./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cd814322f3abc5e8c6ad20085c30ec9c1fa5f2acc4d4d525b08e1fec6d772536 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:22:32,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:22:32,686 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:22:32,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:22:32,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:22:32,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:22:32,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:22:32,753 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:22:32,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:22:32,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:22:32,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:22:32,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:22:32,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:22:32,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:22:32,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:22:32,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:22:32,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:22:32,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:22:32,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:22:32,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:22:32,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:22:32,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:22:32,777 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:22:32,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:22:32,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:22:32,782 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:22:32,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:22:32,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:22:32,784 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:22:32,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:22:32,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:22:32,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:22:32,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:22:32,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:22:32,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:22:32,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:22:32,792 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:22:32,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:22:32,793 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:22:32,794 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:22:32,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:22:32,795 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 18:22:32,822 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:22:32,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:22:32,826 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:22:32,827 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:22:32,830 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:22:32,831 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:22:32,831 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:22:32,831 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:22:32,831 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:22:32,831 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:22:32,832 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:22:32,832 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:22:32,832 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:22:32,832 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:22:32,832 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:22:32,833 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:22:32,833 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:22:32,833 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:22:32,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:22:32,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:22:32,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:22:32,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:22:32,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:22:32,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:22:32,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:22:32,835 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:22:32,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:22:32,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:22:32,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:22:32,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:22:32,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:22:32,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:22:32,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:22:32,837 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:22:32,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:22:32,837 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:22:32,838 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:22:32,838 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:22:32,838 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_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd814322f3abc5e8c6ad20085c30ec9c1fa5f2acc4d4d525b08e1fec6d772536 [2021-11-25 18:22:33,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:22:33,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:22:33,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:22:33,132 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:22:33,133 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:22:33,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i [2021-11-25 18:22:33,216 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/data/93771b69d/c6826e4e4765447c8dc7c29157886de2/FLAG25f12375a [2021-11-25 18:22:34,335 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:22:34,336 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i [2021-11-25 18:22:34,431 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/data/93771b69d/c6826e4e4765447c8dc7c29157886de2/FLAG25f12375a [2021-11-25 18:22:34,538 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/data/93771b69d/c6826e4e4765447c8dc7c29157886de2 [2021-11-25 18:22:34,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:22:34,543 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:22:34,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:22:34,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:22:34,550 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:22:34,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:22:34" (1/1) ... [2021-11-25 18:22:34,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@132bff60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:34, skipping insertion in model container [2021-11-25 18:22:34,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:22:34" (1/1) ... [2021-11-25 18:22:34,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:22:34,763 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:22:40,396 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[502597,502610] [2021-11-25 18:22:40,400 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[502742,502755] [2021-11-25 18:22:40,401 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[502888,502901] [2021-11-25 18:22:40,401 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[503053,503066] [2021-11-25 18:22:40,402 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[503211,503224] [2021-11-25 18:22:40,403 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[503369,503382] [2021-11-25 18:22:40,403 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[503527,503540] [2021-11-25 18:22:40,404 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[503687,503700] [2021-11-25 18:22:40,404 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[503846,503859] [2021-11-25 18:22:40,405 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[503985,503998] [2021-11-25 18:22:40,405 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[504127,504140] [2021-11-25 18:22:40,406 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[504276,504289] [2021-11-25 18:22:40,408 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[504415,504428] [2021-11-25 18:22:40,412 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[504570,504583] [2021-11-25 18:22:40,413 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[504730,504743] [2021-11-25 18:22:40,414 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[504881,504894] [2021-11-25 18:22:40,414 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[505032,505045] [2021-11-25 18:22:40,415 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[505184,505197] [2021-11-25 18:22:40,416 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[505333,505346] [2021-11-25 18:22:40,417 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[505481,505494] [2021-11-25 18:22:40,417 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[505638,505651] [2021-11-25 18:22:40,418 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[505787,505800] [2021-11-25 18:22:40,418 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[505943,505956] [2021-11-25 18:22:40,420 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[506096,506109] [2021-11-25 18:22:40,420 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[506242,506255] [2021-11-25 18:22:40,421 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[506385,506398] [2021-11-25 18:22:40,421 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[506537,506550] [2021-11-25 18:22:40,422 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[506683,506696] [2021-11-25 18:22:40,423 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[506828,506841] [2021-11-25 18:22:40,424 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[506982,506995] [2021-11-25 18:22:40,425 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[507133,507146] [2021-11-25 18:22:40,425 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[507288,507301] [2021-11-25 18:22:40,425 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[507440,507453] [2021-11-25 18:22:40,426 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[507595,507608] [2021-11-25 18:22:40,426 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[507759,507772] [2021-11-25 18:22:40,427 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[507915,507928] [2021-11-25 18:22:40,428 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[508079,508092] [2021-11-25 18:22:40,428 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[508221,508234] [2021-11-25 18:22:40,435 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[508379,508392] [2021-11-25 18:22:40,436 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[508546,508559] [2021-11-25 18:22:40,436 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[508705,508718] [2021-11-25 18:22:40,438 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[508864,508877] [2021-11-25 18:22:40,438 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[509013,509026] [2021-11-25 18:22:40,438 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[509160,509173] [2021-11-25 18:22:40,461 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[509299,509312] [2021-11-25 18:22:40,461 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[509462,509475] [2021-11-25 18:22:40,461 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[509628,509641] [2021-11-25 18:22:40,463 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[509792,509805] [2021-11-25 18:22:40,464 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[509957,509970] [2021-11-25 18:22:40,464 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[510122,510135] [2021-11-25 18:22:40,464 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[510288,510301] [2021-11-25 18:22:40,465 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[510453,510466] [2021-11-25 18:22:40,466 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[510620,510633] [2021-11-25 18:22:40,466 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[510780,510793] [2021-11-25 18:22:40,467 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[510942,510955] [2021-11-25 18:22:40,467 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[511101,511114] [2021-11-25 18:22:40,468 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[511247,511260] [2021-11-25 18:22:40,468 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[511390,511403] [2021-11-25 18:22:40,469 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[511534,511547] [2021-11-25 18:22:40,469 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[511677,511690] [2021-11-25 18:22:40,469 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[511821,511834] [2021-11-25 18:22:40,470 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[511962,511975] [2021-11-25 18:22:40,471 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[512100,512113] [2021-11-25 18:22:40,471 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[512258,512271] [2021-11-25 18:22:40,472 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[512417,512430] [2021-11-25 18:22:40,472 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[512573,512586] [2021-11-25 18:22:40,472 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[512722,512735] [2021-11-25 18:22:40,473 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[512874,512887] [2021-11-25 18:22:40,474 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[513025,513038] [2021-11-25 18:22:40,474 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[513174,513187] [2021-11-25 18:22:40,475 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[513326,513339] [2021-11-25 18:22:40,475 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[513474,513487] [2021-11-25 18:22:40,476 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[513627,513640] [2021-11-25 18:22:40,477 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[513778,513791] [2021-11-25 18:22:40,477 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[513928,513941] [2021-11-25 18:22:40,479 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[514075,514088] [2021-11-25 18:22:40,479 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[514226,514239] [2021-11-25 18:22:40,479 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[514377,514390] [2021-11-25 18:22:40,480 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[514525,514538] [2021-11-25 18:22:40,480 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[514691,514704] [2021-11-25 18:22:40,481 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[514860,514873] [2021-11-25 18:22:40,481 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[515027,515040] [2021-11-25 18:22:40,481 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[515195,515208] [2021-11-25 18:22:40,482 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[515345,515358] [2021-11-25 18:22:40,483 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[515492,515505] [2021-11-25 18:22:40,483 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[515653,515666] [2021-11-25 18:22:40,484 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[515823,515836] [2021-11-25 18:22:40,484 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[515985,515998] [2021-11-25 18:22:40,518 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:22:40,571 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:22:41,150 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[502597,502610] [2021-11-25 18:22:41,151 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[502742,502755] [2021-11-25 18:22:41,151 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[502888,502901] [2021-11-25 18:22:41,151 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[503053,503066] [2021-11-25 18:22:41,152 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[503211,503224] [2021-11-25 18:22:41,152 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[503369,503382] [2021-11-25 18:22:41,153 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[503527,503540] [2021-11-25 18:22:41,153 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[503687,503700] [2021-11-25 18:22:41,153 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[503846,503859] [2021-11-25 18:22:41,154 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[503985,503998] [2021-11-25 18:22:41,154 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[504127,504140] [2021-11-25 18:22:41,155 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[504276,504289] [2021-11-25 18:22:41,155 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[504415,504428] [2021-11-25 18:22:41,155 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[504570,504583] [2021-11-25 18:22:41,156 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[504730,504743] [2021-11-25 18:22:41,156 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[504881,504894] [2021-11-25 18:22:41,157 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[505032,505045] [2021-11-25 18:22:41,157 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[505184,505197] [2021-11-25 18:22:41,157 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[505333,505346] [2021-11-25 18:22:41,158 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[505481,505494] [2021-11-25 18:22:41,158 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[505638,505651] [2021-11-25 18:22:41,159 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[505787,505800] [2021-11-25 18:22:41,159 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[505943,505956] [2021-11-25 18:22:41,159 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[506096,506109] [2021-11-25 18:22:41,160 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[506242,506255] [2021-11-25 18:22:41,160 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[506385,506398] [2021-11-25 18:22:41,161 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[506537,506550] [2021-11-25 18:22:41,161 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[506683,506696] [2021-11-25 18:22:41,161 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[506828,506841] [2021-11-25 18:22:41,162 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[506982,506995] [2021-11-25 18:22:41,162 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[507133,507146] [2021-11-25 18:22:41,163 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[507288,507301] [2021-11-25 18:22:41,163 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[507440,507453] [2021-11-25 18:22:41,163 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[507595,507608] [2021-11-25 18:22:41,164 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[507759,507772] [2021-11-25 18:22:41,164 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[507915,507928] [2021-11-25 18:22:41,165 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[508079,508092] [2021-11-25 18:22:41,165 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[508221,508234] [2021-11-25 18:22:41,166 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[508379,508392] [2021-11-25 18:22:41,166 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[508546,508559] [2021-11-25 18:22:41,166 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[508705,508718] [2021-11-25 18:22:41,167 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[508864,508877] [2021-11-25 18:22:41,167 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[509013,509026] [2021-11-25 18:22:41,168 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[509160,509173] [2021-11-25 18:22:41,168 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[509299,509312] [2021-11-25 18:22:41,168 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[509462,509475] [2021-11-25 18:22:41,169 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[509628,509641] [2021-11-25 18:22:41,169 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[509792,509805] [2021-11-25 18:22:41,170 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[509957,509970] [2021-11-25 18:22:41,170 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[510122,510135] [2021-11-25 18:22:41,170 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[510288,510301] [2021-11-25 18:22:41,171 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[510453,510466] [2021-11-25 18:22:41,171 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[510620,510633] [2021-11-25 18:22:41,172 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[510780,510793] [2021-11-25 18:22:41,172 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[510942,510955] [2021-11-25 18:22:41,172 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[511101,511114] [2021-11-25 18:22:41,173 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[511247,511260] [2021-11-25 18:22:41,173 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[511390,511403] [2021-11-25 18:22:41,174 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[511534,511547] [2021-11-25 18:22:41,179 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[511677,511690] [2021-11-25 18:22:41,180 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[511821,511834] [2021-11-25 18:22:41,181 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[511962,511975] [2021-11-25 18:22:41,181 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[512100,512113] [2021-11-25 18:22:41,182 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[512258,512271] [2021-11-25 18:22:41,182 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[512417,512430] [2021-11-25 18:22:41,186 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[512573,512586] [2021-11-25 18:22:41,186 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[512722,512735] [2021-11-25 18:22:41,186 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[512874,512887] [2021-11-25 18:22:41,187 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[513025,513038] [2021-11-25 18:22:41,187 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[513174,513187] [2021-11-25 18:22:41,187 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[513326,513339] [2021-11-25 18:22:41,188 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[513474,513487] [2021-11-25 18:22:41,188 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[513627,513640] [2021-11-25 18:22:41,188 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[513778,513791] [2021-11-25 18:22:41,189 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[513928,513941] [2021-11-25 18:22:41,189 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[514075,514088] [2021-11-25 18:22:41,189 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[514226,514239] [2021-11-25 18:22:41,190 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[514377,514390] [2021-11-25 18:22:41,190 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[514525,514538] [2021-11-25 18:22:41,190 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[514691,514704] [2021-11-25 18:22:41,191 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[514860,514873] [2021-11-25 18:22:41,191 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[515027,515040] [2021-11-25 18:22:41,191 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[515195,515208] [2021-11-25 18:22:41,192 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[515345,515358] [2021-11-25 18:22:41,192 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[515492,515505] [2021-11-25 18:22:41,192 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[515653,515666] [2021-11-25 18:22:41,193 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[515823,515836] [2021-11-25 18:22:41,193 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i[515985,515998] [2021-11-25 18:22:41,202 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:22:41,463 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:22:41,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:41 WrapperNode [2021-11-25 18:22:41,463 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:22:41,464 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:22:41,464 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:22:41,464 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:22:41,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:41" (1/1) ... [2021-11-25 18:22:41,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:41" (1/1) ... [2021-11-25 18:22:41,875 INFO L137 Inliner]: procedures = 807, calls = 4037, calls flagged for inlining = 385, calls inlined = 274, statements flattened = 8610 [2021-11-25 18:22:41,876 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:22:41,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:22:41,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:22:41,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:22:41,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:41" (1/1) ... [2021-11-25 18:22:41,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:41" (1/1) ... [2021-11-25 18:22:41,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:41" (1/1) ... [2021-11-25 18:22:41,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:41" (1/1) ... [2021-11-25 18:22:42,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:41" (1/1) ... [2021-11-25 18:22:42,257 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:41" (1/1) ... [2021-11-25 18:22:42,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:41" (1/1) ... [2021-11-25 18:22:42,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:22:42,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:22:42,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:22:42,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:22:42,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:41" (1/1) ... [2021-11-25 18:22:42,333 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:22:42,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:22:42,351 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:22:42,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:22:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_block_ioctl [2021-11-25 18:22:42,388 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_block_ioctl [2021-11-25 18:22:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_hw_get_capacity [2021-11-25 18:22:42,388 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_hw_get_capacity [2021-11-25 18:22:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-25 18:22:42,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-25 18:22:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_hw_read_device_status [2021-11-25 18:22:42,389 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_hw_read_device_status [2021-11-25 18:22:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_block_getgeo [2021-11-25 18:22:42,389 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_block_getgeo [2021-11-25 18:22:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 18:22:42,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 18:22:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 18:22:42,389 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 