./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--scsi--megaraid.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ac352421032347d7bf5d3bf9ef59e7281826004c82f3c932b159f55f0c829686 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 22:45:57,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 22:45:57,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 22:45:57,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 22:45:57,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 22:45:57,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 22:45:57,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 22:45:57,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 22:45:57,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 22:45:57,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 22:45:57,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 22:45:57,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 22:45:57,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 22:45:57,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 22:45:57,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 22:45:57,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 22:45:57,667 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 22:45:57,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 22:45:57,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 22:45:57,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 22:45:57,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 22:45:57,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 22:45:57,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 22:45:57,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 22:45:57,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 22:45:57,704 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 22:45:57,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 22:45:57,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 22:45:57,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 22:45:57,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 22:45:57,710 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 22:45:57,711 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 22:45:57,713 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 22:45:57,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 22:45:57,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 22:45:57,716 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 22:45:57,717 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 22:45:57,717 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 22:45:57,718 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 22:45:57,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 22:45:57,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 22:45:57,720 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 22:45:57,764 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 22:45:57,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 22:45:57,765 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 22:45:57,765 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 22:45:57,773 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 22:45:57,773 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 22:45:57,773 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 22:45:57,773 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 22:45:57,774 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 22:45:57,774 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 22:45:57,775 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 22:45:57,775 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 22:45:57,775 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 22:45:57,776 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 22:45:57,776 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 22:45:57,776 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 22:45:57,776 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 22:45:57,777 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 22:45:57,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 22:45:57,778 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 22:45:57,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 22:45:57,778 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 22:45:57,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 22:45:57,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 22:45:57,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 22:45:57,779 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 22:45:57,779 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 22:45:57,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 22:45:57,780 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 22:45:57,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:45:57,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 22:45:57,781 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 22:45:57,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 22:45:57,781 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 22:45:57,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 22:45:57,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 22:45:57,782 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 22:45:57,782 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 22:45:57,782 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_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac352421032347d7bf5d3bf9ef59e7281826004c82f3c932b159f55f0c829686 [2021-11-20 22:45:58,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 22:45:58,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 22:45:58,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 22:45:58,089 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 22:45:58,090 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 22:45:58,091 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i [2021-11-20 22:45:58,173 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/data/e1600df7f/c658b6e84cbc4542ae54bc00bf5d1515/FLAGafa3406d5 [2021-11-20 22:45:59,254 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 22:45:59,256 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i [2021-11-20 22:45:59,325 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/data/e1600df7f/c658b6e84cbc4542ae54bc00bf5d1515/FLAGafa3406d5 [2021-11-20 22:45:59,574 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/data/e1600df7f/c658b6e84cbc4542ae54bc00bf5d1515 [2021-11-20 22:45:59,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 22:45:59,578 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 22:45:59,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 22:45:59,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 22:45:59,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 22:45:59,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:45:59" (1/1) ... [2021-11-20 22:45:59,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dff2059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:59, skipping insertion in model container [2021-11-20 22:45:59,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:45:59" (1/1) ... [2021-11-20 22:45:59,592 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 22:45:59,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 22:46:05,299 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[486469,486482] [2021-11-20 22:46:05,301 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[486614,486627] [2021-11-20 22:46:05,302 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[486760,486773] [2021-11-20 22:46:05,302 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[486925,486938] [2021-11-20 22:46:05,303 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[487083,487096] [2021-11-20 22:46:05,303 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[487241,487254] [2021-11-20 22:46:05,303 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[487399,487412] [2021-11-20 22:46:05,304 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[487559,487572] [2021-11-20 22:46:05,304 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[487718,487731] [2021-11-20 22:46:05,305 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[487857,487870] [2021-11-20 22:46:05,305 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[487999,488012] [2021-11-20 22:46:05,306 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[488148,488161] [2021-11-20 22:46:05,306 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[488287,488300] [2021-11-20 22:46:05,307 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[488442,488455] [2021-11-20 22:46:05,307 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[488602,488615] [2021-11-20 22:46:05,308 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[488753,488766] [2021-11-20 22:46:05,308 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[488904,488917] [2021-11-20 22:46:05,309 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[489056,489069] [2021-11-20 22:46:05,309 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[489205,489218] [2021-11-20 22:46:05,310 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[489353,489366] [2021-11-20 22:46:05,310 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[489510,489523] [2021-11-20 22:46:05,311 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[489659,489672] [2021-11-20 22:46:05,311 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[489815,489828] [2021-11-20 22:46:05,312 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[489968,489981] [2021-11-20 22:46:05,312 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[490114,490127] [2021-11-20 22:46:05,313 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[490257,490270] [2021-11-20 22:46:05,313 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[490409,490422] [2021-11-20 22:46:05,314 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[490555,490568] [2021-11-20 22:46:05,314 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[490700,490713] [2021-11-20 22:46:05,315 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[490854,490867] [2021-11-20 22:46:05,315 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[491005,491018] [2021-11-20 22:46:05,315 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[491160,491173] [2021-11-20 22:46:05,316 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[491312,491325] [2021-11-20 22:46:05,316 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[491467,491480] [2021-11-20 22:46:05,317 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[491631,491644] [2021-11-20 22:46:05,317 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[491787,491800] [2021-11-20 22:46:05,318 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[491951,491964] [2021-11-20 22:46:05,318 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[492093,492106] [2021-11-20 22:46:05,319 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[492251,492264] [2021-11-20 22:46:05,319 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[492418,492431] [2021-11-20 22:46:05,320 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[492577,492590] [2021-11-20 22:46:05,320 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[492736,492749] [2021-11-20 22:46:05,321 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[492885,492898] [2021-11-20 22:46:05,321 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[493032,493045] [2021-11-20 22:46:05,322 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[493171,493184] [2021-11-20 22:46:05,322 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[493334,493347] [2021-11-20 22:46:05,334 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[493500,493513] [2021-11-20 22:46:05,335 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[493664,493677] [2021-11-20 22:46:05,336 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[493829,493842] [2021-11-20 22:46:05,336 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[493994,494007] [2021-11-20 22:46:05,337 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[494160,494173] [2021-11-20 22:46:05,337 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[494325,494338] [2021-11-20 22:46:05,338 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[494492,494505] [2021-11-20 22:46:05,338 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[494652,494665] [2021-11-20 22:46:05,339 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[494814,494827] [2021-11-20 22:46:05,339 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[494973,494986] [2021-11-20 22:46:05,340 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[495119,495132] [2021-11-20 22:46:05,340 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[495262,495275] [2021-11-20 22:46:05,341 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[495406,495419] [2021-11-20 22:46:05,341 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[495549,495562] [2021-11-20 22:46:05,342 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[495693,495706] [2021-11-20 22:46:05,342 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[495834,495847] [2021-11-20 22:46:05,343 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[495972,495985] [2021-11-20 22:46:05,343 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[496130,496143] [2021-11-20 22:46:05,344 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[496289,496302] [2021-11-20 22:46:05,344 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[496445,496458] [2021-11-20 22:46:05,345 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[496594,496607] [2021-11-20 22:46:05,345 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[496746,496759] [2021-11-20 22:46:05,346 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[496897,496910] [2021-11-20 22:46:05,346 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[497046,497059] [2021-11-20 22:46:05,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[497198,497211] [2021-11-20 22:46:05,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[497346,497359] [2021-11-20 22:46:05,348 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[497499,497512] [2021-11-20 22:46:05,348 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[497650,497663] [2021-11-20 22:46:05,348 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[497800,497813] [2021-11-20 22:46:05,349 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[497947,497960] [2021-11-20 22:46:05,349 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[498098,498111] [2021-11-20 22:46:05,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[498249,498262] [2021-11-20 22:46:05,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[498397,498410] [2021-11-20 22:46:05,351 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[498563,498576] [2021-11-20 22:46:05,351 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[498732,498745] [2021-11-20 22:46:05,352 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[498899,498912] [2021-11-20 22:46:05,352 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[499067,499080] [2021-11-20 22:46:05,352 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[499217,499230] [2021-11-20 22:46:05,353 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[499364,499377] [2021-11-20 22:46:05,353 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[499525,499538] [2021-11-20 22:46:05,354 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[499695,499708] [2021-11-20 22:46:05,354 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[499857,499870] [2021-11-20 22:46:05,372 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:46:05,410 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 22:46:05,979 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[486469,486482] [2021-11-20 22:46:05,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[486614,486627] [2021-11-20 22:46:05,981 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[486760,486773] [2021-11-20 22:46:05,981 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[486925,486938] [2021-11-20 22:46:05,982 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[487083,487096] [2021-11-20 22:46:05,982 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[487241,487254] [2021-11-20 22:46:05,982 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[487399,487412] [2021-11-20 22:46:05,983 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[487559,487572] [2021-11-20 22:46:05,983 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[487718,487731] [2021-11-20 22:46:05,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[487857,487870] [2021-11-20 