./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--md--raid456.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_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/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_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/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_db3e6f19-4385-4588-b4e2-613423e3d781/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 44a365b0a9ab0c087a7fd95686a95a7a3d5f7a279cab683ec4e216584d2b370f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:32:30,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:32:30,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:32:30,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:32:30,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:32:30,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:32:30,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:32:30,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:32:30,236 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:32:30,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:32:30,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:32:30,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:32:30,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:32:30,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:32:30,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:32:30,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:32:30,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:32:30,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:32:30,250 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:32:30,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:32:30,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:32:30,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:32:30,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:32:30,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:32:30,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:32:30,283 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:32:30,283 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:32:30,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:32:30,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:32:30,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:32:30,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:32:30,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:32:30,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:32:30,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:32:30,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:32:30,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:32:30,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:32:30,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:32:30,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:32:30,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:32:30,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:32:30,297 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 23:32:30,346 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:32:30,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:32:30,346 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:32:30,347 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:32:30,347 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:32:30,347 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:32:30,348 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:32:30,348 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:32:30,348 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:32:30,348 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:32:30,348 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:32:30,349 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:32:30,349 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:32:30,349 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:32:30,349 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:32:30,350 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:32:30,350 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:32:30,350 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:32:30,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:32:30,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:32:30,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:32:30,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:32:30,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:32:30,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:32:30,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:32:30,355 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:32:30,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:32:30,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:32:30,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:32:30,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:32:30,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:32:30,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:32:30,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:32:30,358 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:32:30,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:32:30,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:32:30,369 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:32:30,369 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:32:30,369 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_db3e6f19-4385-4588-b4e2-613423e3d781/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44a365b0a9ab0c087a7fd95686a95a7a3d5f7a279cab683ec4e216584d2b370f [2021-11-20 23:32:30,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:32:30,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:32:30,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:32:30,693 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:32:30,693 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:32:30,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i [2021-11-20 23:32:30,769 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/data/6df2bda3c/7fcd739083d942a2b09000176bf8ab20/FLAGb2ec1321c [2021-11-20 23:32:31,898 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:32:31,899 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i [2021-11-20 23:32:32,022 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/data/6df2bda3c/7fcd739083d942a2b09000176bf8ab20/FLAGb2ec1321c [2021-11-20 23:32:32,080 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/data/6df2bda3c/7fcd739083d942a2b09000176bf8ab20 [2021-11-20 23:32:32,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:32:32,085 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:32:32,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:32:32,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:32:32,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:32:32,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:32:32" (1/1) ... [2021-11-20 23:32:32,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e3581a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:32, skipping insertion in model container [2021-11-20 23:32:32,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:32:32" (1/1) ... [2021-11-20 23:32:32,103 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:32:32,412 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:32:42,323 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773190,773203] [2021-11-20 23:32:42,326 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773335,773348] [2021-11-20 23:32:42,327 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773481,773494] [2021-11-20 23:32:42,327 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773646,773659] [2021-11-20 23:32:42,328 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773804,773817] [2021-11-20 23:32:42,328 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773962,773975] [2021-11-20 23:32:42,329 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774120,774133] [2021-11-20 23:32:42,329 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774280,774293] [2021-11-20 23:32:42,330 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774439,774452] [2021-11-20 23:32:42,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774578,774591] [2021-11-20 23:32:42,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774720,774733] [2021-11-20 23:32:42,332 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774869,774882] [2021-11-20 23:32:42,332 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775008,775021] [2021-11-20 23:32:42,333 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775163,775176] [2021-11-20 23:32:42,333 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775323,775336] [2021-11-20 23:32:42,334 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775474,775487] [2021-11-20 23:32:42,335 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775625,775638] [2021-11-20 23:32:42,335 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775777,775790] [2021-11-20 23:32:42,336 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775926,775939] [2021-11-20 23:32:42,336 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776074,776087] [2021-11-20 23:32:42,337 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776231,776244] [2021-11-20 23:32:42,337 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776380,776393] [2021-11-20 23:32:42,338 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776536,776549] [2021-11-20 23:32:42,338 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776689,776702] [2021-11-20 23:32:42,339 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776835,776848] [2021-11-20 23:32:42,339 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776978,776991] [2021-11-20 23:32:42,340 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777130,777143] [2021-11-20 23:32:42,341 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777276,777289] [2021-11-20 23:32:42,341 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777421,777434] [2021-11-20 23:32:42,342 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777575,777588] [2021-11-20 23:32:42,342 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777726,777739] [2021-11-20 23:32:42,343 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777881,777894] [2021-11-20 23:32:42,343 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778033,778046] [2021-11-20 23:32:42,344 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778188,778201] [2021-11-20 23:32:42,344 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778352,778365] [2021-11-20 23:32:42,345 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778508,778521] [2021-11-20 23:32:42,345 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778672,778685] [2021-11-20 23:32:42,346 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778814,778827] [2021-11-20 23:32:42,346 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778972,778985] [2021-11-20 23:32:42,347 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779139,779152] [2021-11-20 23:32:42,347 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779298,779311] [2021-11-20 23:32:42,348 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779457,779470] [2021-11-20 23:32:42,348 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779606,779619] [2021-11-20 23:32:42,349 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779753,779766] [2021-11-20 23:32:42,349 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779892,779905] [2021-11-20 23:32:42,350 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780055,780068] [2021-11-20 23:32:42,350 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780221,780234] [2021-11-20 23:32:42,351 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780385,780398] [2021-11-20 23:32:42,351 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780550,780563] [2021-11-20 23:32:42,352 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780715,780728] [2021-11-20 23:32:42,353 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780881,780894] [2021-11-20 23:32:42,353 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781046,781059] [2021-11-20 23:32:42,353 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781213,781226] [2021-11-20 23:32:42,354 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781373,781386] [2021-11-20 23:32:42,355 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781535,781548] [2021-11-20 23:32:42,355 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781694,781707] [2021-11-20 23:32:42,356 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781840,781853] [2021-11-20 23:32:42,356 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781983,781996] [2021-11-20 23:32:42,357 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782127,782140] [2021-11-20 23:32:42,357 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782270,782283] [2021-11-20 23:32:42,358 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782414,782427] [2021-11-20 23:32:42,358 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782555,782568] [2021-11-20 23:32:42,359 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782693,782706] [2021-11-20 23:32:42,359 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782851,782864] [2021-11-20 23:32:42,360 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783010,783023] [2021-11-20 23:32:42,360 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783166,783179] [2021-11-20 23:32:42,361 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783315,783328] [2021-11-20 23:32:42,361 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783467,783480] [2021-11-20 23:32:42,362 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783618,783631] [2021-11-20 23:32:42,362 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783767,783780] [2021-11-20 23:32:42,363 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783919,783932] [2021-11-20 23:32:42,363 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784067,784080] [2021-11-20 23:32:42,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784220,784233] [2021-11-20 23:32:42,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784371,784384] [2021-11-20 23:32:42,365 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784521,784534] [2021-11-20 23:32:42,365 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784668,784681] [2021-11-20 23:32:42,366 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784819,784832] [2021-11-20 23:32:42,366 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784970,784983] [2021-11-20 23:32:42,367 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785118,785131] [2021-11-20 23:32:42,367 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785284,785297] [2021-11-20 23:32:42,368 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785453,785466] [2021-11-20 23:32:42,368 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785620,785633] [2021-11-20 23:32:42,369 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785788,785801] [2021-11-20 23:32:42,369 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785938,785951] [2021-11-20 23:32:42,369 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[786085,786098] [2021-11-20 23:32:42,370 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[786246,786259] [2021-11-20 23:32:42,370 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[786416,786429] [2021-11-20 23:32:42,371 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[786578,786591] [2021-11-20 23:32:42,402 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:32:42,424 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:32:43,330 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773190,773203] [2021-11-20 23:32:43,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773335,773348] [2021-11-20 23:32:43,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773481,773494] [2021-11-20 23:32:43,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773646,773659] [2021-11-20 23:32:43,332 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773804,773817] [2021-11-20 23:32:43,332 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773962,773975] [2021-11-20 23:32:43,332 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774120,774133] [2021-11-20 23:32:43,333 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774280,774293] [2021-11-20 23:32:43,333 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774439,774452] [2021-11-20 23:32:43,333 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774578,774591] [2021-11-20 23:32:43,334 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774720,774733] [2021-11-20 23:32:43,334 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774869,774882] [2021-11-20 23:32:43,335 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775008,775021] [2021-11-20 23:32:43,336 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775163,775176] [2021-11-20 23:32:43,336 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775323,775336] [2021-11-20 23:32:43,336 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775474,775487] [2021-11-20 23:32:43,337 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775625,775638] [2021-11-20 23:32:43,337 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775777,775790] [2021-11-20 23:32:43,337 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775926,775939] [2021-11-20 23:32:43,338 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776074,776087] [2021-11-20 23:32:43,338 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776231,776244] [2021-11-20 23:32:43,338 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776380,776393] [2021-11-20 23:32:43,339 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776536,776549] [2021-11-20 23:32:43,340 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776689,776702] [2021-11-20 23:32:43,340 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776835,776848] [2021-11-20 23:32:43,340 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776978,776991] [2021-11-20 23:32:43,341 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777130,777143] [2021-11-20 23:32:43,342 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777276,777289] [2021-11-20 23:32:43,342 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777421,777434] [2021-11-20 23:32:43,342 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777575,777588] [2021-11-20 23:32:43,343 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777726,777739] [2021-11-20 23:32:43,343 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777881,777894] [2021-11-20 23:32:43,344 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778033,778046] [2021-11-20 23:32:43,345 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778188,778201] [2021-11-20 23:32:43,345 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778352,778365] [2021-11-20 23:32:43,345 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778508,778521] [2021-11-20 23:32:43,346 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778672,778685] [2021-11-20 23:32:43,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778814,778827] [2021-11-20 23:32:43,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778972,778985] [2021-11-20 23:32:43,348 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779139,779152] [2021-11-20 23:32:43,348 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779298,779311] [2021-11-20 23:32:43,349 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779457,779470] [2021-11-20 23:32:43,349 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779606,779619] [2021-11-20 23:32:43,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779753,779766] [2021-11-20 23:32:43,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779892,779905] [2021-11-20 23:32:43,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780055,780068] [2021-11-20 23:32:43,351 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780221,780234] [2021-11-20 23:32:43,351 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780385,780398] [2021-11-20 23:32:43,352 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780550,780563] [2021-11-20 23:32:43,352 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780715,780728] [2021-11-20 23:32:43,353 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780881,780894] [2021-11-20 23:32:43,353 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781046,781059] [2021-11-20 23:32:43,354 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_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781213,781226] [2021-11-20 23:32:43,355 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781373,781386] [2021-11-20 23:32:43,355 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781535,781548] [2021-11-20 23:32:43,356 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781694,781707] [2021-11-20 23:32:43,360 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781840,781853] [2021-11-20 23:32:43,360 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781983,781996] [2021-11-20 23:32:43,361 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782127,782140] [2021-11-20 23:32:43,361 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782270,782283] [2021-11-20 23:32:43,363 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782414,782427] [2021-11-20 23:32:43,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782555,782568] [2021-11-20 23:32:43,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782693,782706] [2021-11-20 23:32:43,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782851,782864] [2021-11-20 23:32:43,365 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783010,783023] [2021-11-20 23:32:43,373 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783166,783179] [2021-11-20 23:32:43,373 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783315,783328] [2021-11-20 23:32:43,374 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783467,783480] [2021-11-20 23:32:43,374 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783618,783631] [2021-11-20 23:32:43,374 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783767,783780] [2021-11-20 23:32:43,375 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783919,783932] [2021-11-20 23:32:43,375 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784067,784080] [2021-11-20 23:32:43,375 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784220,784233] [2021-11-20 23:32:43,376 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784371,784384] [2021-11-20 23:32:43,376 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784521,784534] [2021-11-20 23:32:43,376 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784668,784681] [2021-11-20 23:32:43,377 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784819,784832] [2021-11-20 23:32:43,377 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784970,784983] [2021-11-20 23:32:43,377 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785118,785131] [2021-11-20 23:32:43,378 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785284,785297] [2021-11-20 23:32:43,378 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785453,785466] [2021-11-20 23:32:43,378 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785620,785633] [2021-11-20 23:32:43,378 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785788,785801] [2021-11-20 23:32:43,379 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785938,785951] [2021-11-20 23:32:43,379 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[786085,786098] [2021-11-20 23:32:43,379 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[786246,786259] [2021-11-20 23:32:43,380 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[786416,786429] [2021-11-20 23:32:43,380 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[786578,786591] [2021-11-20 23:32:43,390 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:32:43,824 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:32:43,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:43 WrapperNode [2021-11-20 23:32:43,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:32:43,826 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:32:43,826 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:32:43,826 