18:22:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_should_stop [2021-11-25 18:22:42,390 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_should_stop [2021-11-25 18:22:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-25 18:22:42,390 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-25 18:22:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_exec_internal_command [2021-11-25 18:22:42,390 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_exec_internal_command [2021-11-25 18:22:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-25 18:22:42,391 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-25 18:22:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_read_log_page [2021-11-25 18:22:42,391 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_read_log_page [2021-11-25 18:22:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 18:22:42,391 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 18:22:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-25 18:22:42,392 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-25 18:22:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_106 [2021-11-25 18:22:42,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_106 [2021-11-25 18:22:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure ata_swap_string [2021-11-25 18:22:42,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ata_swap_string [2021-11-25 18:22:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure __cpu_to_node [2021-11-25 18:22:42,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __cpu_to_node [2021-11-25 18:22:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2021-11-25 18:22:42,393 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2021-11-25 18:22:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-25 18:22:42,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-25 18:22:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-25 18:22:42,393 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-25 18:22:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure get_least_used_cpu_on_node [2021-11-25 18:22:42,394 INFO L138 BoogieDeclarations]: Found implementation of procedure get_least_used_cpu_on_node [2021-11-25 18:22:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 18:22:42,394 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 18:22:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 18:22:42,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 18:22:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-25 18:22:42,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-25 18:22:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:22:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-25 18:22:42,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-25 18:22:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 18:22:42,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 18:22:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2021-11-25 18:22:42,396 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2021-11-25 18:22:42,396 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-25 18:22:42,396 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-25 18:22:42,396 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2021-11-25 18:22:42,396 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2021-11-25 18:22:42,396 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc_node [2021-11-25 18:22:42,396 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc_node [2021-11-25 18:22:42,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-25 18:22:42,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-25 18:22:42,397 INFO L130 BoogieDeclarations]: Found specification of procedure __pcibus_to_node [2021-11-25 18:22:42,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __pcibus_to_node [2021-11-25 18:22:42,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:22:42,397 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_start_port [2021-11-25 18:22:42,398 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_start_port [2021-11-25 18:22:42,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:22:42,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 18:22:42,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 18:22:42,398 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 18:22:42,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 18:22:42,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:22:42,399 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2021-11-25 18:22:42,399 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2021-11-25 18:22:42,399 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 18:22:42,399 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-25 18:22:42,399 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-25 18:22:42,399 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-25 18:22:42,400 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-25 18:22:42,400 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 18:22:42,400 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 18:22:42,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2021-11-25 18:22:42,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2021-11-25 18:22:42,400 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-25 18:22:42,400 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-25 18:22:42,401 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_rq_from_tag [2021-11-25 18:22:42,401 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_rq_from_tag [2021-11-25 18:22:42,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:22:42,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:22:42,401 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-25 18:22:42,401 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-25 18:22:42,401 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-25 18:22:42,402 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-25 18:22:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_hba_reset [2021-11-25 18:22:42,402 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_hba_reset [2021-11-25 18:22:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 18:22:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure bdput [2021-11-25 18:22:42,402 INFO L138 BoogieDeclarations]: Found implementation of procedure bdput [2021-11-25 18:22:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_standby_immediate [2021-11-25 18:22:42,403 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_standby_immediate [2021-11-25 18:22:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_get [2021-11-25 18:22:42,403 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_get [2021-11-25 18:22:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-11-25 18:22:42,403 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-11-25 18:22:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-25 18:22:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-11-25 18:22:42,404 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-11-25 18:22:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2021-11-25 18:22:42,404 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2021-11-25 18:22:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-25 18:22:42,404 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-25 18:22:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_hw_sysfs_exit [2021-11-25 18:22:42,405 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_hw_sysfs_exit [2021-11-25 18:22:42,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 18:22:42,405 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 18:22:42,405 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_disable_link_opts [2021-11-25 18:22:42,405 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_disable_link_opts [2021-11-25 18:22:42,405 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2021-11-25 18:22:42,405 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2021-11-25 18:22:42,406 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_cmd_from_tag [2021-11-25 18:22:42,406 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_cmd_from_tag [2021-11-25 18:22:42,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-25 18:22:42,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-25 18:22:42,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-25 18:22:42,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-25 18:22:42,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:22:42,407 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 18:22:42,407 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 18:22:42,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-25 18:22:42,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-25 18:22:42,407 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_rq_to_pdu [2021-11-25 18:22:42,407 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_rq_to_pdu [2021-11-25 18:22:42,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:22:42,408 INFO L130 BoogieDeclarations]: Found specification of procedure exec_drive_taskfile [2021-11-25 18:22:42,408 INFO L138 BoogieDeclarations]: Found implementation of procedure exec_drive_taskfile [2021-11-25 18:22:42,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_104 [2021-11-25 18:22:42,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_104 [2021-11-25 18:22:42,408 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-25 18:22:42,408 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-25 18:22:42,409 INFO L130 BoogieDeclarations]: Found specification of procedure ida_remove [2021-11-25 18:22:42,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_remove [2021-11-25 18:22:42,409 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_restart_port [2021-11-25 18:22:42,409 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_restart_port [2021-11-25 18:22:42,409 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-25 18:22:42,409 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-25 18:22:42,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 18:22:42,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 18:22:42,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-25 18:22:42,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-25 18:22:42,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-25 18:22:42,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-25 18:22:42,410 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_pci_remove [2021-11-25 18:22:42,410 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_pci_remove [2021-11-25 18:22:42,410 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 18:22:42,411 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 18:22:42,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_devm_free_irq [2021-11-25 18:22:42,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_devm_free_irq [2021-11-25 18:22:42,411 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_block_compat_ioctl [2021-11-25 18:22:42,411 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_block_compat_ioctl [2021-11-25 18:22:42,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:22:42,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 18:22:42,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 18:22:42,412 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_affinity_hint [2021-11-25 18:22:42,412 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_affinity_hint [2021-11-25 18:22:42,412 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_pci_resume [2021-11-25 18:22:42,412 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_pci_resume [2021-11-25 18:22:42,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_105 [2021-11-25 18:22:42,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_105 [2021-11-25 18:22:42,413 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2021-11-25 18:22:42,413 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2021-11-25 18:22:42,413 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-25 18:22:42,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-25 18:22:42,413 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_device_reset [2021-11-25 18:22:42,413 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_device_reset [2021-11-25 18:22:42,413 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-25 18:22:42,414 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-25 18:22:42,414 INFO L130 BoogieDeclarations]: Found specification of procedure devm_free_irq [2021-11-25 18:22:42,414 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_free_irq [2021-11-25 18:22:42,414 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_end_request [2021-11-25 18:22:42,414 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_end_request [2021-11-25 18:22:42,414 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-25 18:22:42,414 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-25 18:22:42,415 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_block_initialize [2021-11-25 18:22:42,415 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_block_initialize [2021-11-25 18:22:42,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_find_bit_find_first_bit [2021-11-25 18:22:42,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_find_bit_find_first_bit [2021-11-25 18:22:42,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-25 18:22:42,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-25 18:22:42,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 18:22:42,416 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 18:22:42,416 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_hw_ioctl [2021-11-25 18:22:42,416 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_hw_ioctl [2021-11-25 18:22:42,416 INFO L130 BoogieDeclarations]: Found specification of procedure __first_node [2021-11-25 18:22:42,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __first_node [2021-11-25 18:22:42,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 18:22:42,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 18:22:42,417 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-25 18:22:42,417 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-25 18:22:42,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_del_gendisk [2021-11-25 18:22:42,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_del_gendisk [2021-11-25 18:22:42,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-25 18:22:42,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-25 18:22:42,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-25 18:22:42,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-25 18:22:42,418 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 18:22:42,418 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 18:22:42,418 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2021-11-25 18:22:42,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2021-11-25 18:22:42,418 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_deinit_port [2021-11-25 18:22:42,418 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_deinit_port [2021-11-25 18:22:42,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 18:22:42,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 18:22:42,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 18:22:42,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 18:22:42,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-25 18:22:42,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-25 18:22:42,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:22:42,420 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-25 18:22:42,420 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-25 18:22:42,420 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-11-25 18:22:42,420 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-11-25 18:22:42,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 18:22:42,420 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_free_tag_set [2021-11-25 18:22:42,420 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_free_tag_set [2021-11-25 18:22:42,420 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-25 18:22:42,421 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-25 18:22:42,421 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_hw_exit [2021-11-25 18:22:42,421 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_hw_exit [2021-11-25 18:22:42,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_dev_lock [2021-11-25 18:22:42,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_dev_lock [2021-11-25 18:22:42,421 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-25 18:22:42,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-25 18:22:42,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 18:22:42,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_blk_cleanup_queue [2021-11-25 18:22:42,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_blk_cleanup_queue [2021-11-25 18:22:42,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-25 18:22:42,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-25 18:22:42,422 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 18:22:42,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 18:22:42,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-25 18:22:42,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-25 18:22:42,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 18:22:42,423 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 18:22:42,423 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_first [2021-11-25 18:22:42,423 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_first [2021-11-25 18:22:42,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-25 18:22:42,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-25 18:22:42,424 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_get_next_rr_node [2021-11-25 18:22:42,424 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_get_next_rr_node [2021-11-25 18:22:42,424 INFO L130 BoogieDeclarations]: Found specification of procedure hba_setup [2021-11-25 18:22:42,424 INFO L138 BoogieDeclarations]: Found implementation of procedure hba_setup [2021-11-25 18:22:42,424 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_enable_fis [2021-11-25 18:22:42,424 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_enable_fis [2021-11-25 18:22:42,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 18:22:42,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 18:22:42,425 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2021-11-25 18:22:42,425 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2021-11-25 18:22:42,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-25 18:22:42,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-25 18:22:42,425 INFO L130 BoogieDeclarations]: Found specification of procedure pcim_iounmap_regions [2021-11-25 18:22:42,425 INFO L138 BoogieDeclarations]: Found implementation of procedure pcim_iounmap_regions [2021-11-25 18:22:42,425 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_hw_debugfs_exit [2021-11-25 18:22:42,426 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_hw_debugfs_exit [2021-11-25 18:22:42,426 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-25 18:22:42,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-25 18:22:42,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-25 18:22:42,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-25 18:22:42,426 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-25 18:22:42,426 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-25 18:22:42,427 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-25 18:22:42,427 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-25 18:22:42,427 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_put_int_command [2021-11-25 18:22:42,427 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_put_int_command [2021-11-25 18:22:42,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 18:22:42,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 18:22:42,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 18:22:42,428 INFO L130 BoogieDeclarations]: Found specification of procedure dmam_alloc_coherent [2021-11-25 18:22:42,428 INFO L138 BoogieDeclarations]: Found implementation of procedure dmam_alloc_coherent [2021-11-25 18:22:42,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 18:22:42,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 18:22:42,428 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2021-11-25 18:22:42,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2021-11-25 18:22:42,428 INFO L130 BoogieDeclarations]: Found specification of procedure print_tags [2021-11-25 18:22:42,428 INFO L138 BoogieDeclarations]: Found implementation of procedure print_tags [2021-11-25 18:22:42,429 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-25 18:22:42,429 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-25 18:22:42,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_find_bit_find_next_bit [2021-11-25 18:22:42,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_find_bit_find_next_bit [2021-11-25 18:22:42,429 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-25 18:22:42,429 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-25 18:22:42,429 INFO L130 BoogieDeclarations]: Found specification of procedure drop_cpu [2021-11-25 18:22:42,430 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_cpu [2021-11-25 18:22:42,430 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2021-11-25 18:22:42,430 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2021-11-25 18:22:42,430 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-25 18:22:42,430 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-25 18:22:42,430 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_hw_read_flags [2021-11-25 18:22:42,430 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_hw_read_flags [2021-11-25 18:22:42,430 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-25 18:22:42,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-25 18:22:42,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 18:22:42,431 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_init_port [2021-11-25 18:22:42,431 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_init_port [2021-11-25 18:22:42,431 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-25 18:22:42,431 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-25 18:22:42,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-25 18:22:42,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-25 18:22:42,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 18:22:42,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 18:22:42,432 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-11-25 18:22:42,432 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-11-25 18:22:42,432 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_start_stopped_hw_queues [2021-11-25 18:22:42,432 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_start_stopped_hw_queues [2021-11-25 18:22:42,432 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-11-25 18:22:42,433 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-11-25 18:22:42,433 INFO L130 BoogieDeclarations]: Found specification of procedure dmam_free_coherent [2021-11-25 18:22:42,433 INFO L138 BoogieDeclarations]: Found implementation of procedure dmam_free_coherent [2021-11-25 18:22:42,433 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-25 18:22:42,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-25 18:22:42,433 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_issue_ncq_command [2021-11-25 18:22:42,433 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_issue_ncq_command [2021-11-25 18:22:42,433 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_of_node [2021-11-25 18:22:42,434 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_of_node [2021-11-25 18:22:42,434 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_get_identify [2021-11-25 18:22:42,434 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_get_identify [2021-11-25 18:22:42,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-25 18:22:42,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-25 18:22:42,434 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 18:22:42,434 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 18:22:42,435 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-11-25 18:22:42,435 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-11-25 18:22:42,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-25 18:22:42,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-25 18:22:42,435 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_set_timeout [2021-11-25 18:22:42,435 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_set_timeout [2021-11-25 18:22:42,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-25 18:22:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-25 18:22:42,436 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-25 18:22:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-25 18:22:42,436 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_put [2021-11-25 18:22:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_put [2021-11-25 18:22:42,436 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_hw_read_registers [2021-11-25 18:22:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_hw_read_registers [2021-11-25 18:22:42,436 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_pci_shutdown [2021-11-25 18:22:42,437 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_pci_shutdown [2021-11-25 18:22:42,437 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_enable_engine [2021-11-25 18:22:42,437 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_enable_engine [2021-11-25 18:22:42,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 18:22:42,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 18:22:42,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-25 18:22:42,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-25 18:22:42,438 INFO L130 BoogieDeclarations]: Found specification of procedure pcim_enable_device [2021-11-25 18:22:42,438 INFO L138 BoogieDeclarations]: Found implementation of procedure pcim_enable_device [2021-11-25 18:22:42,438 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_check_surprise_removal [2021-11-25 18:22:42,438 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_check_surprise_removal [2021-11-25 18:22:42,438 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-25 18:22:42,438 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-25 18:22:42,438 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2021-11-25 18:22:42,438 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2021-11-25 18:22:42,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_put_disk [2021-11-25 18:22:42,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_put_disk [2021-11-25 18:22:42,439 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-25 18:22:42,439 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-25 18:22:42,439 INFO L130 BoogieDeclarations]: Found specification of procedure no_llseek [2021-11-25 18:22:42,439 INFO L138 BoogieDeclarations]: Found implementation of procedure no_llseek [2021-11-25 18:22:42,439 INFO L130 BoogieDeclarations]: Found specification of procedure simple_open [2021-11-25 18:22:42,440 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_open [2021-11-25 18:22:42,440 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-25 18:22:42,440 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-25 18:22:42,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:22:42,440 INFO L130 BoogieDeclarations]: Found specification of procedure mtip_dma_free [2021-11-25 18:22:42,440 INFO L138 BoogieDeclarations]: Found implementation of procedure mtip_dma_free [2021-11-25 18:22:43,693 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:22:43,701 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:22:43,890 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 18:22:59,404 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:23:00,964 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:23:00,964 INFO L301 CfgBuilder]: Removed 13 assume(true) statements. [2021-11-25 18:23:00,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:23:00 BoogieIcfgContainer [2021-11-25 18:23:00,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:23:00,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:23:00,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:23:00,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:23:00,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:22:34" (1/3) ... [2021-11-25 18:23:00,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b673a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:23:00, skipping insertion in model container [2021-11-25 18:23:00,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:22:41" (2/3) ... [2021-11-25 18:23:00,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b673a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:23:00, skipping insertion in model container [2021-11-25 18:23:00,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:23:00" (3/3) ... [2021-11-25 18:23:00,978 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--block--mtip32xx--mtip32xx.ko.cil.i [2021-11-25 18:23:00,983 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:23:00,983 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2021-11-25 18:23:01,039 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:23:01,045 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:23:01,045 INFO L340 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2021-11-25 18:23:01,107 INFO L276 IsEmpty]: Start isEmpty. Operand has 2542 states, 1475 states have (on average 1.3057627118644068) internal successors, (1926), 1569 states have internal predecessors, (1926), 856 states have call successors, (856), 178 states have call predecessors, (856), 177 states have return successors, (847), 834 states have call predecessors, (847), 847 states have call successors, (847) [2021-11-25 18:23:01,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-25 18:23:01,115 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:23:01,115 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:23:01,116 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:23:01,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:23:01,121 INFO L85 PathProgramCache]: Analyzing trace with hash 654937683, now seen corresponding path program 1 times [2021-11-25 18:23:01,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:23:01,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873237156] [2021-11-25 18:23:01,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:23:01,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:23:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:23:01,804 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 18:23:01,804 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:23:01,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873237156] [2021-11-25 18:23:01,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873237156] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:23:01,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:23:01,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:23:01,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218375044] [2021-11-25 18:23:01,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:23:01,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:23:01,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:23:01,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:23:01,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:23:01,858 INFO L87 Difference]: Start difference. First operand has 2542 states, 1475 states have (on average 1.3057627118644068) internal successors, (1926), 1569 states have internal predecessors, (1926), 856 states have call successors, (856), 178 states have call predecessors, (856), 177 states have return successors, (847), 834 states have call predecessors, (847), 847 states have call successors, (847) 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-25 18:23:04,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:23:06,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:23:08,173 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:23:12,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:23:14,908 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:23:15,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:23:15,425 INFO L93 Difference]: Finished difference Result 5652 states and 8143 transitions. [2021-11-25 18:23:15,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:23:15,427 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, (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 52 [2021-11-25 18:23:15,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:23:15,587 INFO L225 Difference]: With dead ends: 5652 [2021-11-25 18:23:15,587 INFO L226 Difference]: Without dead ends: 3132 [2021-11-25 18:23:15,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:23:15,611 INFO L933 BasicCegarLoop]: 3470 mSDtfsCounter, 3119 mSDsluCounter, 5059 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3134 SdHoareTripleChecker+Valid, 8029 SdHoareTripleChecker+Invalid, 880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:23:15,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3134 Valid, 8029 Invalid, 880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 876 Invalid, 4 Unknown, 0 Unchecked, 13.2s Time] [2021-11-25 18:23:15,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3132 states. [2021-11-25 18:23:15,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3132 to 3112. [2021-11-25 18:23:15,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3112 states, 1818 states have (on average 1.2706270627062706) internal successors, (2310), 1915 states have internal predecessors, (2310), 1011 states have call successors, (1011), 251 states have call predecessors, (1011), 250 states have return successors, (1012), 993 states have call predecessors, (1012), 1009 states have call successors, (1012) [2021-11-25 18:23:15,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3112 states to 3112 states and 4333 transitions. [2021-11-25 18:23:15,925 INFO L78 Accepts]: Start accepts. Automaton has 3112 states and 4333 transitions. Word has length 52 [2021-11-25 18:23:15,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:23:15,927 INFO L470 AbstractCegarLoop]: Abstraction has 3112 states and 4333 transitions. [2021-11-25 18:23:15,928 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-25 18:23:15,928 INFO L276 IsEmpty]: Start isEmpty. Operand 3112 states and 4333 transitions. [2021-11-25 18:23:15,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-25 18:23:15,937 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:23:15,937 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:23:15,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:23:15,938 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:23:15,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:23:15,941 INFO L85 PathProgramCache]: Analyzing trace with hash -351878937, now seen corresponding path program 1 times [2021-11-25 18:23:15,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:23:15,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430243855] [2021-11-25 18:23:15,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:23:15,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:23:16,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:23:16,283 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 18:23:16,284 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:23:16,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430243855] [2021-11-25 18:23:16,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430243855] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:23:16,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:23:16,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:23:16,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466336383] [2021-11-25 18:23:16,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:23:16,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:23:16,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:23:16,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:23:16,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:23:16,289 INFO L87 Difference]: Start difference. First operand 3112 states and 4333 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, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-25 18:23:18,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:23:22,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:23:23,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:23:28,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:23:30,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:23:31,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:23:31,923 INFO L93 Difference]: Finished difference Result 5364 states and 7472 transitions. [2021-11-25 18:23:31,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:23:31,924 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, (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 57 [2021-11-25 18:23:31,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:23:31,969 INFO L225 Difference]: With dead ends: 5364 [2021-11-25 18:23:31,969 INFO L226 Difference]: Without dead ends: 5362 [2021-11-25 18:23:31,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:23:31,974 INFO L933 BasicCegarLoop]: 4161 mSDtfsCounter, 3049 mSDsluCounter, 8060 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3062 SdHoareTripleChecker+Valid, 11468 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:23:31,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3062 Valid, 11468 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1168 Invalid, 4 Unknown, 0 Unchecked, 15.3s Time] [2021-11-25 18:23:31,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5362 states. [2021-11-25 18:23:32,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5362 to 5178. [2021-11-25 18:23:32,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5178 states, 3015 states have (on average 1.2683250414593699) internal successors, (3824), 3163 states have internal predecessors, (3824), 1715 states have call successors, (1715), 415 states have call predecessors, (1715), 415 states have return successors, (1734), 1679 states have call predecessors, (1734), 1713 states have call successors, (1734) [2021-11-25 18:23:32,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5178 states to 5178 states and 7273 transitions. [2021-11-25 18:23:32,274 INFO L78 Accepts]: Start accepts. Automaton has 5178 states and 7273 transitions. Word has length 57 [2021-11-25 18:23:32,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:23:32,275 INFO L470 AbstractCegarLoop]: Abstraction has 5178 states and 7273 transitions. [2021-11-25 18:23:32,275 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, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-25 18:23:32,276 INFO L276 IsEmpty]: Start isEmpty. Operand 5178 states and 7273 transitions. [2021-11-25 18:23:32,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-25 18:23:32,281 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:23:32,282 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:23:32,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:23:32,283 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:23:32,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:23:32,284 INFO L85 PathProgramCache]: Analyzing trace with hash 702603063, now seen corresponding path program 1 times [2021-11-25 18:23:32,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:23:32,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612233335] [2021-11-25 18:23:32,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:23:32,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:23:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:23:32,722 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 18:23:32,722 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:23:32,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612233335] [2021-11-25 18:23:32,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612233335] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:23:32,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:23:32,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:23:32,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126193895] [2021-11-25 18:23:32,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:23:32,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:23:32,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:23:32,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:23:32,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:23:32,725 INFO L87 Difference]: Start difference. First operand 5178 states and 7273 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, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-25 18:23:35,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:23:37,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:23:40,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:23:45,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:23:47,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:23:50,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:23:51,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:23:51,255 INFO L93 Difference]: Finished difference Result 9546 states and 13428 transitions. [2021-11-25 18:23:51,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:23:51,258 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, (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 62 [2021-11-25 18:23:51,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:23:51,342 INFO L225 Difference]: With dead ends: 9546 [2021-11-25 18:23:51,342 INFO L226 Difference]: Without dead ends: 9544 [2021-11-25 18:23:51,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:23:51,352 INFO L933 BasicCegarLoop]: 4009 mSDtfsCounter, 3097 mSDsluCounter, 7850 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3113 SdHoareTripleChecker+Valid, 11134 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:23:51,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3113 Valid, 11134 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1104 Invalid, 6 Unknown, 0 Unchecked, 18.2s Time] [2021-11-25 18:23:51,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9544 states. [2021-11-25 18:23:51,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9544 to 9360. [2021-11-25 18:23:51,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9360 states, 5438 states have (on average 1.2670099301213682) internal successors, (6890), 5690 states have internal predecessors, (6890), 3137 states have call successors, (3137), 751 states have call predecessors, (3137), 752 states have return successors, (3203), 3061 states have call predecessors, (3203), 3135 states have call successors, (3203) [2021-11-25 18:23:51,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9360 states to 9360 states and 13230 transitions. [2021-11-25 18:23:51,920 INFO L78 Accepts]: Start accepts. Automaton has 9360 states and 13230 transitions. Word has length 62 [2021-11-25 18:23:51,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:23:51,921 INFO L470 AbstractCegarLoop]: Abstraction has 9360 states and 13230 transitions. [2021-11-25 18:23:51,922 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, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-25 18:23:51,922 INFO L276 IsEmpty]: Start isEmpty. Operand 9360 states and 13230 transitions. [2021-11-25 18:23:51,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-25 18:23:51,924 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:23:51,924 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:23:51,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 18:23:51,925 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:23:51,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:23:51,925 INFO L85 PathProgramCache]: Analyzing trace with hash 590450854, now seen corresponding path program 1 times [2021-11-25 18:23:51,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:23:51,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918125149] [2021-11-25 18:23:51,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:23:51,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:23:52,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:23:52,296 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 18:23:52,296 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:23:52,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918125149] [2021-11-25 18:23:52,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918125149] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:23:52,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:23:52,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:23:52,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391253735] [2021-11-25 18:23:52,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:23:52,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:23:52,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:23:52,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:23:52,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:23:52,300 INFO L87 Difference]: Start difference. First operand 9360 states and 13230 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 18:23:54,877 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:23:57,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:24:05,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:24:08,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:24:08,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:24:08,913 INFO L93 Difference]: Finished difference Result 18079 states and 25846 transitions. [2021-11-25 18:24:08,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:24:08,914 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, (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 67 [2021-11-25 18:24:08,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:24:09,049 INFO L225 Difference]: With dead ends: 18079 [2021-11-25 18:24:09,050 INFO L226 Difference]: Without dead ends: 18077 [2021-11-25 18:24:09,064 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 [2021-11-25 18:24:09,065 INFO L933 BasicCegarLoop]: 4699 mSDtfsCounter, 3199 mSDsluCounter, 8635 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3204 SdHoareTripleChecker+Valid, 12522 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:24:09,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3204 Valid, 12522 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1276 Invalid, 4 Unknown, 0 Unchecked, 16.1s Time] [2021-11-25 18:24:09,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18077 states. [2021-11-25 18:24:10,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18077 to 17798. [2021-11-25 18:24:10,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17798 states, 10326 states have (on average 1.2665117179934147) internal successors, (13078), 10789 states have internal predecessors, (13078), 6004 states have call successors, (6004), 1431 states have call predecessors, (6004), 1435 states have return successors, (6397), 5855 states have call predecessors, (6397), 6002 states have call successors, (6397) [2021-11-25 18:24:10,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17798 states to 17798 states and 25479 transitions. [2021-11-25 18:24:10,144 INFO L78 Accepts]: Start accepts. Automaton has 17798 states and 25479 transitions. Word has length 67 [2021-11-25 18:24:10,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:24:10,144 INFO L470 AbstractCegarLoop]: Abstraction has 17798 states and 25479 transitions. [2021-11-25 18:24:10,144 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 18:24:10,145 INFO L276 IsEmpty]: Start isEmpty. Operand 17798 states and 25479 transitions. [2021-11-25 18:24:10,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-25 18:24:10,146 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:24:10,146 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:24:10,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 18:24:10,146 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:24:10,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:24:10,147 INFO L85 PathProgramCache]: Analyzing trace with hash -188236258, now seen corresponding path program 1 times [2021-11-25 18:24:10,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:24:10,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196535270] [2021-11-25 18:24:10,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:24:10,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:24:10,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:24:10,375 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 18:24:10,376 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:24:10,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196535270] [2021-11-25 18:24:10,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196535270] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:24:10,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:24:10,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:24:10,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365147700] [2021-11-25 18:24:10,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:24:10,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:24:10,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:24:10,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:24:10,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:24:10,379 INFO L87 Difference]: Start difference. First operand 17798 states and 25479 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 18:24:12,909 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:24:15,902 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:24:17,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:24:19,788 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:24:22,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:24:24,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:24:25,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:24:25,644 INFO L93 Difference]: Finished difference Result 17843 states and 25599 transitions. [2021-11-25 18:24:25,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:24:25,645 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, (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 72 [2021-11-25 18:24:25,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:24:25,723 INFO L225 Difference]: With dead ends: 17843 [2021-11-25 18:24:25,723 INFO L226 Difference]: Without dead ends: 17841 [2021-11-25 18:24:25,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:24:25,731 INFO L933 BasicCegarLoop]: 3438 mSDtfsCounter, 3088 mSDsluCounter, 5024 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3103 SdHoareTripleChecker+Valid, 7963 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:24:25,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3103 Valid, 7963 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 874 Invalid, 4 Unknown, 0 Unchecked, 14.8s Time] [2021-11-25 18:24:25,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17841 states. [2021-11-25 18:24:26,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17841 to 17812. [2021-11-25 18:24:26,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17812 states, 10336 states have (on average 1.266157120743034) internal successors, (13087), 10797 states have internal predecessors, (13087), 6004 states have call successors, (6004), 1431 states have call predecessors, (6004), 1440 states have return successors, (6423), 5861 states have call predecessors, (6423), 6002 states have call successors, (6423) [2021-11-25 18:24:26,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17812 states to 17812 states and 25514 transitions. [2021-11-25 18:24:26,693 INFO L78 Accepts]: Start accepts. Automaton has 17812 states and 25514 transitions. Word has length 72 [2021-11-25 18:24:26,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:24:26,693 INFO L470 AbstractCegarLoop]: Abstraction has 17812 states and 25514 transitions. [2021-11-25 18:24:26,693 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 18:24:26,693 INFO L276 IsEmpty]: Start isEmpty. Operand 17812 states and 25514 transitions. [2021-11-25 18:24:26,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-25 18:24:26,694 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:24:26,695 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:24:26,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 18:24:26,695 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:24:26,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:24:26,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1681665651, now seen corresponding path program 1 times [2021-11-25 18:24:26,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:24:26,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761758500] [2021-11-25 18:24:26,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:24:26,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:24:26,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:24:26,983 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 18:24:26,983 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:24:26,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761758500] [2021-11-25 18:24:26,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761758500] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:24:26,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:24:26,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:24:26,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846734173] [2021-11-25 