [2021-11-20 23:12:53,903 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 1702 transitions. Word has length 50 [2021-11-20 23:12:53,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:12:53,904 INFO L470 AbstractCegarLoop]: Abstraction has 1232 states and 1702 transitions. [2021-11-20 23:12:53,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (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) [2021-11-20 23:12:53,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 1702 transitions. [2021-11-20 23:12:53,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-20 23:12:53,908 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:12:53,908 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:12:53,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:12:53,909 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:12:53,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:12:53,910 INFO L85 PathProgramCache]: Analyzing trace with hash -628491455, now seen corresponding path program 1 times [2021-11-20 23:12:53,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:12:53,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167039653] [2021-11-20 23:12:53,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:12:53,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:12:53,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:12:54,095 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:12:54,095 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:12:54,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167039653] [2021-11-20 23:12:54,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167039653] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:12:54,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:12:54,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:12:54,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751025974] [2021-11-20 23:12:54,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:12:54,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:12:54,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:12:54,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:12:54,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:12:54,098 INFO L87 Difference]: Start difference. First operand 1232 states and 1702 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (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) [2021-11-20 23:12:56,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:12:56,710 INFO L93 Difference]: Finished difference Result 1232 states and 1702 transitions. [2021-11-20 23:12:56,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:12:56,710 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (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 55 [2021-11-20 23:12:56,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:12:56,723 INFO L225 Difference]: With dead ends: 1232 [2021-11-20 23:12:56,723 INFO L226 Difference]: Without dead ends: 1230 [2021-11-20 23:12:56,725 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 [2021-11-20 23:12:56,726 INFO L933 BasicCegarLoop]: 1450 mSDtfsCounter, 1676 mSDsluCounter, 1697 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1678 SdHoareTripleChecker+Valid, 2900 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:12:56,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1678 Valid, 2900 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-20 23:12:56,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2021-11-20 23:12:56,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 1230. [2021-11-20 23:12:56,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 692 states have (on average 1.260115606936416) internal successors, (872), 744 states have internal predecessors, (872), 415 states have call successors, (415), 99 states have call predecessors, (415), 98 states have return successors, (413), 404 states have call predecessors, (413), 413 states have call successors, (413) [2021-11-20 23:12:56,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1700 transitions. [2021-11-20 23:12:56,821 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1700 transitions. Word has length 55 [2021-11-20 23:12:56,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:12:56,822 INFO L470 AbstractCegarLoop]: Abstraction has 1230 states and 1700 transitions. [2021-11-20 23:12:56,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (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) [2021-11-20 23:12:56,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1700 transitions. [2021-11-20 23:12:56,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-20 23:12:56,826 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:12:56,826 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:12:56,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 23:12:56,826 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:12:56,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:12:56,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1437420630, now seen corresponding path program 1 times [2021-11-20 23:12:56,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:12:56,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482434046] [2021-11-20 23:12:56,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:12:56,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:12:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:12:57,028 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:12:57,028 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:12:57,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482434046] [2021-11-20 23:12:57,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482434046] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:12:57,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:12:57,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:12:57,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17981612] [2021-11-20 23:12:57,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:12:57,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:12:57,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:12:57,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:12:57,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:12:57,031 INFO L87 Difference]: Start difference. First operand 1230 states and 1700 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (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) [2021-11-20 23:12:59,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:12:59,964 INFO L93 Difference]: Finished difference Result 1230 states and 1700 transitions. [2021-11-20 23:12:59,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:12:59,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (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 60 [2021-11-20 23:12:59,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:12:59,979 INFO L225 Difference]: With dead ends: 1230 [2021-11-20 23:12:59,979 INFO L226 Difference]: Without dead ends: 1228 [2021-11-20 23:12:59,980 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 [2021-11-20 23:12:59,983 INFO L933 BasicCegarLoop]: 1448 mSDtfsCounter, 1673 mSDsluCounter, 1695 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1675 SdHoareTripleChecker+Valid, 2896 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:12:59,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1675 Valid, 2896 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-20 23:12:59,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1228 states. [2021-11-20 23:13:00,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1228 to 1228. [2021-11-20 23:13:00,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1228 states, 691 states have (on average 1.2590448625180897) internal successors, (870), 742 states have internal predecessors, (870), 415 states have call successors, (415), 99 states have call predecessors, (415), 98 states have return successors, (413), 404 states have call predecessors, (413), 413 states have call successors, (413) [2021-11-20 23:13:00,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1698 transitions. [2021-11-20 23:13:00,094 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1698 transitions. Word has length 60 [2021-11-20 23:13:00,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:00,095 INFO L470 AbstractCegarLoop]: Abstraction has 1228 states and 1698 transitions. [2021-11-20 23:13:00,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (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) [2021-11-20 23:13:00,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1698 transitions. [2021-11-20 23:13:00,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-20 23:13:00,103 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:00,103 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:00,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 23:13:00,104 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:13:00,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:00,105 INFO L85 PathProgramCache]: Analyzing trace with hash -22931502, now seen corresponding path program 1 times [2021-11-20 23:13:00,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:00,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490614445] [2021-11-20 23:13:00,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:00,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:00,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:00,369 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:13:00,369 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:00,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490614445] [2021-11-20 23:13:00,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490614445] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:00,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:00,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:00,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158215040] [2021-11-20 23:13:00,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:00,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:00,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:00,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:00,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:00,372 INFO L87 Difference]: Start difference. First operand 1228 states and 1698 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (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) [2021-11-20 23:13:02,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:02,756 INFO L93 Difference]: Finished difference Result 1228 states and 1698 transitions. [2021-11-20 23:13:02,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:02,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (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 65 [2021-11-20 23:13:02,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:02,768 INFO L225 Difference]: With dead ends: 1228 [2021-11-20 23:13:02,768 INFO L226 Difference]: Without dead ends: 1226 [2021-11-20 23:13:02,769 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 [2021-11-20 23:13:02,770 INFO L933 BasicCegarLoop]: 1446 mSDtfsCounter, 1670 mSDsluCounter, 1693 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1672 SdHoareTripleChecker+Valid, 2892 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:02,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1672 Valid, 2892 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-20 23:13:02,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2021-11-20 23:13:02,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 1226. [2021-11-20 23:13:02,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1226 states, 690 states have (on average 1.2579710144927536) internal successors, (868), 740 states have internal predecessors, (868), 415 states have call successors, (415), 99 states have call predecessors, (415), 98 states have return successors, (413), 404 states have call predecessors, (413), 413 states have call successors, (413) [2021-11-20 23:13:02,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 1696 transitions. [2021-11-20 23:13:02,854 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 1696 transitions. Word has length 65 [2021-11-20 23:13:02,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:02,855 INFO L470 AbstractCegarLoop]: Abstraction has 1226 states and 1696 transitions. [2021-11-20 23:13:02,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (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) [2021-11-20 23:13:02,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 1696 transitions. [2021-11-20 23:13:02,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-20 23:13:02,857 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:02,858 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:02,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 23:13:02,858 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:13:02,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:02,859 INFO L85 PathProgramCache]: Analyzing trace with hash 736235529, now seen corresponding path program 1 times [2021-11-20 23:13:02,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:02,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962966721] [2021-11-20 23:13:02,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:02,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:02,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:03,016 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:13:03,017 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:03,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962966721] [2021-11-20 23:13:03,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962966721] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:03,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:03,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:03,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884024871] [2021-11-20 23:13:03,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:03,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:03,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:03,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:03,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:03,019 INFO L87 Difference]: Start difference. First operand 1226 states and 1696 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (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) [2021-11-20 23:13:06,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:06,020 INFO L93 Difference]: Finished difference Result 1226 states and 1696 transitions. [2021-11-20 23:13:06,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:06,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (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 70 [2021-11-20 23:13:06,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:06,034 INFO L225 Difference]: With dead ends: 1226 [2021-11-20 23:13:06,035 INFO L226 Difference]: Without dead ends: 1224 [2021-11-20 23:13:06,036 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 [2021-11-20 23:13:06,037 INFO L933 BasicCegarLoop]: 1444 mSDtfsCounter, 1667 mSDsluCounter, 1691 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1669 SdHoareTripleChecker+Valid, 2888 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:06,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1669 Valid, 2888 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-20 23:13:06,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2021-11-20 23:13:06,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1224. [2021-11-20 23:13:06,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1224 states, 689 states have (on average 1.2568940493468794) internal successors, (866), 738 states have internal predecessors, (866), 415 states have call successors, (415), 99 states have call predecessors, (415), 98 states have return successors, (413), 404 states have call predecessors, (413), 413 states have call successors, (413) [2021-11-20 23:13:06,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1694 transitions. [2021-11-20 23:13:06,126 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1694 transitions. Word has length 70 [2021-11-20 23:13:06,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:06,127 INFO L470 AbstractCegarLoop]: Abstraction has 1224 states and 1694 transitions. [2021-11-20 23:13:06,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (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) [2021-11-20 23:13:06,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1694 transitions. [2021-11-20 23:13:06,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-20 