22:46:05,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[487999,488012] [2021-11-20 22:46:05,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[488148,488161] [2021-11-20 22:46:05,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[488287,488300] [2021-11-20 22:46:05,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[488442,488455] [2021-11-20 22:46:05,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[488602,488615] [2021-11-20 22:46:05,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[488753,488766] [2021-11-20 22:46:05,987 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[488904,488917] [2021-11-20 22:46:05,987 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[489056,489069] [2021-11-20 22:46:05,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[489205,489218] [2021-11-20 22:46:05,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[489353,489366] [2021-11-20 22:46:05,989 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[489510,489523] [2021-11-20 22:46:05,989 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[489659,489672] [2021-11-20 22:46:05,990 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[489815,489828] [2021-11-20 22:46:05,990 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[489968,489981] [2021-11-20 22:46:05,990 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[490114,490127] [2021-11-20 22:46:05,991 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[490257,490270] [2021-11-20 22:46:05,991 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[490409,490422] [2021-11-20 22:46:05,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[490555,490568] [2021-11-20 22:46:05,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[490700,490713] [2021-11-20 22:46:05,993 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[490854,490867] [2021-11-20 22:46:05,993 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[491005,491018] [2021-11-20 22:46:05,994 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[491160,491173] [2021-11-20 22:46:05,994 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[491312,491325] [2021-11-20 22:46:05,994 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[491467,491480] [2021-11-20 22:46:05,995 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[491631,491644] [2021-11-20 22:46:05,995 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[491787,491800] [2021-11-20 22:46:05,996 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[491951,491964] [2021-11-20 22:46:05,996 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[492093,492106] [2021-11-20 22:46:05,997 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[492251,492264] [2021-11-20 22:46:05,997 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[492418,492431] [2021-11-20 22:46:05,998 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[492577,492590] [2021-11-20 22:46:05,998 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[492736,492749] [2021-11-20 22:46:05,999 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[492885,492898] [2021-11-20 22:46:05,999 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[493032,493045] [2021-11-20 22:46:06,000 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[493171,493184] [2021-11-20 22:46:06,000 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[493334,493347] [2021-11-20 22:46:06,001 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[493500,493513] [2021-11-20 22:46:06,001 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[493664,493677] [2021-11-20 22:46:06,002 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[493829,493842] [2021-11-20 22:46:06,002 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[493994,494007] [2021-11-20 22:46:06,002 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[494160,494173] [2021-11-20 22:46:06,003 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[494325,494338] [2021-11-20 22:46:06,003 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[494492,494505] [2021-11-20 22:46:06,004 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[494652,494665] [2021-11-20 22:46:06,004 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[494814,494827] [2021-11-20 22:46:06,005 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[494973,494986] [2021-11-20 22:46:06,005 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[495119,495132] [2021-11-20 22:46:06,006 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[495262,495275] [2021-11-20 22:46:06,006 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[495406,495419] [2021-11-20 22:46:06,007 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[495549,495562] [2021-11-20 22:46:06,007 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[495693,495706] [2021-11-20 22:46:06,008 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[495834,495847] [2021-11-20 22:46:06,008 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[495972,495985] [2021-11-20 22:46:06,009 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[496130,496143] [2021-11-20 22:46:06,009 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[496289,496302] [2021-11-20 22:46:06,009 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[496445,496458] [2021-11-20 22:46:06,010 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[496594,496607] [2021-11-20 22:46:06,010 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[496746,496759] [2021-11-20 22:46:06,011 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[496897,496910] [2021-11-20 22:46:06,011 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[497046,497059] [2021-11-20 22:46:06,012 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[497198,497211] [2021-11-20 22:46:06,012 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[497346,497359] [2021-11-20 22:46:06,013 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[497499,497512] [2021-11-20 22:46:06,013 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[497650,497663] [2021-11-20 22:46:06,013 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[497800,497813] [2021-11-20 22:46:06,014 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[497947,497960] [2021-11-20 22:46:06,014 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[498098,498111] [2021-11-20 22:46:06,015 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[498249,498262] [2021-11-20 22:46:06,015 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[498397,498410] [2021-11-20 22:46:06,015 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[498563,498576] [2021-11-20 22:46:06,016 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[498732,498745] [2021-11-20 22:46:06,016 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[498899,498912] [2021-11-20 22:46:06,017 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[499067,499080] [2021-11-20 22:46:06,017 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[499217,499230] [2021-11-20 22:46:06,018 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[499364,499377] [2021-11-20 22:46:06,018 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[499525,499538] [2021-11-20 22:46:06,018 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[499695,499708] [2021-11-20 22:46:06,019 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i[499857,499870] [2021-11-20 22:46:06,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:46:06,361 INFO L208 MainTranslator]: Completed translation [2021-11-20 22:46:06,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:06 WrapperNode [2021-11-20 22:46:06,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 22:46:06,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 22:46:06,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 22:46:06,364 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 22:46:06,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:06" (1/1) ... [2021-11-20 22:46:06,507 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:06" (1/1) ... [2021-11-20 22:46:06,829 INFO L137 Inliner]: procedures = 746, calls = 3600, calls flagged for inlining = 396, calls inlined = 313, statements flattened = 8753 [2021-11-20 22:46:06,830 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 22:46:06,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 22:46:06,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 22:46:06,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 22:46:06,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:06" (1/1) ... [2021-11-20 22:46:06,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:06" (1/1) ... [2021-11-20 22:46:06,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:06" (1/1) ... [2021-11-20 22:46:06,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:06" (1/1) ... [2021-11-20 22:46:07,199 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:06" (1/1) ... [2021-11-20 22:46:07,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:06" (1/1) ... [2021-11-20 22:46:07,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:06" (1/1) ... [2021-11-20 22:46:07,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 22:46:07,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 22:46:07,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 22:46:07,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 22:46:07,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:06" (1/1) ... [2021-11-20 22:46:07,332 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:46:07,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:46:07,360 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 22:46:07,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 22:46:07,409 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-20 22:46:07,409 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-20 22:46:07,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2021-11-20 22:46:07,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2021-11-20 22:46:07,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_97 [2021-11-20 22:46:07,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_97 [2021-11-20 22:46:07,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-20 22:46:07,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-20 22:46:07,411 INFO L130 BoogieDeclarations]: Found specification of procedure megaraid_info [2021-11-20 22:46:07,411 INFO L138 BoogieDeclarations]: Found implementation of procedure megaraid_info [2021-11-20 22:46:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure mega_adapinq [2021-11-20 22:46:07,412 INFO L138 BoogieDeclarations]: Found implementation of procedure mega_adapinq [2021-11-20 22:46:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure seq_puts [2021-11-20 22:46:07,413 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_puts [2021-11-20 22:46:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-20 22:46:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-20 22:46:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure mega_free_inquiry [2021-11-20 22:46:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure mega_free_inquiry [2021-11-20 22:46:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure seq_putc [2021-11-20 22:46:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_putc [2021-11-20 22:46:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 22:46:07,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 22:46:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-20 22:46:07,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-20 22:46:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-20 22:46:07,415 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-20 22:46:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure mega_build_sglist [2021-11-20 22:46:07,416 INFO L138 BoogieDeclarations]: Found implementation of procedure mega_build_sglist [2021-11-20 22:46:07,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-20 22:46:07,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-20 22:46:07,416 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-20 22:46:07,416 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-20 22:46:07,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-20 22:46:07,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-20 22:46:07,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-20 22:46:07,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-20 22:46:07,417 INFO L130 BoogieDeclarations]: Found specification of procedure megadev_unlocked_ioctl [2021-11-20 22:46:07,417 INFO L138 BoogieDeclarations]: Found implementation of procedure megadev_unlocked_ioctl [2021-11-20 22:46:07,417 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-20 22:46:07,417 INFO L130 BoogieDeclarations]: Found specification of procedure mega_free_scb [2021-11-20 22:46:07,417 INFO L138 BoogieDeclarations]: Found implementation of procedure mega_free_scb [2021-11-20 22:46:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-20 22:46:07,418 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-20 22:46:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-20 22:46:07,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-20 22:46:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2021-11-20 22:46:07,418 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2021-11-20 22:46:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure megaraid_abort_and_reset [2021-11-20 22:46:07,419 INFO L138 BoogieDeclarations]: Found implementation of procedure megaraid_abort_and_reset [2021-11-20 22:46:07,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 22:46:07,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 22:46:07,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-20 22:46:07,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-20 22:46:07,420 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-20 22:46:07,420 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-20 22:46:07,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 22:46:07,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-20 22:46:07,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-20 22:46:07,420 INFO L130 BoogieDeclarations]: Found specification of procedure issue_scb_block [2021-11-20 22:46:07,421 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_scb_block [2021-11-20 22:46:07,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 22:46:07,421 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-20 22:46:07,421 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-20 22:46:07,421 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-20 22:46:07,421 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-20 22:46:07,421 INFO L130 BoogieDeclarations]: Found specification of procedure mega_free_sgl [2021-11-20 22:46:07,425 INFO L138 BoogieDeclarations]: Found implementation of procedure mega_free_sgl [2021-11-20 22:46:07,425 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2021-11-20 22:46:07,426 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2021-11-20 22:46:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 22:46:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-20 22:46:07,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-20 22:46:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-20 22:46:07,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-20 22:46:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-20 22:46:07,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-20 22:46:07,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 22:46:07,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-20 22:46:07,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-20 22:46:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-20 22:46:07,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-20 22:46:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-20 22:46:07,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-20 22:46:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 22:46:07,433 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 22:46:07,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-20 22:46:07,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-20 22:46:07,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-20 22:46:07,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-20 22:46:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-20 22:46:07,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-20 22:46:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-20 22:46:07,436 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-20 22:46:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure mega_runpendq [2021-11-20 22:46:07,436 INFO L138 BoogieDeclarations]: Found implementation of procedure