18:24:26,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:24:26,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:24:26,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:24:26,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:24:26,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:24:26,986 INFO L87 Difference]: Start difference. First operand 17812 states and 25514 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 18:24:29,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:24:31,945 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:24:33,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:24:38,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:24:40,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:24:41,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:24:41,553 INFO L93 Difference]: Finished difference Result 17841 states and 25597 transitions. [2021-11-25 18:24:41,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:24:41,554 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, (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 77 [2021-11-25 18:24:41,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:24:41,649 INFO L225 Difference]: With dead ends: 17841 [2021-11-25 18:24:41,649 INFO L226 Difference]: Without dead ends: 17839 [2021-11-25 18:24:41,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:24:41,664 INFO L933 BasicCegarLoop]: 3436 mSDtfsCounter, 3085 mSDsluCounter, 5022 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3100 SdHoareTripleChecker+Valid, 7959 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:24:41,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3100 Valid, 7959 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 874 Invalid, 4 Unknown, 0 Unchecked, 14.2s Time] [2021-11-25 18:24:41,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17839 states. [2021-11-25 18:24:42,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17839 to 17810. [2021-11-25 18:24:42,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17810 states, 10335 states have (on average 1.266086115142719) internal successors, (13085), 10795 states have internal predecessors, (13085), 6004 states have call successors, (6004), 1431 states have call predecessors, (6004), 1440 states have return successors, (6423), 5861 states have call predecessors, (6423), 6002 states have call successors, (6423) [2021-11-25 18:24:42,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17810 states to 17810 states and 25512 transitions. [2021-11-25 18:24:42,762 INFO L78 Accepts]: Start accepts. Automaton has 17810 states and 25512 transitions. Word has length 77 [2021-11-25 18:24:42,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:24:42,763 INFO L470 AbstractCegarLoop]: Abstraction has 17810 states and 25512 transitions. [2021-11-25 18:24:42,763 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 18:24:42,763 INFO L276 IsEmpty]: Start isEmpty. Operand 17810 states and 25512 transitions. [2021-11-25 18:24:42,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-25 18:24:42,766 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:24:42,767 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:24:42,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 18:24:42,767 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:24:42,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:24:42,768 INFO L85 PathProgramCache]: Analyzing trace with hash 981355216, now seen corresponding path program 1 times [2021-11-25 18:24:42,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:24:42,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254121173] [2021-11-25 18:24:42,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:24:42,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:24:42,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:24:43,021 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 18:24:43,022 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:24:43,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254121173] [2021-11-25 18:24:43,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254121173] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:24:43,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:24:43,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:24:43,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883814227] [2021-11-25 18:24:43,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:24:43,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:24:43,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:24:43,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:24:43,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:24:43,024 INFO L87 Difference]: Start difference. First operand 17810 states and 25512 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 18:24:45,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:24:48,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:24:49,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:24:53,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:24:55,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:24:58,177 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:24:58,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:24:58,454 INFO L93 Difference]: Finished difference Result 17839 states and 25595 transitions. [2021-11-25 18:24:58,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:24:58,454 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, (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 82 [2021-11-25 18:24:58,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:24:58,532 INFO L225 Difference]: With dead ends: 17839 [2021-11-25 18:24:58,532 INFO L226 Difference]: Without dead ends: 17837 [2021-11-25 18:24:58,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:24:58,543 INFO L933 BasicCegarLoop]: 3434 mSDtfsCounter, 3082 mSDsluCounter, 5020 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3097 SdHoareTripleChecker+Valid, 7955 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2021-11-25 18:24:58,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3097 Valid, 7955 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 873 Invalid, 5 Unknown, 0 Unchecked, 14.9s Time] [2021-11-25 18:24:58,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17837 states. [2021-11-25 18:24:59,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17837 to 17808. [2021-11-25 18:24:59,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17808 states, 10334 states have (on average 1.266015095800271) internal successors, (13083), 10793 states have internal predecessors, (13083), 6004 states have call successors, (6004), 1431 states have call predecessors, (6004), 1440 states have return successors, (6423), 5861 states have call predecessors, (6423), 6002 states have call successors, (6423) [2021-11-25 18:24:59,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17808 states to 17808 states and 25510 transitions. [2021-11-25 18:24:59,706 INFO L78 Accepts]: Start accepts. Automaton has 17808 states and 25510 transitions. Word has length 82 [2021-11-25 18:24:59,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:24:59,708 INFO L470 AbstractCegarLoop]: Abstraction has 17808 states and 25510 transitions. [2021-11-25 18:24:59,708 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 18:24:59,708 INFO L276 IsEmpty]: Start isEmpty. Operand 17808 states and 25510 transitions. [2021-11-25 18:24:59,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-25 18:24:59,715 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:24:59,716 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:24:59,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 18:24:59,716 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:24:59,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:24:59,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1376452858, now seen corresponding path program 1 times [2021-11-25 18:24:59,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:24:59,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272459388] [2021-11-25 18:24:59,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:24:59,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:24:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:24:59,899 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 18:24:59,899 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:24:59,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272459388] [2021-11-25 18:24:59,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272459388] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:24:59,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:24:59,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:24:59,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51716666] [2021-11-25 18:24:59,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:24:59,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:24:59,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:24:59,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:24:59,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:24:59,902 INFO L87 Difference]: Start difference. First operand 17808 states and 25510 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 18:25:02,450 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:25:05,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:25:10,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:25:12,731 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:25:13,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:25:13,618 INFO L93 Difference]: Finished difference Result 17837 states and 25593 transitions. [2021-11-25 18:25:13,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:25:13,618 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, (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 87 [2021-11-25 18:25:13,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:25:13,689 INFO L225 Difference]: With dead ends: 17837 [2021-11-25 18:25:13,689 INFO L226 Difference]: Without dead ends: 17835 [2021-11-25 18:25:13,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:25:13,697 INFO L933 BasicCegarLoop]: 3432 mSDtfsCounter, 3083 mSDsluCounter, 5014 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3098 SdHoareTripleChecker+Valid, 7947 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:25:13,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3098 Valid, 7947 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 874 Invalid, 4 Unknown, 0 Unchecked, 13.1s Time] [2021-11-25 18:25:13,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17835 states. [2021-11-25 18:25:14,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17835 to 17806. [2021-11-25 18:25:14,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17806 states, 10333 states have (on average 1.2659440627117005) internal successors, (13081), 10791 states have internal predecessors, (13081), 6004 states have call successors, (6004), 1431 states have call predecessors, (6004), 1440 states have return successors, (6423), 5861 states have call predecessors, (6423), 6002 states have call successors, (6423) [2021-11-25 18:25:14,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17806 states to 17806 states and 25508 transitions. [2021-11-25 18:25:14,857 INFO L78 Accepts]: Start accepts. Automaton has 17806 states and 25508 transitions. Word has length 87 [2021-11-25 18:25:14,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:25:14,857 INFO L470 AbstractCegarLoop]: Abstraction has 17806 states and 25508 transitions. [2021-11-25 18:25:14,857 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 18:25:14,858 INFO L276 IsEmpty]: Start isEmpty. Operand 17806 states and 25508 transitions. [2021-11-25 18:25:14,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-25 18:25:14,862 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:25:14,862 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:25:14,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 18:25:14,862 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:25:14,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:25:14,863 INFO L85 PathProgramCache]: Analyzing trace with hash -78525027, now seen corresponding path program 1 times [2021-11-25 18:25:14,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:25:14,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026359490] [2021-11-25 18:25:14,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:25:14,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:25:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:25:15,057 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 18:25:15,057 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:25:15,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026359490] [2021-11-25 18:25:15,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026359490] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:25:15,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:25:15,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:25:15,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042632215] [2021-11-25 18:25:15,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:25:15,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:25:15,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:25:15,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:25:15,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:25:15,060 INFO L87 Difference]: Start difference. First operand 17806 states and 25508 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 18:25:17,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:25:19,774 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:25:22,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:25:24,970 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:25:27,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:25:29,234 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:25:31,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:25:32,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:25:32,177 INFO L93 Difference]: Finished difference Result 17881 states and 25640 transitions. [2021-11-25 18:25:32,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:25:32,178 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, (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 89 [2021-11-25 18:25:32,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:25:32,231 INFO L225 Difference]: With dead ends: 17881 [2021-11-25 18:25:32,232 INFO L226 Difference]: Without dead ends: 17879 [2021-11-25 18:25:32,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:25:32,238 INFO L933 BasicCegarLoop]: 3422 mSDtfsCounter, 3134 mSDsluCounter, 4902 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3148 SdHoareTripleChecker+Valid, 7842 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:25:32,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3148 Valid, 7842 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 857 Invalid, 4 Unknown, 0 Unchecked, 16.5s Time] [2021-11-25 18:25:32,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17879 states. [2021-11-25 18:25:33,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17879 to 17850. [2021-11-25 18:25:33,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17850 states, 10357 states have (on average 1.2656174567925076) internal successors, (13108), 10814 states have internal predecessors, (13108), 6014 states have call successors, (6014), 1442 states have call predecessors, (6014), 1451 states have return successors, (6433), 5871 states have call predecessors, (6433), 6012 states have call successors, (6433) [2021-11-25 18:25:33,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17850 states to 17850 states and 25555 transitions. [2021-11-25 18:25:33,259 INFO L78 Accepts]: Start accepts. Automaton has 17850 states and 25555 transitions. Word has length 89 [2021-11-25 18:25:33,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:25:33,259 INFO L470 AbstractCegarLoop]: Abstraction has 17850 states and 25555 transitions. [2021-11-25 18:25:33,260 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 18:25:33,260 INFO L276 IsEmpty]: Start isEmpty. Operand 17850 states and 25555 transitions. [2021-11-25 18:25:33,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-25 18:25:33,262 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:25:33,262 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:25:33,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 18:25:33,263 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:25:33,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:25:33,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1364289214, now seen corresponding path program 1 times [2021-11-25 18:25:33,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:25:33,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051002247] [2021-11-25 18:25:33,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:25:33,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:25:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:25:33,452 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 18:25:33,452 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:25:33,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051002247] [2021-11-25 18:25:33,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051002247] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:25:33,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:25:33,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:25:33,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230181474] [2021-11-25 18:25:33,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:25:33,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:25:33,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:25:33,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:25:33,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:25:33,455 INFO L87 Difference]: Start difference. First operand 17850 states and 25555 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, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 18:25:36,039 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:25:38,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:25:40,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:25:45,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:25:47,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:25:48,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:25:48,340 INFO L93 Difference]: Finished difference Result 17887 states and 25654 transitions. [2021-11-25 18:25:48,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:25:48,340 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, (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 94 [2021-11-25 18:25:48,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:25:48,383 INFO L225 Difference]: With dead ends: 17887 [2021-11-25 18:25:48,383 INFO L226 Difference]: Without dead ends: 17885 [2021-11-25 18:25:48,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:25:48,391 INFO L933 BasicCegarLoop]: 3428 mSDtfsCounter, 3073 mSDsluCounter, 5014 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3091 SdHoareTripleChecker+Valid, 7944 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:25:48,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3091 Valid, 7944 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 872 Invalid, 5 Unknown, 0 Unchecked, 14.3s Time] [2021-11-25 18:25:48,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17885 states. [2021-11-25 18:25:49,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17885 to 17856. [2021-11-25 18:25:49,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17856 states, 10360 states have (on average 1.2654440154440154) internal successors, (13110), 10820 states have internal predecessors, (13110), 6014 states have call successors, (6014), 1442 states have call predecessors, (6014), 1455 states have return successors, (6445), 5871 states have call predecessors, (6445), 6012 states have call successors, (6445) [2021-11-25 18:25:49,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17856 states to 17856 states and 25569 transitions. [2021-11-25 18:25:49,350 INFO L78 Accepts]: Start accepts. Automaton has 17856 states and 25569 transitions. Word has length 94 [2021-11-25 18:25:49,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:25:49,351 INFO L470 AbstractCegarLoop]: Abstraction has 17856 states and 25569 transitions. [2021-11-25 18:25:49,351 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, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 18:25:49,351 INFO L276 IsEmpty]: Start isEmpty. Operand 17856 states and 25569 transitions. [2021-11-25 18:25:49,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-25 18:25:49,353 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:25:49,353 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:25:49,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 18:25:49,354 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:25:49,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:25:49,354 INFO L85 PathProgramCache]: Analyzing trace with hash 809879002, now seen corresponding path program 1 times [2021-11-25 18:25:49,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:25:49,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275805474] [2021-11-25 18:25:49,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:25:49,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:25:49,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:25:49,549 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 18:25:49,549 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:25:49,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275805474] [2021-11-25 18:25:49,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275805474] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:25:49,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:25:49,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:25:49,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207502709] [2021-11-25 18:25:49,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:25:49,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:25:49,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:25:49,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:25:49,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:25:49,552 INFO L87 Difference]: Start difference. First operand 17856 states and 25569 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, (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) [2021-11-25 18:25:52,104 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:25:55,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:25:57,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:26:01,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:26:03,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:26:04,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:26:04,547 INFO L93 Difference]: Finished difference Result 17885 states and 25652 transitions. [2021-11-25 18:26:04,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:26:04,548 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, (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 99 [2021-11-25 18:26:04,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:26:04,605 INFO L225 Difference]: With dead ends: 17885 [2021-11-25 18:26:04,606 INFO L226 Difference]: Without dead ends: 17883 [2021-11-25 18:26:04,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:26:04,615 INFO L933 BasicCegarLoop]: 3426 mSDtfsCounter, 3071 mSDsluCounter, 5012 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3086 SdHoareTripleChecker+Valid, 7939 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:26:04,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3086 Valid, 7939 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 874 Invalid, 4 Unknown, 0 Unchecked, 14.3s Time] [2021-11-25 18:26:04,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17883 states. [2021-11-25 18:26:05,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17883 to 17854. [2021-11-25 18:26:05,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17854 states, 10359 states have (on average 1.2653731055121151) internal successors, (13108), 10818 states have internal predecessors, (13108), 6014 states have call successors, (6014), 1442 states have call predecessors, (6014), 1455 states have return successors, (6445), 5871 states have call predecessors, (6445), 6012 states have call successors, (6445) [2021-11-25 18:26:05,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17854 states to 17854 states and 25567 transitions. [2021-11-25 18:26:05,641 INFO L78 Accepts]: Start accepts. Automaton has 17854 states and 25567 transitions. Word has length 99 [2021-11-25 18:26:05,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:26:05,641 INFO L470 AbstractCegarLoop]: Abstraction has 17854 states and 25567 transitions. [2021-11-25 18:26:05,641 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, (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) [2021-11-25 18:26:05,641 INFO L276 IsEmpty]: Start isEmpty. Operand 17854 states and 25567 transitions. [2021-11-25 18:26:05,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-25 18:26:05,643 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:26:05,644 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:26:05,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 18:26:05,644 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:26:05,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:26:05,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1929358148, now seen corresponding path program 1 times [2021-11-25 18:26:05,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:26:05,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792027648] [2021-11-25 18:26:05,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:26:05,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:26:05,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:26:05,849 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 18:26:05,849 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:26:05,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792027648] [2021-11-25 18:26:05,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792027648] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:26:05,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:26:05,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:26:05,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999231123] [2021-11-25 18:26:05,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:26:05,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:26:05,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:26:05,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:26:05,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:26:05,852 