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:32:43,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:43" (1/1) ... [2021-11-20 23:32:44,074 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:43" (1/1) ... [2021-11-20 23:32:44,407 INFO L137 Inliner]: procedures = 931, calls = 6987, calls flagged for inlining = 417, calls inlined = 280, statements flattened = 10912 [2021-11-20 23:32:44,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:32:44,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:32:44,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:32:44,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:32:44,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:43" (1/1) ... [2021-11-20 23:32:44,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:43" (1/1) ... [2021-11-20 23:32:44,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:43" (1/1) ... [2021-11-20 23:32:44,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:43" (1/1) ... [2021-11-20 23:32:44,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:43" (1/1) ... [2021-11-20 23:32:44,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:43" (1/1) ... [2021-11-20 23:32:44,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:43" (1/1) ... [2021-11-20 23:32:45,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:32:45,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:32:45,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:32:45,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:32:45,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:43" (1/1) ... [2021-11-20 23:32:45,015 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:32:45,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:32:45,044 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:32:45,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:32:45,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2021-11-20 23:32:45,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2021-11-20 23:32:45,095 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_thread_groups [2021-11-20 23:32:45,096 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_thread_groups [2021-11-20 23:32:45,096 INFO L130 BoogieDeclarations]: Found specification of procedure bio_endio [2021-11-20 23:32:45,096 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_endio [2021-11-20 23:32:45,096 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_create [2021-11-20 23:32:45,096 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_create [2021-11-20 23:32:45,096 INFO L130 BoogieDeclarations]: Found specification of procedure sync_request [2021-11-20 23:32:45,097 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_request [2021-11-20 23:32:45,097 INFO L130 BoogieDeclarations]: Found specification of procedure get_active_stripe [2021-11-20 23:32:45,097 INFO L138 BoogieDeclarations]: Found implementation of procedure get_active_stripe [2021-11-20 23:32:45,097 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-11-20 23:32:45,097 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-11-20 23:32:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_remove_disk [2021-11-20 23:32:45,098 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_remove_disk [2021-11-20 23:32:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-20 23:32:45,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-20 23:32:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-11-20 23:32:45,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-11-20 23:32:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-20 23:32:45,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-20 23:32:45,100 INFO L130 BoogieDeclarations]: Found specification of procedure bdevname [2021-11-20 23:32:45,100 INFO L138 BoogieDeclarations]: Found implementation of procedure bdevname [2021-11-20 23:32:45,100 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-11-20 23:32:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-11-20 23:32:45,101 INFO L130 BoogieDeclarations]: Found specification of procedure __clear_bit [2021-11-20 23:32:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __clear_bit [2021-11-20 23:32:45,101 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-20 23:32:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-20 23:32:45,101 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_sub [2021-11-20 23:32:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_sub [2021-11-20 23:32:45,101 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-11-20 23:32:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-11-20 23:32:45,102 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-20 23:32:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-20 23:32:45,102 INFO L130 BoogieDeclarations]: Found specification of procedure read_seqcount_begin [2021-11-20 23:32:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure read_seqcount_begin [2021-11-20 23:32:45,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_102 [2021-11-20 23:32:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_102 [2021-11-20 23:32:45,102 INFO L130 BoogieDeclarations]: Found specification of procedure __cpu_to_node [2021-11-20 23:32:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __cpu_to_node [2021-11-20 23:32:45,102 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-20 23:32:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-20 23:32:45,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-20 23:32:45,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-20 23:32:45,103 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-20 23:32:45,103 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-20 23:32:45,103 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_md_personality [2021-11-20 23:32:45,103 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_md_personality [2021-11-20 23:32:45,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-20 23:32:45,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-20 23:32:45,104 INFO L130 BoogieDeclarations]: Found specification of procedure lock_device_hash_lock [2021-11-20 23:32:45,104 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_device_hash_lock [2021-11-20 23:32:45,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-20 23:32:45,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-20 23:32:45,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:32:45,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-20 23:32:45,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-20 23:32:45,105 INFO L130 BoogieDeclarations]: Found specification of procedure stripe_operations_active [2021-11-20 23:32:45,105 INFO L138 BoogieDeclarations]: Found implementation of procedure stripe_operations_active [2021-11-20 23:32:45,105 INFO L130 BoogieDeclarations]: Found specification of procedure free_scratch_buffer [2021-11-20 23:32:45,105 INFO L138 BoogieDeclarations]: Found implementation of procedure free_scratch_buffer [2021-11-20 23:32:45,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_122 [2021-11-20 23:32:45,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_122 [2021-11-20 23:32:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-20 23:32:45,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-20 23:32:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-11-20 23:32:45,110 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-11-20 23:32:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_congested [2021-11-20 23:32:45,110 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_congested [2021-11-20 23:32:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure put_online_cpus [2021-11-20 23:32:45,110 INFO L138 BoogieDeclarations]: Found implementation of procedure put_online_cpus [2021-11-20 23:32:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_137 [2021-11-20 23:32:45,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_137 [2021-11-20 23:32:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-20 23:32:45,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-20 23:32:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2021-11-20 23:32:45,113 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2021-11-20 23:32:45,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:32:45,113 INFO L130 BoogieDeclarations]: Found specification of procedure revalidate_disk [2021-11-20 23:32:45,113 INFO L138 BoogieDeclarations]: Found implementation of procedure revalidate_disk [2021-11-20 23:32:45,113 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-20 23:32:45,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-20 23:32:45,113 INFO L130 BoogieDeclarations]: Found specification of procedure stripe_set_idx [2021-11-20 23:32:45,113 INFO L138 BoogieDeclarations]: Found implementation of procedure stripe_set_idx [2021-11-20 23:32:45,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:32:45,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 23:32:45,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 23:32:45,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:32:45,114 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 23:32:45,114 INFO L130 BoogieDeclarations]: Found specification of procedure compute_blocknr [2021-11-20 23:32:45,114 INFO L138 BoogieDeclarations]: Found implementation of procedure compute_blocknr [2021-11-20 23:32:45,114 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-20 23:32:45,114 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-20 23:32:45,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_device_lock_of_r5conf [2021-11-20 23:32:45,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_device_lock_of_r5conf [2021-11-20 23:32:45,114 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_wakeup_stripe_thread [2021-11-20 23:32:45,115 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_wakeup_stripe_thread [2021-11-20 23:32:45,115 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2021-11-20 23:32:45,115 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2021-11-20 23:32:45,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_md_register_thread [2021-11-20 23:32:45,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_md_register_thread [2021-11-20 23:32:45,115 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_zalloc [2021-11-20 23:32:45,115 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_zalloc [2021-11-20 23:32:45,115 INFO L130 BoogieDeclarations]: Found specification of procedure read_seqcount_retry [2021-11-20 23:32:45,115 INFO L138 BoogieDeclarations]: Found implementation of procedure read_seqcount_retry [2021-11-20 23:32:45,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_176 [2021-11-20 23:32:45,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_176 [2021-11-20 23:32:45,116 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-20 23:32:45,116 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-20 23:32:45,116 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 23:32:45,116 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 23:32:45,116 INFO L130 BoogieDeclarations]: Found specification of procedure release_stripe [2021-11-20 23:32:45,116 INFO L138 BoogieDeclarations]: Found implementation of procedure release_stripe [2021-11-20 23:32:45,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2021-11-20 23:32:45,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2021-11-20 23:32:45,117 INFO L130 BoogieDeclarations]: Found specification of procedure disk_devt [2021-11-20 23:32:45,117 INFO L138 BoogieDeclarations]: Found implementation of procedure disk_devt [2021-11-20 23:32:45,117 INFO L130 BoogieDeclarations]: Found specification of procedure make_request [2021-11-20 23:32:45,117 INFO L138 BoogieDeclarations]: Found implementation of procedure make_request [2021-11-20 23:32:45,117 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-20 23:32:45,118 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-20 23:32:45,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_103 [2021-11-20 23:32:45,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_103 [2021-11-20 23:32:45,118 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-20 23:32:45,118 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-20 23:32:45,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:32:45,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:32:45,118 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2021-11-20 23:32:45,118 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2021-11-20 23:32:45,118 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_start_reshape [2021-11-20 23:32:45,118 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_start_reshape [2021-11-20 23:32:45,119 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-20 23:32:45,119 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-20 23:32:45,119 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_notify_dirent_safe [2021-11-20 23:32:45,119 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_notify_dirent_safe [2021-11-20 23:32:45,119 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-20 23:32:45,119 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_lock [2021-11-20 23:32:45,119 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_lock [2021-11-20 23:32:45,119 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-11-20 23:32:45,119 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-11-20 23:32:45,119 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2021-11-20 23:32:45,120 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2021-11-20 23:32:45,120 INFO L130 BoogieDeclarations]: Found specification of procedure write_seqcount_end [2021-11-20 23:32:45,120 INFO L138 BoogieDeclarations]: Found implementation of procedure write_seqcount_end [2021-11-20 23:32:45,120 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2021-11-20 23:32:45,120 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2021-11-20 23:32:45,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 23:32:45,120 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 23:32:45,120 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_resize [2021-11-20 23:32:45,120 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_resize [2021-11-20 23:32:45,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_128 [2021-11-20 23:32:45,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_128 [2021-11-20 23:32:45,121 INFO L130 BoogieDeclarations]: Found specification of procedure trace_block_bio_remap [2021-11-20 23:32:45,121 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_block_bio_remap [2021-11-20 23:32:45,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-20 23:32:45,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-20 23:32:45,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_for_read_section [2021-11-20 23:32:45,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_for_read_section [2021-11-20 23:32:45,121 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-20 23:32:45,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-20 23:32:45,121 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2021-11-20 23:32:45,122 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2021-11-20 23:32:45,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-20 23:32:45,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-20 23:32:45,122 INFO L130 BoogieDeclarations]: Found specification of procedure run [2021-11-20 23:32:45,122 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2021-11-20 23:32:45,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:32:45,122 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-20 23:32:45,122 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-20 23:32:45,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-20 23:32:45,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-20 23:32:45,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:32:45,123 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-11-20 23:32:45,123 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-11-20 23:32:45,123 INFO L130 BoogieDeclarations]: Found specification of procedure drop_one_stripe [2021-11-20 23:32:45,123 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_one_stripe [2021-11-20 23:32:45,123 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2021-11-20 23:32:45,123 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2021-11-20 23:32:45,123 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_add_disk [2021-11-20 23:32:45,123 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_add_disk [2021-11-20 23:32:45,124 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-20 23:32:45,124 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-20 23:32:45,124 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-20 23:32:45,124 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-20 23:32:45,124 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-20 23:32:45,124 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-20 23:32:45,124 INFO L130 BoogieDeclarations]: Found specification of procedure shrink_buffers [2021-11-20 23:32:45,124 INFO L138 BoogieDeclarations]: Found implementation of procedure shrink_buffers [2021-11-20 23:32:45,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-20 23:32:45,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-20 23:32:45,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_stripe_lock_of_stripe_head [2021-11-20 23:32:45,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_stripe_lock_of_stripe_head [2021-11-20 23:32:45,125 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-20 23:32:45,125 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-20 23:32:45,125 INFO L130 BoogieDeclarations]: Found specification of procedure mdname [2021-11-20 23:32:45,125 INFO L138 BoogieDeclarations]: Found implementation of procedure mdname [2021-11-20 23:32:45,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-20 23:32:45,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-20 23:32:45,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-20 23:32:45,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-20 23:32:45,126 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_suspend [2021-11-20 23:32:45,126 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_suspend [2021-11-20 23:32:45,126 INFO L130 BoogieDeclarations]: Found specification of procedure free_conf [2021-11-20 23:32:45,126 INFO L138 BoogieDeclarations]: Found implementation of procedure free_conf [2021-11-20 23:32:45,126 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-20 23:32:45,126 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-20 23:32:45,126 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_cmpxchg [2021-11-20 23:32:45,127 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_cmpxchg [2021-11-20 23:32:45,127 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2021-11-20 23:32:45,127 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2021-11-20 23:32:45,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:32:45,127 INFO L130 BoogieDeclarations]: Found specification of procedure grow_one_stripe [2021-11-20 23:32:45,127 INFO L138 BoogieDeclarations]: Found implementation of procedure grow_one_stripe [2021-11-20 23:32:45,127 INFO L130 BoogieDeclarations]: Found specification of procedure rdev_dec_pending [2021-11-20 23:32:45,127 INFO L138 BoogieDeclarations]: Found implementation of procedure rdev_dec_pending [2021-11-20 23:32:45,127 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_resume [2021-11-20 23:32:45,127 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_resume [2021-11-20 23:32:45,127 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-20 23:32:45,128 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-20 23:32:45,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 23:32:45,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 23:32:45,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_stripe_lock_of_stripe_head [2021-11-20 23:32:45,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_stripe_lock_of_stripe_head [2021-11-20 23:32:45,128 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2021-11-20 23:32:45,128 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2021-11-20 23:32:45,128 INFO L130 BoogieDeclarations]: Found specification of procedure get_online_cpus [2021-11-20 23:32:45,128 INFO L138 BoogieDeclarations]: Found implementation of procedure get_online_cpus [2021-11-20 23:32:45,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_101 [2021-11-20 23:32:45,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_101 [2021-11-20 23:32:45,129 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2021-11-20 23:32:45,129 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2021-11-20 23:32:45,129 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_add [2021-11-20 23:32:45,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_add [2021-11-20 23:32:45,129 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_unless [2021-11-20 23:32:45,129 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_unless [2021-11-20 23:32:45,129 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_scratch_buffer [2021-11-20 23:32:45,129 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_scratch_buffer [2021-11-20 23:32:45,129 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-20 23:32:45,130 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-20 23:32:45,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_md_personality [2021-11-20 23:32:45,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_md_personality [2021-11-20 23:32:45,130 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_check [2021-11-20 23:32:45,130 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_check [2021-11-20 23:32:45,130 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-20 23:32:45,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-20 23:32:45,130 INFO L130 BoogieDeclarations]: Found specification of procedure static_key_false [2021-11-20 23:32:45,130 INFO L138 BoogieDeclarations]: Found implementation of procedure static_key_false [2021-11-20 23:32:45,130 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_startwrite [2021-11-20 23:32:45,131 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_startwrite [2021-11-20 23:32:45,131 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2021-11-20 23:32:45,131 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2021-11-20 23:32:45,131 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-11-20 23:32:45,131 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-11-20 23:32:45,131 INFO L130 BoogieDeclarations]: Found specification of procedure raid45_takeover_raid0 [2021-11-20 23:32:45,131 INFO L138 BoogieDeclarations]: Found implementation of procedure raid45_takeover_raid0 [2021-11-20 23:32:45,131 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-20 23:32:45,131 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-20 23:32:45,131 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_notify [2021-11-20 23:32:45,132 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_notify [2021-11-20 23:32:45,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-20 23:32:45,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-20 23:32:45,132 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_finish_reshape [2021-11-20 23:32:45,132 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_finish_reshape [2021-11-20 23:32:45,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 23:32:45,132 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 23:32:45,132 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-20 23:32:45,132 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-20 23:32:45,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 23:32:45,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 23:32:45,133 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_start_sync [2021-11-20 23:32:45,133 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_start_sync [2021-11-20 23:32:45,133 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_check_reshape [2021-11-20 23:32:45,133 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_check_reshape [2021-11-20 23:32:45,133 