mega_runpendq [2021-11-20 22:46:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_fs_char_dev__double_registration [2021-11-20 22:46:07,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_fs_char_dev__double_registration [2021-11-20 22:46:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-20 22:46:07,436 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-20 22:46:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-20 22:46:07,437 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-20 22:46:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-20 22:46:07,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-20 22:46:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-20 22:46:07,437 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-20 22:46:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-20 22:46:07,438 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-20 22:46:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-20 22:46:07,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-20 22:46:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_check_return_value_probe [2021-11-20 22:46:07,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_check_return_value_probe [2021-11-20 22:46:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_int_mtx_of_NOT_ARG_SIGN [2021-11-20 22:46:07,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_int_mtx_of_NOT_ARG_SIGN [2021-11-20 22:46:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 22:46:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2021-11-20 22:46:07,439 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2021-11-20 22:46:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_check_return_value_probe [2021-11-20 22:46:07,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_check_return_value_probe [2021-11-20 22:46:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-20 22:46:07,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-20 22:46:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 22:46:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_NOT_ARG_SIGN [2021-11-20 22:46:07,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_NOT_ARG_SIGN [2021-11-20 22:46:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 22:46:07,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 22:46:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-20 22:46:07,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-20 22:46:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure mega_n_to_m [2021-11-20 22:46:07,442 INFO L138 BoogieDeclarations]: Found implementation of procedure mega_n_to_m [2021-11-20 22:46:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 22:46:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 22:46:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 22:46:07,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 22:46:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-20 22:46:07,443 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-20 22:46:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure mega_internal_command [2021-11-20 22:46:07,443 INFO L138 BoogieDeclarations]: Found implementation of procedure mega_internal_command [2021-11-20 22:46:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2021-11-20 22:46:07,443 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2021-11-20 22:46:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-20 22:46:07,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-20 22:46:07,444 INFO L130 BoogieDeclarations]: Found specification of procedure megaraid_shutdown [2021-11-20 22:46:07,444 INFO L138 BoogieDeclarations]: Found implementation of procedure megaraid_shutdown [2021-11-20 22:46:07,444 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-20 22:46:07,444 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-20 22:46:07,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-20 22:46:07,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-20 22:46:07,444 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2021-11-20 22:46:07,445 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2021-11-20 22:46:07,445 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-20 22:46:07,445 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-20 22:46:07,445 INFO L130 BoogieDeclarations]: Found specification of procedure proc_show_rdrv [2021-11-20 22:46:07,445 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_show_rdrv [2021-11-20 22:46:07,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 22:46:07,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 22:46:07,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 22:46:07,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 22:46:07,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 22:46:07,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 22:46:07,446 INFO L130 BoogieDeclarations]: Found specification of procedure mega_allocate_inquiry [2021-11-20 22:46:07,446 INFO L138 BoogieDeclarations]: Found implementation of procedure mega_allocate_inquiry [2021-11-20 22:46:07,446 INFO L130 BoogieDeclarations]: Found specification of procedure free_local_pdev [2021-11-20 22:46:07,446 INFO L138 BoogieDeclarations]: Found implementation of procedure free_local_pdev [2021-11-20 22:46:07,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-20 22:46:07,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-20 22:46:07,447 INFO L130 BoogieDeclarations]: Found specification of procedure proc_show_pdrv [2021-11-20 22:46:07,447 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_show_pdrv [2021-11-20 22:46:07,447 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-11-20 22:46:07,447 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-11-20 22:46:07,447 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2021-11-20 22:46:07,448 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2021-11-20 22:46:07,448 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-11-20 22:46:07,448 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-11-20 22:46:07,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_NOT_ARG_SIGN [2021-11-20 22:46:07,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_NOT_ARG_SIGN [2021-11-20 22:46:07,448 INFO L130 BoogieDeclarations]: Found specification of procedure __megaraid_shutdown [2021-11-20 22:46:07,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __megaraid_shutdown [2021-11-20 22:46:07,449 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-20 22:46:07,449 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-20 22:46:07,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 22:46:07,449 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 22:46:07,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-20 22:46:07,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-20 22:46:07,449 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_sglist [2021-11-20 22:46:07,450 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_sglist [2021-11-20 22:46:07,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-20 22:46:07,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-20 22:46:07,450 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-20 22:46:07,450 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-20 22:46:07,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-20 22:46:07,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-20 22:46:07,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-20 22:46:07,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-20 22:46:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 22:46:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure megaraid_reset [2021-11-20 22:46:07,453 INFO L138 BoogieDeclarations]: Found implementation of procedure megaraid_reset [2021-11-20 22:46:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-20 22:46:07,453 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-20 22:46:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-20 22:46:07,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-20 22:46:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 22:46:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure megaraid_queue [2021-11-20 22:46:07,455 INFO L138 BoogieDeclarations]: Found implementation of procedure megaraid_queue [2021-11-20 22:46:07,456 INFO L130 BoogieDeclarations]: Found specification of procedure megaraid_biosparam [2021-11-20 22:46:07,456 INFO L138 BoogieDeclarations]: Found implementation of procedure megaraid_biosparam [2021-11-20 22:46:07,456 INFO L130 BoogieDeclarations]: Found specification of procedure megaraid_remove_one [2021-11-20 22:46:07,456 INFO L138 BoogieDeclarations]: Found implementation of procedure megaraid_remove_one [2021-11-20 22:46:07,456 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-20 22:46:07,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-20 22:46:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 22:46:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-20 22:46:07,457 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-20 22:46:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-20 22:46:07,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-20 22:46:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-20 22:46:07,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-20 22:46:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-20 22:46:07,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-20 22:46:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-20 22:46:07,458 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-20 22:46:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-20 22:46:07,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-20 22:46:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-20 22:46:07,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-20 22:46:07,459 INFO L130 BoogieDeclarations]: Found specification of procedure seq_write [2021-11-20 22:46:07,459 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_write [2021-11-20 22:46:07,459 INFO L130 BoogieDeclarations]: Found specification of procedure mega_allocate_scb [2021-11-20 22:46:07,459 INFO L138 BoogieDeclarations]: Found implementation of procedure mega_allocate_scb [2021-11-20 22:46:07,459 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-20 22:46:07,459 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-20 22:46:07,459 INFO L130 BoogieDeclarations]: Found specification of procedure make_local_pdev [2021-11-20 22:46:07,459 INFO L138 BoogieDeclarations]: Found implementation of procedure make_local_pdev [2021-11-20 22:46:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-20 22:46:07,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-20 22:46:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-20 22:46:07,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-20 22:46:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-20 22:46:07,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-20 22:46:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-20 22:46:07,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-20 22:46:07,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-20 22:46:07,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-20 22:46:07,461 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-20 22:46:07,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-20 22:46:07,461 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 22:46:07,461 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 22:46:07,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-20 22:46:07,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-20 22:46:07,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 22:46:07,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-20 22:46:07,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-20 22:46:07,462 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-11-20 22:46:07,462 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2021-11-20 22:46:07,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 22:46:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 22:46:07,463 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-20 22:46:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-20 22:46:07,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-20 22:46:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-20 22:46:07,463 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-20 22:46:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-20 22:46:07,464 INFO L130 BoogieDeclarations]: Found specification of procedure mega_rundoneq [2021-11-20 22:46:07,464 INFO L138 BoogieDeclarations]: Found implementation of procedure mega_rundoneq [2021-11-20 22:46:07,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-20 22:46:07,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-20 22:46:07,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-20 22:46:07,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-20 22:46:07,464 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-20 22:46:07,464 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-20 22:46:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 22:46:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-11-20 22:46:07,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-11-20 22:46:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_usb_gadget__chrdev_registration_with_usb_gadget [2021-11-20 22:46:07,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_usb_gadget__chrdev_registration_with_usb_gadget [2021-11-20 22:46:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_megadev_mutex [2021-11-20 22:46:07,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_megadev_mutex [2021-11-20 22:46:07,466 INFO L130 BoogieDeclarations]: Found specification of procedure megaraid_abort [2021-11-20 22:46:07,466 INFO L138 BoogieDeclarations]: Found implementation of procedure megaraid_abort [2021-11-20 22:46:07,466 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2021-11-20 22:46:07,466 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2021-11-20 22:46:08,738 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 22:46:08,745 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 22:46:08,983 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 22:46:11,070 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##192: mega_build_cmd_#res#1.base, mega_build_cmd_#res#1.offset := 0, 0;call ULTIMATE.dealloc(mega_build_cmd_~#seg~0#1.base, mega_build_cmd_~#seg~0#1.offset);havoc mega_build_cmd_~#seg~0#1.base, mega_build_cmd_~#seg~0#1.offset; [2021-11-20 22:46:22,741 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 22:46:24,680 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 22:46:24,681 INFO L301 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-20 22:46:24,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:46:24 BoogieIcfgContainer [2021-11-20 22:46:24,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 22:46:24,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 22:46:24,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 22:46:24,692 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 22:46:24,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:45:59" (1/3) ... [2021-11-20 22:46:24,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b96726c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:46:24, skipping insertion in model container [2021-11-20 22:46:24,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:06" (2/3) ... [2021-11-20 22:46:24,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b96726c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:46:24, skipping insertion in model container [2021-11-20 22:46:24,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:46:24" (3/3) ... [2021-11-20 22:46:24,695 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--scsi--megaraid.ko.cil.i [2021-11-20 22:46:24,700 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 22:46:24,701 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2021-11-20 22:46:24,760 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 22:46:24,766 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 22:46:24,766 INFO L340 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2021-11-20 22:46:24,847 INFO L276 IsEmpty]: Start isEmpty. Operand has 2167 states, 1276 states have (on average 1.3205329153605017) internal successors, (1685), 1368 states have internal predecessors, (1685), 725 states have call successors, (725), 131 states have call predecessors, (725), 130 states have return successors, (718), 708 states have call predecessors, (718), 718 states have