INFO L87 Difference]: Start difference. First operand 17854 states and 25567 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, (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) [2021-11-25 18:26:08,674 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:26:11,153 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:26:15,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:26:18,468 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:26:20,731 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:26:22,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:26:22,519 INFO L93 Difference]: Finished difference Result 17883 states and 25650 transitions. [2021-11-25 18:26:22,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:26:22,534 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, (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 104 [2021-11-25 18:26:22,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:26:22,616 INFO L225 Difference]: With dead ends: 17883 [2021-11-25 18:26:22,616 INFO L226 Difference]: Without dead ends: 17881 [2021-11-25 18:26:22,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:26:22,630 INFO L933 BasicCegarLoop]: 3424 mSDtfsCounter, 3068 mSDsluCounter, 5010 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3083 SdHoareTripleChecker+Valid, 7935 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:26:22,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3083 Valid, 7935 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 874 Invalid, 4 Unknown, 0 Unchecked, 16.0s Time] [2021-11-25 18:26:22,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17881 states. [2021-11-25 18:26:23,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17881 to 17852. [2021-11-25 18:26:23,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17852 states, 10358 states have (on average 1.2653021818883954) internal successors, (13106), 10816 states have internal predecessors, (13106), 6014 states have call successors, (6014), 1442 states have call predecessors, (6014), 1455 states have return successors, (6445), 5871 states have call predecessors, (6445), 6012 states have call successors, (6445) [2021-11-25 18:26:23,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17852 states to 17852 states and 25565 transitions. [2021-11-25 18:26:23,773 INFO L78 Accepts]: Start accepts. Automaton has 17852 states and 25565 transitions. Word has length 104 [2021-11-25 18:26:23,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:26:23,773 INFO L470 AbstractCegarLoop]: Abstraction has 17852 states and 25565 transitions. [2021-11-25 18:26:23,773 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, (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) [2021-11-25 18:26:23,774 INFO L276 IsEmpty]: Start isEmpty. Operand 17852 states and 25565 transitions. [2021-11-25 18:26:23,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-25 18:26:23,776 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:26:23,776 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:26:23,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 18:26:23,776 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:26:23,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:26:23,777 INFO L85 PathProgramCache]: Analyzing trace with hash 2065705624, now seen corresponding path program 1 times [2021-11-25 18:26:23,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:26:23,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661287409] [2021-11-25 18:26:23,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:26:23,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:26:23,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:26:23,961 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 18:26:23,961 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:26:23,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661287409] [2021-11-25 18:26:23,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661287409] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:26:23,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:26:23,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:26:23,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425117202] [2021-11-25 18:26:23,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:26:23,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:26:23,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:26:23,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:26:23,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:26:23,964 INFO L87 Difference]: Start difference. First operand 17852 states and 25565 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, (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) [2021-11-25 18:26:26,659 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:26:29,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:26:34,752 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:26:37,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:26:40,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:26:41,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:26:41,078 INFO L93 Difference]: Finished difference Result 17881 states and 25648 transitions. [2021-11-25 18:26:41,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:26:41,079 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, (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 109 [2021-11-25 18:26:41,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:26:41,135 INFO L225 Difference]: With dead ends: 17881 [2021-11-25 18:26:41,135 INFO L226 Difference]: Without dead ends: 17879 [2021-11-25 18:26:41,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:26:41,145 INFO L933 BasicCegarLoop]: 3422 mSDtfsCounter, 3065 mSDsluCounter, 5006 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3080 SdHoareTripleChecker+Valid, 7931 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:26:41,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3080 Valid, 7931 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 871 Invalid, 5 Unknown, 0 Unchecked, 16.3s Time] [2021-11-25 18:26:41,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17879 states. [2021-11-25 18:26:42,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17879 to 17850. [2021-11-25 18:26:42,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17850 states, 10357 states have (on average 1.2652312445688907) internal successors, (13104), 10814 states have internal predecessors, (13104), 6014 states have call successors, (6014), 1442 states have call predecessors, (6014), 1455 states have return successors, (6445), 5871 states have call predecessors, (6445), 6012 states have call successors, (6445) [2021-11-25 18:26:42,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17850 states to 17850 states and 25563 transitions. [2021-11-25 18:26:42,116 INFO L78 Accepts]: Start accepts. Automaton has 17850 states and 25563 transitions. Word has length 109 [2021-11-25 18:26:42,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:26:42,117 INFO L470 AbstractCegarLoop]: Abstraction has 17850 states and 25563 transitions. [2021-11-25 18:26:42,117 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, (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) [2021-11-25 18:26:42,117 INFO L276 IsEmpty]: Start isEmpty. Operand 17850 states and 25563 transitions. [2021-11-25 18:26:42,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-25 18:26:42,119 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:26:42,120 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:26:42,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-25 18:26:42,120 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:26:42,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:26:42,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1194289327, now seen corresponding path program 1 times [2021-11-25 18:26:42,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:26:42,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162780116] [2021-11-25 18:26:42,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:26:42,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:26:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:26:42,329 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 18:26:42,329 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:26:42,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162780116] [2021-11-25 18:26:42,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162780116] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:26:42,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:26:42,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:26:42,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445388067] [2021-11-25 18:26:42,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:26:42,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:26:42,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:26:42,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:26:42,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:26:42,331 INFO L87 Difference]: Start difference. First operand 17850 states and 25563 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, (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) [2021-11-25 18:26:45,097 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:26:47,677 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:26:51,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:26:54,884 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:26:57,307 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:27:00,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:27:00,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:27:00,746 INFO L93 Difference]: Finished difference Result 17879 states and 25646 transitions. [2021-11-25 18:27:00,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:27:00,747 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, (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 114 [2021-11-25 18:27:00,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:27:00,803 INFO L225 Difference]: With dead ends: 17879 [2021-11-25 18:27:00,803 INFO L226 Difference]: Without dead ends: 17877 [2021-11-25 18:27:00,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:27:00,814 INFO L933 BasicCegarLoop]: 3420 mSDtfsCounter, 3062 mSDsluCounter, 5004 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3077 SdHoareTripleChecker+Valid, 7927 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:27:00,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3077 Valid, 7927 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 871 Invalid, 5 Unknown, 0 Unchecked, 17.5s Time] [2021-11-25 18:27:00,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17877 states. [2021-11-25 18:27:01,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17877 to 17848. [2021-11-25 18:27:01,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17848 states, 10356 states have (on average 1.265160293549633) internal successors, (13102), 10812 states have internal predecessors, (13102), 6014 states have call successors, (6014), 1442 states have call predecessors, (6014), 1455 states have return successors, (6445), 5871 states have call predecessors, (6445), 6012 states have call successors, (6445) [2021-11-25 18:27:01,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17848 states to 17848 states and 25561 transitions. [2021-11-25 18:27:01,845 INFO L78 Accepts]: Start accepts. Automaton has 17848 states and 25561 transitions. Word has length 114 [2021-11-25 18:27:01,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:27:01,845 INFO L470 AbstractCegarLoop]: Abstraction has 17848 states and 25561 transitions. [2021-11-25 18:27:01,845 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, (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) [2021-11-25 18:27:01,845 INFO L276 IsEmpty]: Start isEmpty. Operand 17848 states and 25561 transitions. [2021-11-25 18:27:01,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-25 18:27:01,847 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:27:01,848 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:27:01,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-25 18:27:01,848 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_lib_find_bit_find_next_bitErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:27:01,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:27:01,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1780212795, now seen corresponding path program 1 times [2021-11-25 18:27:01,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:27:01,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940854228] [2021-11-25 18:27:01,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:27:01,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:27:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:27:02,630 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2021-11-25 18:27:02,630 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:27:02,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940854228] [2021-11-25 18:27:02,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940854228] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:27:02,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:27:02,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:27:02,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230115980] [2021-11-25 18:27:02,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:27:02,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:27:02,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:27:02,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:27:02,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:27:02,634 INFO L87 Difference]: Start difference. First operand 17848 states and 25561 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-25 18:27:05,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:27:08,607 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:27:13,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:27:16,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:27:19,456 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:27:19,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:27:19,897 INFO L93 Difference]: Finished difference Result 35609 states and 51009 transitions. [2021-11-25 18:27:19,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:27:19,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 133 [2021-11-25 18:27:19,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:27:19,976 INFO L225 Difference]: With dead ends: 35609 [2021-11-25 18:27:19,976 INFO L226 Difference]: Without dead ends: 17800 [2021-11-25 18:27:20,087 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 [2021-11-25 18:27:20,088 INFO L933 BasicCegarLoop]: 3162 mSDtfsCounter, 1 mSDsluCounter, 3522 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6321 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:27:20,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 6321 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 727 Invalid, 5 Unknown, 0 Unchecked, 16.0s Time] [2021-11-25 18:27:20,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17800 states. [2021-11-25 18:27:20,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17800 to 17800. [2021-11-25 18:27:20,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17800 states, 10324 states have (on average 1.2644323905463) internal successors, (13054), 10780 states have internal predecessors, (13054), 5998 states have call successors, (5998), 1442 states have call predecessors, (5998), 1455 states have return successors, (6429), 5855 states have call predecessors, (6429), 5996 states have call successors, (6429) [2021-11-25 18:27:21,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17800 states to 17800 states and 25481 transitions. [2021-11-25 18:27:21,088 INFO L78 Accepts]: Start accepts. Automaton has 17800 states and 25481 transitions. Word has length 133 [2021-11-25 18:27:21,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:27:21,089 INFO L470 AbstractCegarLoop]: Abstraction has 17800 states and 25481 transitions. [2021-11-25 18:27:21,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-25 18:27:21,090 INFO L276 IsEmpty]: Start isEmpty. Operand 17800 states and 25481 transitions. [2021-11-25 18:27:21,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-25 18:27:21,093 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:27:21,093 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:27:21,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-25 18:27:21,093 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:27:21,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:27:21,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1985029419, now seen corresponding path program 1 times [2021-11-25 18:27:21,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:27:21,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202310922] [2021-11-25 18:27:21,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:27:21,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:27:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:27:21,336 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 18:27:21,336 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:27:21,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202310922] [2021-11-25 18:27:21,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202310922] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:27:21,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:27:21,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:27:21,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014725051] [2021-11-25 18:27:21,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:27:21,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:27:21,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:27:21,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:27:21,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:27:21,339 INFO L87 Difference]: Start difference. First operand 17800 states and 25481 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, (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) [2021-11-25 18:27:24,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:27:27,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:27:30,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:27:34,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:27:36,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:27:38,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:27:38,035 INFO L93 Difference]: Finished difference Result 17829 states and 25564 transitions. [2021-11-25 18:27:38,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:27:38,036 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, (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 119 [2021-11-25 18:27:38,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:27:38,115 INFO L225 Difference]: With dead ends: 17829 [2021-11-25 18:27:38,115 INFO L226 Difference]: Without dead ends: 17827 [2021-11-25 18:27:38,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:27:38,128 INFO L933 BasicCegarLoop]: 3409 mSDtfsCounter, 3049 mSDsluCounter, 4994 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3064 SdHoareTripleChecker+Valid, 7905 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:27:38,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3064 Valid, 7905 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 872 Invalid, 4 Unknown, 0 Unchecked, 15.7s Time] [2021-11-25 18:27:38,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17827 states. [2021-11-25 18:27:39,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17827 to 17798. [2021-11-25 18:27:39,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17798 states, 10323 states have (on average 1.2643611353288773) internal successors, (13052), 10778 states have internal predecessors, (13052), 5998 states have call successors, (5998), 1442 states have call predecessors, (5998), 1455 states have return successors, (6429), 5855 states have call predecessors, (6429), 5996 states have call successors, (6429) [2021-11-25 18:27:39,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17798 states to 17798 states and 25479 transitions. [2021-11-25 18:27:39,335 INFO L78 Accepts]: Start accepts. Automaton has 17798 states and 25479 transitions. Word has length 119 [2021-11-25 18:27:39,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:27:39,335 INFO L470 AbstractCegarLoop]: Abstraction has 17798 states and 25479 transitions. [2021-11-25 18:27:39,335 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, (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) [2021-11-25 18:27:39,335 INFO L276 IsEmpty]: Start isEmpty. Operand 17798 states and 25479 transitions. [2021-11-25 18:27:39,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-25 18:27:39,337 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:27:39,337 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:27:39,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-25 18:27:39,338 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:27:39,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:27:39,338 INFO L85 PathProgramCache]: Analyzing trace with hash -600147603, now seen corresponding path program 1 times [2021-11-25 18:27:39,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:27:39,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922272316] [2021-11-25 18:27:39,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:27:39,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:27:39,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:27:39,581 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 18:27:39,581 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:27:39,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922272316] [2021-11-25 18:27:39,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922272316] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:27:39,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:27:39,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:27:39,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373270240] [2021-11-25 18:27:39,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:27:39,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:27:39,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:27:39,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:27:39,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:27:39,586 INFO L87 Difference]: Start difference. First operand 17798 states and 25479 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (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) [2021-11-25 18:27:42,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:27:45,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:27:48,036 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:27:50,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:27:53,166 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:27:54,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:27:54,714 INFO L93 Difference]: Finished difference Result 17827 states and 25562 transitions. [2021-11-25 18:27:54,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:27:54,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (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 124 [2021-11-25 18:27:54,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:27:54,806 INFO L225 Difference]: With dead ends: 17827 [2021-11-25 18:27:54,806 INFO L226 Difference]: Without dead ends: 17825 [2021-11-25 18:27:54,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:27:54,817 INFO L933 BasicCegarLoop]: 3407 mSDtfsCounter, 3046 mSDsluCounter, 4990 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3061 SdHoareTripleChecker+Valid, 7901 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2021-11-25 18:27:54,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3061 Valid, 7901 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 869 Invalid, 5 Unknown, 0 Unchecked, 13.9s Time] [2021-11-25 18:27:54,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17825 states. [2021-11-25 18:27:55,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17825 to 17796. [2021-11-25 18:27:55,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17796 states, 10322 states have (on average 1.2642898663049797) internal successors, (13050), 10776 states have internal predecessors, (13050), 5998 states have call successors, (5998), 1442 states have call predecessors, (5998), 1455 states have return successors, (6429), 5855 states have call predecessors, (6429), 5996 states have call successors, (6429) [2021-11-25 18:27:56,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17796 states to 17796 states and 25477 transitions. [2021-11-25 18:27:56,126 INFO L78 Accepts]: Start accepts. Automaton has 17796 states and 25477 transitions. Word has length 124 [2021-11-25 18:27:56,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:27:56,127 INFO L470 AbstractCegarLoop]: Abstraction has 17796 states and 25477 transitions. [2021-11-25 18:27:56,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (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) [2021-11-25 18:27:56,127 INFO L276 IsEmpty]: Start isEmpty. Operand 17796 states and 25477 transitions. [2021-11-25 18:27:56,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-25 18:27:56,128 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:27:56,129 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:27:56,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-25 18:27:56,129 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:27:56,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:27:56,130 INFO L85 PathProgramCache]: Analyzing trace with hash 855656063, now seen corresponding path program 1 times [2021-11-25 18:27:56,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:27:56,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085027317] [2021-11-25 18:27:56,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:27:56,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:27:56,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:27:56,656 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-11-25 18:27:56,656 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:27:56,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085027317] [2021-11-25 18:27:56,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085027317] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:27:56,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:27:56,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 18:27:56,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527893207] [2021-11-25 18:27:56,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:27:56,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 