23:13:06,131 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:06,131 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:06,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 23:13:06,133 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:13:06,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:06,134 INFO L85 PathProgramCache]: Analyzing trace with hash -813099282, now seen corresponding path program 1 times [2021-11-20 23:13:06,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:06,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144207883] [2021-11-20 23:13:06,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:06,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:06,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:06,309 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:13:06,309 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:06,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144207883] [2021-11-20 23:13:06,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144207883] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:06,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:06,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:06,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809942072] [2021-11-20 23:13:06,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:06,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:06,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:06,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:06,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:06,312 INFO L87 Difference]: Start difference. First operand 1224 states and 1694 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (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) [2021-11-20 23:13:08,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:08,052 INFO L93 Difference]: Finished difference Result 1224 states and 1694 transitions. [2021-11-20 23:13:08,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:08,052 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 75 [2021-11-20 23:13:08,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:08,063 INFO L225 Difference]: With dead ends: 1224 [2021-11-20 23:13:08,063 INFO L226 Difference]: Without dead ends: 1222 [2021-11-20 23:13:08,064 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 [2021-11-20 23:13:08,065 INFO L933 BasicCegarLoop]: 1442 mSDtfsCounter, 1664 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1666 SdHoareTripleChecker+Valid, 2884 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:08,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1666 Valid, 2884 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-20 23:13:08,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2021-11-20 23:13:08,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1222. [2021-11-20 23:13:08,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 688 states have (on average 1.255813953488372) internal successors, (864), 736 states have internal predecessors, (864), 415 states have call successors, (415), 99 states have call predecessors, (415), 98 states have return successors, (413), 404 states have call predecessors, (413), 413 states have call successors, (413) [2021-11-20 23:13:08,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1692 transitions. [2021-11-20 23:13:08,176 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1692 transitions. Word has length 75 [2021-11-20 23:13:08,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:08,177 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 1692 transitions. [2021-11-20 23:13:08,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (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) [2021-11-20 23:13:08,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1692 transitions. [2021-11-20 23:13:08,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-20 23:13:08,179 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:08,179 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:08,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 23:13:08,179 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:13:08,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:08,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1291923083, now seen corresponding path program 1 times [2021-11-20 23:13:08,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:08,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392745115] [2021-11-20 23:13:08,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:08,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:08,320 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:13:08,320 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:08,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392745115] [2021-11-20 23:13:08,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392745115] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:08,321 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:08,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:08,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246128360] [2021-11-20 23:13:08,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:08,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:08,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:08,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:08,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:08,323 INFO L87 Difference]: Start difference. First operand 1222 states and 1692 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (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) [2021-11-20 23:13:10,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:10,463 INFO L93 Difference]: Finished difference Result 1222 states and 1692 transitions. [2021-11-20 23:13:10,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:10,464 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 80 [2021-11-20 23:13:10,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:10,474 INFO L225 Difference]: With dead ends: 1222 [2021-11-20 23:13:10,474 INFO L226 Difference]: Without dead ends: 1220 [2021-11-20 23:13:10,475 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 [2021-11-20 23:13:10,476 INFO L933 BasicCegarLoop]: 1440 mSDtfsCounter, 1661 mSDsluCounter, 1687 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1663 SdHoareTripleChecker+Valid, 2880 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:10,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1663 Valid, 2880 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-20 23:13:10,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2021-11-20 23:13:10,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 1220. [2021-11-20 23:13:10,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 687 states have (on average 1.254730713245997) internal successors, (862), 734 states have internal predecessors, (862), 415 states have call successors, (415), 99 states have call predecessors, (415), 98 states have return successors, (413), 404 states have call predecessors, (413), 413 states have call successors, (413) [2021-11-20 23:13:10,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1690 transitions. [2021-11-20 23:13:10,562 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1690 transitions. Word has length 80 [2021-11-20 23:13:10,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:10,563 INFO L470 AbstractCegarLoop]: Abstraction has 1220 states and 1690 transitions. [2021-11-20 23:13:10,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (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) [2021-11-20 23:13:10,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1690 transitions. [2021-11-20 23:13:10,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-20 23:13:10,564 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:10,565 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:10,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 23:13:10,565 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:13:10,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:10,566 INFO L85 PathProgramCache]: Analyzing trace with hash 924331453, now seen corresponding path program 1 times [2021-11-20 23:13:10,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:10,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245704194] [2021-11-20 23:13:10,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:10,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:10,724 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-11-20 23:13:10,725 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:10,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245704194] [2021-11-20 23:13:10,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245704194] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:10,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:10,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:13:10,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575627147] [2021-11-20 23:13:10,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:10,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:13:10,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:10,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:13:10,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:13:10,727 INFO L87 Difference]: Start difference. First operand 1220 states and 1690 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 23:13:15,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:15,211 INFO L93 Difference]: Finished difference Result 1549 states and 2134 transitions. [2021-11-20 23:13:15,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:13:15,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 99 [2021-11-20 23:13:15,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:15,224 INFO L225 Difference]: With dead ends: 1549 [2021-11-20 23:13:15,224 INFO L226 Difference]: Without dead ends: 1547 [2021-11-20 23:13:15,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 23:13:15,226 INFO L933 BasicCegarLoop]: 1788 mSDtfsCounter, 1268 mSDsluCounter, 5032 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1269 SdHoareTripleChecker+Valid, 6074 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:15,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1269 Valid, 6074 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1066 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2021-11-20 23:13:15,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2021-11-20 23:13:15,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1543. [2021-11-20 23:13:15,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 869 states have (on average 1.2520138089758344) internal successors, (1088), 919 states have internal predecessors, (1088), 522 states have call successors, (522), 134 states have call predecessors, (522), 133 states have return successors, (520), 510 states have call predecessors, (520), 520 states have call successors, (520) [2021-11-20 23:13:15,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2130 transitions. [2021-11-20 23:13:15,342 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2130 transitions. Word has length 99 [2021-11-20 23:13:15,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:15,342 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2130 transitions. [2021-11-20 23:13:15,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 23:13:15,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2130 transitions. [2021-11-20 23:13:15,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-20 23:13:15,344 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:15,345 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:15,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 23:13:15,345 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:13:15,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:15,346 INFO L85 PathProgramCache]: Analyzing trace with hash 343029975, now seen corresponding path program 1 times [2021-11-20 23:13:15,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:15,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498904719] [2021-11-20 23:13:15,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:15,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:15,492 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:13:15,493 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:15,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498904719] [2021-11-20 23:13:15,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498904719] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:15,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:15,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:15,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679719971] [2021-11-20 23:13:15,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:15,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:15,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:15,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:15,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:15,495 INFO L87 Difference]: Start difference. First operand 1543 states and 2130 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (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) [2021-11-20 23:13:18,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:18,102 INFO L93 Difference]: Finished difference Result 1543 states and 2130 transitions. [2021-11-20 23:13:18,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:18,103 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 85 [2021-11-20 23:13:18,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:18,115 INFO L225 Difference]: With dead ends: 1543 [2021-11-20 23:13:18,115 INFO L226 Difference]: Without dead ends: 1541 [2021-11-20 23:13:18,117 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 [2021-11-20 23:13:18,119 INFO L933 BasicCegarLoop]: 1436 mSDtfsCounter, 1660 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1662 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:18,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1662 Valid, 2868 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-20 23:13:18,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1541 states. [2021-11-20 23:13:18,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1541 to 1541. [2021-11-20 23:13:18,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1541 states, 868 states have (on average 1.2511520737327189) internal successors, (1086), 917 states have internal predecessors, (1086), 522 states have call successors, (522), 134 states have call predecessors, (522), 133 states have return successors, (520), 510 states have call predecessors, (520), 520 states have call successors, (520) [2021-11-20 23:13:18,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 2128 transitions. [2021-11-20 23:13:18,249 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 2128 transitions. Word has length 85 [2021-11-20 23:13:18,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:18,249 INFO L470 AbstractCegarLoop]: Abstraction has 1541 states and 2128 transitions. [2021-11-20 23:13:18,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (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) [2021-11-20 23:13:18,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 2128 transitions. [2021-11-20 23:13:18,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-20 23:13:18,253 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:18,253 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:18,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 23:13:18,254 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:13:18,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:18,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1060535494, now seen corresponding path program 1 times [2021-11-20 23:13:18,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:18,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165543589] [2021-11-20 23:13:18,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:18,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:18,445 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:13:18,446 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:18,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165543589] [2021-11-20 23:13:18,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165543589] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:18,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:18,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:18,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950741805] [2021-11-20 