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2021-11-20 23:32:45,133 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2021-11-20 23:32:45,133 INFO L130 BoogieDeclarations]: Found specification of procedure setup_conf [2021-11-20 23:32:45,133 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_conf [2021-11-20 23:32:45,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-20 23:32:45,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-20 23:32:45,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-20 23:32:45,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-20 23:32:45,134 INFO L130 BoogieDeclarations]: Found specification of procedure scribble_len [2021-11-20 23:32:45,134 INFO L138 BoogieDeclarations]: Found implementation of procedure scribble_len [2021-11-20 23:32:45,134 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-20 23:32:45,134 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-20 23:32:45,134 INFO L130 BoogieDeclarations]: Found specification of procedure add_stripe_bio [2021-11-20 23:32:45,134 INFO L138 BoogieDeclarations]: Found implementation of procedure add_stripe_bio [2021-11-20 23:32:45,134 INFO L130 BoogieDeclarations]: Found specification of procedure bio_init [2021-11-20 23:32:45,134 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_init [2021-11-20 23:32:45,135 INFO L130 BoogieDeclarations]: Found specification of procedure generic_make_request [2021-11-20 23:32:45,135 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_make_request [2021-11-20 23:32:45,135 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-11-20 23:32:45,135 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-11-20 23:32:45,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-20 23:32:45,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-20 23:32:45,135 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-11-20 23:32:45,135 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-11-20 23:32:45,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_175 [2021-11-20 23:32:45,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_175 [2021-11-20 23:32:45,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 23:32:45,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 23:32:45,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-20 23:32:45,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-20 23:32:45,136 INFO L130 BoogieDeclarations]: Found specification of procedure md_write_end [2021-11-20 23:32:45,136 INFO L138 BoogieDeclarations]: Found implementation of procedure md_write_end [2021-11-20 23:32:45,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:32:45,136 INFO L130 BoogieDeclarations]: Found specification of procedure is_badblock [2021-11-20 23:32:45,136 INFO L138 BoogieDeclarations]: Found implementation of procedure is_badblock [2021-11-20 23:32:45,136 INFO L130 BoogieDeclarations]: Found specification of procedure md_set_array_sectors [2021-11-20 23:32:45,137 INFO L138 BoogieDeclarations]: Found implementation of procedure md_set_array_sectors [2021-11-20 23:32:45,137 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_dec_bi_active_stripes [2021-11-20 23:32:45,137 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_dec_bi_active_stripes [2021-11-20 23:32:45,137 INFO L130 BoogieDeclarations]: Found specification of procedure register_md_personality [2021-11-20 23:32:45,137 INFO L138 BoogieDeclarations]: Found implementation of procedure register_md_personality [2021-11-20 23:32:45,137 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-20 23:32:45,137 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-20 23:32:45,137 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-20 23:32:45,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-20 23:32:45,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-20 23:32:45,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-20 23:32:45,138 INFO L130 BoogieDeclarations]: Found specification of procedure get_start_sect [2021-11-20 23:32:45,138 INFO L138 BoogieDeclarations]: Found implementation of procedure get_start_sect [2021-11-20 23:32:45,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-20 23:32:45,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-20 23:32:45,138 INFO L130 BoogieDeclarations]: Found specification of procedure print_raid5_conf [2021-11-20 23:32:45,138 INFO L138 BoogieDeclarations]: Found implementation of procedure print_raid5_conf [2021-11-20 23:32:45,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-20 23:32:45,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-20 23:32:45,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-20 23:32:45,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-20 23:32:45,139 INFO L130 BoogieDeclarations]: Found specification of procedure status [2021-11-20 23:32:45,139 INFO L138 BoogieDeclarations]: Found implementation of procedure status [2021-11-20 23:32:45,139 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-20 23:32:45,139 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-20 23:32:45,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-20 23:32:45,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-20 23:32:45,139 INFO L130 BoogieDeclarations]: Found specification of procedure md_wakeup_thread [2021-11-20 23:32:45,139 INFO L138 BoogieDeclarations]: Found implementation of procedure md_wakeup_thread [2021-11-20 23:32:45,139 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2021-11-20 23:32:45,139 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2021-11-20 23:32:45,140 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_inc_bi_active_stripes [2021-11-20 23:32:45,140 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_inc_bi_active_stripes [2021-11-20 23:32:45,140 INFO L130 BoogieDeclarations]: Found specification of procedure disk_stack_limits [2021-11-20 23:32:45,140 INFO L138 BoogieDeclarations]: Found implementation of procedure disk_stack_limits [2021-11-20 23:32:45,140 INFO L130 BoogieDeclarations]: Found specification of procedure remove_hash [2021-11-20 23:32:45,140 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_hash [2021-11-20 23:32:45,140 INFO L130 BoogieDeclarations]: Found specification of procedure stripe_hash [2021-11-20 23:32:45,140 INFO L138 BoogieDeclarations]: Found implementation of procedure stripe_hash [2021-11-20 23:32:45,140 INFO L130 BoogieDeclarations]: Found specification of procedure release_inactive_stripe_list [2021-11-20 23:32:45,140 INFO L138 BoogieDeclarations]: Found implementation of procedure release_inactive_stripe_list [2021-11-20 23:32:45,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-20 23:32:45,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-20 23:32:45,141 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-20 23:32:45,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-20 23:32:45,141 INFO L130 BoogieDeclarations]: Found specification of procedure write_seqcount_begin [2021-11-20 23:32:45,141 INFO L138 BoogieDeclarations]: Found implementation of procedure write_seqcount_begin [2021-11-20 23:32:45,141 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-11-20 23:32:45,141 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-11-20 23:32:45,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_device_lock_of_r5conf [2021-11-20 23:32:45,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_device_lock_of_r5conf [2021-11-20 23:32:45,141 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2021-11-20 23:32:45,142 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2021-11-20 23:32:45,142 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-11-20 23:32:45,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_md_personality [2021-11-20 23:32:45,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_md_personality [2021-11-20 23:32:45,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 23:32:45,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 23:32:45,142 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_size [2021-11-20 23:32:45,142 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_size [2021-11-20 23:32:45,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-20 23:32:45,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-20 23:32:45,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2021-11-20 23:32:45,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2021-11-20 23:32:45,143 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_return [2021-11-20 23:32:45,143 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_return [2021-11-20 23:32:45,143 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_spare_active [2021-11-20 23:32:45,143 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_spare_active [2021-11-20 23:32:45,143 INFO L130 BoogieDeclarations]: Found specification of procedure md_allow_write [2021-11-20 23:32:45,143 INFO L138 BoogieDeclarations]: Found implementation of procedure md_allow_write [2021-11-20 23:32:45,143 INFO L130 BoogieDeclarations]: Found specification of procedure lock_all_device_hash_locks_irq [2021-11-20 23:32:45,143 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_all_device_hash_locks_irq [2021-11-20 23:32:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-20 23:32:45,144 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-20 23:32:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_device_hash_lock [2021-11-20 23:32:45,144 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_device_hash_lock [2021-11-20 23:32:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure md_register_thread [2021-11-20 23:32:45,144 INFO L138 BoogieDeclarations]: Found implementation of procedure md_register_thread [2021-11-20 23:32:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure check_stripe_cache [2021-11-20 23:32:45,144 INFO L138 BoogieDeclarations]: Found implementation of procedure check_stripe_cache [2021-11-20 23:32:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-11-20 23:32:45,144 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-11-20 23:32:45,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_NOT_ARG_SIGN [2021-11-20 23:32:45,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_NOT_ARG_SIGN [2021-11-20 23:32:45,145 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_quiesce [2021-11-20 23:32:45,145 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_quiesce [2021-11-20 23:32:45,145 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_store_stripe_cache_size [2021-11-20 23:32:45,145 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_store_stripe_cache_size [2021-11-20 23:32:45,145 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock_sched_notrace [2021-11-20 23:32:45,145 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock_sched_notrace [2021-11-20 23:32:45,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 23:32:45,145 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_compute_sector [2021-11-20 23:32:45,146 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_compute_sector [2021-11-20 23:32:45,146 INFO L130 BoogieDeclarations]: Found specification of procedure trace_block_bio_complete [2021-11-20 23:32:45,146 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_block_bio_complete [2021-11-20 23:32:45,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-20 23:32:45,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-20 23:32:45,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-20 23:32:45,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-20 23:32:45,146 INFO L130 BoogieDeclarations]: Found specification of procedure do_release_stripe [2021-11-20 23:32:45,146 INFO L138 BoogieDeclarations]: Found implementation of procedure do_release_stripe [2021-11-20 23:32:45,146 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_mergeable_bvec [2021-11-20 23:32:45,147 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_mergeable_bvec [2021-11-20 23:32:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure check_reshape [2021-11-20 23:32:45,147 INFO L138 BoogieDeclarations]: Found implementation of procedure check_reshape [2021-11-20 23:32:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure get_free_stripe [2021-11-20 23:32:45,147 INFO L138 BoogieDeclarations]: Found implementation of procedure get_free_stripe [2021-11-20 23:32:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-20 23:32:45,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-20 23:32:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_100 [2021-11-20 23:32:45,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_100 [2021-11-20 23:32:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure r5_next_bio [2021-11-20 23:32:45,148 INFO L138 BoogieDeclarations]: Found implementation of procedure r5_next_bio [2021-11-20 23:32:45,148 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-20 23:32:45,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-20 23:32:45,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-20 23:32:45,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-20 23:32:45,148 INFO L130 BoogieDeclarations]: Found specification of procedure only_parity [2021-11-20 23:32:45,148 INFO L138 BoogieDeclarations]: Found implementation of procedure only_parity [2021-11-20 23:32:45,148 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 23:32:45,148 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 23:32:45,148 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_unlock [2021-11-20 23:32:45,148 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_unlock [2021-11-20 23:32:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-20 23:32:45,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-20 23:32:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_of_2 [2021-11-20 23:32:45,149 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_of_2 [2021-11-20 23:32:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_NOT_ARG_SIGN [2021-11-20 23:32:45,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_NOT_ARG_SIGN [2021-11-20 23:32:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure release_stripe_plug [2021-11-20 23:32:45,149 INFO L138 BoogieDeclarations]: Found implementation of procedure release_stripe_plug [2021-11-20 23:32:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-20 23:32:45,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-20 23:32:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure has_failed [2021-11-20 23:32:45,150 INFO L138 BoogieDeclarations]: Found implementation of procedure has_failed [2021-11-20 23:32:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-20 23:32:45,150 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-20 23:32:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_all_device_hash_locks_irq [2021-11-20 23:32:45,150 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_all_device_hash_locks_irq [2021-11-20 23:32:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2021-11-20 23:32:45,150 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2021-11-20 23:32:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-20 23:32:45,150 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-20 23:32:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_free [2021-11-20 23:32:45,151 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_free [2021-11-20 23:32:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-20 23:32:45,151 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-20 23:32:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure calc_degraded [2021-11-20 23:32:45,151 INFO L138 BoogieDeclarations]: Found implementation of procedure calc_degraded [2021-11-20 23:32:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure algorithm_valid_raid6 [2021-11-20 23:32:45,151 INFO L138 BoogieDeclarations]: Found implementation of procedure algorithm_valid_raid6 [2021-11-20 23:32:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure algorithm_valid_raid5 [2021-11-20 23:32:45,151 INFO L138 BoogieDeclarations]: Found implementation of procedure algorithm_valid_raid5 [2021-11-20 23:32:45,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-20 23:32:45,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-20 23:32:45,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_136 [2021-11-20 23:32:45,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_136 [2021-11-20 23:32:45,152 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2021-11-20 23:32:45,152 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2021-11-20 23:32:45,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-20 23:32:45,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-20 23:32:45,152 INFO L130 BoogieDeclarations]: Found specification of procedure error [2021-11-20 23:32:45,152 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2021-11-20 23:32:45,152 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2021-11-20 23:32:45,153 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2021-11-20 23:32:45,153 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-20 23:32:45,153 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-20 23:32:45,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_121 [2021-11-20 23:32:45,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_121 [2021-11-20 23:32:45,153 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2021-11-20 23:32:45,153 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2021-11-20 23:32:45,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:32:46,466 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:32:46,471 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:32:46,846 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 23:33:01,855 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:33:05,078 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:33:05,078 INFO L301 CfgBuilder]: Removed 10 assume(true) statements. [2021-11-20 23:33:05,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:33:05 BoogieIcfgContainer [2021-11-20 23:33:05,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:33:05,091 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:33:05,091 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:33:05,094 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:33:05,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:32:32" (1/3) ... [2021-11-20 23:33:05,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c5fc48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:33:05, skipping insertion in model container [2021-11-20 23:33:05,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:43" (2/3) ... [2021-11-20 23:33:05,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c5fc48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:33:05, skipping insertion in model container [2021-11-20 23:33:05,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:33:05" (3/3) ... [2021-11-20 23:33:05,103 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--md--raid456.ko.cil.i [2021-11-20 23:33:05,109 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:33:05,109 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2021-11-20 23:33:05,187 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:33:05,198 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 23:33:05,198 INFO L340 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2021-11-20 23:33:05,289 INFO L276 IsEmpty]: Start isEmpty. Operand has 3334 states, 1918 states have (on average 1.3415015641293013) internal successors, (2573), 2076 states have internal predecessors, (2573), 1149 states have call successors, (1149), 234 states have call predecessors, (1149), 233 states have return successors, (1141), 1120 states have call predecessors, (1141), 1141 states have call successors, (1141) [2021-11-20 23:33:05,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-20 23:33:05,297 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:05,298 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:33:05,299 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:33:05,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:05,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1054182976, now seen corresponding path program 1 times [2021-11-20 23:33:05,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:05,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875722596] [2021-11-20 23:33:05,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:05,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:06,110 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 23:33:06,111 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:06,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875722596] [2021-11-20 23:33:06,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875722596] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:06,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:06,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:33:06,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950646987] [2021-11-20 23:33:06,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:06,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:33:06,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:06,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:33:06,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:33:06,171 INFO L87 Difference]: Start difference. First operand has 3334 states, 1918 states have (on average 1.3415015641293013) internal successors, (2573), 2076 states have internal predecessors, (2573), 1149 states have call successors, (1149), 234 states have call predecessors, (1149), 233 states have return successors, (1141), 1120 states have call predecessors, (1141), 1141 states have call successors, (1141) Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 23:33:09,429 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 23:33:12,025 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:33:14,410 WARN L515 Checker$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 23:33:15,723 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:33:16,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:16,568 INFO L93 Difference]: Finished difference Result 6660 states and 9984 transitions. [2021-11-20 23:33:16,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:33:16,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 38 [2021-11-20 23:33:16,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:16,620 INFO L225 Difference]: With dead ends: 6660 [2021-11-20 23:33:16,620 INFO L226 Difference]: Without dead ends: 3321 [2021-11-20 23:33:16,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:33:16,659 INFO L933 BasicCegarLoop]: 4294 mSDtfsCounter, 4794 mSDsluCounter, 4830 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4807 SdHoareTripleChecker+Valid, 8595 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:16,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4807 Valid, 8595 Invalid, 1062 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1059 Invalid, 3 Unknown, 0 Unchecked, 9.8s Time] [2021-11-20 23:33:16,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3321 states. [2021-11-20 23:33:16,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3321 to 3318. [2021-11-20 23:33:16,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3318 states, 1912 states have (on average 1.3206066945606694) internal successors, (2525), 2062 states have internal predecessors, (2525), 1141 states have call successors, (1141), 234 states have call predecessors, (1141), 233 states have return successors, (1139), 1118 states have call predecessors, (1139), 1139 states have call successors, (1139) [2021-11-20 23:33:16,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3318 states to 3318 states and 4805 transitions. [2021-11-20 23:33:16,957 INFO L78 Accepts]: Start accepts. Automaton has 3318 states and 4805 transitions. Word has length 38 [2021-11-20 23:33:16,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:16,958 INFO L470 AbstractCegarLoop]: Abstraction has 3318 states and 4805 transitions. [2021-11-20 23:33:16,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 23:33:16,959 INFO L276 IsEmpty]: Start isEmpty. Operand 3318 states and 4805 transitions. [2021-11-20 23:33:16,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-20 23:33:16,968 