18:27:56,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:27:56,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 18:27:56,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:27:56,658 INFO L87 Difference]: Start difference. First operand 17796 states and 25477 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-25 18:28:00,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:28:04,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:28:08,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:28:09,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:28:11,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:28:14,072 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:28:20,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:28:23,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:28:24,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:28:24,853 INFO L93 Difference]: Finished difference Result 17825 states and 25560 transitions. [2021-11-25 18:28:24,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 18:28:24,854 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 142 [2021-11-25 18:28:24,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:28:24,937 INFO L225 Difference]: With dead ends: 17825 [2021-11-25 18:28:24,937 INFO L226 Difference]: Without dead ends: 17823 [2021-11-25 18:28:24,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-25 18:28:24,952 INFO L933 BasicCegarLoop]: 3406 mSDtfsCounter, 3037 mSDsluCounter, 11033 mSDsCounter, 0 mSdLazyCounter, 3106 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3056 SdHoareTripleChecker+Valid, 13208 SdHoareTripleChecker+Invalid, 3113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3106 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.9s IncrementalHoareTripleChecker+Time [2021-11-25 18:28:24,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3056 Valid, 13208 Invalid, 3113 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3106 Invalid, 6 Unknown, 0 Unchecked, 26.9s Time] [2021-11-25 18:28:24,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17823 states. [2021-11-25 18:28:26,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17823 to 17794. [2021-11-25 18:28:26,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17794 states, 10321 states have (on average 1.2635403546168007) internal successors, (13041), 10774 states have internal predecessors, (13041), 5998 states have call successors, (5998), 1442 states have call predecessors, (5998), 1455 states have return successors, (6429), 5855 states have call predecessors, (6429), 5996 states have call successors, (6429) [2021-11-25 18:28:26,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17794 states to 17794 states and 25468 transitions. [2021-11-25 18:28:26,250 INFO L78 Accepts]: Start accepts. Automaton has 17794 states and 25468 transitions. Word has length 142 [2021-11-25 18:28:26,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:28:26,251 INFO L470 AbstractCegarLoop]: Abstraction has 17794 states and 25468 transitions. [2021-11-25 18:28:26,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-25 18:28:26,251 INFO L276 IsEmpty]: Start isEmpty. Operand 17794 states and 25468 transitions. [2021-11-25 18:28:26,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-25 18:28:26,253 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:28:26,253 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:28:26,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-25 18:28:26,253 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:28:26,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:28:26,254 INFO L85 PathProgramCache]: Analyzing trace with hash 385145583, now seen corresponding path program 1 times [2021-11-25 18:28:26,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:28:26,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936737617] [2021-11-25 18:28:26,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:28:26,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:28:26,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:28:26,576 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-11-25 18:28:26,576 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:28:26,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936737617] [2021-11-25 18:28:26,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936737617] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:28:26,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:28:26,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:28:26,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112059593] [2021-11-25 18:28:26,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:28:26,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:28:26,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:28:26,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:28:26,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:28:26,580 INFO L87 Difference]: Start difference. First operand 17794 states and 25468 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-25 18:28:29,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:28:31,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:28:36,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:28:38,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:28:40,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:28:40,307 INFO L93 Difference]: Finished difference Result 35560 states and 51397 transitions. [2021-11-25 18:28:40,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:28:40,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 145 [2021-11-25 18:28:40,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:28:40,385 INFO L225 Difference]: With dead ends: 35560 [2021-11-25 18:28:40,385 INFO L226 Difference]: Without dead ends: 17805 [2021-11-25 18:28:40,464 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 [2021-11-25 18:28:40,465 INFO L933 BasicCegarLoop]: 3401 mSDtfsCounter, 3024 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3037 SdHoareTripleChecker+Valid, 4488 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:28:40,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3037 Valid, 4488 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 500 Invalid, 4 Unknown, 0 Unchecked, 12.2s Time] [2021-11-25 18:28:40,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17805 states. [2021-11-25 18:28:41,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17805 to 17776. [2021-11-25 18:28:41,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17776 states, 10304 states have (on average 1.2624223602484472) internal successors, (13008), 10756 states have internal predecessors, (13008), 5998 states have call successors, (5998), 1442 states have call predecessors, (5998), 1455 states have return successors, (6429), 5855 states have call predecessors, (6429), 5996 states have call successors, (6429) [2021-11-25 18:28:41,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17776 states to 17776 states and 25435 transitions. [2021-11-25 18:28:41,658 INFO L78 Accepts]: Start accepts. Automaton has 17776 states and 25435 transitions. Word has length 145 [2021-11-25 18:28:41,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:28:41,658 INFO L470 AbstractCegarLoop]: Abstraction has 17776 states and 25435 transitions. [2021-11-25 18:28:41,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-25 18:28:41,659 INFO L276 IsEmpty]: Start isEmpty. Operand 17776 states and 25435 transitions. [2021-11-25 18:28:41,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-25 18:28:41,663 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:28:41,663 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:28:41,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-25 18:28:41,664 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:28:41,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:28:41,664 INFO L85 PathProgramCache]: Analyzing trace with hash -2019904110, now seen corresponding path program 1 times [2021-11-25 18:28:41,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:28:41,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70468583] [2021-11-25 18:28:41,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:28:41,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:28:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:28:41,888 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 18:28:41,888 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:28:41,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70468583] [2021-11-25 18:28:41,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70468583] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:28:41,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:28:41,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:28:41,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406550649] [2021-11-25 18:28:41,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:28:41,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:28:41,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:28:41,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:28:41,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:28:41,891 INFO L87 Difference]: Start difference. First operand 17776 states and 25435 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, (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) [2021-11-25 18:28:44,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:28:48,609 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:28:49,773 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:28:50,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:28:52,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:28:56,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:28:58,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:29:00,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:29:00,505 INFO L93 Difference]: Finished difference Result 17805 states and 25518 transitions. [2021-11-25 18:29:00,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:29:00,505 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, (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 129 [2021-11-25 18:29:00,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:29:00,564 INFO L225 Difference]: With dead ends: 17805 [2021-11-25 18:29:00,564 INFO L226 Difference]: Without dead ends: 17803 [2021-11-25 18:29:00,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:29:00,572 INFO L933 BasicCegarLoop]: 3398 mSDtfsCounter, 3036 mSDsluCounter, 4983 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3051 SdHoareTripleChecker+Valid, 7883 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:29:00,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3051 Valid, 7883 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 872 Invalid, 4 Unknown, 0 Unchecked, 17.2s Time] [2021-11-25 18:29:00,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17803 states. [2021-11-25 18:29:01,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17803 to 17774. [2021-11-25 18:29:01,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17774 states, 10303 states have (on average 1.2623507716199165) internal successors, (13006), 10754 states have internal predecessors, (13006), 5998 states have call successors, (5998), 1442 states have call predecessors, (5998), 1455 states have return successors, (6429), 5855 states have call predecessors, (6429), 5996 states have call successors, (6429) [2021-11-25 18:29:01,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17774 states to 17774 states and 25433 transitions. [2021-11-25 18:29:01,960 INFO L78 Accepts]: Start accepts. Automaton has 17774 states and 25433 transitions. Word has length 129 [2021-11-25 18:29:01,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:29:01,961 INFO L470 AbstractCegarLoop]: Abstraction has 17774 states and 25433 transitions. [2021-11-25 18:29:01,961 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, (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) [2021-11-25 18:29:01,961 INFO L276 IsEmpty]: Start isEmpty. Operand 17774 states and 25433 transitions. [2021-11-25 18:29:01,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-25 18:29:01,967 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:29:01,967 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:29:01,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-25 18:29:01,968 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:29:01,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:29:01,969 INFO L85 PathProgramCache]: Analyzing trace with hash -2133275168, now seen corresponding path program 1 times [2021-11-25 18:29:01,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:29:01,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828682055] [2021-11-25 18:29:01,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:29:01,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:29:02,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:29:02,201 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 18:29:02,201 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:29:02,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828682055] [2021-11-25 18:29:02,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828682055] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:29:02,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:29:02,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:29:02,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274753450] [2021-11-25 18:29:02,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:29:02,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:29:02,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:29:02,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:29:02,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:29:02,205 INFO L87 Difference]: Start difference. First operand 17774 states and 25433 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, (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) [2021-11-25 18:29:04,889 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:29:07,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:29:10,702 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:29:13,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:29:15,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:29:17,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:29:17,327 INFO L93 Difference]: Finished difference Result 17803 states and 25516 transitions. [2021-11-25 18:29:17,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:29:17,328 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, (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 134 [2021-11-25 18:29:17,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:29:17,383 INFO L225 Difference]: With dead ends: 17803 [2021-11-25 18:29:17,383 INFO L226 Difference]: Without dead ends: 17801 [2021-11-25 18:29:17,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:29:17,391 INFO L933 BasicCegarLoop]: 3396 mSDtfsCounter, 3033 mSDsluCounter, 4981 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3048 SdHoareTripleChecker+Valid, 7879 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:29:17,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3048 Valid, 7879 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 872 Invalid, 4 Unknown, 0 Unchecked, 13.7s Time] [2021-11-25 18:29:17,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17801 states. [2021-11-25 18:29:18,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17801 to 17772. [2021-11-25 18:29:18,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17772 states, 10302 states have (on average 1.26227916909338) internal successors, (13004), 10752 states have internal predecessors, (13004), 5998 states have call successors, (5998), 1442 states have call predecessors, (5998), 1455 states have return successors, (6429), 5855 states have call predecessors, (6429), 5996 states have call successors, (6429) [2021-11-25 18:29:18,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17772 states to 17772 states and 25431 transitions. [2021-11-25 18:29:18,730 INFO L78 Accepts]: Start accepts. Automaton has 17772 states and 25431 transitions. Word has length 134 [2021-11-25 18:29:18,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:29:18,730 INFO L470 AbstractCegarLoop]: Abstraction has 17772 states and 25431 transitions. [2021-11-25 18:29:18,730 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, (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) [2021-11-25 18:29:18,731 INFO L276 IsEmpty]: Start isEmpty. Operand 17772 states and 25431 transitions. [2021-11-25 18:29:18,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-25 18:29:18,734 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:29:18,734 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:29:18,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-25 18:29:18,735 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:29:18,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:29:18,736 INFO L85 PathProgramCache]: Analyzing trace with hash 52749327, now seen corresponding path program 1 times [2021-11-25 18:29:18,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:29:18,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383519438] [2021-11-25 18:29:18,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:29:18,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:29:18,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:29:18,992 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 18:29:18,992 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:29:18,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383519438] [2021-11-25 18:29:18,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383519438] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:29:18,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:29:18,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:29:18,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937478724] [2021-11-25 18:29:18,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:29:18,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:29:18,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:29:18,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:29:18,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:29:18,996 INFO L87 Difference]: Start difference. First operand 17772 states and 25431 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, (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) [2021-11-25 18:29:21,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:29:25,274 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:29:27,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:29:28,234 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:29:31,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:29:34,003 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:29:35,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:29:35,411 INFO L93 Difference]: Finished difference Result 17801 states and 25514 transitions. [2021-11-25 18:29:35,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:29:35,413 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, (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 139 [2021-11-25 18:29:35,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:29:35,461 INFO L225 Difference]: With dead ends: 17801 [2021-11-25 18:29:35,461 INFO L226 Difference]: Without dead ends: 17799 [2021-11-25 18:29:35,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:29:35,467 INFO L933 BasicCegarLoop]: 3394 mSDtfsCounter, 3030 mSDsluCounter, 4979 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3045 SdHoareTripleChecker+Valid, 7875 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:29:35,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3045 Valid, 7875 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 872 Invalid, 4 Unknown, 0 Unchecked, 15.1s Time] [2021-11-25 18:29:35,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17799 states. [2021-11-25 18:29:36,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17799 to 17770. [2021-11-25 18:29:36,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17770 states, 10301 states have (on average 1.2622075526647898) internal successors, (13002), 10750 states have internal predecessors, (13002), 5998 states have call successors, (5998), 1442 states have call predecessors, (5998), 1455 states have return successors, (6429), 5855 states have call predecessors, (6429), 5996 states have call successors, (6429) [2021-11-25 18:29:36,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17770 states to 17770 states and 25429 transitions. [2021-11-25 18:29:36,705 INFO L78 Accepts]: Start accepts. Automaton has 17770 states and 25429 transitions. Word has length 139 [2021-11-25 18:29:36,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:29:36,706 INFO L470 AbstractCegarLoop]: Abstraction has 17770 states and 25429 transitions. [2021-11-25 18:29:36,706 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, (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) [2021-11-25 18:29:36,706 INFO L276 IsEmpty]: Start isEmpty. Operand 17770 states and 25429 transitions. [2021-11-25 18:29:36,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-25 18:29:36,709 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:29:36,710 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:29:36,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-25 18:29:36,710 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:29:36,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:29:36,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1568892097, now seen corresponding path program 1 times [2021-11-25 18:29:36,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:29:36,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610187650] [2021-11-25 18:29:36,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:29:36,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:29:36,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:29:36,948 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 18:29:36,949 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:29:36,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610187650] [2021-11-25 18:29:36,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610187650] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:29:36,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:29:36,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:29:36,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701965976] [2021-11-25 18:29:36,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:29:36,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:29:36,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:29:36,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:29:36,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:29:36,952 INFO L87 Difference]: Start difference. First operand 17770 states and 25429 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, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-25 18:29:39,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:29:43,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:29:45,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:29:48,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:29:50,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:29:52,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:29:52,226 INFO L93 Difference]: Finished difference Result 17799 states and 25512 transitions. [2021-11-25 18:29:52,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:29:52,227 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, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 144 [2021-11-25 18:29:52,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:29:52,290 INFO L225 Difference]: With dead ends: 17799 [2021-11-25 18:29:52,291 INFO L226 Difference]: Without dead ends: 17797 [2021-11-25 18:29:52,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:29:52,301 INFO L933 BasicCegarLoop]: 3392 mSDtfsCounter, 3027 mSDsluCounter, 4975 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3042 SdHoareTripleChecker+Valid, 7871 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:29:52,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3042 Valid, 7871 Invalid, 874 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 869 Invalid, 5 Unknown, 0 Unchecked, 14.0s Time] [2021-11-25 18:29:52,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17797 states. [2021-11-25 18:29:53,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17797 to 17768. [2021-11-25 18:29:53,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17768 states, 10300 states have (on average 1.2621359223300972) internal successors, (13000), 10748 states have internal predecessors, (13000), 5998 states have call successors, (5998), 1442 states have call predecessors, (5998), 1455 states have return successors, (6429), 5855 states have call predecessors, (6429), 5996 states have call successors, (6429) [2021-11-25 18:29:53,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17768 states to 17768 states and 25427 transitions. [2021-11-25 18:29:53,807 INFO L78 Accepts]: Start accepts. Automaton has 17768 states and 25427 transitions. Word has length 144 [2021-11-25 18:29:53,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:29:53,807 INFO L470 AbstractCegarLoop]: Abstraction has 17768 states and 25427 transitions. [2021-11-25 18:29:53,808 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, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-25 18:29:53,808 INFO L276 IsEmpty]: Start isEmpty. Operand 17768 states and 25427 transitions. [2021-11-25 18:29:53,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-25 18:29:53,811 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:29:53,811 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:29:53,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-25 18:29:53,812 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:29:53,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:29:53,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1211088739, now seen corresponding path program 1 times [2021-11-25 18:29:53,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:29:53,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064742573] [2021-11-25 18:29:53,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:29:53,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:29:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:29:54,026 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 18:29:54,026 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:29:54,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064742573] [2021-11-25 