23:13:18,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:18,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:18,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:18,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:18,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:18,448 INFO L87 Difference]: Start difference. First operand 1541 states and 2128 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (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) [2021-11-20 23:13:21,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:21,019 INFO L93 Difference]: Finished difference Result 1541 states and 2128 transitions. [2021-11-20 23:13:21,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:21,020 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (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 87 [2021-11-20 23:13:21,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:21,032 INFO L225 Difference]: With dead ends: 1541 [2021-11-20 23:13:21,032 INFO L226 Difference]: Without dead ends: 1539 [2021-11-20 23:13:21,033 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 [2021-11-20 23:13:21,034 INFO L933 BasicCegarLoop]: 1434 mSDtfsCounter, 1652 mSDsluCounter, 1681 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1654 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:21,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1654 Valid, 2868 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-20 23:13:21,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1539 states. [2021-11-20 23:13:21,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1539 to 1539. [2021-11-20 23:13:21,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1539 states, 867 states have (on average 1.2502883506343714) internal successors, (1084), 915 states have internal predecessors, (1084), 522 states have call successors, (522), 134 states have call predecessors, (522), 133 states have return successors, (520), 510 states have call predecessors, (520), 520 states have call successors, (520) [2021-11-20 23:13:21,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 2126 transitions. [2021-11-20 23:13:21,182 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 2126 transitions. Word has length 87 [2021-11-20 23:13:21,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:21,183 INFO L470 AbstractCegarLoop]: Abstraction has 1539 states and 2126 transitions. [2021-11-20 23:13:21,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (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) [2021-11-20 23:13:21,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 2126 transitions. [2021-11-20 23:13:21,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-20 23:13:21,186 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:21,186 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 23:13:21,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 23:13:21,187 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:13:21,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:21,188 INFO L85 PathProgramCache]: Analyzing trace with hash 295546575, now seen corresponding path program 1 times [2021-11-20 23:13:21,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:21,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215919698] [2021-11-20 23:13:21,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:21,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:21,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:21,339 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-11-20 23:13:21,339 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:21,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215919698] [2021-11-20 23:13:21,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215919698] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:21,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:21,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:13:21,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883782754] [2021-11-20 23:13:21,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:21,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:13:21,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:21,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:13:21,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:13:21,342 INFO L87 Difference]: Start difference. First operand 1539 states and 2126 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-20 23:13:24,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:24,437 INFO L93 Difference]: Finished difference Result 3735 states and 5114 transitions. [2021-11-20 23:13:24,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:13:24,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 104 [2021-11-20 23:13:24,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:24,456 INFO L225 Difference]: With dead ends: 3735 [2021-11-20 23:13:24,456 INFO L226 Difference]: Without dead ends: 2221 [2021-11-20 23:13:24,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:13:24,466 INFO L933 BasicCegarLoop]: 1808 mSDtfsCounter, 1520 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:24,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1520 Valid, 2576 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-20 23:13:24,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2221 states. [2021-11-20 23:13:24,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2221 to 2213. [2021-11-20 23:13:24,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2213 states, 1253 states have (on average 1.2458100558659218) internal successors, (1561), 1313 states have internal predecessors, (1561), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-20 23:13:24,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2213 states to 2213 states and 3021 transitions. [2021-11-20 23:13:24,638 INFO L78 Accepts]: Start accepts. Automaton has 2213 states and 3021 transitions. Word has length 104 [2021-11-20 23:13:24,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:24,641 INFO L470 AbstractCegarLoop]: Abstraction has 2213 states and 3021 transitions. [2021-11-20 23:13:24,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-20 23:13:24,641 INFO L276 IsEmpty]: Start isEmpty. Operand 2213 states and 3021 transitions. [2021-11-20 23:13:24,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-20 23:13:24,646 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:24,646 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:24,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 23:13:24,646 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:13:24,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:24,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1319236532, now seen corresponding path program 1 times [2021-11-20 23:13:24,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:24,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686284411] [2021-11-20 23:13:24,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:24,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:24,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:24,775 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:13:24,775 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:24,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686284411] [2021-11-20 23:13:24,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686284411] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:24,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:24,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:24,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325344418] [2021-11-20 23:13:24,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:24,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:24,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:24,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:24,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:24,777 INFO L87 Difference]: Start difference. First operand 2213 states and 3021 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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) [2021-11-20 23:13:27,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:27,659 INFO L93 Difference]: Finished difference Result 2213 states and 3021 transitions. [2021-11-20 23:13:27,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:27,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 92 [2021-11-20 23:13:27,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:27,676 INFO L225 Difference]: With dead ends: 2213 [2021-11-20 23:13:27,676 INFO L226 Difference]: Without dead ends: 2211 [2021-11-20 23:13:27,678 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 [2021-11-20 23:13:27,679 INFO L933 BasicCegarLoop]: 1432 mSDtfsCounter, 1651 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1653 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:27,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1653 Valid, 2864 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-20 23:13:27,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2211 states. [2021-11-20 23:13:27,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2211 to 2211. [2021-11-20 23:13:27,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2211 states, 1252 states have (on average 1.2452076677316295) internal successors, (1559), 1311 states have internal predecessors, (1559), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-20 23:13:27,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2211 states to 2211 states and 3019 transitions. [2021-11-20 23:13:27,862 INFO L78 Accepts]: Start accepts. Automaton has 2211 states and 3019 transitions. Word has length 92 [2021-11-20 23:13:27,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:27,863 INFO L470 AbstractCegarLoop]: Abstraction has 2211 states and 3019 transitions. [2021-11-20 23:13:27,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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) [2021-11-20 23:13:27,863 INFO L276 IsEmpty]: Start isEmpty. Operand 2211 states and 3019 transitions. [2021-11-20 23:13:27,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-20 23:13:27,865 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:27,865 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:27,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 23:13:27,866 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:13:27,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:27,866 INFO L85 PathProgramCache]: Analyzing trace with hash 925531118, now seen corresponding path program 1 times [2021-11-20 23:13:27,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:27,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001497257] [2021-11-20 23:13:27,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:27,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:27,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:28,041 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-11-20 23:13:28,041 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:28,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001497257] [2021-11-20 23:13:28,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001497257] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:13:28,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686052751] [2021-11-20 23:13:28,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:28,042 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:13:28,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:13:28,044 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:13:28,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 23:13:28,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:28,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 2126 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 23:13:28,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:13:29,162 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-20 23:13:29,163 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:13:29,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686052751] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:29,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:13:29,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-11-20 23:13:29,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159756842] [2021-11-20 23:13:29,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:29,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:13:29,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:29,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:13:29,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-20 23:13:29,165 INFO L87 Difference]: Start difference. First operand 2211 states and 3019 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-20 23:13:30,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:30,691 INFO L93 Difference]: Finished difference Result 4393 states and 5994 transitions. [2021-11-20 23:13:30,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:13:30,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 109 [2021-11-20 23:13:30,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:30,709 INFO L225 Difference]: With dead ends: 4393 [2021-11-20 23:13:30,709 INFO L226 Difference]: Without dead ends: 2207 [2021-11-20 23:13:30,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-20 23:13:30,723 INFO L933 BasicCegarLoop]: 1428 mSDtfsCounter, 1651 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1651 SdHoareTripleChecker+Valid, 1428 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:30,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1651 Valid, 1428 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-20 23:13:30,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2207 states. [2021-11-20 23:13:30,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2207 to 2207. [2021-11-20 23:13:30,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2207 states, 1249 states have (on average 1.244195356285028) internal successors, (1554), 1307 states have internal predecessors, (1554), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-20 23:13:30,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2207 states to 2207 states and 3014 transitions. [2021-11-20 23:13:30,907 INFO L78 Accepts]: Start accepts. Automaton has 2207 states and 3014 transitions. Word has length 109 [2021-11-20 23:13:30,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:30,908 INFO L470 AbstractCegarLoop]: Abstraction has 2207 states and 3014 transitions. [2021-11-20 23:13:30,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-20 23:13:30,908 INFO L276 IsEmpty]: Start isEmpty. Operand 2207 states and 3014 transitions. [2021-11-20 23:13:30,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-20 23:13:30,910 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:30,911 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:30,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 23:13:31,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-20 23:13:31,127 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:13:31,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:31,127 INFO L85 PathProgramCache]: Analyzing trace with hash -295756061, now seen corresponding path program 1 times [2021-11-20 23:13:31,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:31,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885610446] [2021-11-20 23:13:31,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:31,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:31,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:31,294 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:13:31,294 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:31,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885610446] [2021-11-20 23:13:31,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885610446] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:31,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:31,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:31,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871419018] [2021-11-20 23:13:31,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:31,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:31,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:31,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:31,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:31,298 INFO L87 Difference]: Start difference. First operand 2207 states and 3014 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (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) [2021-11-20 