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:16,968 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:33:16,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:33:16,969 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:33:16,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:16,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1222401184, now seen corresponding path program 1 times [2021-11-20 23:33:16,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:16,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481170873] [2021-11-20 23:33:16,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:16,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:17,264 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 23:33:17,265 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:17,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481170873] [2021-11-20 23:33:17,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481170873] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:17,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:17,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:33:17,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005383488] [2021-11-20 23:33:17,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:17,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:33:17,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:17,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:33:17,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:33:17,269 INFO L87 Difference]: Start difference. First operand 3318 states and 4805 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 23:33:19,781 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 23:33:22,469 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:33:25,109 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:33:27,504 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:33:28,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:28,597 INFO L93 Difference]: Finished difference Result 4158 states and 5918 transitions. [2021-11-20 23:33:28,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:33:28,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 43 [2021-11-20 23:33:28,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:28,636 INFO L225 Difference]: With dead ends: 4158 [2021-11-20 23:33:28,636 INFO L226 Difference]: Without dead ends: 4156 [2021-11-20 23:33:28,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:33:28,640 INFO L933 BasicCegarLoop]: 4674 mSDtfsCounter, 4697 mSDsluCounter, 6390 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4717 SdHoareTripleChecker+Valid, 10379 SdHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:28,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4717 Valid, 10379 Invalid, 1229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1225 Invalid, 4 Unknown, 0 Unchecked, 11.0s Time] [2021-11-20 23:33:28,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4156 states. [2021-11-20 23:33:29,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4156 to 4135. [2021-11-20 23:33:29,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4135 states, 2361 states have (on average 1.3062261753494282) internal successors, (3084), 2543 states have internal predecessors, (3084), 1406 states have call successors, (1406), 338 states have call predecessors, (1406), 337 states have return successors, (1404), 1372 states have call predecessors, (1404), 1404 states have call successors, (1404) [2021-11-20 23:33:29,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4135 states to 4135 states and 5894 transitions. [2021-11-20 23:33:29,099 INFO L78 Accepts]: Start accepts. Automaton has 4135 states and 5894 transitions. Word has length 43 [2021-11-20 23:33:29,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:29,100 INFO L470 AbstractCegarLoop]: Abstraction has 4135 states and 5894 transitions. [2021-11-20 23:33:29,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 23:33:29,101 INFO L276 IsEmpty]: Start isEmpty. Operand 4135 states and 5894 transitions. [2021-11-20 23:33:29,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-20 23:33:29,108 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:29,108 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:33:29,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 23:33:29,109 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:33:29,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:29,110 INFO L85 PathProgramCache]: Analyzing trace with hash 797800105, now seen corresponding path program 1 times [2021-11-20 23:33:29,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:29,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528122640] [2021-11-20 23:33:29,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:29,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:29,422 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 23:33:29,422 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:29,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528122640] [2021-11-20 23:33:29,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528122640] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:29,423 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:29,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:33:29,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075818132] [2021-11-20 23:33:29,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:29,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:33:29,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:29,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:33:29,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:33:29,425 INFO L87 Difference]: Start difference. First operand 4135 states and 5894 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-20 23:33:32,423 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 23:33:34,289 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:33:36,835 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:33:37,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:37,964 INFO L93 Difference]: Finished difference Result 4155 states and 5912 transitions. [2021-11-20 23:33:37,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:33:37,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 48 [2021-11-20 23:33:37,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:37,998 INFO L225 Difference]: With dead ends: 4155 [2021-11-20 23:33:37,999 INFO L226 Difference]: Without dead ends: 4153 [2021-11-20 23:33:38,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:33:38,003 INFO L933 BasicCegarLoop]: 4690 mSDtfsCounter, 4730 mSDsluCounter, 6375 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4741 SdHoareTripleChecker+Valid, 10389 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:38,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4741 Valid, 10389 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1217 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2021-11-20 23:33:38,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4153 states. [2021-11-20 23:33:38,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4153 to 4135. [2021-11-20 23:33:38,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4135 states, 2361 states have (on average 1.3058026260059297) internal successors, (3083), 2542 states have internal predecessors, (3083), 1406 states have call successors, (1406), 339 states have call predecessors, (1406), 338 states have return successors, (1404), 1372 states have call predecessors, (1404), 1404 states have call successors, (1404) [2021-11-20 23:33:38,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4135 states to 4135 states and 5893 transitions. [2021-11-20 23:33:38,295 INFO L78 Accepts]: Start accepts. Automaton has 4135 states and 5893 transitions. Word has length 48 [2021-11-20 23:33:38,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:38,296 INFO L470 AbstractCegarLoop]: Abstraction has 4135 states and 5893 transitions. [2021-11-20 23:33:38,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-20 23:33:38,297 INFO L276 IsEmpty]: Start isEmpty. Operand 4135 states and 5893 transitions. [2021-11-20 23:33:38,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-20 23:33:38,300 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:38,300 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:33:38,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 23:33:38,301 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:33:38,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:38,301 INFO L85 PathProgramCache]: Analyzing trace with hash -871618365, now seen corresponding path program 1 times [2021-11-20 23:33:38,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:38,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132952773] [2021-11-20 23:33:38,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:38,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:38,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:38,572 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 23:33:38,572 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:38,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132952773] [2021-11-20 23:33:38,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132952773] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:38,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:38,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:33:38,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768934825] [2021-11-20 23:33:38,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:38,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:33:38,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:38,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:33:38,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:33:38,575 INFO L87 Difference]: Start difference. First operand 4135 states and 5893 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-20 23:33:41,095 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:33:43,582 WARN L515 Checker$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 23:33:46,120 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:33:48,481 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:33:49,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:49,509 INFO L93 Difference]: Finished difference Result 4156 states and 5915 transitions. [2021-11-20 23:33:49,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:33:49,510 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 53 [2021-11-20 23:33:49,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:49,541 INFO L225 Difference]: With dead ends: 4156 [2021-11-20 23:33:49,541 INFO L226 Difference]: Without dead ends: 4154 [2021-11-20 23:33:49,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:33:49,544 INFO L933 BasicCegarLoop]: 4688 mSDtfsCounter, 4691 mSDsluCounter, 6406 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4711 SdHoareTripleChecker+Valid, 10407 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1229 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:49,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4711 Valid, 10407 Invalid, 1233 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1229 Invalid, 4 Unknown, 0 Unchecked, 10.6s Time] [2021-11-20 23:33:49,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4154 states. [2021-11-20 23:33:49,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4154 to 4133. [2021-11-20 23:33:49,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4133 states, 2360 states have (on average 1.3055084745762713) internal successors, (3081), 2540 states have internal predecessors, (3081), 1406 states have call successors, (1406), 339 states have call predecessors, (1406), 338 states have return successors, (1404), 1372 states have call predecessors, (1404), 1404 states have call successors, (1404) [2021-11-20 23:33:49,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4133 states to 4133 states and 5891 transitions. [2021-11-20 23:33:49,798 INFO L78 Accepts]: Start accepts. Automaton has 4133 states and 5891 transitions. Word has length 53 [2021-11-20 23:33:49,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:49,799 INFO L470 AbstractCegarLoop]: Abstraction has 4133 states and 5891 transitions. [2021-11-20 23:33:49,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-20 23:33:49,799 INFO L276 IsEmpty]: Start isEmpty. Operand 4133 states and 5891 transitions. [2021-11-20 23:33:49,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-20 23:33:49,801 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:49,801 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:33:49,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 23:33:49,802 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:33:49,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:49,803 INFO L85 PathProgramCache]: Analyzing trace with hash 2025891630, now seen corresponding path program 1 times [2021-11-20 23:33:49,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:49,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805983512] [2021-11-20 23:33:49,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:49,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:49,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:50,051 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 23:33:50,051 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:50,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805983512] [2021-11-20 23:33:50,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805983512] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:50,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:50,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:33:50,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322530038] [2021-11-20 23:33:50,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:50,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:33:50,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:50,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:33:50,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:33:50,053 INFO L87 Difference]: Start difference. First operand 4133 states and 5891 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-20 23:33:52,832 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:33:55,358 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:33:57,672 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 23:33:58,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:58,526 INFO L93 Difference]: Finished difference Result 4151 states and 5908 transitions. [2021-11-20 23:33:58,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:33:58,526 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 58 [2021-11-20 23:33:58,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:58,554 INFO L225 Difference]: With dead ends: 4151 [2021-11-20 23:33:58,554 INFO L226 Difference]: Without dead ends: 4149 [2021-11-20 23:33:58,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:33:58,558 INFO L933 BasicCegarLoop]: 4686 mSDtfsCounter, 4717 mSDsluCounter, 6371 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4734 SdHoareTripleChecker+Valid, 10381 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:58,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4734 Valid, 10381 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1217 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2021-11-20 23:33:58,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4149 states. [2021-11-20 23:33:58,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4149 to 4131. [2021-11-20 23:33:58,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4131 states, 2359 states have (on average 1.305214073760068) internal successors, (3079), 2538 states have internal predecessors, (3079), 1406 states have call successors, (1406), 339 states have call predecessors, (1406), 338 states have return successors, (1404), 1372 states have call predecessors, (1404), 1404 states have call successors, (1404) [2021-11-20 23:33:58,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4131 states to 4131 states and 5889 transitions. [2021-11-20 23:33:58,808 INFO L78 Accepts]: Start accepts. Automaton has 4131 states and 5889 transitions. Word has length 58 [2021-11-20 23:33:58,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:58,811 INFO L470 AbstractCegarLoop]: Abstraction has 4131 states and 5889 transitions. [2021-11-20 23:33:58,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-20 23:33:58,811 INFO L276 IsEmpty]: Start isEmpty. Operand 4131 states and 5889 transitions. [2021-11-20 23:33:58,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-20 23:33:58,814 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:58,815 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:33:58,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 23:33:58,815 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:33:58,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:58,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1189215320, now seen corresponding path program 1 times [2021-11-20 23:33:58,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:58,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612454571] [2021-11-20 23:33:58,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:58,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:59,038 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 23:33:59,038 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:59,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612454571] [2021-11-20 23:33:59,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612454571] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:59,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:59,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:33:59,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999371649] [2021-11-20 23:33:59,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:59,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:33:59,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:59,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:33:59,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:33:59,042 INFO L87 Difference]: Start difference. First operand 4131 states and 5889 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 23:34:01,549 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 23:34:04,029 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:34:06,500 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:34:08,827 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:34:09,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:34:09,688 INFO L93 Difference]: Finished difference Result 4149 states and 5906 transitions. [2021-11-20 23:34:09,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:34:09,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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 23:34:09,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:34:09,715 INFO L225 Difference]: With dead ends: 4149 [2021-11-20 23:34:09,715 INFO L226 Difference]: Without dead ends: 4147 [2021-11-20 23:34:09,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:34:09,718 INFO L933 BasicCegarLoop]: 4684 mSDtfsCounter, 4714 mSDsluCounter, 6368 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4731 SdHoareTripleChecker+Valid, 10377 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:34:09,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4731 Valid, 10377 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1214 Invalid, 4 Unknown, 0 Unchecked, 10.4s Time] [2021-11-20 23:34:09,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4147 states. [2021-11-20 23:34:09,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4147 to 4129. [2021-11-20 23:34:09,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4129 states, 2358 states have (on average 1.3049194232400338) internal successors, (3077), 2536 states have internal predecessors, (3077), 1406 states have call successors, (1406), 339 states have call predecessors, (1406), 338 states have return successors, (1404), 1372 states have call predecessors, (1404), 1404 states have call successors, (1404) [2021-11-20 23:34:09,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4129 states to 4129 states and 5887 transitions. [2021-11-20 23:34:09,971 INFO L78 Accepts]: Start accepts. Automaton has 4129 states and 5887 transitions. Word has length 63 [2021-11-20 23:34:09,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:34:09,972 INFO L470 AbstractCegarLoop]: Abstraction has 4129 states and 5887 transitions. [2021-11-20 23:34:09,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 23:34:09,972 INFO L276 IsEmpty]: Start isEmpty. Operand 4129 states and 5887 transitions. [2021-11-20 23:34:09,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-20 23:34:09,974 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:34:09,974 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:34:09,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 23:34:09,975 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:34:09,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:34:09,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1694009057, now seen corresponding path program 1 times [2021-11-20 23:34:09,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:34:09,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621454798] [2021-11-20 23:34:09,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:34:09,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:34:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:34:10,180 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 23:34:10,181 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:34:10,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621454798] [2021-11-20 23:34:10,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621454798] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:34:10,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:34:10,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:34:10,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21935879] [2021-11-20 23:34:10,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:34:10,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:34:10,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:34:10,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:34:10,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:34:10,183 INFO L87 Difference]: Start difference. First operand 4129 states and 5887 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-20 23:34:12,657 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 23:34:15,253 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:34:18,088 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:34:20,736 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 23:34:23,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:34:23,832 INFO L93 Difference]: Finished difference Result 8215 states and 11726 transitions. [2021-11-20 23:34:23,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:34:23,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 23:34:23,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:34:23,889 INFO L225 Difference]: With dead ends: 8215 [2021-11-20 23:34:23,890 INFO L226 Difference]: Without dead ends: 8213 [2021-11-20 23:34:23,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:34:23,895 INFO L933 BasicCegarLoop]: 5869 mSDtfsCounter, 4720 mSDsluCounter, 11257 mSDsCounter, 0 mSdLazyCounter, 1742 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4730 SdHoareTripleChecker+Valid, 15997 SdHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1742 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:34:23,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4730 Valid, 15997 Invalid, 1747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1742 Invalid, 4 Unknown, 0 Unchecked, 13.3s Time] [2021-11-20 23:34:23,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8213 states. [2021-11-20 23:34:24,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8213 to 8080. [2021-11-20 23:34:24,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8080 states, 