18:29:54,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064742573] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:29:54,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:29:54,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:29:54,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012330087] [2021-11-25 18:29:54,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:29:54,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:29:54,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:29:54,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:29:54,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:29:54,030 INFO L87 Difference]: Start difference. First operand 17768 states and 25427 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, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-25 18:29:56,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:29:59,624 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:30:01,684 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:30:02,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:30:06,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:30:09,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:30:10,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:30:10,668 INFO L93 Difference]: Finished difference Result 17797 states and 25510 transitions. [2021-11-25 18:30:10,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:30:10,669 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, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 149 [2021-11-25 18:30:10,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:30:10,733 INFO L225 Difference]: With dead ends: 17797 [2021-11-25 18:30:10,733 INFO L226 Difference]: Without dead ends: 17645 [2021-11-25 18:30:10,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:30:10,750 INFO L933 BasicCegarLoop]: 3383 mSDtfsCounter, 3083 mSDsluCounter, 4865 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3095 SdHoareTripleChecker+Valid, 7764 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:30:10,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3095 Valid, 7764 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 857 Invalid, 4 Unknown, 0 Unchecked, 15.3s Time] [2021-11-25 18:30:10,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17645 states. [2021-11-25 18:30:12,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17645 to 17616. [2021-11-25 18:30:12,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17616 states, 10222 states have (on average 1.2633535511641558) internal successors, (12914), 10664 states have internal predecessors, (12914), 5947 states have call successors, (5947), 1422 states have call predecessors, (5947), 1433 states have return successors, (6374), 5806 states have call predecessors, (6374), 5941 states have call successors, (6374) [2021-11-25 18:30:12,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17616 states to 17616 states and 25235 transitions. [2021-11-25 18:30:12,393 INFO L78 Accepts]: Start accepts. Automaton has 17616 states and 25235 transitions. Word has length 149 [2021-11-25 18:30:12,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:30:12,393 INFO L470 AbstractCegarLoop]: Abstraction has 17616 states and 25235 transitions. [2021-11-25 18:30:12,393 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, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-25 18:30:12,393 INFO L276 IsEmpty]: Start isEmpty. Operand 17616 states and 25235 transitions. [2021-11-25 18:30:12,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-25 18:30:12,396 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:30:12,396 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:30:12,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-25 18:30:12,397 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:30:12,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:30:12,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1873536498, now seen corresponding path program 1 times [2021-11-25 18:30:12,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:30:12,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302023676] [2021-11-25 18:30:12,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:12,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:30:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:30:12,687 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-11-25 18:30:12,687 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:30:12,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302023676] [2021-11-25 18:30:12,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302023676] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:30:12,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:30:12,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:30:12,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136398340] [2021-11-25 18:30:12,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:30:12,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:30:12,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:30:12,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:30:12,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:30:12,691 INFO L87 Difference]: Start difference. First operand 17616 states and 25235 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-25 18:30:15,130 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:30:17,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:30:19,322 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:30:21,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:30:24,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:30:26,723 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:30:30,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:30:30,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:30:30,984 INFO L93 Difference]: Finished difference Result 35204 states and 50471 transitions. [2021-11-25 18:30:30,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:30:30,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 166 [2021-11-25 18:30:30,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:30:31,062 INFO L225 Difference]: With dead ends: 35204 [2021-11-25 18:30:31,063 INFO L226 Difference]: Without dead ends: 17627 [2021-11-25 18:30:31,136 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 [2021-11-25 18:30:31,136 INFO L933 BasicCegarLoop]: 3288 mSDtfsCounter, 2928 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2941 SdHoareTripleChecker+Valid, 4375 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:30:31,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2941 Valid, 4375 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 482 Invalid, 6 Unknown, 0 Unchecked, 16.8s Time] [2021-11-25 18:30:31,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17627 states. [2021-11-25 18:30:32,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17627 to 17598. [2021-11-25 18:30:32,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17598 states, 10205 states have (on average 1.2622243998040177) internal successors, (12881), 10646 states have internal predecessors, (12881), 5947 states have call successors, (5947), 1422 states have call predecessors, (5947), 1433 states have return successors, (6374), 5806 states have call predecessors, (6374), 5941 states have call successors, (6374) [2021-11-25 18:30:32,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17598 states to 17598 states and 25202 transitions. [2021-11-25 18:30:32,474 INFO L78 Accepts]: Start accepts. Automaton has 17598 states and 25202 transitions. Word has length 166 [2021-11-25 18:30:32,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:30:32,475 INFO L470 AbstractCegarLoop]: Abstraction has 17598 states and 25202 transitions. [2021-11-25 18:30:32,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-25 18:30:32,476 INFO L276 IsEmpty]: Start isEmpty. Operand 17598 states and 25202 transitions. [2021-11-25 18:30:32,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-25 18:30:32,479 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:30:32,479 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 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] [2021-11-25 18:30:32,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-25 18:30:32,480 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:30:32,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:30:32,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1587857664, now seen corresponding path program 1 times [2021-11-25 18:30:32,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:30:32,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177849259] [2021-11-25 18:30:32,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:32,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:30:32,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:30:32,979 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2021-11-25 18:30:32,980 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:30:32,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177849259] [2021-11-25 18:30:32,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177849259] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:30:32,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407701711] [2021-11-25 18:30:32,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:32,980 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:30:32,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:30:32,982 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:30:32,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 18:30:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:30:34,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 3931 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 18:30:34,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:30:34,949 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-11-25 18:30:34,949 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:30:34,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407701711] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:30:34,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 18:30:34,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-11-25 18:30:34,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925463082] [2021-11-25 18:30:34,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:30:34,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:30:34,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:30:34,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:30:34,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-25 18:30:34,953 INFO L87 Difference]: Start difference. First operand 17598 states and 25202 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-25 18:30:37,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:30:39,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:30:42,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:30:45,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:30:47,469 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:30:50,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:30:51,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:30:51,580 INFO L93 Difference]: Finished difference Result 35168 states and 50405 transitions. [2021-11-25 18:30:51,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:30:51,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 171 [2021-11-25 18:30:51,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:30:51,712 INFO L225 Difference]: With dead ends: 35168 [2021-11-25 18:30:51,712 INFO L226 Difference]: Without dead ends: 17609 [2021-11-25 18:30:51,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-25 18:30:51,805 INFO L933 BasicCegarLoop]: 3283 mSDtfsCounter, 2887 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2900 SdHoareTripleChecker+Valid, 4370 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:30:51,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2900 Valid, 4370 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 482 Invalid, 5 Unknown, 0 Unchecked, 15.1s Time] [2021-11-25 18:30:51,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17609 states. [2021-11-25 18:30:53,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17609 to 17580. [2021-11-25 18:30:53,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17580 states, 10188 states have (on average 1.2610914801727522) internal successors, (12848), 10628 states have internal predecessors, (12848), 5947 states have call successors, (5947), 1422 states have call predecessors, (5947), 1433 states have return successors, (6374), 5806 states have call predecessors, (6374), 5941 states have call successors, (6374) [2021-11-25 18:30:54,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17580 states to 17580 states and 25169 transitions. [2021-11-25 18:30:54,148 INFO L78 Accepts]: Start accepts. Automaton has 17580 states and 25169 transitions. Word has length 171 [2021-11-25 18:30:54,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:30:54,149 INFO L470 AbstractCegarLoop]: Abstraction has 17580 states and 25169 transitions. [2021-11-25 18:30:54,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-25 18:30:54,150 INFO L276 IsEmpty]: Start isEmpty. Operand 17580 states and 25169 transitions. [2021-11-25 18:30:54,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-11-25 18:30:54,154 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:30:54,155 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-25 18:30:54,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 18:30:54,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-11-25 18:30:54,382 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:30:54,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:30:54,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1269911390, now seen corresponding path program 1 times [2021-11-25 18:30:54,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:30:54,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284777879] [2021-11-25 18:30:54,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:54,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:30:54,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:30:54,734 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2021-11-25 18:30:54,734 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:30:54,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284777879] [2021-11-25 18:30:54,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284777879] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:30:54,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:30:54,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:30:54,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596171941] [2021-11-25 18:30:54,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:30:54,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:30:54,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:30:54,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:30:54,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:30:54,737 INFO L87 Difference]: Start difference. First operand 17580 states and 25169 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-25 18:30:57,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:31:00,621 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:31:04,322 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:31:06,375 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:31:09,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:31:12,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:31:14,945 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:31:16,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:31:16,670 INFO L93 Difference]: Finished difference Result 17771 states and 25381 transitions. [2021-11-25 18:31:16,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 18:31:16,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 225 [2021-11-25 18:31:16,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:31:16,725 INFO L225 Difference]: With dead ends: 17771 [2021-11-25 18:31:16,725 INFO L226 Difference]: Without dead ends: 17769 [2021-11-25 18:31:16,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 18:31:16,734 INFO L933 BasicCegarLoop]: 3284 mSDtfsCounter, 2778 mSDsluCounter, 8587 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2794 SdHoareTripleChecker+Valid, 11021 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:31:16,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2794 Valid, 11021 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1216 Invalid, 6 Unknown, 0 Unchecked, 20.5s Time] [2021-11-25 18:31:16,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17769 states. [2021-11-25 18:31:18,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17769 to 17740. [2021-11-25 18:31:18,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17740 states, 10292 states have (on average 1.2600077730275943) internal successors, (12968), 10732 states have internal predecessors, (12968), 5947 states have call successors, (5947), 1478 states have call predecessors, (5947), 1489 states have return successors, (6374), 5806 states have call predecessors, (6374), 5941 states have call successors, (6374) [2021-11-25 18:31:18,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17740 states to 17740 states and 25289 transitions. [2021-11-25 18:31:18,352 INFO L78 Accepts]: Start accepts. Automaton has 17740 states and 25289 transitions. Word has length 225 [2021-11-25 18:31:18,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:31:18,353 INFO L470 AbstractCegarLoop]: Abstraction has 17740 states and 25289 transitions. [2021-11-25 18:31:18,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-25 18:31:18,353 INFO L276 IsEmpty]: Start isEmpty. Operand 17740 states and 25289 transitions. [2021-11-25 18:31:18,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-25 18:31:18,358 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:31:18,359 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1] [2021-11-25 18:31:18,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-25 18:31:18,359 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:31:18,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:31:18,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1766683422, now seen corresponding path program 1 times [2021-11-25 18:31:18,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:31:18,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931640474] [2021-11-25 18:31:18,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:31:18,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:31:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:31:18,770 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2021-11-25 18:31:18,770 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:31:18,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931640474] [2021-11-25 18:31:18,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931640474] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:31:18,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:31:18,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:31:18,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293779803] [2021-11-25 18:31:18,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:31:18,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:31:18,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:31:18,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:31:18,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:31:18,773 INFO L87 Difference]: Start difference. First operand 17740 states and 25289 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-25 18:31:21,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:31:24,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:31:27,994 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:31:30,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:31:32,084 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:31:35,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:31:37,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:31:39,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:31:43,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:31:43,213 INFO L93 Difference]: Finished difference Result 25791 states and 36832 transitions. [2021-11-25 18:31:43,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 18:31:43,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 214 [2021-11-25 18:31:43,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:31:43,336 INFO L225 Difference]: With dead ends: 25791 [2021-11-25 18:31:43,336 INFO L226 Difference]: Without dead ends: 25789 [2021-11-25 18:31:43,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 18:31:43,348 INFO L933 BasicCegarLoop]: 3788 mSDtfsCounter, 2840 mSDsluCounter, 11507 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2854 SdHoareTripleChecker+Valid, 14251 SdHoareTripleChecker+Invalid, 1420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:31:43,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2854 Valid, 14251 Invalid, 1420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1412 Invalid, 5 Unknown, 0 Unchecked, 22.1s Time] [2021-11-25 18:31:43,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25789 states. [2021-11-25 18:31:45,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25789 to 25679. [2021-11-25 18:31:45,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25679 states, 14886 states have (on average 1.2594383984952304) internal successors, (18748), 15538 states have internal predecessors, (18748), 8611 states have call successors, (8611), 2164 states have call predecessors, (8611), 2170 states have return successors, (9340), 8367 states have call predecessors, (9340), 8605 states have call successors, (9340) [2021-11-25 18:31:45,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25679 states to 25679 states and 36699 transitions. [2021-11-25 18:31:45,856 INFO L78 Accepts]: Start accepts. Automaton has 25679 states and 36699 transitions. Word has length 214 [2021-11-25 18:31:45,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:31:45,857 INFO L470 AbstractCegarLoop]: Abstraction has 25679 states and 36699 transitions. [2021-11-25 18:31:45,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-25 18:31:45,857 INFO L276 IsEmpty]: Start isEmpty. Operand 25679 states and 36699 transitions. [2021-11-25 18:31:45,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-11-25 18:31:45,860 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:31:45,861 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1] [2021-11-25 18:31:45,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-25 18:31:45,861 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_block_genhd_del_gendiskErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:31:45,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:31:45,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1099695494, now seen corresponding path program 1 times [2021-11-25 18:31:45,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:31:45,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106847486] [2021-11-25 18:31:45,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:31:45,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:31:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:31:47,444 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 4 proven. 