23:13:33,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:33,149 INFO L93 Difference]: Finished difference Result 2207 states and 3014 transitions. [2021-11-20 23:13:33,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:33,156 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (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 97 [2021-11-20 23:13:33,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:33,172 INFO L225 Difference]: With dead ends: 2207 [2021-11-20 23:13:33,172 INFO L226 Difference]: Without dead ends: 2205 [2021-11-20 23:13:33,174 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 [2021-11-20 23:13:33,175 INFO L933 BasicCegarLoop]: 1425 mSDtfsCounter, 1643 mSDsluCounter, 1672 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1645 SdHoareTripleChecker+Valid, 2850 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:33,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1645 Valid, 2850 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 23:13:33,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2205 states. [2021-11-20 23:13:33,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2205 to 2205. [2021-11-20 23:13:33,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2205 states, 1248 states have (on average 1.2435897435897436) internal successors, (1552), 1305 states have internal predecessors, (1552), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-20 23:13:33,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2205 states to 2205 states and 3012 transitions. [2021-11-20 23:13:33,359 INFO L78 Accepts]: Start accepts. Automaton has 2205 states and 3012 transitions. Word has length 97 [2021-11-20 23:13:33,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:33,360 INFO L470 AbstractCegarLoop]: Abstraction has 2205 states and 3012 transitions. [2021-11-20 23:13:33,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (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) [2021-11-20 23:13:33,361 INFO L276 IsEmpty]: Start isEmpty. Operand 2205 states and 3012 transitions. [2021-11-20 23:13:33,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-20 23:13:33,363 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:33,363 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:33,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 23:13:33,363 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:13:33,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:33,364 INFO L85 PathProgramCache]: Analyzing trace with hash 54418375, now seen corresponding path program 1 times [2021-11-20 23:13:33,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:33,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368772893] [2021-11-20 23:13:33,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:33,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:33,494 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:13:33,494 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:33,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368772893] [2021-11-20 23:13:33,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368772893] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:33,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:33,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:33,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990545881] [2021-11-20 23:13:33,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:33,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:33,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:33,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:33,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:33,499 INFO L87 Difference]: Start difference. First operand 2205 states and 3012 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (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) [2021-11-20 23:13:35,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:35,205 INFO L93 Difference]: Finished difference Result 2205 states and 3012 transitions. [2021-11-20 23:13:35,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:35,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (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 102 [2021-11-20 23:13:35,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:35,221 INFO L225 Difference]: With dead ends: 2205 [2021-11-20 23:13:35,221 INFO L226 Difference]: Without dead ends: 2203 [2021-11-20 23:13:35,223 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 [2021-11-20 23:13:35,224 INFO L933 BasicCegarLoop]: 1423 mSDtfsCounter, 1640 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1642 SdHoareTripleChecker+Valid, 2846 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:35,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1642 Valid, 2846 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-20 23:13:35,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2203 states. [2021-11-20 23:13:35,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2203 to 2203. [2021-11-20 23:13:35,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2203 states, 1247 states have (on average 1.2429831595829992) internal successors, (1550), 1303 states have internal predecessors, (1550), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-20 23:13:35,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2203 states to 2203 states and 3010 transitions. [2021-11-20 23:13:35,507 INFO L78 Accepts]: Start accepts. Automaton has 2203 states and 3010 transitions. Word has length 102 [2021-11-20 23:13:35,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:35,508 INFO L470 AbstractCegarLoop]: Abstraction has 2203 states and 3010 transitions. [2021-11-20 23:13:35,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (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) [2021-11-20 23:13:35,508 INFO L276 IsEmpty]: Start isEmpty. Operand 2203 states and 3010 transitions. [2021-11-20 23:13:35,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-20 23:13:35,511 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:35,511 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:35,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-20 23:13:35,512 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:13:35,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:35,512 INFO L85 PathProgramCache]: Analyzing trace with hash 424383201, now seen corresponding path program 1 times [2021-11-20 23:13:35,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:35,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689705388] [2021-11-20 23:13:35,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:35,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:35,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:35,684 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:13:35,684 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:35,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689705388] [2021-11-20 23:13:35,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689705388] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:35,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:35,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:35,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732489752] [2021-11-20 23:13:35,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:35,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:35,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:35,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:35,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:35,687 INFO L87 Difference]: Start difference. First operand 2203 states and 3010 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 23:13:37,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:37,891 INFO L93 Difference]: Finished difference Result 2203 states and 3010 transitions. [2021-11-20 23:13:37,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:37,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 107 [2021-11-20 23:13:37,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:37,906 INFO L225 Difference]: With dead ends: 2203 [2021-11-20 23:13:37,907 INFO L226 Difference]: Without dead ends: 2201 [2021-11-20 23:13:37,908 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 [2021-11-20 23:13:37,909 INFO L933 BasicCegarLoop]: 1421 mSDtfsCounter, 1637 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1639 SdHoareTripleChecker+Valid, 2842 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:37,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1639 Valid, 2842 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-20 23:13:37,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2201 states. [2021-11-20 23:13:38,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2201 to 2201. [2021-11-20 23:13:38,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2201 states, 1246 states have (on average 1.2423756019261638) internal successors, (1548), 1301 states have internal predecessors, (1548), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-20 23:13:38,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2201 states to 2201 states and 3008 transitions. [2021-11-20 23:13:38,098 INFO L78 Accepts]: Start accepts. Automaton has 2201 states and 3008 transitions. Word has length 107 [2021-11-20 23:13:38,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:38,098 INFO L470 AbstractCegarLoop]: Abstraction has 2201 states and 3008 transitions. [2021-11-20 23:13:38,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 23:13:38,099 INFO L276 IsEmpty]: Start isEmpty. Operand 2201 states and 3008 transitions. [2021-11-20 23:13:38,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-20 23:13:38,101 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:38,101 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:38,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-20 23:13:38,102 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:13:38,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:38,102 INFO L85 PathProgramCache]: Analyzing trace with hash -130321650, now seen corresponding path program 1 times [2021-11-20 23:13:38,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:38,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2260190] [2021-11-20 23:13:38,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:38,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:38,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:38,247 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:13:38,247 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:38,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2260190] [2021-11-20 23:13:38,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2260190] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:38,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:38,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:38,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039809945] [2021-11-20 23:13:38,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:38,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:38,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:38,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:38,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:38,251 INFO L87 Difference]: Start difference. First operand 2201 states and 3008 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-20 23:13:40,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:40,271 INFO L93 Difference]: Finished difference Result 2201 states and 3008 transitions. [2021-11-20 23:13:40,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:40,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 112 [2021-11-20 23:13:40,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:40,284 INFO L225 Difference]: With dead ends: 2201 [2021-11-20 23:13:40,284 INFO L226 Difference]: Without dead ends: 2199 [2021-11-20 23:13:40,285 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 [2021-11-20 23:13:40,286 INFO L933 BasicCegarLoop]: 1419 mSDtfsCounter, 1634 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1636 SdHoareTripleChecker+Valid, 2838 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:40,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1636 Valid, 2838 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-20 23:13:40,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2199 states. [2021-11-20 23:13:40,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2199 to 2199. [2021-11-20 23:13:40,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2199 states, 1245 states have (on average 1.2417670682730924) internal successors, (1546), 1299 states have internal predecessors, (1546), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-20 23:13:40,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2199 states to 2199 states and 3006 transitions. [2021-11-20 23:13:40,479 INFO L78 Accepts]: Start accepts. Automaton has 2199 states and 3006 transitions. Word has length 112 [2021-11-20 23:13:40,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:40,479 INFO L470 AbstractCegarLoop]: Abstraction has 2199 states and 3006 transitions. [2021-11-20 23:13:40,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-20 23:13:40,480 INFO L276 IsEmpty]: Start isEmpty. Operand 2199 states and 3006 transitions. [2021-11-20 23:13:40,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-20 23:13:40,482 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:40,482 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:40,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-20 23:13:40,483 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:13:40,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:40,484 INFO L85 PathProgramCache]: Analyzing trace with hash -385337015, now seen corresponding path program 1 times [2021-11-20 23:13:40,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:40,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565306927] [2021-11-20 23:13:40,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:40,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:40,619 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:13:40,620 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:40,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565306927] [2021-11-20 23:13:40,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565306927] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:40,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:40,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:40,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513230279] [2021-11-20 23:13:40,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:40,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:40,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:40,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:40,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:40,623 INFO L87 Difference]: Start difference. First operand 2199 states and 3006 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 23:13:42,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:42,550 INFO L93 Difference]: Finished difference Result 2199 states and 3006 transitions. [2021-11-20 23:13:42,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:42,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 117 [2021-11-20 23:13:42,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:42,560 INFO L225 Difference]: With dead ends: 2199 [2021-11-20 23:13:42,560 INFO L226 Difference]: Without dead ends: 2197 [2021-11-20 23:13:42,562 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 [2021-11-20 23:13:42,563 INFO L933 BasicCegarLoop]: 1417 mSDtfsCounter, 1631 mSDsluCounter, 1664 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1633 SdHoareTripleChecker+Valid, 2834 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:42,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1633 Valid, 2834 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-20 23:13:42,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2197 states. [2021-11-20 23:13:42,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2197 to 2197. [2021-11-20 23:13:42,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2197 states, 1244 states have (on average 1.2411575562700965) internal successors, (1544), 1297 states have internal predecessors, (1544), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-20 23:13:42,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2197 states to 2197 states and 3004 transitions. [2021-11-20 23:13:42,773 INFO L78 Accepts]: Start accepts. Automaton has 2197 states and 3004 transitions. Word has length 117 [2021-11-20 23:13:42,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:42,774 INFO L470 AbstractCegarLoop]: Abstraction has 2197 states and 3004 transitions. [2021-11-20 23:13:42,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 23:13:42,775 INFO L276 IsEmpty]: Start isEmpty. Operand 2197 states and 3004 transitions. [2021-11-20 23:13:42,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-20 23:13:42,777 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:42,777 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:42,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-20 23:13:42,778 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:13:42,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:42,779 INFO L85 PathProgramCache]: Analyzing trace with hash 312363056, now seen corresponding path program 1 times [2021-11-20 23:13:42,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:42,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599767544] [2021-11-20 23:13:42,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:42,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:42,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:42,936 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:13:42,936 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:42,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599767544] [2021-11-20 23:13:42,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599767544] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:42,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:42,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:13:42,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801820328] [2021-11-20 23:13:42,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:42,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:13:42,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:42,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:13:42,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:13:42,940 INFO L87 Difference]: Start difference. First operand 2197 states and 3004 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-20 23:13:44,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:44,857 INFO L93 Difference]: Finished difference Result 4385 states and 5993 transitions. [2021-11-20 23:13:44,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:13:44,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 122 [2021-11-20 23:13:44,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:44,868 INFO L225 Difference]: With dead ends: 4385 [2021-11-20 23:13:44,868 INFO L226 Difference]: Without dead ends: 2196 [2021-11-20 23:13:44,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:13:44,880 INFO L933 BasicCegarLoop]: 1409 mSDtfsCounter, 1658 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1658 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:44,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1658 Valid, 1409 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 23:13:44,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2196 states. [2021-11-20 23:13:45,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2196 to 2196. [2021-11-20 23:13:45,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2196 states, 1243 states have (on average 1.237329042638777) internal successors, (1538), 1296 states have internal predecessors, (1538), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-20 23:13:45,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 2998 transitions. [2021-11-20 23:13:45,089 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 2998 transitions. Word has length 122 [2021-11-20 23:13:45,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:45,089 INFO L470 AbstractCegarLoop]: Abstraction has 2196 states and 2998 transitions. [2021-11-20 23:13:45,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-20 23:13:45,090 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 2998 transitions. [2021-11-20 23:13:45,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-20 23:13:45,093 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:45,093 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:45,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-20 23:13:45,094 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:13:45,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:45,094 INFO L85 PathProgramCache]: Analyzing trace with hash 593725876, now seen corresponding path program 1 times [2021-11-20 23:13:45,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:45,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285987998] [2021-11-20 23:13:45,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:45,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:45,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:45,248 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:13:45,249 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:45,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285987998] [2021-11-20 23:13:45,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285987998] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:45,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:45,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:45,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168788280] [2021-11-20 23:13:45,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:45,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:45,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:45,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:45,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:45,251 INFO L87 Difference]: Start difference. First operand 2196 states and 2998 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-20 23:13:48,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:48,110 INFO L93 Difference]: Finished difference Result 2196 states and 2998 transitions. [2021-11-20 23:13:48,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:48,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 125 [2021-11-20 23:13:48,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:48,120 INFO L225 Difference]: With dead ends: 2196 [2021-11-20 23:13:48,120 INFO L226 Difference]: Without dead ends: 2194 [2021-11-20 23:13:48,121 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 [2021-11-20 23:13:48,122 INFO L933 BasicCegarLoop]: 1409 mSDtfsCounter, 1619 mSDsluCounter, 1656 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1621 SdHoareTripleChecker+Valid, 2818 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:48,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1621 Valid, 2818 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-20 23:13:48,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2021-11-20 23:13:48,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 2194. [2021-11-20 23:13:48,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2194 states, 1242 states have (on average 1.2367149758454106) internal successors, (1536), 1294 states have internal predecessors, (1536), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-20 23:13:48,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2194 states to 2194 states and 2996 transitions. [2021-11-20 23:13:48,297 INFO L78 Accepts]: Start accepts. Automaton has 2194 states and 2996 transitions. Word has length 125 [2021-11-20 23:13:48,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:48,298 INFO L470 AbstractCegarLoop]: Abstraction has 2194 states and 2996 transitions. [2021-11-20 23:13:48,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-20 23:13:48,299 INFO L276 IsEmpty]: Start isEmpty. Operand 2194 states and 2996 transitions. [2021-11-20 23:13:48,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-20 23:13:48,302 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:48,302 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:48,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-20 23:13:48,302 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:13:48,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:48,303 INFO L85 PathProgramCache]: Analyzing trace with hash -488393796, now seen corresponding path program 1 times [2021-11-20 23:13:48,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:48,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601883092] [2021-11-20 23:13:48,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:48,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:48,429 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:13:48,429 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:48,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601883092] [2021-11-20 23:13:48,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601883092] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:48,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:48,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:48,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785607498] [2021-11-20 23:13:48,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:48,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:48,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:48,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:48,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:48,432 INFO L87 Difference]: Start difference. First operand 2194 states and 2996 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-20 23:13:51,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:51,383 INFO L93 Difference]: Finished difference Result 2194 states and 2996 transitions. [2021-11-20 23:13:51,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:51,383 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 130 [2021-11-20 23:13:51,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:51,393 INFO L225 Difference]: With dead ends: 2194 [2021-11-20 23:13:51,393 INFO L226 Difference]: Without dead ends: 2192 [2021-11-20 23:13:51,395 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 [2021-11-20 23:13:51,396 INFO L933 BasicCegarLoop]: 1407 mSDtfsCounter, 1616 mSDsluCounter, 1654 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 2814 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:51,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1618 Valid, 2814 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-20 23:13:51,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2192 states. [2021-11-20 23:13:51,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2192 to 2192. [2021-11-20 23:13:51,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2192 states, 1241 states have (on average 1.2360999194198228) internal successors, (1534), 1292 states have internal predecessors, (1534), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-20 23:13:51,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2192 states to 2192 states and 2994 transitions. [2021-11-20 23:13:51,637 INFO L78 Accepts]: Start accepts. Automaton has 2192 states and 2994 transitions. Word has length 130 [2021-11-20 23:13:51,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:51,638 INFO L470 AbstractCegarLoop]: Abstraction has 2192 states and 2994 transitions. [2021-11-20 23:13:51,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-20 23:13:51,638 INFO L276 IsEmpty]: Start isEmpty. Operand 2192 states and 2994 transitions. [2021-11-20 23:13:51,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-20 23:13:51,641 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:51,642 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:51,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-20 23:13:51,642 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:13:51,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:51,644 INFO L85 PathProgramCache]: Analyzing trace with hash -212137595, now seen corresponding path program 1 times [2021-11-20 23:13:51,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:51,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348815326] [2021-11-20 23:13:51,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:51,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:51,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:51,785 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:13:51,786 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:51,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348815326] [2021-11-20 23:13:51,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348815326] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:51,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:51,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:51,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826809831] [2021-11-20 23:13:51,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:51,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:51,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:51,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:51,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:51,789 INFO L87 Difference]: Start difference. First operand 2192 states and 2994 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-20 23:13:54,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:54,084 INFO L93 Difference]: Finished difference Result 2192 states and 2994 transitions. [2021-11-20 23:13:54,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:54,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 135 [2021-11-20 23:13:54,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:54,095 INFO L225 Difference]: With dead ends: 2192 [2021-11-20 23:13:54,095 INFO L226 Difference]: Without dead ends: 2190 [2021-11-20 23:13:54,098 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 [2021-11-20 23:13:54,098 INFO L933 BasicCegarLoop]: 1405 mSDtfsCounter, 1613 mSDsluCounter, 1652 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1615 SdHoareTripleChecker+Valid, 2810 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:54,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1615 Valid, 2810 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-20 23:13:54,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2190 states. [2021-11-20 23:13:54,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2190 to 2190. [2021-11-20 23:13:54,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2190 states, 1240 states have (on average 1.235483870967742) internal successors, (1532), 1290 states have internal predecessors, (1532), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-20 23:13:54,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2190 states to 2190 states and 2992 transitions. [2021-11-20 23:13:54,326 INFO L78 Accepts]: Start accepts. Automaton has 2190 states and 2992 transitions. Word has length 135 [2021-11-20 23:13:54,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:54,326 INFO L470 AbstractCegarLoop]: Abstraction has 2190 states and 2992 transitions. [2021-11-20 23:13:54,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-20 23:13:54,327 INFO L276 IsEmpty]: Start isEmpty. Operand 2190 states and 2992 transitions. [2021-11-20 23:13:54,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-20 23:13:54,331 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:54,331 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:54,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-20 23:13:54,331 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:13:54,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:54,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1851088039, now seen corresponding path program 1 times [2021-11-20 23:13:54,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:54,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271595259] [2021-11-20 23:13:54,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:54,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:54,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:54,468 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:13:54,469 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:54,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271595259] [2021-11-20 23:13:54,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271595259] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:54,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:54,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:54,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517752913] [2021-11-20 23:13:54,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:54,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:54,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:54,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:54,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:54,471 