4621 states have (on average 1.3066435836399048) internal successors, (6038), 4952 states have internal predecessors, (6038), 2775 states have call successors, (2775), 658 states have call predecessors, (2775), 657 states have return successors, (2779), 2707 states have call predecessors, (2779), 2773 states have call successors, (2779) [2021-11-20 23:34:24,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8080 states to 8080 states and 11592 transitions. [2021-11-20 23:34:24,455 INFO L78 Accepts]: Start accepts. Automaton has 8080 states and 11592 transitions. Word has length 68 [2021-11-20 23:34:24,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:34:24,456 INFO L470 AbstractCegarLoop]: Abstraction has 8080 states and 11592 transitions. [2021-11-20 23:34:24,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-20 23:34:24,456 INFO L276 IsEmpty]: Start isEmpty. Operand 8080 states and 11592 transitions. [2021-11-20 23:34:24,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-20 23:34:24,459 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:34:24,459 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:34:24,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 23:34:24,459 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:34:24,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:34:24,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1440598843, now seen corresponding path program 1 times [2021-11-20 23:34:24,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:34:24,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801528386] [2021-11-20 23:34:24,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:34:24,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:34:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:34:24,644 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 23:34:24,645 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:34:24,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801528386] [2021-11-20 23:34:24,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801528386] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:34:24,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:34:24,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:34:24,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737537298] [2021-11-20 23:34:24,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:34:24,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:34:24,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:34:24,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:34:24,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:34:24,647 INFO L87 Difference]: Start difference. First operand 8080 states and 11592 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-20 23:34:27,386 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 23:34:29,885 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:34:32,281 WARN L515 Checker$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 23:34:33,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:34:33,163 INFO L93 Difference]: Finished difference Result 8102 states and 11619 transitions. [2021-11-20 23:34:33,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:34:33,163 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 23:34:33,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:34:33,201 INFO L225 Difference]: With dead ends: 8102 [2021-11-20 23:34:33,202 INFO L226 Difference]: Without dead ends: 8100 [2021-11-20 23:34:33,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:34:33,208 INFO L933 BasicCegarLoop]: 4682 mSDtfsCounter, 4714 mSDsluCounter, 6363 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4731 SdHoareTripleChecker+Valid, 10369 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:34:33,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4731 Valid, 10369 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1217 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2021-11-20 23:34:33,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8100 states. [2021-11-20 23:34:33,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8100 to 8078. [2021-11-20 23:34:33,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8078 states, 4620 states have (on average 1.3064935064935066) internal successors, (6036), 4950 states have internal predecessors, (6036), 2775 states have call successors, (2775), 658 states have call predecessors, (2775), 657 states have return successors, (2779), 2707 states have call predecessors, (2779), 2773 states have call successors, (2779) [2021-11-20 23:34:33,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8078 states to 8078 states and 11590 transitions. [2021-11-20 23:34:33,785 INFO L78 Accepts]: Start accepts. Automaton has 8078 states and 11590 transitions. Word has length 73 [2021-11-20 23:34:33,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:34:33,786 INFO L470 AbstractCegarLoop]: Abstraction has 8078 states and 11590 transitions. [2021-11-20 23:34:33,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-20 23:34:33,786 INFO L276 IsEmpty]: Start isEmpty. Operand 8078 states and 11590 transitions. [2021-11-20 23:34:33,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-20 23:34:33,788 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:34:33,788 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:34:33,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 23:34:33,789 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:34:33,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:34:33,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1436307038, now seen corresponding path program 1 times [2021-11-20 23:34:33,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:34:33,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745768137] [2021-11-20 23:34:33,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:34:33,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:34:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:34:33,967 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 23:34:33,967 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:34:33,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745768137] [2021-11-20 23:34:33,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745768137] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:34:33,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:34:33,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:34:33,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707867708] [2021-11-20 23:34:33,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:34:33,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:34:33,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:34:33,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:34:33,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:34:33,971 INFO L87 Difference]: Start difference. First operand 8078 states and 11590 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-20 23:34:36,354 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:34:38,834 WARN L515 Checker$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 23:34:41,300 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:34:43,680 WARN L515 Checker$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 23:34:44,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:34:44,524 INFO L93 Difference]: Finished difference Result 8103 states and 11625 transitions. [2021-11-20 23:34:44,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:34:44,525 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 75 [2021-11-20 23:34:44,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:34:44,563 INFO L225 Difference]: With dead ends: 8103 [2021-11-20 23:34:44,563 INFO L226 Difference]: Without dead ends: 8101 [2021-11-20 23:34:44,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:34:44,571 INFO L933 BasicCegarLoop]: 4680 mSDtfsCounter, 4677 mSDsluCounter, 6398 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4697 SdHoareTripleChecker+Valid, 10391 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1229 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:34:44,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4697 Valid, 10391 Invalid, 1233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1229 Invalid, 4 Unknown, 0 Unchecked, 10.3s Time] [2021-11-20 23:34:44,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8101 states. [2021-11-20 23:34:45,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8101 to 8076. [2021-11-20 23:34:45,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8076 states, 4619 states have (on average 1.306343364364581) internal successors, (6034), 4948 states have internal predecessors, (6034), 2775 states have call successors, (2775), 658 states have call predecessors, (2775), 657 states have return successors, (2779), 2707 states have call predecessors, (2779), 2773 states have call successors, (2779) [2021-11-20 23:34:45,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8076 states to 8076 states and 11588 transitions. [2021-11-20 23:34:45,140 INFO L78 Accepts]: Start accepts. Automaton has 8076 states and 11588 transitions. Word has length 75 [2021-11-20 23:34:45,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:34:45,141 INFO L470 AbstractCegarLoop]: Abstraction has 8076 states and 11588 transitions. [2021-11-20 23:34:45,141 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-20 23:34:45,141 INFO L276 IsEmpty]: Start isEmpty. Operand 8076 states and 11588 transitions. [2021-11-20 23:34:45,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-20 23:34:45,148 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:34:45,149 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:34:45,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 23:34:45,149 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:34:45,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:34:45,150 INFO L85 PathProgramCache]: Analyzing trace with hash 103793524, now seen corresponding path program 1 times [2021-11-20 23:34:45,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:34:45,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428640374] [2021-11-20 23:34:45,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:34:45,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:34:45,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:34:45,322 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 23:34:45,322 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:34:45,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428640374] [2021-11-20 23:34:45,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428640374] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:34:45,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:34:45,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:34:45,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114452281] [2021-11-20 23:34:45,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:34:45,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:34:45,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:34:45,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:34:45,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:34:45,325 INFO L87 Difference]: Start difference. First operand 8076 states and 11588 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-20 23:34:48,269 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:34:50,735 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:34:53,380 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:34:54,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:34:54,059 INFO L93 Difference]: Finished difference Result 8076 states and 11588 transitions. [2021-11-20 23:34:54,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:34:54,061 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 80 [2021-11-20 23:34:54,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:34:54,092 INFO L225 Difference]: With dead ends: 8076 [2021-11-20 23:34:54,092 INFO L226 Difference]: Without dead ends: 8074 [2021-11-20 23:34:54,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:34:54,096 INFO L933 BasicCegarLoop]: 4256 mSDtfsCounter, 4748 mSDsluCounter, 4790 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4758 SdHoareTripleChecker+Valid, 8517 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:34:54,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4758 Valid, 8517 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1058 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2021-11-20 23:34:54,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8074 states. [2021-11-20 23:34:54,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8074 to 8074. [2021-11-20 23:34:54,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8074 states, 4618 states have (on average 1.3061931572109138) internal successors, (6032), 4946 states have internal predecessors, (6032), 2775 states have call successors, (2775), 658 states have call predecessors, (2775), 657 states have return successors, (2779), 2707 states have call predecessors, (2779), 2773 states have call successors, (2779) [2021-11-20 23:34:54,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8074 states to 8074 states and 11586 transitions. [2021-11-20 23:34:54,596 INFO L78 Accepts]: Start accepts. Automaton has 8074 states and 11586 transitions. Word has length 80 [2021-11-20 23:34:54,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:34:54,596 INFO L470 AbstractCegarLoop]: Abstraction has 8074 states and 11586 transitions. [2021-11-20 23:34:54,596 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-20 23:34:54,597 INFO L276 IsEmpty]: Start isEmpty. Operand 8074 states and 11586 transitions. [2021-11-20 23:34:54,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-20 23:34:54,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:34:54,600 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:34:54,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 23:34:54,600 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:34:54,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:34:54,601 INFO L85 PathProgramCache]: Analyzing trace with hash -592117768, now seen corresponding path program 1 times [2021-11-20 23:34:54,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:34:54,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284931120] [2021-11-20 23:34:54,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:34:54,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:34:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:34:54,881 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 23:34:54,882 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:34:54,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284931120] [2021-11-20 23:34:54,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284931120] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:34:54,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:34:54,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:34:54,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639727650] [2021-11-20 23:34:54,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:34:54,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:34:54,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:34:54,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:34:54,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:34:54,885 INFO L87 Difference]: Start difference. First operand 8074 states and 11586 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-20 23:34:57,457 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:35:00,044 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:35:02,571 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:35:04,915 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 23:35:05,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:35:05,798 INFO L93 Difference]: Finished difference Result 8099 states and 11621 transitions. [2021-11-20 23:35:05,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:35:05,799 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 85 [2021-11-20 23:35:05,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:35:05,834 INFO L225 Difference]: With dead ends: 8099 [2021-11-20 23:35:05,834 INFO L226 Difference]: Without dead ends: 8097 [2021-11-20 23:35:05,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:35:05,841 INFO L933 BasicCegarLoop]: 4675 mSDtfsCounter, 4673 mSDsluCounter, 6393 mSDsCounter, 0 mSdLazyCounter, 1231 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4693 SdHoareTripleChecker+Valid, 10381 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1231 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:35:05,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4693 Valid, 10381 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1231 Invalid, 4 Unknown, 0 Unchecked, 10.5s Time] [2021-11-20 23:35:05,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8097 states. [2021-11-20 23:35:06,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8097 to 8072. [2021-11-20 23:35:06,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8072 states, 4617 states have (on average 1.3060428849902534) internal successors, (6030), 4944 states have internal predecessors, (6030), 2775 states have call successors, (2775), 658 states have call predecessors, (2775), 657 states have return successors, (2779), 2707 states have call predecessors, (2779), 2773 states have call successors, (2779) [2021-11-20 23:35:06,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8072 states to 8072 states and 11584 transitions. [2021-11-20 23:35:06,512 INFO L78 Accepts]: Start accepts. Automaton has 8072 states and 11584 transitions. Word has length 85 [2021-11-20 23:35:06,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:35:06,512 INFO L470 AbstractCegarLoop]: Abstraction has 8072 states and 11584 transitions. [2021-11-20 23:35:06,512 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-20 23:35:06,513 INFO L276 IsEmpty]: Start isEmpty. Operand 8072 states and 11584 transitions. [2021-11-20 23:35:06,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-20 23:35:06,515 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:35:06,515 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:35:06,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 23:35:06,515 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:35:06,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:35:06,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1747711606, now seen corresponding path program 1 times [2021-11-20 23:35:06,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:35:06,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754035033] [2021-11-20 23:35:06,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:06,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:35:06,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:35:06,686 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 23:35:06,686 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:35:06,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754035033] [2021-11-20 23:35:06,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754035033] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:35:06,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:35:06,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:35:06,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107602711] [2021-11-20 23:35:06,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:35:06,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:35:06,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:35:06,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:35:06,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:35:06,689 INFO L87 Difference]: Start difference. First operand 8072 states and 11584 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 23:35:09,232 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 23:35:11,699 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:35:14,807 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:35:17,198 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 23:35:18,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:35:18,141 INFO L93 Difference]: Finished difference Result 8097 states and 11619 transitions. [2021-11-20 23:35:18,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:35:18,142 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, (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 90 [2021-11-20 23:35:18,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:35:18,174 INFO L225 Difference]: With dead ends: 8097 [2021-11-20 23:35:18,174 INFO L226 Difference]: Without dead ends: 8095 [2021-11-20 23:35:18,179 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 23:35:18,180 INFO L933 BasicCegarLoop]: 4674 mSDtfsCounter, 4677 mSDsluCounter, 6392 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4691 SdHoareTripleChecker+Valid, 10379 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:35:18,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4691 Valid, 10379 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1230 Invalid, 4 Unknown, 0 Unchecked, 11.1s Time] [2021-11-20 23:35:18,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8095 states. [2021-11-20 23:35:18,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8095 to 8070. [2021-11-20 23:35:18,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8070 states, 4616 states have (on average 1.305892547660312) internal successors, (6028), 4942 states have internal predecessors, (6028), 2775 states have call successors, (2775), 658 states have call predecessors, (2775), 657 states have return successors, (2779), 2707 states have call predecessors, (2779), 2773 states have call successors, (2779) [2021-11-20 23:35:18,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8070 states to 8070 states and 11582 transitions. [2021-11-20 23:35:18,781 INFO L78 Accepts]: Start accepts. Automaton has 8070 states and 11582 transitions. Word has length 90 [2021-11-20 23:35:18,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:35:18,781 INFO L470 AbstractCegarLoop]: Abstraction has 8070 states and 11582 transitions. [2021-11-20 23:35:18,782 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 23:35:18,782 INFO L276 IsEmpty]: Start isEmpty. Operand 8070 states and 11582 transitions. [2021-11-20 23:35:18,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-20 23:35:18,784 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:35:18,784 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:35:18,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 23:35:18,785 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:35:18,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:35:18,785 INFO L85 PathProgramCache]: Analyzing trace with hash -74329135, now seen corresponding path program 1 times [2021-11-20 23:35:18,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:35:18,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256894673] [2021-11-20 23:35:18,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:18,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:35:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:35:18,958 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 23:35:18,958 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:35:18,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256894673] [2021-11-20 23:35:18,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256894673] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:35:18,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:35:18,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:35:18,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713733506] [2021-11-20 23:35:18,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:35:18,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:35:18,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:35:18,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:35:18,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:35:18,961 INFO L87 Difference]: Start difference. First operand 8070 states and 11582 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-20 23:35:21,662 