call successors, (718) [2021-11-20 22:46:24,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-20 22:46:24,854 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:46:24,855 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:46:24,856 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_fs_char_dev__double_registrationErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-20 22:46:24,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:46:24,866 INFO L85 PathProgramCache]: Analyzing trace with hash 480471242, now seen corresponding path program 1 times [2021-11-20 22:46:24,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:46:24,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299673614] [2021-11-20 22:46:24,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:46:24,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:46:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:46:25,672 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-20 22:46:25,673 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:46:25,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299673614] [2021-11-20 22:46:25,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299673614] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:46:25,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:46:25,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 22:46:25,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376259358] [2021-11-20 22:46:25,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:46:25,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 22:46:25,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:46:25,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 22:46:25,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:46:25,713 INFO L87 Difference]: Start difference. First operand has 2167 states, 1276 states have (on average 1.3205329153605017) internal successors, (1685), 1368 states have internal predecessors, (1685), 725 states have call successors, (725), 131 states have call predecessors, (725), 130 states have return successors, (718), 708 states have call predecessors, (718), 718 states have call successors, (718) Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-20 22:46:27,933 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:46:29,963 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:46:37,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:46:37,437 INFO L93 Difference]: Finished difference Result 5227 states and 7657 transitions. [2021-11-20 22:46:37,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 22:46:37,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 46 [2021-11-20 22:46:37,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:46:37,489 INFO L225 Difference]: With dead ends: 5227 [2021-11-20 22:46:37,490 INFO L226 Difference]: Without dead ends: 3062 [2021-11-20 22:46:37,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 22:46:37,525 INFO L933 BasicCegarLoop]: 3098 mSDtfsCounter, 3066 mSDsluCounter, 8177 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3067 SdHoareTripleChecker+Valid, 10414 SdHoareTripleChecker+Invalid, 1251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2021-11-20 22:46:37,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3067 Valid, 10414 Invalid, 1251 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1245 Invalid, 1 Unknown, 0 Unchecked, 11.3s Time] [2021-11-20 22:46:37,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3062 states. [2021-11-20 22:46:37,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3062 to 3000. [2021-11-20 22:46:37,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3000 states, 1761 states have (on average 1.2776831345826236) internal successors, (2250), 1871 states have internal predecessors, (2250), 1004 states have call successors, (1004), 202 states have call predecessors, (1004), 201 states have return successors, (1002), 989 states have call predecessors, (1002), 1002 states have call successors, (1002) [2021-11-20 22:46:37,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3000 states to 3000 states and 4256 transitions. [2021-11-20 22:46:37,919 INFO L78 Accepts]: Start accepts. Automaton has 3000 states and 4256 transitions. Word has length 46 [2021-11-20 22:46:37,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:46:37,921 INFO L470 AbstractCegarLoop]: Abstraction has 3000 states and 4256 transitions. [2021-11-20 22:46:37,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-20 22:46:37,922 INFO L276 IsEmpty]: Start isEmpty. Operand 3000 states and 4256 transitions. [2021-11-20 22:46:37,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-20 22:46:37,932 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:46:37,932 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:46:37,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 22:46:37,933 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_usb_gadget__chrdev_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-20 22:46:37,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:46:37,937 INFO L85 PathProgramCache]: Analyzing trace with hash 395495126, now seen corresponding path program 1 times [2021-11-20 22:46:37,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:46:37,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285281694] [2021-11-20 22:46:37,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:46:37,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:46:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:46:38,310 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-20 22:46:38,310 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:46:38,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285281694] [2021-11-20 22:46:38,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285281694] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:46:38,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:46:38,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 22:46:38,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936810092] [2021-11-20 22:46:38,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:46:38,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 22:46:38,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:46:38,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 22:46:38,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:46:38,315 INFO L87 Difference]: Start difference. First operand 3000 states and 4256 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-20 22:46:40,961 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:46:43,343 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:46:55,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:46:55,678 INFO L93 Difference]: Finished difference Result 5173 states and 7244 transitions. [2021-11-20 22:46:55,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 22:46:55,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 61 [2021-11-20 22:46:55,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:46:55,728 INFO L225 Difference]: With dead ends: 5173 [2021-11-20 22:46:55,728 INFO L226 Difference]: Without dead ends: 5171 [2021-11-20 22:46:55,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 22:46:55,735 INFO L933 BasicCegarLoop]: 3124 mSDtfsCounter, 1811 mSDsluCounter, 10003 mSDsCounter, 0 mSdLazyCounter, 1465 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1812 SdHoareTripleChecker+Valid, 12042 SdHoareTripleChecker+Invalid, 1467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2021-11-20 22:46:55,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1812 Valid, 12042 Invalid, 1467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1465 Invalid, 1 Unknown, 0 Unchecked, 17.0s Time] [2021-11-20 22:46:55,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5171 states. [2021-11-20 22:46:56,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5171 to 4888. [2021-11-20 22:46:56,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4888 states, 2854 states have (on average 1.2655921513665032) internal successors, (3612), 3027 states have internal predecessors, (3612), 1660 states have call successors, (1660), 341 states have call predecessors, (1660), 340 states have return successors, (1658), 1635 states have call predecessors, (1658), 1658 states have call successors, (1658) [2021-11-20 22:46:56,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4888 states to 4888 states and 6930 transitions. [2021-11-20 22:46:56,057 INFO L78 Accepts]: Start accepts. Automaton has 4888 states and 6930 transitions. Word has length 61 [2021-11-20 22:46:56,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:46:56,057 INFO L470 AbstractCegarLoop]: Abstraction has 4888 states and 6930 transitions. [2021-11-20 22:46:56,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-20 22:46:56,058 INFO L276 IsEmpty]: Start isEmpty. Operand 4888 states and 6930 transitions. [2021-11-20 22:46:56,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-20 22:46:56,065 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:46:56,066 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:46:56,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 22:46:56,066 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-20 22:46:56,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:46:56,067 INFO L85 PathProgramCache]: Analyzing trace with hash 994155557, now seen corresponding path program 1 times [2021-11-20 22:46:56,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:46:56,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994935014] [2021-11-20 22:46:56,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:46:56,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:46:56,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:46:56,435 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 22:46:56,435 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:46:56,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994935014] [2021-11-20 22:46:56,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994935014] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:46:56,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:46:56,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:46:56,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045944641] [2021-11-20 22:46:56,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:46:56,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:46:56,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:46:56,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:46:56,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:46:56,438 INFO L87 Difference]: Start difference. First operand 4888 states and 6930 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 22:46:58,911 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:47:05,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:47:05,721 INFO L93 Difference]: Finished difference Result 7053 states and 9917 transitions. [2021-11-20 22:47:05,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 22:47:05,722 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 63 [2021-11-20 22:47:05,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:47:05,782 INFO L225 Difference]: With dead ends: 7053 [2021-11-20 22:47:05,783 INFO L226 Difference]: Without dead ends: 7051 [2021-11-20 22:47:05,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:47:05,790 INFO L933 BasicCegarLoop]: 3134 mSDtfsCounter, 1787 mSDsluCounter, 6538 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1789 SdHoareTripleChecker+Valid, 8949 SdHoareTripleChecker+Invalid, 1105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-11-20 22:47:05,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1789 Valid, 8949 Invalid, 1105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1103 Invalid, 1 Unknown, 0 Unchecked, 9.0s Time] [2021-11-20 22:47:05,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7051 states. [2021-11-20 22:47:06,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7051 to 6778. [2021-11-20 22:47:06,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6778 states, 3948 states have (on average 1.2596251266464031) internal successors, (4973), 4185 states have internal predecessors, (4973), 2316 states have call successors, (2316), 481 states have call predecessors, (2316), 480 states have return successors, (2323), 2280 states have call predecessors, (2323), 2314 states have call successors, (2323) [2021-11-20 22:47:06,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6778 states to 6778 states and 9612 transitions. [2021-11-20 22:47:06,202 INFO L78 Accepts]: Start accepts. Automaton has 6778 states and 9612 transitions. Word has length 63 [2021-11-20 22:47:06,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:47:06,203 INFO L470 AbstractCegarLoop]: Abstraction has 6778 states and 9612 transitions. [2021-11-20 22:47:06,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 22:47:06,203 INFO L276 IsEmpty]: Start isEmpty. Operand 6778 states and 9612 transitions. [2021-11-20 22:47:06,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-20 22:47:06,205 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:47:06,205 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:47:06,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 22:47:06,206 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-20 22:47:06,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:47:06,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1531048386, now seen corresponding path program 1 times [2021-11-20 22:47:06,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:47:06,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543339686] [2021-11-20 22:47:06,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:47:06,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:47:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:47:06,710 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 22:47:06,710 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:47:06,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543339686] [2021-11-20 22:47:06,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543339686] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:47:06,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:47:06,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-20 22:47:06,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588796086] [2021-11-20 22:47:06,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:47:06,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 22:47:06,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:47:06,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 22:47:06,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-11-20 22:47:06,712 INFO L87 Difference]: Start difference. First operand 6778 states and 9612 transitions. Second operand has 12 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 11 states have internal predecessors, (33), 7 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2021-11-20 22:47:10,135 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:47:13,853 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:47:20,186 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:47:22,207 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:47:31,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:47:31,755 INFO L93 Difference]: Finished difference Result 8851 states and 12474 transitions. [2021-11-20 22:47:31,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 22:47:31,755 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 11 states have internal predecessors, (33), 7 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 66 [2021-11-20 22:47:31,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:47:31,810 INFO L225 Difference]: With dead ends: 8851 [2021-11-20 22:47:31,810 INFO L226 Difference]: Without dead ends: 6837 [2021-11-20 22:47:31,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2021-11-20 22:47:31,826 INFO L933 BasicCegarLoop]: 2680 mSDtfsCounter, 29 mSDsluCounter, 30166 mSDsCounter, 0 mSdLazyCounter, 4557 mSolverCounterSat, 122 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 29267 SdHoareTripleChecker+Invalid, 4681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 4557 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2021-11-20 22:47:31,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 29267 Invalid, 4681 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [122 Valid, 4557 Invalid, 2 Unknown, 0 Unchecked, 24.6s Time] [2021-11-20 22:47:31,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6837 states. [2021-11-20 