INFO L87 Difference]: Start difference. First operand 2190 states and 2992 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-20 23:13:56,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:56,726 INFO L93 Difference]: Finished difference Result 2190 states and 2992 transitions. [2021-11-20 23:13:56,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:56,727 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 140 [2021-11-20 23:13:56,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:56,735 INFO L225 Difference]: With dead ends: 2190 [2021-11-20 23:13:56,735 INFO L226 Difference]: Without dead ends: 2188 [2021-11-20 23:13:56,737 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 [2021-11-20 23:13:56,738 INFO L933 BasicCegarLoop]: 1403 mSDtfsCounter, 1610 mSDsluCounter, 1650 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1612 SdHoareTripleChecker+Valid, 2806 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:56,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1612 Valid, 2806 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-20 23:13:56,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2188 states. [2021-11-20 23:13:56,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2188 to 2188. [2021-11-20 23:13:56,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2188 states, 1239 states have (on average 1.234866828087167) internal successors, (1530), 1288 states have internal predecessors, (1530), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-20 23:13:56,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2188 states to 2188 states and 2990 transitions. [2021-11-20 23:13:56,974 INFO L78 Accepts]: Start accepts. Automaton has 2188 states and 2990 transitions. Word has length 140 [2021-11-20 23:13:56,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:56,975 INFO L470 AbstractCegarLoop]: Abstraction has 2188 states and 2990 transitions. [2021-11-20 23:13:56,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-20 23:13:56,975 INFO L276 IsEmpty]: Start isEmpty. Operand 2188 states and 2990 transitions. [2021-11-20 23:13:56,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-20 23:13:56,979 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:56,979 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:56,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-20 23:13:56,980 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:13:56,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:56,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1434230756, now seen corresponding path program 1 times [2021-11-20 23:13:56,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:56,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952221199] [2021-11-20 23:13:56,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:56,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:57,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:57,182 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-11-20 23:13:57,182 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:57,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952221199] [2021-11-20 23:13:57,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952221199] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:57,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:57,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:13:57,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545702805] [2021-11-20 23:13:57,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:57,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:13:57,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:57,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:13:57,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:13:57,185 INFO L87 Difference]: Start difference. First operand 2188 states and 2990 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, (32), 3 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-20 23:14:01,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:01,323 INFO L93 Difference]: Finished difference Result 2192 states and 2992 transitions. [2021-11-20 23:14:01,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:14:01,323 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, (32), 3 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 167 [2021-11-20 23:14:01,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:01,331 INFO L225 Difference]: With dead ends: 2192 [2021-11-20 23:14:01,332 INFO L226 Difference]: Without dead ends: 2190 [2021-11-20 23:14:01,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 23:14:01,333 INFO L933 BasicCegarLoop]: 1607 mSDtfsCounter, 819 mSDsluCounter, 5010 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 5881 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:01,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [820 Valid, 5881 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1011 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-11-20 23:14:01,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2190 states. [2021-11-20 23:14:01,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2190 to 2186. [2021-11-20 23:14:01,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2186 states, 1238 states have (on average 1.2334410339256865) internal successors, (1527), 1286 states have internal predecessors, (1527), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-20 23:14:01,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2186 states to 2186 states and 2987 transitions. [2021-11-20 23:14:01,568 INFO L78 Accepts]: Start accepts. Automaton has 2186 states and 2987 transitions. Word has length 167 [2021-11-20 23:14:01,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:01,569 INFO L470 AbstractCegarLoop]: Abstraction has 2186 states and 2987 transitions. [2021-11-20 23:14:01,569 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, (32), 3 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-20 23:14:01,569 INFO L276 IsEmpty]: Start isEmpty. Operand 2186 states and 2987 transitions. [2021-11-20 23:14:01,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-20 23:14:01,573 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:01,573 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:14:01,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-20 23:14:01,573 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:14:01,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:01,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1230234141, now seen corresponding path program 1 times [2021-11-20 23:14:01,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:01,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88528351] [2021-11-20 23:14:01,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:01,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:01,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:01,717 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:14:01,717 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:01,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88528351] [2021-11-20 23:14:01,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88528351] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:01,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:14:01,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:14:01,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904024085] [2021-11-20 23:14:01,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:01,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:14:01,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:01,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:14:01,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:14:01,720 INFO L87 Difference]: Start difference. First operand 2186 states and 2987 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-20 23:14:03,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:03,995 INFO L93 Difference]: Finished difference Result 2186 states and 2987 transitions. [2021-11-20 23:14:03,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:14:03,995 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 145 [2021-11-20 23:14:03,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:04,003 INFO L225 Difference]: With dead ends: 2186 [2021-11-20 23:14:04,004 INFO L226 Difference]: Without dead ends: 2184 [2021-11-20 23:14:04,006 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 [2021-11-20 23:14:04,006 INFO L933 BasicCegarLoop]: 1399 mSDtfsCounter, 1605 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1607 SdHoareTripleChecker+Valid, 2798 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:04,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1607 Valid, 2798 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-20 23:14:04,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2184 states. [2021-11-20 23:14:04,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2184 to 2184. [2021-11-20 23:14:04,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2184 states, 1237 states have (on average 1.232821341956346) internal successors, (1525), 1284 states have internal predecessors, (1525), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-20 23:14:04,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2184 states to 2184 states and 2985 transitions. [2021-11-20 23:14:04,286 INFO L78 Accepts]: Start accepts. Automaton has 2184 states and 2985 transitions. Word has length 145 [2021-11-20 23:14:04,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:04,286 INFO L470 AbstractCegarLoop]: Abstraction has 2184 states and 2985 transitions. [2021-11-20 23:14:04,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-20 23:14:04,287 INFO L276 IsEmpty]: Start isEmpty. Operand 2184 states and 2985 transitions. [2021-11-20 23:14:04,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-20 23:14:04,290 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:04,291 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:14:04,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-20 23:14:04,291 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:14:04,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:04,292 INFO L85 PathProgramCache]: Analyzing trace with hash 759424358, now seen corresponding path program 1 times [2021-11-20 23:14:04,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:04,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496829456] [2021-11-20 23:14:04,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:04,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:04,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:04,421 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:14:04,421 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:04,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496829456] [2021-11-20 23:14:04,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496829456] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:04,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:14:04,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:14:04,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509706402] [2021-11-20 23:14:04,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:04,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:14:04,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:04,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:14:04,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:14:04,424 INFO L87 Difference]: Start difference. First operand 2184 states and 2985 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-20 23:14:06,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:06,008 INFO L93 Difference]: Finished difference Result 2184 states and 2985 transitions. [2021-11-20 23:14:06,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:14:06,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 150 [2021-11-20 23:14:06,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:06,016 INFO L225 Difference]: With dead ends: 2184 [2021-11-20 23:14:06,016 INFO L226 Difference]: Without dead ends: 1947 [2021-11-20 23:14:06,019 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 [2021-11-20 23:14:06,020 INFO L933 BasicCegarLoop]: 1398 mSDtfsCounter, 1602 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1602 SdHoareTripleChecker+Valid, 2796 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:06,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1602 Valid, 2796 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-20 23:14:06,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1947 states. [2021-11-20 23:14:06,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1947 to 1947. [2021-11-20 23:14:06,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1947 states, 1106 states have (on average 1.2396021699819169) internal successors, (1371), 1148 states have internal predecessors, (1371), 650 states have call successors, (650), 189 states have call predecessors, (650), 188 states have return successors, (648), 637 states have call predecessors, (648), 648 states have call successors, (648) [2021-11-20 23:14:06,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1947 states to 1947 states and 2669 transitions. [2021-11-20 23:14:06,268 INFO L78 Accepts]: Start accepts. Automaton has 1947 states and 2669 transitions. Word has length 150 [2021-11-20 23:14:06,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:06,268 INFO L470 AbstractCegarLoop]: Abstraction has 1947 states and 2669 transitions. [2021-11-20 23:14:06,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-20 23:14:06,269 INFO L276 IsEmpty]: Start isEmpty. Operand 1947 states and 2669 transitions. [2021-11-20 23:14:06,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-20 23:14:06,273 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:06,273 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:14:06,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-20 23:14:06,273 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:14:06,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:06,274 INFO L85 PathProgramCache]: Analyzing trace with hash -409612093, now seen corresponding path program 1 times [2021-11-20 23:14:06,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:06,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531220855] [2021-11-20 23:14:06,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:06,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:06,536 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2021-11-20 23:14:06,536 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:06,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531220855] [2021-11-20 23:14:06,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531220855] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:06,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:14:06,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:14:06,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230084713] [2021-11-20 23:14:06,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:06,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:14:06,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:06,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:14:06,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:14:06,539 INFO L87 Difference]: Start difference. First operand 1947 states and 2669 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-20 23:14:08,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:08,925 INFO L93 Difference]: Finished difference Result 3897 states and 5352 transitions. [2021-11-20 23:14:08,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:14:08,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 182 [2021-11-20 23:14:08,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:08,935 INFO L225 Difference]: With dead ends: 3897 [2021-11-20 23:14:08,935 INFO L226 Difference]: Without dead ends: 1974 [2021-11-20 23:14:08,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:14:08,946 INFO L933 BasicCegarLoop]: 1163 mSDtfsCounter, 10 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 2308 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:08,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 2308 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-20 23:14:08,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2021-11-20 23:14:09,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1949. [2021-11-20 23:14:09,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1949 states, 1108 states have (on average 1.2391696750902528) internal successors, (1373), 