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:35:24,349 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:35:27,270 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:35:30,218 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 23:35:31,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:35:31,587 INFO L93 Difference]: Finished difference Result 11004 states and 15874 transitions. [2021-11-20 23:35:31,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:35:31,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 95 [2021-11-20 23:35:31,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:35:31,637 INFO L225 Difference]: With dead ends: 11004 [2021-11-20 23:35:31,638 INFO L226 Difference]: Without dead ends: 11002 [2021-11-20 23:35:31,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:35:31,645 INFO L933 BasicCegarLoop]: 6223 mSDtfsCounter, 4207 mSDsluCounter, 11703 mSDsCounter, 0 mSdLazyCounter, 1881 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4224 SdHoareTripleChecker+Valid, 16732 SdHoareTripleChecker+Invalid, 1886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1881 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:35:31,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4224 Valid, 16732 Invalid, 1886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1881 Invalid, 4 Unknown, 0 Unchecked, 12.1s Time] [2021-11-20 23:35:31,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11002 states. [2021-11-20 23:35:32,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11002 to 10902. [2021-11-20 23:35:32,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10902 states, 6251 states have (on average 1.3101903695408734) internal successors, (8190), 6690 states have internal predecessors, (8190), 3766 states have call successors, (3766), 866 states have call predecessors, (3766), 863 states have return successors, (3812), 3666 states have call predecessors, (3812), 3764 states have call successors, (3812) [2021-11-20 23:35:32,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10902 states to 10902 states and 15768 transitions. [2021-11-20 23:35:32,452 INFO L78 Accepts]: Start accepts. Automaton has 10902 states and 15768 transitions. Word has length 95 [2021-11-20 23:35:32,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:35:32,453 INFO L470 AbstractCegarLoop]: Abstraction has 10902 states and 15768 transitions. [2021-11-20 23:35:32,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-20 23:35:32,453 INFO L276 IsEmpty]: Start isEmpty. Operand 10902 states and 15768 transitions. [2021-11-20 23:35:32,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-20 23:35:32,456 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:35:32,456 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:35:32,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 23:35:32,456 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:35:32,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:35:32,457 INFO L85 PathProgramCache]: Analyzing trace with hash -995982564, now seen corresponding path program 1 times [2021-11-20 23:35:32,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:35:32,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584826335] [2021-11-20 23:35:32,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:32,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:35:32,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:35:32,637 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 23:35:32,637 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:35:32,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584826335] [2021-11-20 23:35:32,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584826335] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:35:32,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:35:32,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:35:32,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030826131] [2021-11-20 23:35:32,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:35:32,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:35:32,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:35:32,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:35:32,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:35:32,639 INFO L87 Difference]: Start difference. First operand 10902 states and 15768 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-20 23:35:35,342 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:35:37,847 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:35:40,438 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:35:42,715 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 23:35:44,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:35:44,049 INFO L93 Difference]: Finished difference Result 10905 states and 15779 transitions. [2021-11-20 23:35:44,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:35:44,051 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 23:35:44,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:35:44,092 INFO L225 Difference]: With dead ends: 10905 [2021-11-20 23:35:44,093 INFO L226 Difference]: Without dead ends: 10903 [2021-11-20 23:35:44,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:35:44,100 INFO L933 BasicCegarLoop]: 4250 mSDtfsCounter, 4709 mSDsluCounter, 4817 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4722 SdHoareTripleChecker+Valid, 8527 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:35:44,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4722 Valid, 8527 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1071 Invalid, 4 Unknown, 0 Unchecked, 10.8s Time] [2021-11-20 23:35:44,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10903 states. [2021-11-20 23:35:44,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10903 to 10900. [2021-11-20 23:35:44,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10900 states, 6250 states have (on average 1.31008) internal successors, (8188), 6688 states have internal predecessors, (8188), 3766 states have call successors, (3766), 866 states have call predecessors, (3766), 863 states have return successors, (3812), 3666 states have call predecessors, (3812), 3764 states have call successors, (3812) [2021-11-20 23:35:44,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10900 states to 10900 states and 15766 transitions. [2021-11-20 23:35:44,945 INFO L78 Accepts]: Start accepts. Automaton has 10900 states and 15766 transitions. Word has length 100 [2021-11-20 23:35:44,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:35:44,946 INFO L470 AbstractCegarLoop]: Abstraction has 10900 states and 15766 transitions. [2021-11-20 23:35:44,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-20 23:35:44,946 INFO L276 IsEmpty]: Start isEmpty. Operand 10900 states and 15766 transitions. [2021-11-20 23:35:44,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-20 23:35:44,949 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:35:44,949 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:35:44,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 23:35:44,949 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:35:44,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:35:44,950 INFO L85 PathProgramCache]: Analyzing trace with hash -144471570, now seen corresponding path program 1 times [2021-11-20 23:35:44,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:35:44,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487141084] [2021-11-20 23:35:44,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:44,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:35:45,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:35:45,140 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 23:35:45,141 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:35:45,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487141084] [2021-11-20 23:35:45,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487141084] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:35:45,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:35:45,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:35:45,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390840098] [2021-11-20 23:35:45,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:35:45,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:35:45,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:35:45,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:35:45,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:35:45,144 INFO L87 Difference]: Start difference. First operand 10900 states and 15766 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 23:35:47,727 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 23:35:50,274 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:35:52,908 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:35:55,250 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:35:57,505 WARN L515 Checker$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 23:35:58,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:35:58,510 INFO L93 Difference]: Finished difference Result 10934 states and 15819 transitions. [2021-11-20 23:35:58,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:35:58,511 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 23:35:58,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:35:58,547 INFO L225 Difference]: With dead ends: 10934 [2021-11-20 23:35:58,548 INFO L226 Difference]: Without dead ends: 10932 [2021-11-20 23:35:58,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:35:58,555 INFO L933 BasicCegarLoop]: 4695 mSDtfsCounter, 4662 mSDsluCounter, 6418 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4685 SdHoareTripleChecker+Valid, 10423 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:35:58,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4685 Valid, 10423 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1235 Invalid, 5 Unknown, 0 Unchecked, 12.7s Time] [2021-11-20 23:35:58,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10932 states. [2021-11-20 23:35:59,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10932 to 10902. [2021-11-20 23:35:59,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10902 states, 6252 states have (on average 1.3098208573256558) internal successors, (8189), 6688 states have internal predecessors, (8189), 3766 states have call successors, (3766), 866 states have call predecessors, (3766), 864 states have return successors, (3819), 3668 states have call predecessors, (3819), 3764 states have call successors, (3819) [2021-11-20 23:35:59,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10902 states to 10902 states and 15774 transitions. [2021-11-20 23:35:59,394 INFO L78 Accepts]: Start accepts. Automaton has 10902 states and 15774 transitions. Word has length 105 [2021-11-20 23:35:59,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:35:59,395 INFO L470 AbstractCegarLoop]: Abstraction has 10902 states and 15774 transitions. [2021-11-20 23:35:59,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 23:35:59,395 INFO L276 IsEmpty]: Start isEmpty. Operand 10902 states and 15774 transitions. [2021-11-20 23:35:59,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-20 23:35:59,397 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:35:59,397 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:35:59,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-20 23:35:59,397 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:35:59,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:35:59,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1909152623, now seen corresponding path program 1 times [2021-11-20 23:35:59,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:35:59,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904605610] [2021-11-20 23:35:59,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:59,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:35:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:35:59,557 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 23:35:59,557 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:35:59,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904605610] [2021-11-20 23:35:59,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904605610] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:35:59,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:35:59,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:35:59,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068141835] [2021-11-20 23:35:59,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:35:59,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:35:59,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:35:59,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:35:59,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:35:59,560 INFO L87 Difference]: Start difference. First operand 10902 states and 15774 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-20 23:36:02,498 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:36:05,035 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:36:07,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:36:07,094 INFO L93 Difference]: Finished difference Result 10902 states and 15774 transitions. [2021-11-20 23:36:07,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:36:07,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 23:36:07,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:36:07,128 INFO L225 Difference]: With dead ends: 10902 [2021-11-20 23:36:07,128 INFO L226 Difference]: Without dead ends: 10900 [2021-11-20 23:36:07,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:36:07,135 INFO L933 BasicCegarLoop]: 4246 mSDtfsCounter, 4732 mSDsluCounter, 4780 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4742 SdHoareTripleChecker+Valid, 8497 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:36:07,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4742 Valid, 8497 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1059 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2021-11-20 23:36:07,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10900 states. [2021-11-20 23:36:07,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10900 to 10900. [2021-11-20 23:36:07,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10900 states, 6251 states have (on average 1.3097104463285874) internal successors, (8187), 6686 states have internal predecessors, (8187), 3766 states have call successors, (3766), 866 states have call predecessors, (3766), 864 states have return successors, (3819), 3668 states have call predecessors, (3819), 3764 states have call successors, (3819) [2021-11-20 23:36:07,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10900 states to 10900 states and 15772 transitions. [2021-11-20 23:36:07,930 INFO L78 Accepts]: Start accepts. Automaton has 10900 states and 15772 transitions. Word has length 110 [2021-11-20 23:36:07,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:36:07,931 INFO L470 AbstractCegarLoop]: Abstraction has 10900 states and 15772 transitions. [2021-11-20 23:36:07,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-20 23:36:07,931 INFO L276 IsEmpty]: Start isEmpty. Operand 10900 states and 15772 transitions. [2021-11-20 23:36:07,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-20 23:36:07,934 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:36:07,935 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:36:07,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-20 23:36:07,935 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:36:07,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:36:07,936 INFO L85 PathProgramCache]: Analyzing trace with hash -648863455, now seen corresponding path program 1 times [2021-11-20 23:36:07,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:36:07,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350190880] [2021-11-20 23:36:07,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:07,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:36:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:36:08,199 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 23:36:08,200 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:36:08,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350190880] [2021-11-20 23:36:08,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350190880] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:36:08,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:36:08,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:36:08,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124702733] [2021-11-20 23:36:08,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:36:08,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:36:08,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:36:08,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:36:08,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:36:08,202 INFO L87 Difference]: Start difference. First operand 10900 states and 15772 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 23:36:10,716 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:36:13,236 WARN L515 Checker$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 23:36:15,098 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:36:17,119 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:36:19,476 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 23:36:20,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:36:20,616 INFO L93 Difference]: Finished difference Result 10921 states and 15800 transitions. [2021-11-20 23:36:20,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:36:20,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 23:36:20,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:36:20,644 INFO L225 Difference]: With dead ends: 10921 [2021-11-20 23:36:20,645 INFO L226 Difference]: Without dead ends: 10919 [2021-11-20 23:36:20,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:36:20,649 INFO L933 BasicCegarLoop]: 4691 mSDtfsCounter, 4664 mSDsluCounter, 6414 mSDsCounter, 0 mSdLazyCounter, 1238 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4678 SdHoareTripleChecker+Valid, 10413 SdHoareTripleChecker+Invalid, 1242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1238 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:36:20,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4678 Valid, 10413 Invalid, 1242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1238 Invalid, 4 Unknown, 0 Unchecked, 11.8s Time] [2021-11-20 23:36:20,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10919 states. [2021-11-20 23:36:21,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10919 to 10898. [2021-11-20 23:36:21,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10898 states, 6250 states have (on average 1.3096) internal successors, (8185), 6684 states have internal predecessors, (8185), 3766 states have call successors, (3766), 866 states have call predecessors, (3766), 864 states have return successors, (3819), 3668 states have call predecessors, (3819), 3764 states have call successors, (3819) [2021-11-20 23:36:21,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10898 states to 10898 states and 15770 transitions. [2021-11-20 23:36:21,389 INFO L78 Accepts]: Start accepts. Automaton has 10898 states and 15770 transitions. Word has length 115 [2021-11-20 23:36:21,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:36:21,389 INFO L470 AbstractCegarLoop]: Abstraction has 10898 states and 15770 transitions. [2021-11-20 23:36:21,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 23:36:21,390 INFO L276 IsEmpty]: Start isEmpty. Operand 10898 states and 15770 transitions. [2021-11-20 23:36:21,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-20 23:36:21,393 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:36:21,394 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:36:21,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-20 23:36:21,394 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:36:21,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:36:21,395 INFO L85 PathProgramCache]: Analyzing trace with hash 476637875, now seen corresponding path program 1 times [2021-11-20 23:36:21,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:36:21,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617429658] [2021-11-20 23:36:21,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:21,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:36:21,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:36:21,557 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 23:36:21,557 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:36:21,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617429658] [2021-11-20 23:36:21,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617429658] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:36:21,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:36:21,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:36:21,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464726051] [2021-11-20 23:36:21,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:36:21,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:36:21,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:36:21,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:36:21,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:36:21,560 INFO L87 Difference]: Start difference. First operand 10898 states and 15770 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-20 23:36:23,954 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 23:36:26,400 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:36:29,499 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:36:31,850 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 23:36:32,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:36:32,891 INFO L93 Difference]: Finished difference Result 10919 states and 15798 transitions. [2021-11-20 23:36:32,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:36:32,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 120 [2021-11-20 23:36:32,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:36:32,917 INFO L225 Difference]: With dead ends: 10919 [2021-11-20 23:36:32,917 INFO L226 Difference]: Without dead ends: 10917 [2021-11-20 23:36:32,920 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 23:36:32,921 INFO L933 BasicCegarLoop]: 4689 mSDtfsCounter, 4654 mSDsluCounter, 6411 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4674 SdHoareTripleChecker+Valid, 10409 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:36:32,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4674 Valid, 10409 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1237 Invalid, 4 Unknown, 0 Unchecked, 10.7s Time] [2021-11-20 23:36:32,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10917 states. [2021-11-20 23:36:33,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10917 to 10896. [2021-11-20 23:36:33,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10896 states, 6249 states have (on average 1.3094895183229316) internal successors, (8183), 6682 states have internal predecessors, (8183), 3766 states have call successors, (3766), 866 states have call predecessors, (3766), 864 states have return successors, (3819), 3668 states have call predecessors, (3819), 3764 states have call successors, (3819) [2021-11-20 23:36:33,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10896 states to 10896 states and 15768 transitions. [2021-11-20 23:36:33,675 INFO L78 Accepts]: Start accepts. Automaton has 10896 states and 15768 transitions. Word has length 120 [2021-11-20 23:36:33,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:36:33,675 INFO L470 AbstractCegarLoop]: Abstraction has 10896 states and 15768 transitions. [2021-11-20 23:36:33,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-20 23:36:33,676 INFO L276 IsEmpty]: Start isEmpty. Operand 10896 states and 15768 transitions. [2021-11-20 23:36:33,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-20 23:36:33,679 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:36:33,680 