26 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2021-11-25 18:31:47,445 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:31:47,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106847486] [2021-11-25 18:31:47,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106847486] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:31:47,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566362152] [2021-11-25 18:31:47,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:31:47,446 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:31:47,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:31:47,450 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:31:47,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 18:31:49,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:31:49,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 4176 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-25 18:31:49,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:31:50,191 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2021-11-25 18:31:50,191 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:31:50,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566362152] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:31:50,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 18:31:50,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 16 [2021-11-25 18:31:50,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859265724] [2021-11-25 18:31:50,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:31:50,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-25 18:31:50,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:31:50,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-25 18:31:50,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2021-11-25 18:31:50,194 INFO L87 Difference]: Start difference. First operand 25679 states and 36699 transitions. Second operand has 11 states, 8 states have (on average 11.625) internal successors, (93), 10 states have internal predecessors, (93), 6 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (37), 6 states have call predecessors, (37), 6 states have call successors, (37) [2021-11-25 18:31:56,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:32:00,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:32:02,601 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:32:04,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:32:07,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:32:13,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:32:15,700 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:32:17,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:32:21,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:32:23,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:32:23,822 INFO L93 Difference]: Finished difference Result 56531 states and 81885 transitions. [2021-11-25 18:32:23,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 18:32:23,822 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 11.625) internal successors, (93), 10 states have internal predecessors, (93), 6 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (37), 6 states have call predecessors, (37), 6 states have call successors, (37) Word has length 213 [2021-11-25 18:32:23,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:32:24,032 INFO L225 Difference]: With dead ends: 56531 [2021-11-25 18:32:24,032 INFO L226 Difference]: Without dead ends: 30879 [2021-11-25 18:32:24,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2021-11-25 18:32:24,101 INFO L933 BasicCegarLoop]: 3605 mSDtfsCounter, 989 mSDsluCounter, 34237 mSDsCounter, 0 mSdLazyCounter, 4386 mSolverCounterSat, 758 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 34488 SdHoareTripleChecker+Invalid, 5150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 758 IncrementalHoareTripleChecker+Valid, 4386 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:32:24,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [991 Valid, 34488 Invalid, 5150 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [758 Valid, 4386 Invalid, 6 Unknown, 0 Unchecked, 29.8s Time] [2021-11-25 18:32:24,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30879 states. [2021-11-25 18:32:26,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30879 to 25823. [2021-11-25 18:32:26,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25823 states, 14982 states have (on average 1.2577759978641037) internal successors, (18844), 15634 states have internal predecessors, (18844), 8659 states have call successors, (8659), 2164 states have call predecessors, (8659), 2170 states have return successors, (9388), 8415 states have call predecessors, (9388), 8653 states have call successors, (9388) [2021-11-25 18:32:26,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25823 states to 25823 states and 36891 transitions. [2021-11-25 18:32:26,478 INFO L78 Accepts]: Start accepts. Automaton has 25823 states and 36891 transitions. Word has length 213 [2021-11-25 18:32:26,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:32:26,478 INFO L470 AbstractCegarLoop]: Abstraction has 25823 states and 36891 transitions. [2021-11-25 18:32:26,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 11.625) internal successors, (93), 10 states have internal predecessors, (93), 6 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (37), 6 states have call predecessors, (37), 6 states have call successors, (37) [2021-11-25 18:32:26,479 INFO L276 IsEmpty]: Start isEmpty. Operand 25823 states and 36891 transitions. [2021-11-25 18:32:26,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-25 18:32:26,482 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:32:26,483 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-25 18:32:26,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-25 18:32:26,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-11-25 18:32:26,685 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_lib_find_bit_find_next_bitErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:32:26,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:32:26,685 INFO L85 PathProgramCache]: Analyzing trace with hash -757624595, now seen corresponding path program 1 times [2021-11-25 18:32:26,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:32:26,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839934573] [2021-11-25 18:32:26,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:32:26,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:32:26,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:32:27,292 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-11-25 18:32:27,292 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:32:27,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839934573] [2021-11-25 18:32:27,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839934573] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:32:27,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:32:27,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-25 18:32:27,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542172740] [2021-11-25 18:32:27,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:32:27,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 18:32:27,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:32:27,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 18:32:27,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-25 18:32:27,295 INFO L87 Difference]: Start difference. First operand 25823 states and 36891 transitions. Second operand has 9 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (38), 5 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-25 18:32:32,833 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:32:35,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:32:39,621 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:32:42,304 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:32:44,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:32:47,237 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:32:48,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:32:50,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:32:56,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:32:58,773 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:33:03,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:33:05,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:33:07,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:33:09,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:33:11,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:33:13,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:33:16,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:33:17,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:33:17,765 INFO L93 Difference]: Finished difference Result 54995 states and 79239 transitions. [2021-11-25 18:33:17,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 18:33:17,766 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (38), 5 states have call predecessors, (38), 3 states have call successors, (38) Word has length 217 [2021-11-25 18:33:17,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:33:17,874 INFO L225 Difference]: With dead ends: 54995 [2021-11-25 18:33:17,874 INFO L226 Difference]: Without dead ends: 29211 [2021-11-25 18:33:17,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-25 18:33:17,950 INFO L933 BasicCegarLoop]: 3432 mSDtfsCounter, 188 mSDsluCounter, 26342 mSDsCounter, 0 mSdLazyCounter, 3088 mSolverCounterSat, 1 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 27140 SdHoareTripleChecker+Invalid, 3102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3088 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:33:17,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 27140 Invalid, 3102 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3088 Invalid, 13 Unknown, 0 Unchecked, 47.0s Time] [2021-11-25 18:33:17,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29211 states. [2021-11-25 18:33:20,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29211 to 25919. [2021-11-25 18:33:20,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25919 states, 15042 states have (on average 1.2567477729025396) internal successors, (18904), 15694 states have internal predecessors, (18904), 8671 states have call successors, (8671), 2164 states have call predecessors, (8671), 2194 states have return successors, (9448), 8451 states have call predecessors, (9448), 8665 states have call successors, (9448) [2021-11-25 18:33:20,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25919 states to 25919 states and 37023 transitions. [2021-11-25 18:33:20,766 INFO L78 Accepts]: Start accepts. Automaton has 25919 states and 37023 transitions. Word has length 217 [2021-11-25 18:33:20,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:33:20,766 INFO L470 AbstractCegarLoop]: Abstraction has 25919 states and 37023 transitions. [2021-11-25 18:33:20,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (38), 5 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-25 18:33:20,767 INFO L276 IsEmpty]: Start isEmpty. Operand 25919 states and 37023 transitions. [2021-11-25 18:33:20,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-11-25 18:33:20,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:33:20,771 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-25 18:33:20,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-25 18:33:20,771 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:33:20,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:33:20,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1651833283, now seen corresponding path program 1 times [2021-11-25 18:33:20,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:33:20,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793162830] [2021-11-25 18:33:20,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:33:20,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:33:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:33:21,055 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2021-11-25 18:33:21,055 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:33:21,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793162830] [2021-11-25 18:33:21,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793162830] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:33:21,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:33:21,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:33:21,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647844683] [2021-11-25 18:33:21,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:33:21,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:33:21,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:33:21,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:33:21,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:33:21,058 INFO L87 Difference]: Start difference. First operand 25919 states and 37023 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-25 18:33:24,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:33:27,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:33:29,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:33:31,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:33:33,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:33:34,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:33:38,852 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:33:41,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:33:44,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:33:46,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:33:48,851 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:33:49,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:33:49,865 INFO L93 Difference]: Finished difference Result 25921 states and 37024 transitions. [2021-11-25 18:33:49,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 18:33:49,865 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 244 [2021-11-25 18:33:49,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:33:50,036 INFO L225 Difference]: With dead ends: 25921 [2021-11-25 18:33:50,037 INFO L226 Difference]: Without dead ends: 25919 [2021-11-25 18:33:50,045 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 [2021-11-25 18:33:50,046 INFO L933 BasicCegarLoop]: 3037 mSDtfsCounter, 107 mSDsluCounter, 10044 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 12043 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:33:50,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 12043 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1397 Invalid, 8 Unknown, 0 Unchecked, 26.5s Time] [2021-11-25 18:33:50,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25919 states. [2021-11-25 18:33:52,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25919 to 25919. [2021-11-25 18:33:52,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25919 states, 15042 states have (on average 1.2559500066480522) internal successors, (18892), 15694 states have internal predecessors, (18892), 8671 states have call successors, (8671), 2164 states have call predecessors, (8671), 2194 states have return successors, (9448), 8451 states have call predecessors, (9448), 8665 states have call successors, (9448) [2021-11-25 18:33:52,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25919 states to 25919 states and 37011 transitions. [2021-11-25 18:33:52,564 INFO L78 Accepts]: Start accepts. Automaton has 25919 states and 37011 transitions. Word has length 244 [2021-11-25 18:33:52,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:33:52,565 INFO L470 AbstractCegarLoop]: Abstraction has 25919 states and 37011 transitions. [2021-11-25 18:33:52,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-25 18:33:52,565 INFO L276 IsEmpty]: Start isEmpty. Operand 25919 states and 37011 transitions. [2021-11-25 18:33:52,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-25 18:33:52,569 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:33:52,570 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:33:52,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-25 18:33:52,570 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_linux_lib_find_bit_find_next_bitErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:33:52,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:33:52,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1213656065, now seen corresponding path program 1 times [2021-11-25 18:33:52,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:33:52,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577429659] [2021-11-25 18:33:52,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:33:52,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:33:52,719 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:33:52,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [96943407] [2021-11-25 18:33:52,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:33:52,720 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:33:52,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:33:52,726 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:33:52,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 18:33:54,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:33:54,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 4408 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-25 18:33:54,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:33:55,556 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2021-11-25 18:33:55,556 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:33:55,556 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:33:55,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577429659] [2021-11-25 18:33:55,557 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:33:55,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96943407] [2021-11-25 18:33:55,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96943407] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:33:55,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:33:55,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-25 18:33:55,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861863211] [2021-11-25 18:33:55,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:33:55,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-25 18:33:55,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:33:55,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-25 18:33:55,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-11-25 18:33:55,560 INFO L87 Difference]: Start difference. First operand 25919 states and 37011 transitions. Second operand has 11 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 3 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-25 18:34:02,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:34:04,954 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:34:09,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:34:14,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:34:21,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:34:26,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:34:31,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:34:31,679 INFO L93 Difference]: Finished difference Result 75828 states and 108895 transitions. [2021-11-25 18:34:31,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-25 18:34:31,680 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 3 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) Word has length 234 [2021-11-25 18:34:31,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:34:31,890 INFO L225 Difference]: With dead ends: 75828 [2021-11-25 18:34:31,890 INFO L226 Difference]: Without dead ends: 49928 [2021-11-25 18:34:32,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2021-11-25 18:34:32,173 INFO L933 BasicCegarLoop]: 5148 mSDtfsCounter, 2928 mSDsluCounter, 48982 mSDsCounter, 0 mSdLazyCounter, 5529 mSolverCounterSat, 26 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2947 SdHoareTripleChecker+Valid, 49329 SdHoareTripleChecker+Invalid, 5561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 5529 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:34:32,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2947 Valid, 49329 Invalid, 5561 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 5529 Invalid, 6 Unknown, 0 Unchecked, 30.8s Time] [2021-11-25 18:34:32,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49928 states. [2021-11-25 18:34:37,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49928 to 49717. [2021-11-25 18:34:37,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49717 states, 28833 states have (on average 1.257101238164603) internal successors, (36246), 30131 states have internal predecessors, (36246), 16778 states have call successors, (16778), 4047 states have call predecessors, (16778), 4094 states have return successors, (18432), 16305 states have call predecessors, (18432), 16772 states have call successors, (18432) [2021-11-25 18:34:37,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49717 states to 49717 states and 71456 transitions. [2021-11-25 18:34:37,774 INFO L78 Accepts]: Start accepts. Automaton has 49717 states and 71456 transitions. Word has length 234 [2021-11-25 18:34:37,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:34:37,775 INFO L470 AbstractCegarLoop]: Abstraction has 49717 states and 71456 transitions. [2021-11-25 18:34:37,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 3 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-25 18:34:37,775 INFO L276 IsEmpty]: Start isEmpty. Operand 49717 states and 71456 transitions. [2021-11-25 18:34:37,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-25 18:34:37,782 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:34:37,783 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:34:37,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 18:34:37,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:34:37,984 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_linux_lib_find_bit_find_next_bitErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:34:37,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:34:37,984 INFO L85 PathProgramCache]: Analyzing trace with hash -14561630, now seen corresponding path program 1 times [2021-11-25 18:34:37,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:34:37,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238010547] [2021-11-25 18:34:37,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:34:37,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:34:38,408 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:34:38,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1283952998] [2021-11-25 18:34:38,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:34:38,409 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:34:38,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:34:38,414 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:34:38,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 18:34:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:34:40,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 4451 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 18:34:40,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:34:40,737 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2021-11-25 18:34:40,738 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:34:40,738 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:34:40,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238010547] [2021-11-25 18:34:40,738 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:34:40,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283952998] [2021-11-25 18:34:40,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283952998] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:34:40,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:34:40,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:34:40,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932589625] [2021-11-25 18:34:40,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:34:40,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:34:40,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:34:40,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:34:40,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:34:40,742 INFO L87 Difference]: Start difference. First operand 49717 states and 71456 transitions. Second operand has 5 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-25 18:34:44,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:34:46,752 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:34:51,108 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:34:54,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:34:58,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:35:00,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:35:05,541 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:35:08,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:35:08,865 INFO L93 Difference]: Finished difference Result 99661 states and 143278 transitions. [2021-11-25 18:35:08,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 18:35:08,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 243 [2021-11-25 18:35:08,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:35:09,252 INFO L225 Difference]: With dead ends: 99661 [2021-11-25 18:35:09,252 INFO L226 Difference]: Without dead ends: 50005 [2021-11-25 18:35:09,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:35:09,405 INFO L933 BasicCegarLoop]: 3033 mSDtfsCounter, 9 mSDsluCounter, 10121 mSDsCounter, 0 mSdLazyCounter, 1409 mSolverCounterSat, 5 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 12119 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1409 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:35:09,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 12119 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1409 Invalid, 5 Unknown, 0 Unchecked, 22.4s Time] [2021-11-25 18:35:09,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50005 states. [2021-11-25 18:35:14,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50005 to 49909. [2021-11-25 18:35:14,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49909 states, 28929 states have (on average 1.2562480555843618) internal successors, (36342), 30275 states have internal predecessors, (36342), 16850 states have call successors, (16850), 4071 states have call predecessors, (16850), 4118 states have return successors, (18504), 16329 states have call predecessors, (18504), 16844 states have call successors, (18504) [2021-11-25 18:35:15,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49909 states to 49909 states and 71696 transitions. [2021-11-25 18:35:15,104 INFO L78 Accepts]: Start accepts. Automaton has 49909 states and 71696 transitions. Word has length 243 [2021-11-25 18:35:15,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:35:15,104 INFO L470 AbstractCegarLoop]: Abstraction has 49909 states and 71696 transitions. [2021-11-25 18:35:15,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-25 18:35:15,105 INFO L276 IsEmpty]: Start isEmpty. Operand 49909 states and 71696 transitions. [2021-11-25 18:35:15,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-11-25 18:35:15,114 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:35:15,114 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:35:15,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 18:35:15,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-11-25 18:35:15,315 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_linux_block_genhd_del_gendiskErr0ASSERT_VIOLATIONERROR_FUNCTION === [mtip_put_int_commandErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 18:35:15,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:35:15,318 INFO L85 PathProgramCache]: Analyzing trace with hash -839235020, now seen corresponding path program 1 times [2021-11-25 18:35:15,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:35:15,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223819565] [2021-11-25 18:35:15,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:35:15,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:35:15,488 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:35:15,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [573957930] [2021-11-25 18:35:15,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:35:15,489 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:35:15,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:35:15,490 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:35:15,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_289b4294-cf7b-4455-adcb-6987a4739d5d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 18:35:17,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:35:17,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 4380 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-25 18:35:17,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:35:18,167 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2021-11-25 18:35:18,167 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:35:18,167 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:35:18,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223819565] [2021-11-25 18:35:18,168 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:35:18,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573957930] [2021-11-25 18:35:18,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573957930] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:35:18,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:35:18,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-25 18:35:18,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507473] [2021-11-25 18:35:18,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:35:18,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 18:35:18,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:35:18,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 18:35:18,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-11-25 18:35:18,170 INFO L87 Difference]: Start difference. First operand 49909 states and 71696 transitions. Second operand has 12 states, 9 states have (on average 11.444444444444445) internal successors, (103), 11 states have internal predecessors, (103), 7 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (45), 7 states have call predecessors, (45), 7 states have call successors, (45)