1150 states have internal predecessors, (1373), 650 states have call successors, (650), 189 states have call predecessors, (650), 188 states have return successors, (648), 637 states have call predecessors, (648), 648 states have call successors, (648) [2021-11-20 23:14:09,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1949 states to 1949 states and 2671 transitions. [2021-11-20 23:14:09,175 INFO L78 Accepts]: Start accepts. Automaton has 1949 states and 2671 transitions. Word has length 182 [2021-11-20 23:14:09,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:09,176 INFO L470 AbstractCegarLoop]: Abstraction has 1949 states and 2671 transitions. [2021-11-20 23:14:09,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-20 23:14:09,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1949 states and 2671 transitions. [2021-11-20 23:14:09,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-20 23:14:09,181 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:09,181 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:14:09,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-20 23:14:09,182 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:14:09,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:09,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1410923377, now seen corresponding path program 1 times [2021-11-20 23:14:09,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:09,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441098490] [2021-11-20 23:14:09,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:09,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:09,481 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2021-11-20 23:14:09,481 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:09,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441098490] [2021-11-20 23:14:09,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441098490] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:14:09,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121529183] [2021-11-20 23:14:09,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:09,481 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:14:09,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:14:09,484 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:14:09,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 23:14:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:10,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 2600 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-20 23:14:10,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:14:10,923 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2021-11-20 23:14:10,923 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:14:10,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121529183] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:10,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:14:10,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 17 [2021-11-20 23:14:10,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855380435] [2021-11-20 23:14:10,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:10,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-20 23:14:10,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:10,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-20 23:14:10,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2021-11-20 23:14:10,925 INFO L87 Difference]: Start difference. First operand 1949 states and 2671 transitions. Second operand has 11 states, 8 states have (on average 11.25) internal successors, (90), 10 states have internal predecessors, (90), 6 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (33), 6 states have call predecessors, (33), 6 states have call successors, (33) [2021-11-20 23:14:20,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:20,722 INFO L93 Difference]: Finished difference Result 4148 states and 5734 transitions. [2021-11-20 23:14:20,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 23:14:20,728 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 11.25) internal successors, (90), 10 states have internal predecessors, (90), 6 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (33), 6 states have call predecessors, (33), 6 states have call successors, (33) Word has length 207 [2021-11-20 23:14:20,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:20,737 INFO L225 Difference]: With dead ends: 4148 [2021-11-20 23:14:20,737 INFO L226 Difference]: Without dead ends: 2222 [2021-11-20 23:14:20,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2021-11-20 23:14:20,747 INFO L933 BasicCegarLoop]: 1439 mSDtfsCounter, 559 mSDsluCounter, 14326 mSDsCounter, 0 mSdLazyCounter, 2838 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 13633 SdHoareTripleChecker+Invalid, 3189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 2838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:20,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [561 Valid, 13633 Invalid, 3189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 2838 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2021-11-20 23:14:20,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2021-11-20 23:14:21,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 1961. [2021-11-20 23:14:21,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1961 states, 1116 states have (on average 1.2374551971326164) internal successors, (1381), 1158 states have internal predecessors, (1381), 654 states have call successors, (654), 189 states have call predecessors, (654), 188 states have return successors, (652), 641 states have call predecessors, (652), 652 states have call successors, (652) [2021-11-20 23:14:21,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 2687 transitions. [2021-11-20 23:14:21,045 INFO L78 Accepts]: Start accepts. Automaton has 1961 states and 2687 transitions. Word has length 207 [2021-11-20 23:14:21,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:21,046 INFO L470 AbstractCegarLoop]: Abstraction has 1961 states and 2687 transitions. [2021-11-20 23:14:21,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 11.25) internal successors, (90), 10 states have internal predecessors, (90), 6 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (33), 6 states have call predecessors, (33), 6 states have call successors, (33) [2021-11-20 23:14:21,046 INFO L276 IsEmpty]: Start isEmpty. Operand 1961 states and 2687 transitions. [2021-11-20 23:14:21,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-11-20 23:14:21,050 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:21,050 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:14:21,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 23:14:21,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-11-20 23:14:21,264 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:14:21,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:21,264 INFO L85 PathProgramCache]: Analyzing trace with hash 481086060, now seen corresponding path program 1 times [2021-11-20 23:14:21,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:21,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764298377] [2021-11-20 23:14:21,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:21,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:21,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:21,538 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-11-20 23:14:21,538 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:21,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764298377] [2021-11-20 23:14:21,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764298377] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:21,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:14:21,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:14:21,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730553994] [2021-11-20 23:14:21,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:21,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:14:21,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:21,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:14:21,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:14:21,541 INFO L87 Difference]: Start difference. First operand 1961 states and 2687 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-20 23:14:25,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:25,221 INFO L93 Difference]: Finished difference Result 3980 states and 5464 transitions. [2021-11-20 23:14:25,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:14:25,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 220 [2021-11-20 23:14:25,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:25,227 INFO L225 Difference]: With dead ends: 3980 [2021-11-20 23:14:25,227 INFO L226 Difference]: Without dead ends: 2043 [2021-11-20 23:14:25,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:14:25,234 INFO L933 BasicCegarLoop]: 1241 mSDtfsCounter, 96 mSDsluCounter, 2764 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 3594 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:25,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 3594 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-11-20 23:14:25,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2043 states. [2021-11-20 23:14:25,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2043 to 1963. [2021-11-20 23:14:25,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1963 states, 1118 states have (on average 1.237030411449016) internal successors, (1383), 1160 states have internal predecessors, (1383), 654 states have call successors, (654), 189 states have call predecessors, (654), 188 states have return successors, (652), 641 states have call predecessors, (652), 652 states have call successors, (652) [2021-11-20 23:14:25,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1963 states to 1963 states and 2689 transitions. [2021-11-20 23:14:25,486 INFO L78 Accepts]: Start accepts. Automaton has 1963 states and 2689 transitions. Word has length 220 [2021-11-20 23:14:25,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:25,486 INFO L470 AbstractCegarLoop]: Abstraction has 1963 states and 2689 transitions. [2021-11-20 23:14:25,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-20 23:14:25,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1963 states and 2689 transitions. [2021-11-20 23:14:25,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-20 23:14:25,491 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:25,491 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:14:25,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-20 23:14:25,491 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:14:25,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:25,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1897377786, now seen corresponding path program 1 times [2021-11-20 23:14:25,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:25,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504460627] [2021-11-20 23:14:25,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:25,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:25,841 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2021-11-20 23:14:25,841 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:25,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504460627] [2021-11-20 23:14:25,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504460627] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:14:25,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147717209] [2021-11-20 23:14:25,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:25,842 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:14:25,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:14:25,843 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:14:25,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 23:14:26,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:26,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 2765 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-20 23:14:26,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:14:27,343 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2021-11-20 23:14:27,344 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:14:27,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147717209] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:27,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:14:27,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [8] total 18 [2021-11-20 23:14:27,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574651056] [2021-11-20 23:14:27,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:27,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:14:27,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:27,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:14:27,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2021-11-20 23:14:27,346 INFO L87 Difference]: Start difference. First operand 1963 states and 2689 transitions. Second operand has 12 states, 9 states have (on average 10.88888888888889) internal successors, (98), 11 states have internal predecessors, (98), 7 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) [2021-11-20 23:14:38,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:38,228 INFO L93 Difference]: Finished difference Result 4195 states and 5795 transitions. [2021-11-20 23:14:38,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 23:14:38,228 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 10.88888888888889) internal successors, (98), 11 states have internal predecessors, (98), 7 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) Word has length 237 [2021-11-20 23:14:38,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:38,233 INFO L225 Difference]: With dead ends: 4195 [2021-11-20 23:14:38,233 INFO L226 Difference]: Without dead ends: 2255 [2021-11-20 23:14:38,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=560, Unknown=0, NotChecked=0, Total=650 [2021-11-20 23:14:38,239 INFO L933 BasicCegarLoop]: 1459 mSDtfsCounter, 610 mSDsluCounter, 16080 mSDsCounter, 0 mSdLazyCounter, 3173 mSolverCounterSat, 397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 15152 SdHoareTripleChecker+Invalid, 3570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 397 IncrementalHoareTripleChecker+Valid, 3173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:38,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [612 Valid, 15152 Invalid, 3570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [397 Valid, 3173 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2021-11-20 23:14:38,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2255 states. [2021-11-20 23:14:38,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2255 to 1968. [2021-11-20 23:14:38,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1968 states, 1121 states have (on average 1.2363960749330956) internal successors, (1386), 1162 states have internal predecessors, (1386), 656 states have call successors, (656), 189 states have call predecessors, (656), 188 states have return successors, (654), 643 states have call predecessors, (654), 654 states have call successors, (654) [2021-11-20 23:14:38,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1968 states to 1968 states and 2696 transitions. [2021-11-20 23:14:38,496 INFO L78 Accepts]: Start accepts. Automaton has 1968 states and 2696 transitions. Word has length 237 [2021-11-20 23:14:38,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:38,496 INFO L470 AbstractCegarLoop]: Abstraction has 1968 states and 2696 transitions. [2021-11-20 23:14:38,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 10.88888888888889) internal successors, (98), 11 states have internal predecessors, (98), 7 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) [2021-11-20 23:14:38,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1968 states and 2696 transitions. [2021-11-20 23:14:38,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-11-20 23:14:38,501 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:38,501 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:14:38,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 23:14:38,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:14:38,715 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:14:38,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:38,715 INFO L85 PathProgramCache]: Analyzing trace with hash 67229436, now seen corresponding path program 1 times [2021-11-20 