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:36:33,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-20 23:36:33,680 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:36:33,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:36:33,681 INFO L85 PathProgramCache]: Analyzing trace with hash -2042178278, now seen corresponding path program 1 times [2021-11-20 23:36:33,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:36:33,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180067588] [2021-11-20 23:36:33,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:33,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:36:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:36:33,852 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 23:36:33,853 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:36:33,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180067588] [2021-11-20 23:36:33,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180067588] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:36:33,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:36:33,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:36:33,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78089409] [2021-11-20 23:36:33,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:36:33,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:36:33,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:36:33,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:36:33,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:36:33,857 INFO L87 Difference]: Start difference. First operand 10896 states and 15768 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-20 23:36:36,345 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 23:36:38,896 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:36:40,995 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:36:43,012 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:36:45,252 WARN L515 Checker$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 23:36:47,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:36:47,344 INFO L93 Difference]: Finished difference Result 10908 states and 15794 transitions. [2021-11-20 23:36:47,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:36:47,346 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 125 [2021-11-20 23:36:47,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:36:47,372 INFO L225 Difference]: With dead ends: 10908 [2021-11-20 23:36:47,372 INFO L226 Difference]: Without dead ends: 10906 [2021-11-20 23:36:47,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:36:47,376 INFO L933 BasicCegarLoop]: 4240 mSDtfsCounter, 4700 mSDsluCounter, 4810 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4710 SdHoareTripleChecker+Valid, 8509 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:36:47,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4710 Valid, 8509 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1071 Invalid, 4 Unknown, 0 Unchecked, 12.9s Time] [2021-11-20 23:36:47,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10906 states. [2021-11-20 23:36:48,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10906 to 10894. [2021-11-20 23:36:48,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10894 states, 6248 states have (on average 1.3093790012804096) internal successors, (8181), 6680 states have internal predecessors, (8181), 3766 states have call successors, (3766), 866 states have call predecessors, (3766), 864 states have return successors, (3819), 3668 states have call predecessors, (3819), 3764 states have call successors, (3819) [2021-11-20 23:36:48,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10894 states to 10894 states and 15766 transitions. [2021-11-20 23:36:48,152 INFO L78 Accepts]: Start accepts. Automaton has 10894 states and 15766 transitions. Word has length 125 [2021-11-20 23:36:48,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:36:48,152 INFO L470 AbstractCegarLoop]: Abstraction has 10894 states and 15766 transitions. [2021-11-20 23:36:48,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-20 23:36:48,153 INFO L276 IsEmpty]: Start isEmpty. Operand 10894 states and 15766 transitions. [2021-11-20 23:36:48,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-20 23:36:48,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:36:48,156 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:36:48,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-20 23:36:48,156 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:36:48,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:36:48,157 INFO L85 PathProgramCache]: Analyzing trace with hash 577236904, now seen corresponding path program 1 times [2021-11-20 23:36:48,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:36:48,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762303934] [2021-11-20 23:36:48,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:48,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:36:48,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:36:48,354 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 23:36:48,355 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:36:48,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762303934] [2021-11-20 23:36:48,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762303934] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:36:48,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:36:48,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:36:48,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873529430] [2021-11-20 23:36:48,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:36:48,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:36:48,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:36:48,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:36:48,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:36:48,358 INFO L87 Difference]: Start difference. First operand 10894 states and 15766 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-20 23:36:51,416 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:36:53,934 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:36:56,480 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 23:36:57,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:36:57,535 INFO L93 Difference]: Finished difference Result 10912 states and 15783 transitions. [2021-11-20 23:36:57,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:36:57,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 130 [2021-11-20 23:36:57,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:36:57,559 INFO L225 Difference]: With dead ends: 10912 [2021-11-20 23:36:57,559 INFO L226 Difference]: Without dead ends: 10910 [2021-11-20 23:36:57,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:36:57,563 INFO L933 BasicCegarLoop]: 4685 mSDtfsCounter, 4677 mSDsluCounter, 6374 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4694 SdHoareTripleChecker+Valid, 10379 SdHoareTripleChecker+Invalid, 1228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:36:57,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4694 Valid, 10379 Invalid, 1228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1225 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2021-11-20 23:36:57,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10910 states. [2021-11-20 23:36:58,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10910 to 10892. [2021-11-20 23:36:58,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10892 states, 6247 states have (on average 1.3092684488554507) internal successors, (8179), 6678 states have internal predecessors, (8179), 3766 states have call successors, (3766), 866 states have call predecessors, (3766), 864 states have return successors, (3819), 3668 states have call predecessors, (3819), 3764 states have call successors, (3819) [2021-11-20 23:36:58,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10892 states to 10892 states and 15764 transitions. [2021-11-20 23:36:58,177 INFO L78 Accepts]: Start accepts. Automaton has 10892 states and 15764 transitions. Word has length 130 [2021-11-20 23:36:58,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:36:58,178 INFO L470 AbstractCegarLoop]: Abstraction has 10892 states and 15764 transitions. [2021-11-20 23:36:58,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-20 23:36:58,178 INFO L276 IsEmpty]: Start isEmpty. Operand 10892 states and 15764 transitions. [2021-11-20 23:36:58,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-20 23:36:58,180 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:36:58,180 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:36:58,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-20 23:36:58,180 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:36:58,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:36:58,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1429067957, now seen corresponding path program 1 times [2021-11-20 23:36:58,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:36:58,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375820776] [2021-11-20 23:36:58,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:58,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:36:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:36:58,340 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 23:36:58,340 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:36:58,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375820776] [2021-11-20 23:36:58,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375820776] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:36:58,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:36:58,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:36:58,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071011307] [2021-11-20 23:36:58,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:36:58,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:36:58,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:36:58,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:36:58,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:36:58,343 INFO L87 Difference]: Start difference. First operand 10892 states and 15764 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-20 23:37:00,904 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:37:04,470 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:37:07,170 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:37:07,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:37:07,912 INFO L93 Difference]: Finished difference Result 10895 states and 15775 transitions. [2021-11-20 23:37:07,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:37:07,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 135 [2021-11-20 23:37:07,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:37:07,956 INFO L225 Difference]: With dead ends: 10895 [2021-11-20 23:37:07,957 INFO L226 Difference]: Without dead ends: 10730 [2021-11-20 23:37:07,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:37:07,971 INFO L933 BasicCegarLoop]: 4237 mSDtfsCounter, 4697 mSDsluCounter, 4800 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4706 SdHoareTripleChecker+Valid, 8496 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:37:07,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4706 Valid, 8496 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1071 Invalid, 3 Unknown, 0 Unchecked, 8.9s Time] [2021-11-20 23:37:07,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10730 states. [2021-11-20 23:37:08,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10730 to 10727. [2021-11-20 23:37:08,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10727 states, 6161 states have (on average 1.3127739003408538) internal successors, (8088), 6590 states have internal predecessors, (8088), 3712 states have call successors, (3712), 842 states have call predecessors, (3712), 840 states have return successors, (3764), 3615 states have call predecessors, (3764), 3710 states have call successors, (3764) [2021-11-20 23:37:08,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10727 states to 10727 states and 15564 transitions. [2021-11-20 23:37:08,990 INFO L78 Accepts]: Start accepts. Automaton has 10727 states and 15564 transitions. Word has length 135 [2021-11-20 23:37:08,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:37:08,991 INFO L470 AbstractCegarLoop]: Abstraction has 10727 states and 15564 transitions. [2021-11-20 23:37:08,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-20 23:37:08,991 INFO L276 IsEmpty]: Start isEmpty. Operand 10727 states and 15564 transitions. [2021-11-20 23:37:08,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-11-20 23:37:08,995 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:37:08,995 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:37:08,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-20 23:37:08,996 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting rcu_read_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:37:08,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:37:08,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1672610511, now seen corresponding path program 1 times [2021-11-20 23:37:08,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:37:08,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089204134] [2021-11-20 23:37:08,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:37:08,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:37:09,088 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:37:09,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [982088655] [2021-11-20 23:37:09,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:37:09,088 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:37:09,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:37:09,094 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:37:09,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 23:37:10,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:37:10,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 4048 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-20 23:37:10,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:37:11,412 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 102 proven. 14 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2021-11-20 23:37:11,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:37:12,375 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 682 trivial. 0 not checked. [2021-11-20 23:37:12,375 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:37:12,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089204134] [2021-11-20 23:37:12,376 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:37:12,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982088655] [2021-11-20 23:37:12,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982088655] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 23:37:12,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:37:12,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2021-11-20 23:37:12,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766710007] [2021-11-20 23:37:12,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:37:12,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 23:37:12,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:37:12,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 23:37:12,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-20 23:37:12,378 INFO L87 Difference]: Start difference. First operand 10727 states and 15564 transitions. Second operand has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 7 states have internal predecessors, (65), 4 states have call successors, (29), 4 states have call predecessors, (29), 3 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-20 23:37:16,198 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:37:19,590 WARN L515 Checker$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 23:37:23,160 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:37:27,452 WARN L515 Checker$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 23:37:33,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:37:33,237 INFO L93 Difference]: Finished difference Result 10761 states and 15589 transitions. [2021-11-20 23:37:33,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 23:37:33,240 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 7 states have internal predecessors, (65), 4 states have call successors, (29), 4 states have call predecessors, (29), 3 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) Word has length 228 [2021-11-20 23:37:33,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:37:33,273 INFO L225 Difference]: With dead ends: 10761 [2021-11-20 23:37:33,273 INFO L226 Difference]: Without dead ends: 10759 [2021-11-20 23:37:33,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 445 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-11-20 23:37:33,281 INFO L933 BasicCegarLoop]: 4307 mSDtfsCounter, 5408 mSDsluCounter, 5629 mSDsCounter, 0 mSdLazyCounter, 7107 mSolverCounterSat, 434 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5697 SdHoareTripleChecker+Valid, 9227 SdHoareTripleChecker+Invalid, 7545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 7107 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:37:33,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5697 Valid, 9227 Invalid, 7545 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [434 Valid, 7107 Invalid, 4 Unknown, 0 Unchecked, 19.8s Time] [2021-11-20 23:37:33,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10759 states. [2021-11-20 23:37:34,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10759 to 10741. [2021-11-20 23:37:34,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10741 states, 6168 states have (on average 1.312094682230869) internal successors, (8093), 6596 states have internal predecessors, (8093), 3712 states have call successors, (3712), 850 states have call predecessors, (3712), 848 states have return successors, (3764), 3615 states have call predecessors, (3764), 3710 states have call successors, (3764) [2021-11-20 23:37:34,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10741 states to 10741 states and 15569 transitions. [2021-11-20 23:37:34,081 INFO L78 Accepts]: Start accepts. Automaton has 10741 states and 15569 transitions. Word has length 228 [2021-11-20 23:37:34,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:37:34,082 INFO L470 AbstractCegarLoop]: Abstraction has 10741 states and 15569 transitions. [2021-11-20 23:37:34,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 7 states have internal predecessors, (65), 4 states have call successors, (29), 4 states have call predecessors, (29), 3 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-20 23:37:34,082 INFO L276 IsEmpty]: Start isEmpty. Operand 10741 states and 15569 transitions. [2021-11-20 23:37:34,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-20 23:37:34,086 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:37:34,086 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:37:34,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-20 23:37:34,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:37:34,303 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:37:34,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:37:34,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1292405772, now seen corresponding path program 1 times [2021-11-20 23:37:34,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:37:34,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060665899] [2021-11-20 23:37:34,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:37:34,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:37:34,404 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:37:34,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1137078265] [2021-11-20 23:37:34,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:37:34,405 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:37:34,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:37:34,406 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:37:34,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 23:37:35,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:37:35,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 3908 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-20 23:37:35,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:37:36,385 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2021-11-20 23:37:36,386 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:37:36,386 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:37:36,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060665899] [2021-11-20 23:37:36,386 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:37:36,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137078265] [2021-11-20 23:37:36,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137078265] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:37:36,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:37:36,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:37:36,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745543521] [2021-11-20 23:37:36,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:37:36,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:37:36,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:37:36,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:37:36,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:37:36,388 INFO L87 Difference]: Start difference. First operand 10741 states and 15569 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2021-11-20 23:37:39,847 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:37:43,852 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:37:47,449 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:37:50,091 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:37:52,210 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:37:54,329 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:37:56,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:37:56,811 INFO L93 Difference]: Finished difference Result 10744 states and 15580 transitions. [2021-11-20 23:37:56,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:37:56,812 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 193 [2021-11-20 23:37:56,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:37:56,932 INFO L225 Difference]: With dead ends: 10744 [2021-11-20 23:37:56,932 INFO L226 Difference]: Without dead ends: 10742 [2021-11-20 23:37:56,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-20 23:37:56,940 INFO L933 BasicCegarLoop]: 4184 mSDtfsCounter, 4578 mSDsluCounter, 11868 mSDsCounter, 0 mSdLazyCounter, 4321 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4592 SdHoareTripleChecker+Valid, 14494 SdHoareTripleChecker+Invalid, 4328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4321 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:37:56,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4592 Valid, 14494 Invalid, 4328 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 4321 Invalid, 6 Unknown, 0 Unchecked, 19.5s Time] [2021-11-20 23:37:56,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10742 states. [2021-11-20 23:37:57,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10742 to 10739. [2021-11-20 23:37:57,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10739 states, 6167 states have (on average 1.3113345224582456) internal successors, (8087), 6594 states have internal predecessors, (8087), 3712 states have call successors, (3712), 850 states have call predecessors, (3712), 848 states have return successors, (3764), 3615 states have call predecessors, (3764), 3710 states have call successors, (3764) [2021-11-20 23:37:57,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10739 states to 10739 states and 15563 transitions. [2021-11-20 23:37:57,625 INFO L78 Accepts]: Start accepts. Automaton has 10739 states and 15563 transitions. Word has length 193 [2021-11-20 23:37:57,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:37:57,626 INFO L470 AbstractCegarLoop]: Abstraction has 10739 states and 15563 transitions. [2021-11-20 23:37:57,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2021-11-20 23:37:57,626 INFO L276 IsEmpty]: Start isEmpty. Operand 10739 states and 15563 transitions. [2021-11-20 23:37:57,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-11-20 23:37:57,630 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:37:57,631 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:37:57,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 23:37:57,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-11-20 23:37:57,839 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:37:57,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:37:57,839 INFO L85 PathProgramCache]: Analyzing trace with hash -720962322, now seen corresponding path program 1 times [2021-11-20 23:37:57,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:37:57,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412292199] [2021-11-20 23:37:57,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:37:57,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:37:57,988 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:37:57,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [829699776] [2021-11-20 23:37:57,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:37:58,000 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:37:58,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:37:58,001 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:37:58,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 23:37:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:37:59,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 4164 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 23:37:59,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:38:00,102 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 690 trivial. 