22:47:32,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6837 to 6805. [2021-11-20 22:47:32,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6805 states, 3963 states have (on average 1.2586424425939944) internal successors, (4988), 4200 states have internal predecessors, (4988), 2328 states have call successors, (2328), 481 states have call predecessors, (2328), 480 states have return successors, (2335), 2292 states have call predecessors, (2335), 2326 states have call successors, (2335) [2021-11-20 22:47:32,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6805 states to 6805 states and 9651 transitions. [2021-11-20 22:47:32,249 INFO L78 Accepts]: Start accepts. Automaton has 6805 states and 9651 transitions. Word has length 66 [2021-11-20 22:47:32,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:47:32,250 INFO L470 AbstractCegarLoop]: Abstraction has 6805 states and 9651 transitions. [2021-11-20 22:47:32,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 11 states have internal predecessors, (33), 7 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2021-11-20 22:47:32,251 INFO L276 IsEmpty]: Start isEmpty. Operand 6805 states and 9651 transitions. [2021-11-20 22:47:32,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-20 22:47:32,253 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:47:32,253 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:47:32,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 22:47:32,253 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-20 22:47:32,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:47:32,254 INFO L85 PathProgramCache]: Analyzing trace with hash 2057442819, now seen corresponding path program 1 times [2021-11-20 22:47:32,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:47:32,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554928260] [2021-11-20 22:47:32,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:47:32,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:47:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:47:32,457 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 22:47:32,457 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:47:32,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554928260] [2021-11-20 22:47:32,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554928260] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:47:32,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:47:32,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:47:32,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408728282] [2021-11-20 22:47:32,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:47:32,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:47:32,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:47:32,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:47:32,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:47:32,515 INFO L87 Difference]: Start difference. First operand 6805 states and 9651 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-20 22:47:34,811 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:47:37,533 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:47:43,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:47:43,812 INFO L93 Difference]: Finished difference Result 7088 states and 9962 transitions. [2021-11-20 22:47:43,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 22:47:43,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 68 [2021-11-20 22:47:43,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:47:43,866 INFO L225 Difference]: With dead ends: 7088 [2021-11-20 22:47:43,867 INFO L226 Difference]: Without dead ends: 7086 [2021-11-20 22:47:43,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:47:43,873 INFO L933 BasicCegarLoop]: 3134 mSDtfsCounter, 1797 mSDsluCounter, 6536 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1799 SdHoareTripleChecker+Valid, 8939 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2021-11-20 22:47:43,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1799 Valid, 8939 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1108 Invalid, 1 Unknown, 0 Unchecked, 11.1s Time] [2021-11-20 22:47:43,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7086 states. [2021-11-20 22:47:44,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7086 to 6830. [2021-11-20 22:47:44,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6830 states, 3978 states have (on average 1.2581699346405228) internal successors, (5005), 4215 states have internal predecessors, (5005), 2334 states have call successors, (2334), 485 states have call predecessors, (2334), 484 states have return successors, (2341), 2298 states have call predecessors, (2341), 2332 states have call successors, (2341) [2021-11-20 22:47:44,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6830 states to 6830 states and 9680 transitions. [2021-11-20 22:47:44,258 INFO L78 Accepts]: Start accepts. Automaton has 6830 states and 9680 transitions. Word has length 68 [2021-11-20 22:47:44,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:47:44,259 INFO L470 AbstractCegarLoop]: Abstraction has 6830 states and 9680 transitions. [2021-11-20 22:47:44,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-20 22:47:44,259 INFO L276 IsEmpty]: Start isEmpty. Operand 6830 states and 9680 transitions. [2021-11-20 22:47:44,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-20 22:47:44,261 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:47:44,261 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:47:44,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 22:47:44,261 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-20 22:47:44,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:47:44,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1541827601, now seen corresponding path program 1 times [2021-11-20 22:47:44,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:47:44,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226461945] [2021-11-20 22:47:44,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:47:44,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:47:44,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:47:44,466 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 22:47:44,466 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:47:44,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226461945] [2021-11-20 22:47:44,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226461945] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:47:44,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:47:44,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:47:44,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830528186] [2021-11-20 22:47:44,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:47:44,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:47:44,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:47:44,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:47:44,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:47:44,468 INFO L87 Difference]: Start difference. First operand 6830 states and 9680 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-20 22:47:46,752 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:47:49,066 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:47:50,841 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:47:51,990 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:47:57,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:47:57,683 INFO L93 Difference]: Finished difference Result 7086 states and 9959 transitions. [2021-11-20 22:47:57,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 22:47:57,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 73 [2021-11-20 22:47:57,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:47:57,720 INFO L225 Difference]: With dead ends: 7086 [2021-11-20 22:47:57,720 INFO L226 Difference]: Without dead ends: 7084 [2021-11-20 22:47:57,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:47:57,726 INFO L933 BasicCegarLoop]: 3134 mSDtfsCounter, 1794 mSDsluCounter, 6536 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1796 SdHoareTripleChecker+Valid, 8939 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2021-11-20 22:47:57,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1796 Valid, 8939 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1108 Invalid, 1 Unknown, 0 Unchecked, 13.0s Time] [2021-11-20 22:47:57,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7084 states. [2021-11-20 22:47:58,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7084 to 6841. [2021-11-20 22:47:58,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6841 states, 3984 states have (on average 1.257781124497992) internal successors, (5011), 4221 states have internal predecessors, (5011), 2337 states have call successors, (2337), 487 states have call predecessors, (2337), 486 states have return successors, (2344), 2301 states have call predecessors, (2344), 2335 states have call successors, (2344) [2021-11-20 22:47:58,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6841 states to 6841 states and 9692 transitions. [2021-11-20 22:47:58,117 INFO L78 Accepts]: Start accepts. Automaton has 6841 states and 9692 transitions. Word has length 73 [2021-11-20 22:47:58,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:47:58,118 INFO L470 AbstractCegarLoop]: Abstraction has 6841 states and 9692 transitions. [2021-11-20 22:47:58,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-20 22:47:58,118 INFO L276 IsEmpty]: Start isEmpty. Operand 6841 states and 9692 transitions. [2021-11-20 22:47:58,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-20 22:47:58,122 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:47:58,122 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:47:58,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 22:47:58,123 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-20 22:47:58,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:47:58,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1919995825, now seen corresponding path program 1 times [2021-11-20 22:47:58,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:47:58,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030138523] [2021-11-20 22:47:58,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:47:58,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:47:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:47:58,326 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 22:47:58,326 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:47:58,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030138523] [2021-11-20 22:47:58,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030138523] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:47:58,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:47:58,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:47:58,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126389908] [2021-11-20 22:47:58,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:47:58,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:47:58,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:47:58,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:47:58,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:47:58,329 INFO L87 Difference]: Start difference. First operand 6841 states and 9692 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-20 22:48:00,401 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:02,441 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:04,983 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:09,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:48:09,711 INFO L93 Difference]: Finished difference Result 6841 states and 9692 transitions. [2021-11-20 22:48:09,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 22:48:09,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 78 [2021-11-20 22:48:09,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:48:09,738 INFO L225 Difference]: With dead ends: 6841 [2021-11-20 22:48:09,738 INFO L226 Difference]: Without dead ends: 6839 [2021-11-20 22:48:09,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:48:09,742 INFO L933 BasicCegarLoop]: 2697 mSDtfsCounter, 3034 mSDsluCounter, 3060 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3036 SdHoareTripleChecker+Valid, 5394 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2021-11-20 22:48:09,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3036 Valid, 5394 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 728 Invalid, 1 Unknown, 0 Unchecked, 11.2s Time] [2021-11-20 22:48:09,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6839 states. [2021-11-20 22:48:10,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6839 to 6839. [2021-11-20 22:48:10,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6839 states, 3983 states have (on average 1.257343710770776) internal successors, (5008), 4219 states have internal predecessors, (5008), 2337 states have call successors, (2337), 487 states have call predecessors, (2337), 486 states have return successors, (2344), 2301 states have call predecessors, (2344), 2335 states have call successors, (2344) [2021-11-20 22:48:10,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6839 states to 6839 states and 9689 transitions. [2021-11-20 22:48:10,149 INFO L78 Accepts]: Start accepts. Automaton has 6839 states and 9689 transitions. Word has length 78 [2021-11-20 22:48:10,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:48:10,150 INFO L470 AbstractCegarLoop]: Abstraction has 6839 states and 9689 transitions. [2021-11-20 22:48:10,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-20 22:48:10,151 INFO L276 IsEmpty]: Start isEmpty. Operand 6839 states and 9689 transitions. [2021-11-20 22:48:10,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-20 22:48:10,153 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:48:10,153 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:48:10,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 22:48:10,154 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-20 22:48:10,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:48:10,155 INFO L85 PathProgramCache]: Analyzing trace with hash 460891415, now seen corresponding path program 1 times [2021-11-20 22:48:10,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:48:10,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621643806] [2021-11-20 22:48:10,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:48:10,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:48:10,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:48:10,371 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 22:48:10,371 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:48:10,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621643806] [2021-11-20 22:48:10,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621643806] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:48:10,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:48:10,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:48:10,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627761179] [2021-11-20 22:48:10,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:48:10,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:48:10,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:48:10,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:48:10,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:48:10,374 INFO L87 Difference]: Start difference. First operand 6839 states and 9689 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-20 22:48:12,636 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:14,963 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:20,417 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:21,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:48:21,815 INFO L93 Difference]: Finished difference Result 7080 states and 9950 transitions. [2021-11-20 22:48:21,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 22:48:21,816 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 83 [2021-11-20 22:48:21,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:48:21,845 INFO L225 Difference]: With dead ends: 7080 [2021-11-20 22:48:21,846 INFO L226 Difference]: Without dead ends: 7078 [2021-11-20 22:48:21,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:48:21,850 INFO L933 BasicCegarLoop]: 3132 mSDtfsCounter, 1788 mSDsluCounter, 6532 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1790 SdHoareTripleChecker+Valid, 8933 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2021-11-20 