23:14:38,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:38,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17317292] [2021-11-20 23:14:38,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:38,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:38,987 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2021-11-20 23:14:38,988 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:38,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17317292] [2021-11-20 23:14:38,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17317292] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:14:38,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130447587] [2021-11-20 23:14:38,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:38,989 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:14:38,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:14:38,990 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:14:39,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 23:14:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:39,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 2777 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-20 23:14:39,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:14:40,400 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2021-11-20 23:14:40,400 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:14:40,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130447587] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:40,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:14:40,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [8] total 18 [2021-11-20 23:14:40,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942419432] [2021-11-20 23:14:40,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:40,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:14:40,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:40,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:14:40,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2021-11-20 23:14:40,403 INFO L87 Difference]: Start difference. First operand 1968 states and 2696 transitions. Second operand has 12 states, 9 states have (on average 11.0) internal successors, (99), 11 states have internal predecessors, (99), 7 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) [2021-11-20 23:14:50,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:50,574 INFO L93 Difference]: Finished difference Result 4543 states and 6331 transitions. [2021-11-20 23:14:50,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-20 23:14:50,575 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 11.0) internal successors, (99), 11 states have internal predecessors, (99), 7 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) Word has length 238 [2021-11-20 23:14:50,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:50,583 INFO L225 Difference]: With dead ends: 4543 [2021-11-20 23:14:50,583 INFO L226 Difference]: Without dead ends: 2598 [2021-11-20 23:14:50,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=148, Invalid=844, Unknown=0, NotChecked=0, Total=992 [2021-11-20 23:14:50,593 INFO L933 BasicCegarLoop]: 1694 mSDtfsCounter, 643 mSDsluCounter, 18140 mSDsCounter, 0 mSdLazyCounter, 3443 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 17321 SdHoareTripleChecker+Invalid, 4010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 3443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:50,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [744 Valid, 17321 Invalid, 4010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 3443 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2021-11-20 23:14:50,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2598 states. [2021-11-20 23:14:50,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2598 to 1965. [2021-11-20 23:14:50,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1965 states, 1120 states have (on average 1.238392857142857) internal successors, (1387), 1162 states have internal predecessors, (1387), 654 states have call successors, (654), 189 states have call predecessors, (654), 188 states have return successors, (652), 641 states have call predecessors, (652), 652 states have call successors, (652) [2021-11-20 23:14:50,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 2693 transitions. [2021-11-20 23:14:50,859 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 2693 transitions. Word has length 238 [2021-11-20 23:14:50,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:50,860 INFO L470 AbstractCegarLoop]: Abstraction has 1965 states and 2693 transitions. [2021-11-20 23:14:50,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 11.0) internal successors, (99), 11 states have internal predecessors, (99), 7 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) [2021-11-20 23:14:50,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 2693 transitions. [2021-11-20 23:14:50,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-11-20 23:14:50,863 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:50,864 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:14:50,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 23:14:51,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:14:51,082 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:14:51,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:51,082 INFO L85 PathProgramCache]: Analyzing trace with hash 632178550, now seen corresponding path program 1 times [2021-11-20 23:14:51,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:51,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055974278] [2021-11-20 23:14:51,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:51,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:51,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:51,330 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2021-11-20 23:14:51,330 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:51,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055974278] [2021-11-20 23:14:51,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055974278] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:51,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:14:51,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:14:51,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084361252] [2021-11-20 23:14:51,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:51,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:14:51,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:51,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:14:51,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:14:51,333 INFO L87 Difference]: Start difference. First operand 1965 states and 2693 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-20 23:14:53,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:53,028 INFO L93 Difference]: Finished difference Result 3909 states and 5357 transitions. [2021-11-20 23:14:53,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:14:53,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 242 [2021-11-20 23:14:53,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:53,036 INFO L225 Difference]: With dead ends: 3909 [2021-11-20 23:14:53,036 INFO L226 Difference]: Without dead ends: 1968 [2021-11-20 23:14:53,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:14:53,045 INFO L933 BasicCegarLoop]: 1146 mSDtfsCounter, 1 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2285 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:53,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 2285 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-20 23:14:53,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1968 states. [2021-11-20 23:14:53,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1968 to 1966. [2021-11-20 23:14:53,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1966 states, 1121 states have (on average 1.2381801962533452) internal successors, (1388), 1163 states have internal predecessors, (1388), 654 states have call successors, (654), 189 states have call predecessors, (654), 188 states have return successors, (652), 641 states have call predecessors, (652), 652 states have call successors, (652) [2021-11-20 23:14:53,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 2694 transitions. [2021-11-20 23:14:53,300 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 2694 transitions. Word has length 242 [2021-11-20 23:14:53,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:53,301 INFO L470 AbstractCegarLoop]: Abstraction has 1966 states and 2694 transitions. [2021-11-20 23:14:53,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-20 23:14:53,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 2694 transitions. [2021-11-20 23:14:53,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-11-20 23:14:53,305 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:53,305 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:14:53,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-20 23:14:53,305 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:14:53,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:53,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1203138353, now seen corresponding path program 1 times [2021-11-20 23:14:53,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:53,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601784765] [2021-11-20 23:14:53,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:53,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:53,531 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2021-11-20 23:14:53,531 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:53,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601784765] [2021-11-20 23:14:53,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601784765] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:14:53,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906762130] [2021-11-20 23:14:53,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:53,532 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:14:53,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:14:53,534 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:14:53,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 23:14:54,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:54,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 3254 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 23:14:54,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:14:55,130 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2021-11-20 23:14:55,131 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:14:55,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906762130] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:55,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:14:55,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-20 23:14:55,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932572865] [2021-11-20 23:14:55,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:55,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:14:55,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:55,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:14:55,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:14:55,133 INFO L87 Difference]: Start difference. First operand 1966 states and 2694 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-20 23:14:57,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:57,058 INFO L93 Difference]: Finished difference Result 3916 states and 5368 transitions. [2021-11-20 23:14:57,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:14:57,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 248 [2021-11-20 23:14:57,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:57,065 INFO L225 Difference]: With dead ends: 3916 [2021-11-20 23:14:57,065 INFO L226 Difference]: Without dead ends: 1974 [2021-11-20 23:14:57,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:14:57,075 INFO L933 BasicCegarLoop]: 1149 mSDtfsCounter, 2 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2288 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:57,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 2288 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 23:14:57,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2021-11-20 23:14:57,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1967. [2021-11-20 23:14:57,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1967 states, 1122 states have (on average 1.2379679144385027) internal successors, (1389), 1164 states have internal predecessors, (1389), 654 states have call successors, (654), 189 states have call predecessors, (654), 188 states have return successors, (652), 641 states have call predecessors, (652), 652 states have call successors, (652) [2021-11-20 23:14:57,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1967 states to 1967 states and 2695 transitions. [2021-11-20 23:14:57,328 INFO L78 Accepts]: Start accepts. Automaton has 1967 states and 2695 transitions. Word has length 248 [2021-11-20 23:14:57,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:57,328 INFO L470 AbstractCegarLoop]: Abstraction has 1967 states and 2695 transitions. [2021-11-20 23:14:57,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-20 23:14:57,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1967 states and 2695 transitions. [2021-11-20 23:14:57,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2021-11-20 23:14:57,333 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:57,333 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:14:57,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 23:14:57,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-11-20 23:14:57,558 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-20 23:14:57,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:57,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1896596341, now seen corresponding path program 1 times [2021-11-20 23:14:57,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:57,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766723961] [2021-11-20 23:14:57,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:57,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:57,807 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2021-11-20 23:14:57,807 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:57,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766723961] [2021-11-20 23:14:57,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766723961] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:14:57,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001436794] [2021-11-20 23:14:57,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:57,808 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:14:57,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:14:57,810 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:14:57,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9abc4d5-012a-4baf-86f3-c71c2b230509/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 23:14:58,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:58,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 3317 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 23:14:58,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:14:59,300 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 83 proven. 1 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2021-11-20 23:14:59,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:14:59,869 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2021-11-20 23:14:59,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001436794] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:14:59,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1136223646] [2021-11-20 23:14:59,913 INFO L159 IcfgInterpreter]: Started Sifa with 149 locations of interest [2021-11-20 23:14:59,914 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:14:59,920 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:14:59,926 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:14:59,926 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:15:02,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2021-11-20 23:15:04,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2021-11-20 23:15:08,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2021-11-20 23:15:11,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2021-11-20 23:15:14,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2021-11-20 23:15:18,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2021-11-20 23:15:22,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26