22:48:21,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1790 Valid, 8933 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1108 Invalid, 1 Unknown, 0 Unchecked, 11.2s Time] [2021-11-20 22:48:21,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7078 states. [2021-11-20 22:48:22,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7078 to 6861. [2021-11-20 22:48:22,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6861 states, 3995 states have (on average 1.2565707133917396) internal successors, (5020), 4231 states have internal predecessors, (5020), 2343 states have call successors, (2343), 491 states have call predecessors, (2343), 490 states have return successors, (2350), 2307 states have call predecessors, (2350), 2341 states have call successors, (2350) [2021-11-20 22:48:22,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6861 states to 6861 states and 9713 transitions. [2021-11-20 22:48:22,239 INFO L78 Accepts]: Start accepts. Automaton has 6861 states and 9713 transitions. Word has length 83 [2021-11-20 22:48:22,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:48:22,240 INFO L470 AbstractCegarLoop]: Abstraction has 6861 states and 9713 transitions. [2021-11-20 22:48:22,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-20 22:48:22,241 INFO L276 IsEmpty]: Start isEmpty. Operand 6861 states and 9713 transitions. [2021-11-20 22:48:22,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-20 22:48:22,243 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:48:22,243 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:48:22,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 22:48:22,243 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_net_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-20 22:48:22,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:48:22,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1814760651, now seen corresponding path program 1 times [2021-11-20 22:48:22,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:48:22,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660704808] [2021-11-20 22:48:22,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:48:22,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:48:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:48:22,448 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-11-20 22:48:22,448 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:48:22,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660704808] [2021-11-20 22:48:22,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660704808] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:48:22,449 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:48:22,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:48:22,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627639841] [2021-11-20 22:48:22,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:48:22,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:48:22,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:48:22,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:48:22,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:48:22,452 INFO L87 Difference]: Start difference. First operand 6861 states and 9713 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-20 22:48:25,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:48:25,981 INFO L93 Difference]: Finished difference Result 13694 states and 19390 transitions. [2021-11-20 22:48:25,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:48:25,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 101 [2021-11-20 22:48:25,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:48:26,012 INFO L225 Difference]: With dead ends: 13694 [2021-11-20 22:48:26,013 INFO L226 Difference]: Without dead ends: 6853 [2021-11-20 22:48:26,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:48:26,050 INFO L933 BasicCegarLoop]: 2693 mSDtfsCounter, 3047 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3047 SdHoareTripleChecker+Valid, 2693 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-20 22:48:26,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3047 Valid, 2693 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-11-20 22:48:26,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6853 states. [2021-11-20 22:48:26,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6853 to 6853. [2021-11-20 22:48:26,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6853 states, 3988 states have (on average 1.2555165496489469) internal successors, (5007), 4223 states have internal predecessors, (5007), 2343 states have call successors, (2343), 491 states have call predecessors, (2343), 490 states have return successors, (2350), 2307 states have call predecessors, (2350), 2341 states have call successors, (2350) [2021-11-20 22:48:26,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6853 states to 6853 states and 9700 transitions. [2021-11-20 22:48:26,456 INFO L78 Accepts]: Start accepts. Automaton has 6853 states and 9700 transitions. Word has length 101 [2021-11-20 22:48:26,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:48:26,457 INFO L470 AbstractCegarLoop]: Abstraction has 6853 states and 9700 transitions. [2021-11-20 22:48:26,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-20 22:48:26,457 INFO L276 IsEmpty]: Start isEmpty. Operand 6853 states and 9700 transitions. [2021-11-20 22:48:26,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-20 22:48:26,460 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:48:26,460 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:48:26,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 22:48:26,461 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-20 22:48:26,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:48:26,461 INFO L85 PathProgramCache]: Analyzing trace with hash -2075100316, now seen corresponding path program 1 times [2021-11-20 22:48:26,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:48:26,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544746174] [2021-11-20 22:48:26,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:48:26,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:48:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:48:26,668 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 22:48:26,668 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:48:26,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544746174] [2021-11-20 22:48:26,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544746174] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:48:26,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:48:26,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:48:26,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714902543] [2021-11-20 22:48:26,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:48:26,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:48:26,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:48:26,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:48:26,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:48:26,671 INFO L87 Difference]: Start difference. First operand 6853 states and 9700 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 22:48:29,061 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:33,187 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:38,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:48:38,530 INFO L93 Difference]: Finished difference Result 7013 states and 9847 transitions. [2021-11-20 22:48:38,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 22:48:38,531 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, (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 88 [2021-11-20 22:48:38,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:48:38,561 INFO L225 Difference]: With dead ends: 7013 [2021-11-20 22:48:38,562 INFO L226 Difference]: Without dead ends: 7011 [2021-11-20 22:48:38,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:48:38,567 INFO L933 BasicCegarLoop]: 3744 mSDtfsCounter, 1777 mSDsluCounter, 7157 mSDsCounter, 0 mSdLazyCounter, 1242 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1779 SdHoareTripleChecker+Valid, 10107 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1242 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2021-11-20 22:48:38,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1779 Valid, 10107 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1242 Invalid, 1 Unknown, 0 Unchecked, 11.6s Time] [2021-11-20 22:48:38,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7011 states. [2021-11-20 22:48:38,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7011 to 6849. [2021-11-20 22:48:38,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6849 states, 3988 states have (on average 1.2552657973921766) internal successors, (5006), 4223 states have internal predecessors, (5006), 2338 states have call successors, (2338), 492 states have call predecessors, (2338), 491 states have return successors, (2345), 2302 states have call predecessors, (2345), 2336 states have call successors, (2345) [2021-11-20 22:48:38,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6849 states to 6849 states and 9689 transitions. [2021-11-20 22:48:38,987 INFO L78 Accepts]: Start accepts. Automaton has 6849 states and 9689 transitions. Word has length 88 [2021-11-20 22:48:38,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:48:38,988 INFO L470 AbstractCegarLoop]: Abstraction has 6849 states and 9689 transitions. [2021-11-20 22:48:38,989 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 22:48:38,989 INFO L276 IsEmpty]: Start isEmpty. Operand 6849 states and 9689 transitions. [2021-11-20 22:48:38,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-20 22:48:38,991 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:48:38,991 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:48:38,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 22:48:38,992 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-20 22:48:38,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:48:38,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1811506112, now seen corresponding path program 1 times [2021-11-20 22:48:38,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:48:38,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824356372] [2021-11-20 22:48:38,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:48:38,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:48:39,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:48:39,175 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 22:48:39,176 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:48:39,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824356372] [2021-11-20 22:48:39,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824356372] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:48:39,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:48:39,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:48:39,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499125902] [2021-11-20 22:48:39,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:48:39,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:48:39,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:48:39,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:48:39,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:48:39,178 INFO L87 Difference]: Start difference. First operand 6849 states and 9689 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-20 22:48:41,484 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:48,609 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:48:50,782 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:48:53,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:48:53,699 INFO L93 Difference]: Finished difference Result 7050 states and 9893 transitions. [2021-11-20 22:48:53,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 22:48:53,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (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 93 [2021-11-20 22:48:53,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:48:53,732 INFO L225 Difference]: With dead ends: 7050 [2021-11-20 22:48:53,732 INFO L226 Difference]: Without dead ends: 7048 [2021-11-20 22:48:53,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:48:53,738 INFO L933 BasicCegarLoop]: 3133 mSDtfsCounter, 1779 mSDsluCounter, 6524 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1781 SdHoareTripleChecker+Valid, 8930 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2021-11-20 22:48:53,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1781 Valid, 8930 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1102 Invalid, 3 Unknown, 0 Unchecked, 14.2s Time] [2021-11-20 22:48:53,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7048 states. [2021-11-20 22:48:54,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7048 to 6931. [2021-11-20 22:48:54,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6931 states, 4038 states have (on average 1.2555720653789004) internal successors, (5070), 4273 states have internal predecessors, (5070), 2354 states have call successors, (2354), 508 states have call predecessors, (2354), 507 states have return successors, (2361), 2318 states have call predecessors, (2361), 2352 states have call successors, (2361) [2021-11-20 22:48:54,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6931 states to 6931 states and 9785 transitions. [2021-11-20 22:48:54,157 INFO L78 Accepts]: Start accepts. Automaton has 6931 states and 9785 transitions. Word has length 93 [2021-11-20 22:48:54,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:48:54,160 INFO L470 AbstractCegarLoop]: Abstraction has 6931 states and 9785 transitions. [2021-11-20 22:48:54,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-20 22:48:54,161 INFO L276 IsEmpty]: Start isEmpty. Operand 6931 states and 9785 transitions. [2021-11-20 22:48:54,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-20 22:48:54,163 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:48:54,163 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] [2021-11-20 22:48:54,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 22:48:54,164 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_usb_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-20 22:48:54,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:48:54,164 INFO L85 PathProgramCache]: Analyzing trace with hash 2140840658, now seen corresponding path program 1 times [2021-11-20 22:48:54,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:48:54,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693483356] [2021-11-20 22:48:54,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:48:54,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:48:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:48:54,487 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-11-20 22:48:54,487 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:48:54,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693483356] [2021-11-20 22:48:54,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693483356] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 22:48:54,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674409854] [2021-11-20 22:48:54,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:48:54,488 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:48:54,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:48:54,492 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:48:54,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 22:48:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:48:55,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 2805 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 22:48:55,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:48:56,089 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-11-20 22:48:56,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 22:48:56,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674409854] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:48:56,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 22:48:56,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2021-11-20 22:48:56,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657389575] [2021-11-20 22:48:56,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:48:56,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:48:56,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:48:56,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:48:56,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-20 22:48:56,092 INFO L87 Difference]: Start difference. First operand 6931 states and 9785 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 22:48:58,355 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:00,586 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:02,350 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:03,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:49:03,878 INFO L93 Difference]: Finished difference Result 14061 states and 19810 transitions. [2021-11-20 22:49:03,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:49:03,879 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 109 [2021-11-20 22:49:03,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:49:03,919 INFO L225 Difference]: With dead ends: 14061 [2021-11-20 22:49:03,919 INFO L226 Difference]: Without dead ends: 7150 [2021-11-20 22:49:03,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-20 22:49:03,962 INFO L933 BasicCegarLoop]: 2784 mSDtfsCounter, 2688 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2688 SdHoareTripleChecker+Valid, 3304 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-11-20 22:49:03,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2688 Valid, 3304 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2021-11-20 22:49:03,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7150 states. [2021-11-20 22:49:04,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7150 to 7144. [2021-11-20 22:49:04,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7144 states, 4162 states have (on average 1.2534839019702066) internal successors, (5217), 4404 states have internal predecessors, (5217), 2408 states have call successors, (2408), 544 states have call predecessors, (2408), 542 states have return successors, (2415), 2370 states have call predecessors, (2415), 2406 states have call successors, (2415) [2021-11-20 22:49:04,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7144 states to 7144 states and 10040 transitions. [2021-11-20 22:49:04,482 INFO L78 Accepts]: Start accepts. Automaton has 7144 states and 10040 transitions. Word has length 109 [2021-11-20 22:49:04,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:49:04,482 INFO L470 AbstractCegarLoop]: Abstraction has 7144 states and 10040 transitions. [2021-11-20 22:49:04,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 22:49:04,483 INFO L276 IsEmpty]: Start isEmpty. Operand 7144 states and 10040 transitions. [2021-11-20 22:49:04,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-20 22:49:04,485 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:49:04,486 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:49:04,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-20 22:49:04,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:49:04,699 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-20 22:49:04,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:49:04,699 INFO L85 PathProgramCache]: Analyzing trace with hash 2139802362, now seen corresponding path program 1 times [2021-11-20 22:49:04,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:49:04,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156550975] [2021-11-20 22:49:04,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:49:04,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:49:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:49:04,904 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 22:49:04,904 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:49:04,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156550975] [2021-11-20 22:49:04,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156550975] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:49:04,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:49:04,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:49:04,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880601307] [2021-11-20 22:49:04,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:49:04,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:49:04,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:49:04,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:49:04,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:49:04,907 INFO L87 Difference]: Start difference. First operand 7144 states and 10040 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-20 22:49:07,192 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:10,335 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:12,380 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:18,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:49:18,151 INFO L93 Difference]: Finished difference Result 7259 states and 10144 transitions. [2021-11-20 22:49:18,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 22:49:18,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 98 [2021-11-20 22:49:18,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:49:18,175 INFO L225 Difference]: With dead ends: 7259 [2021-11-20 22:49:18,175 INFO L226 Difference]: Without dead ends: 7257 [2021-11-20 22:49:18,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:49:18,179 INFO L933 BasicCegarLoop]: 3134 mSDtfsCounter, 1779 mSDsluCounter, 6525 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1781 SdHoareTripleChecker+Valid, 8928 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2021-11-20 22:49:18,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1781 Valid, 8928 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1106 Invalid, 3 Unknown, 0 Unchecked, 12.9s Time] [2021-11-20 22:49:18,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7257 states. [2021-11-20 22:49:18,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7257 to 7151. [2021-11-20 22:49:18,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7151 states, 4167 states have (on average 1.2531797456203504) internal successors, (5222), 4409 states have internal predecessors, (5222), 2409 states have call successors, (2409), 545 states have call predecessors, (2409), 543 states have return successors, (2416), 2371 states have call predecessors, (2416), 2407 states have call successors, (2416) [2021-11-20 22:49:18,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7151 states to 7151 states and 10047 transitions. [2021-11-20 22:49:18,642 INFO L78 Accepts]: Start accepts. Automaton has 7151 states and 10047 transitions. Word has length 98 [2021-11-20 22:49:18,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:49:18,642 INFO L470 AbstractCegarLoop]: Abstraction has 7151 states and 10047 transitions. [2021-11-20 22:49:18,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-20 22:49:18,643 INFO L276 IsEmpty]: Start isEmpty. Operand 7151 states and 10047 transitions. [2021-11-20 22:49:18,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-20 22:49:18,645 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:49:18,645 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:49:18,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 22:49:18,646 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-20 22:49:18,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:49:18,646 INFO L85 PathProgramCache]: Analyzing trace with hash -939123107, now seen corresponding path program 1 times [2021-11-20 22:49:18,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:49:18,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946170327] [2021-11-20 22:49:18,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:49:18,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:49:18,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:49:18,842 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 22:49:18,842 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:49:18,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946170327] [2021-11-20 22:49:18,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946170327] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:49:18,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:49:18,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:49:18,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414530636] [2021-11-20 22:49:18,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:49:18,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:49:18,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:49:18,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:49:18,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:49:18,845 INFO L87 Difference]: Start difference. First operand 7151 states and 10047 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-20 22:49:21,385 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:23,314 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:25,279 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:29,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:49:29,915 INFO L93 Difference]: Finished difference Result 7151 states and 10047 transitions. [2021-11-20 22:49:29,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 22:49:29,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 100 [2021-11-20 22:49:29,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:49:29,944 INFO L225 Difference]: With dead ends: 7151 [2021-11-20 22:49:29,944 INFO L226 Difference]: Without dead ends: 7149 [2021-11-20 22:49:29,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:49:29,950 INFO L933 BasicCegarLoop]: 2690 mSDtfsCounter, 3021 mSDsluCounter, 3053 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3023 SdHoareTripleChecker+Valid, 5380 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2021-11-20 22:49:29,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3023 Valid, 5380 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 728 Invalid, 1 Unknown, 0 Unchecked, 10.7s Time] [2021-11-20 22:49:29,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7149 states. [2021-11-20 22:49:30,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7149 to 7149. [2021-11-20 22:49:30,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7149 states, 4166 states have (on average 1.2522803648583773) internal successors, (5217), 4407 states have internal predecessors, (5217), 2409 states have call successors, (2409), 545 states have call predecessors, (2409), 543 states have return successors, (2416), 2371 states have call predecessors, (2416), 2407 states have call successors, (2416) [2021-11-20 22:49:30,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7149 states to 7149 states and 10042 transitions. [2021-11-20 22:49:30,497 INFO L78 Accepts]: Start accepts. Automaton has 7149 states and 10042 transitions. Word has length 100 [2021-11-20 22:49:30,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:49:30,497 INFO L470 AbstractCegarLoop]: Abstraction has 7149 states and 10042 transitions. [2021-11-20 22:49:30,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-20 22:49:30,498 INFO L276 IsEmpty]: Start isEmpty. Operand 7149 states and 10042 transitions. [2021-11-20 22:49:30,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-20 22:49:30,500 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:49:30,501 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 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] [2021-11-20 22:49:30,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 22:49:30,502 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-20 22:49:30,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:49:30,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1974623645, now seen corresponding path program 1 times [2021-11-20 22:49:30,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:49:30,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890611735] [2021-11-20 22:49:30,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:49:30,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:49:30,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:49:30,775 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-11-20 22:49:30,776 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:49:30,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890611735] [2021-11-20 22:49:30,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890611735] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 22:49:30,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256856545] [2021-11-20 22:49:30,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:49:30,777 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:49:30,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:49:30,778 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:49:30,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 22:49:31,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:49:31,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 2857 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-20 22:49:32,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:49:32,307 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-20 22:49:32,307 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 22:49:32,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256856545] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:49:32,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 22:49:32,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 7 [2021-11-20 22:49:32,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351757642] [2021-11-20 22:49:32,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:49:32,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 22:49:32,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:49:32,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 22:49:32,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 22:49:32,309 INFO L87 Difference]: Start difference. First operand 7149 states and 10042 transitions. Second operand has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-20 22:49:35,044 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:37,088 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:40,013 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:42,073 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:44,111 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:51,965 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:01,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:50:01,872 INFO L93 Difference]: Finished difference Result 9017 states and 12645 transitions. [2021-11-20 22:50:01,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 22:50:01,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 108 [2021-11-20 22:50:01,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:50:01,890 INFO L225 Difference]: With dead ends: 9017 [2021-11-20 22:50:01,890 INFO L226 Difference]: Without dead ends: 7230 [2021-11-20 22:50:01,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-20 22:50:01,898 INFO L933 BasicCegarLoop]: 2698 mSDtfsCounter, 35 mSDsluCounter, 15123 mSDsCounter, 0 mSdLazyCounter, 2503 mSolverCounterSat, 76 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 16016 SdHoareTripleChecker+Invalid, 2582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2503 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.1s IncrementalHoareTripleChecker+Time [2021-11-20 22:50:01,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 16016 Invalid, 2582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2503 Invalid, 3 Unknown, 0 Unchecked, 29.1s Time] [2021-11-20 22:50:01,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7230 states. [2021-11-20 22:50:02,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7230 to 7151. [2021-11-20 22:50:02,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7151 states, 4168 states have (on average 1.2521593090211132) internal successors, (5219), 4409 states have internal predecessors, (5219), 2409 states have call successors, (2409), 545 states have call predecessors, (2409), 543 states have return successors, (2416), 2371 states have call predecessors, (2416), 2407 states have call successors, (2416) [2021-11-20 22:50:02,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7151 states to 7151 states and 10044 transitions. [2021-11-20 22:50:02,352 INFO L78 Accepts]: Start accepts. Automaton has 7151 states and 10044 transitions. Word has length 108 [2021-11-20 22:50:02,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:50:02,352 INFO L470 AbstractCegarLoop]: Abstraction has 7151 states and 10044 transitions. [2021-11-20 22:50:02,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-20 22:50:02,353 INFO L276 IsEmpty]: Start isEmpty. Operand 7151 states and 10044 transitions. [2021-11-20 22:50:02,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-20 22:50:02,354 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:50:02,355 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:50:02,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 22:50:02,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-20 22:50:02,571 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-20 22:50:02,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:50:02,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1123668968, now seen corresponding path program 1 times [2021-11-20 22:50:02,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:50:02,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820824795] [2021-11-20 22:50:02,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:50:02,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:50:02,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:50:02,764 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 22:50:02,764 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:50:02,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820824795] [2021-11-20 22:50:02,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820824795] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:50:02,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:50:02,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:50:02,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379947077] [2021-11-20 22:50:02,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:50:02,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:50:02,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:50:02,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:50:02,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:50:02,767 INFO L87 Difference]: Start difference. First operand 7151 states and 10044 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 22:50:04,578 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:06,609 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:11,753 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:50:13,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:50:13,891 INFO L93 Difference]: Finished difference Result 7154 states and 10048 transitions. [2021-11-20 22:50:13,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 22:50:13,895 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 105 [2021-11-20 22:50:13,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:50:13,916 INFO L225 Difference]: With dead ends: 7154 [2021-11-20 22:50:13,916 INFO L226 Difference]: Without dead ends: 7152 [2021-11-20 22:50:13,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:50:13,921 INFO L933 BasicCegarLoop]: 2692 mSDtfsCounter, 3017 mSDsluCounter, 3056 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3021 SdHoareTripleChecker+Valid, 5386 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2021-11-20 22:50:13,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3021 Valid, 5386 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 726 Invalid, 2 Unknown, 0 Unchecked, 10.8s Time] [2021-11-20 22:50:13,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7152 states. [2021-11-20 22:50:14,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7152 to 7149. [2021-11-20 22:50:14,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7149 states, 4167 states have (on average 1.2514998800095993) internal successors, (5215), 4407 states have internal predecessors, (5215), 2409 states have call successors, (2409), 545 states have call predecessors, (2409), 543 states have return successors, (2416), 2371 states have call predecessors, (2416), 2407 states have call successors, (2416) [2021-11-20 22:50:14,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7149 states to 7149 states and 10040 transitions. [2021-11-20 22:50:14,419 INFO L78 Accepts]: Start accepts. Automaton has 7149 states and 10040 transitions. Word has length 105 [2021-11-20 22:50:14,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:50:14,420 INFO L470 AbstractCegarLoop]: Abstraction has 7149 states and 10040 transitions. [2021-11-20 22:50:14,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 22:50:14,420 INFO L276 IsEmpty]: Start isEmpty. Operand 7149 states and 10040 transitions. [2021-11-20 22:50:14,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-20 22:50:14,423 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:50:14,423 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:50:14,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-20 22:50:14,423 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-20 22:50:14,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:50:14,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1318539542, now seen corresponding path program 1 times [2021-11-20 22:50:14,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:50:14,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727448883] [2021-11-20 22:50:14,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:50:14,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:50:14,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:50:14,587 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 22:50:14,587 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:50:14,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727448883] [2021-11-20 22:50:14,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727448883] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:50:14,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:50:14,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:50:14,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853575313] [2021-11-20 22:50:14,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:50:14,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:50:14,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:50:14,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:50:14,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:50:14,590 INFO L87 Difference]: Start difference. First operand 7149 states and 10040 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-20 22:50:16,862 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:19,669 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:25,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:50:25,993 INFO L93 Difference]: Finished difference Result 7251 states and 10131 transitions. [2021-11-20 22:50:25,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 22:50:25,994 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 110 [2021-11-20 22:50:25,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:50:26,024 INFO L225 Difference]: With dead ends: 7251 [2021-11-20 22:50:26,024 INFO L226 Difference]: Without dead ends: 7249 [2021-11-20 22:50:26,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:50:26,031 INFO L933 BasicCegarLoop]: 3137 mSDtfsCounter, 1763 mSDsluCounter, 6529 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1765 SdHoareTripleChecker+Valid, 8934 SdHoareTripleChecker+Invalid, 1112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2021-11-20 22:50:26,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1765 Valid, 8934 Invalid, 1112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1110 Invalid, 1 Unknown, 0 Unchecked, 11.1s Time] [2021-11-20 22:50:26,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7249 states. [2021-11-20 22:50:26,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7249 to 7159. [2021-11-20 22:50:26,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7159 states, 4173 states have (on average 1.2508986340762043) internal successors, (5220), 4413 states have internal predecessors, (5220), 2411 states have call successors, (2411), 547 states have call predecessors, (2411), 545 states have return successors, (2418), 2373 states have call predecessors, (2418), 2409 states have call successors, (2418) [2021-11-20 22:50:26,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7159 states to 7159 states and 10049 transitions. [2021-11-20 22:50:26,484 INFO L78 Accepts]: Start accepts. Automaton has 7159 states and 10049 transitions. Word has length 110 [2021-11-20 22:50:26,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:50:26,485 INFO L470 AbstractCegarLoop]: Abstraction has 7159 states and 10049 transitions. [2021-11-20 22:50:26,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-20 22:50:26,485 INFO L276 IsEmpty]: Start isEmpty. Operand 7159 states and 10049 transitions. [2021-11-20 22:50:26,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-20 22:50:26,487 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:50:26,487 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:50:26,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-20 22:50:26,488 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-20 22:50:26,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:50:26,488 INFO L85 PathProgramCache]: Analyzing trace with hash -31599274, now seen corresponding path program 1 times [2021-11-20 22:50:26,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:50:26,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25401039] [2021-11-20 22:50:26,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:50:26,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:50:26,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:50:26,653 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 22:50:26,653 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:50:26,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25401039] [2021-11-20 22:50:26,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25401039] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:50:26,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:50:26,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:50:26,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131703936] [2021-11-20 22:50:26,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:50:26,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:50:26,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:50:26,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:50:26,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:50:26,656 INFO L87 Difference]: Start difference. First operand 7159 states and 10049 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 22:50:28,950 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:35,734 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:50:39,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:50:39,170 INFO L93 Difference]: Finished difference Result 7249 states and 10128 transitions. [2021-11-20 22:50:39,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 22:50:39,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 115 [2021-11-20 22:50:39,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:50:39,193 INFO L225 Difference]: With dead ends: 7249 [2021-11-20 22:50:39,193 INFO L226 Difference]: Without dead ends: 7247 [2021-11-20 22:50:39,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:50:39,197 INFO L933 BasicCegarLoop]: 3137 mSDtfsCounter, 1760 mSDsluCounter, 6527 mSDsCounter, 0 mSdLazyCounter, 1107 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1762 SdHoareTripleChecker+Valid, 8934 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1107 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2021-11-20 22:50:39,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1762 Valid, 8934 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1107 Invalid, 2 Unknown, 0 Unchecked, 12.1s Time] [2021-11-20 22:50:39,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7247 states. [2021-11-20 22:50:39,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7247 to 7164. [2021-11-20 22:50:39,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7164 states, 4176 states have (on average 1.2504789272030652) internal successors, (5222), 4416 states have internal predecessors, (5222), 2412 states have call successors, (2412), 548 states have call predecessors, (2412), 546 states have return successors, (2419), 2374 states have call predecessors, (2419), 2410 states have call successors, (2419) [2021-11-20 22:50:39,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7164 states to 7164 states and 10053 transitions. [2021-11-20 22:50:39,739 INFO L78 Accepts]: Start accepts. Automaton has 7164 states and 10053 transitions. Word has length 115 [2021-11-20 22:50:39,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:50:39,740 INFO L470 AbstractCegarLoop]: Abstraction has 7164 states and 10053 transitions. [2021-11-20 22:50:39,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 22:50:39,740 INFO L276 IsEmpty]: Start isEmpty. Operand 7164 states and 10053 transitions. [2021-11-20 22:50:39,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-20 22:50:39,742 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:50:39,743 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:50:39,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-20 22:50:39,743 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-20 22:50:39,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:50:39,744 INFO L85 PathProgramCache]: Analyzing trace with hash -118148981, now seen corresponding path program 1 times [2021-11-20 22:50:39,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:50:39,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175337843] [2021-11-20 22:50:39,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:50:39,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:50:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:50:40,011 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2021-11-20 22:50:40,011 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:50:40,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175337843] [2021-11-20 22:50:40,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175337843] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 22:50:40,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795157532] [2021-11-20 22:50:40,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:50:40,012 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:50:40,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:50:40,015 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:50:40,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe364d7-b834-4994-bff1-41795141b5bd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 22:50:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:50:41,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 3010 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-20 22:50:41,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:50:41,876 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 98 proven. 2 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2021-11-20 22:50:41,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 22:50:42,764 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 4 proven. 20 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-11-20 22:50:42,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795157532] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 22:50:42,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [869672260] [2021-11-20 22:50:42,789 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2021-11-20 22:50:42,789 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 22:50:42,795 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 22:50:42,801 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 22:50:42,801 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 22:50:56,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 496 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 161 [2021-11-20 22:51:02,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 20 select indices, 20 select index equivalence classes, 210 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 0 case distinctions, treesize of input 785 treesize of output 666 [2021-11-20 22:51:10,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-20 22:51:11,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 109 [2021-11-20 22:51:17,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 496 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 161 [2021-11-20 22:51:20,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 496 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 161 [2021-11-20 22:51:25,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-20 22:51:26,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 103 [2021-11-20 22:51:28,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-20 22:51:38,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-20 22:51:45,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-20 22:51:46,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-20 22:51:49,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21