0 not checked. [2021-11-20 23:38:00,103 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:38:00,103 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:38:00,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412292199] [2021-11-20 23:38:00,103 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:38:00,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829699776] [2021-11-20 23:38:00,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829699776] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:38:00,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:38:00,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:38:00,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734867470] [2021-11-20 23:38:00,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:38:00,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:38:00,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:38:00,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:38:00,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:38:00,105 INFO L87 Difference]: Start difference. First operand 10739 states and 15563 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2021-11-20 23:38:02,342 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:38:04,678 WARN L515 Checker$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 23:38:07,091 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:38:09,397 WARN L515 Checker$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 23:38:11,609 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 23:38:12,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:38:12,523 INFO L93 Difference]: Finished difference Result 21491 states and 31321 transitions. [2021-11-20 23:38:12,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:38:12,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 235 [2021-11-20 23:38:12,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:38:12,562 INFO L225 Difference]: With dead ends: 21491 [2021-11-20 23:38:12,562 INFO L226 Difference]: Without dead ends: 10759 [2021-11-20 23:38:12,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:38:12,643 INFO L933 BasicCegarLoop]: 4583 mSDtfsCounter, 4494 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4515 SdHoareTripleChecker+Valid, 5612 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:38:12,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4515 Valid, 5612 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 680 Invalid, 5 Unknown, 0 Unchecked, 11.7s Time] [2021-11-20 23:38:12,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10759 states. [2021-11-20 23:38:13,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10759 to 10733. [2021-11-20 23:38:13,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10733 states, 6161 states have (on average 1.310663853270573) internal successors, (8075), 6588 states have internal predecessors, (8075), 3712 states have call successors, (3712), 850 states have call predecessors, (3712), 848 states have return successors, (3764), 3615 states have call predecessors, (3764), 3710 states have call successors, (3764) [2021-11-20 23:38:13,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10733 states to 10733 states and 15551 transitions. [2021-11-20 23:38:13,709 INFO L78 Accepts]: Start accepts. Automaton has 10733 states and 15551 transitions. Word has length 235 [2021-11-20 23:38:13,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:38:13,710 INFO L470 AbstractCegarLoop]: Abstraction has 10733 states and 15551 transitions. [2021-11-20 23:38:13,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2021-11-20 23:38:13,710 INFO L276 IsEmpty]: Start isEmpty. Operand 10733 states and 15551 transitions. [2021-11-20 23:38:13,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-11-20 23:38:13,715 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:38:13,715 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:38:13,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 23:38:13,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-20 23:38:13,931 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:38:13,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:38:13,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1787102364, now seen corresponding path program 1 times [2021-11-20 23:38:13,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:38:13,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612136521] [2021-11-20 23:38:13,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:38:13,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:38:14,011 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:38:14,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1556156973] [2021-11-20 23:38:14,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:38:14,012 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:38:14,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:38:14,013 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:38:14,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 23:38:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:38:15,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 3935 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-20 23:38:15,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:38:16,089 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2021-11-20 23:38:16,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:38:16,089 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:38:16,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612136521] [2021-11-20 23:38:16,090 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:38:16,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556156973] [2021-11-20 23:38:16,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556156973] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:38:16,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:38:16,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:38:16,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844682496] [2021-11-20 23:38:16,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:38:16,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:38:16,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:38:16,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:38:16,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:38:16,093 INFO L87 Difference]: Start difference. First operand 10733 states and 15551 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-20 23:38:19,061 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 23:38:23,797 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:38:25,846 WARN L515 Checker$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 23:38:29,328 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:38:31,718 WARN L515 Checker$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 23:38:32,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:38:32,466 INFO L93 Difference]: Finished difference Result 19896 states and 29002 transitions. [2021-11-20 23:38:32,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:38:32,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 205 [2021-11-20 23:38:32,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:38:32,559 INFO L225 Difference]: With dead ends: 19896 [2021-11-20 23:38:32,559 INFO L226 Difference]: Without dead ends: 19894 [2021-11-20 23:38:32,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 23:38:32,571 INFO L933 BasicCegarLoop]: 5244 mSDtfsCounter, 4339 mSDsluCounter, 15844 mSDsCounter, 0 mSdLazyCounter, 2091 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4342 SdHoareTripleChecker+Valid, 19542 SdHoareTripleChecker+Invalid, 2097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2091 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:38:32,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4342 Valid, 19542 Invalid, 2097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2091 Invalid, 5 Unknown, 0 Unchecked, 15.0s Time] [2021-11-20 23:38:32,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19894 states. [2021-11-20 23:38:34,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19894 to 19743. [2021-11-20 23:38:34,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19743 states, 11408 states have (on average 1.3141654978962132) internal successors, (14992), 12197 states have internal predecessors, (14992), 6734 states have call successors, (6734), 1616 states have call predecessors, (6734), 1589 states have return successors, (7112), 6490 states have call predecessors, (7112), 6732 states have call successors, (7112) [2021-11-20 23:38:34,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19743 states to 19743 states and 28838 transitions. [2021-11-20 23:38:34,197 INFO L78 Accepts]: Start accepts. Automaton has 19743 states and 28838 transitions. Word has length 205 [2021-11-20 23:38:34,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:38:34,197 INFO L470 AbstractCegarLoop]: Abstraction has 19743 states and 28838 transitions. [2021-11-20 23:38:34,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-20 23:38:34,198 INFO L276 IsEmpty]: Start isEmpty. Operand 19743 states and 28838 transitions. [2021-11-20 23:38:34,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-20 23:38:34,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:38:34,204 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:38:34,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 23:38:34,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:38:34,431 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:38:34,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:38:34,431 INFO L85 PathProgramCache]: Analyzing trace with hash -198322291, now seen corresponding path program 1 times [2021-11-20 23:38:34,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:38:34,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304419840] [2021-11-20 23:38:34,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:38:34,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:38:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:38:34,702 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2021-11-20 23:38:34,702 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:38:34,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304419840] [2021-11-20 23:38:34,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304419840] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:38:34,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:38:34,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 23:38:34,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916977089] [2021-11-20 23:38:34,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:38:34,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:38:34,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:38:34,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:38:34,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:38:34,705 INFO L87 Difference]: Start difference. First operand 19743 states and 28838 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-20 23:38:38,613 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:38:41,960 WARN L515 Checker$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 23:38:47,003 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:38:49,018 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:38:51,043 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:38:54,355 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:39:00,479 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 23:39:12,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:39:12,560 INFO L93 Difference]: Finished difference Result 43599 states and 68072 transitions. [2021-11-20 23:39:12,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 23:39:12,561 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 207 [2021-11-20 23:39:12,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:39:12,806 INFO L225 Difference]: With dead ends: 43599 [2021-11-20 23:39:12,806 INFO L226 Difference]: Without dead ends: 43597 [2021-11-20 23:39:12,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-20 23:39:12,832 INFO L933 BasicCegarLoop]: 3850 mSDtfsCounter, 7668 mSDsluCounter, 10334 mSDsCounter, 0 mSdLazyCounter, 14186 mSolverCounterSat, 4898 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8844 SdHoareTripleChecker+Valid, 12921 SdHoareTripleChecker+Invalid, 19090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4898 IncrementalHoareTripleChecker+Valid, 14186 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:39:12,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8844 Valid, 12921 Invalid, 19090 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4898 Valid, 14186 Invalid, 6 Unknown, 0 Unchecked, 33.9s Time] [2021-11-20 23:39:12,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43597 states. [2021-11-20 23:39:17,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43597 to 43127. [2021-11-20 23:39:17,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43127 states, 25313 states have (on average 1.3298700272587207) internal successors, (33663), 27152 states have internal predecessors, (33663), 14688 states have call successors, (14688), 3014 states have call predecessors, (14688), 3114 states have return successors, (18988), 14141 states have call predecessors, (18988), 14686 states have call successors, (18988) [2021-11-20 23:39:17,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43127 states to 43127 states and 67339 transitions. [2021-11-20 23:39:17,964 INFO L78 Accepts]: Start accepts. Automaton has 43127 states and 67339 transitions. Word has length 207 [2021-11-20 23:39:17,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:39:17,965 INFO L470 AbstractCegarLoop]: Abstraction has 43127 states and 67339 transitions. [2021-11-20 23:39:17,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-20 23:39:17,965 INFO L276 IsEmpty]: Start isEmpty. Operand 43127 states and 67339 transitions. [2021-11-20 23:39:17,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-20 23:39:17,973 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:39:17,974 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:39:17,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-20 23:39:17,974 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting cpumask_nextErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:39:17,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:39:17,975 INFO L85 PathProgramCache]: Analyzing trace with hash 332595168, now seen corresponding path program 1 times [2021-11-20 23:39:17,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:39:17,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258268708] [2021-11-20 23:39:17,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:17,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:39:18,061 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:39:18,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2001348572] [2021-11-20 23:39:18,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:18,062 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:39:18,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:39:18,067 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:39:18,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 23:39:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:39:19,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 3981 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 23:39:19,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:39:19,736 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2021-11-20 23:39:19,736 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:39:19,736 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:39:19,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258268708] [2021-11-20 23:39:19,736 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:39:19,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001348572] [2021-11-20 23:39:19,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001348572] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:39:19,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:39:19,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:39:19,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987494082] [2021-11-20 23:39:19,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:39:19,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:39:19,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:39:19,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:39:19,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:39:19,738 INFO L87 Difference]: Start difference. First operand 43127 states and 67339 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 23:39:25,524 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 23:39:30,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:39:30,168 INFO L93 Difference]: Finished difference Result 85829 states and 136196 transitions. [2021-11-20 23:39:30,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:39:30,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 214 [2021-11-20 23:39:30,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:39:30,587 INFO L225 Difference]: With dead ends: 85829 [2021-11-20 23:39:30,588 INFO L226 Difference]: Without dead ends: 42709 [2021-11-20 23:39:31,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:39:31,015 INFO L933 BasicCegarLoop]: 4184 mSDtfsCounter, 3 mSDsluCounter, 4702 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 8366 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:39:31,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 8366 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1046 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2021-11-20 23:39:31,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42709 states. [2021-11-20 23:39:35,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42709 to 42679. [2021-11-20 23:39:35,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42679 states, 25041 states have (on average 1.3312168044407173) internal successors, (33335), 26904 states have internal predecessors, (33335), 14552 states have call successors, (14552), 2990 states have call predecessors, (14552), 3074 states have return successors, (18788), 13941 states have call predecessors, (18788), 14550 states have call successors, (18788) [2021-11-20 23:39:35,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42679 states to 42679 states and 66675 transitions. [2021-11-20 23:39:35,604 INFO L78 Accepts]: Start accepts. Automaton has 42679 states and 66675 transitions. Word has length 214 [2021-11-20 23:39:35,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:39:35,605 INFO L470 AbstractCegarLoop]: Abstraction has 42679 states and 66675 transitions. [2021-11-20 23:39:35,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 23:39:35,605 INFO L276 IsEmpty]: Start isEmpty. Operand 42679 states and 66675 transitions. [2021-11-20 23:39:35,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-11-20 23:39:35,615 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:39:35,615 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:39:35,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 23:39:35,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db3e6f19-4385-4588-b4e2-613423e3d781/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-11-20 23:39:35,843 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:39:35,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:39:35,843 INFO L85 PathProgramCache]: Analyzing trace with hash 946462260, now seen corresponding path program 1 times [2021-11-20 23:39:35,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:39:35,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794565468] [2021-11-20 23:39:35,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:35,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:39:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:39:36,103 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2021-11-20 23:39:36,104 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:39:36,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794565468] [2021-11-20 23:39:36,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794565468] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:39:36,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:39:36,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:39:36,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882904752] [2021-11-20 23:39:36,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:39:36,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:39:36,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:39:36,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:39:36,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:39:36,106 INFO L87 Difference]: Start difference. First operand 42679 states and 66675 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-20 23:39:38,617 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:39:41,465 WARN L515 Checker$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 23:39:44,274 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:39:48,525 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:39:54,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:39:54,931 INFO L93 Difference]: Finished difference Result 78939 states and 124772 transitions. [2021-11-20 23:39:54,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 23:39:54,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 224 [2021-11-20 23:39:54,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:39:55,516 INFO L225 Difference]: With dead ends: 78939 [2021-11-20 23:39:55,516 INFO L226 Difference]: Without dead ends: 78937 [2021-11-20 23:39:55,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 23:39:55,551 INFO L933 BasicCegarLoop]: 5390 mSDtfsCounter, 4470 mSDsluCounter, 16558 mSDsCounter, 0 mSdLazyCounter, 2164 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4492 SdHoareTripleChecker+Valid, 20343 SdHoareTripleChecker+Invalid, 2170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2164 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:39:55,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4492 Valid, 20343 Invalid, 2170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2164 Invalid, 4 Unknown, 0 Unchecked, 11.9s Time] [2021-11-20 23:39:55,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78937 states. [2021-11-20 23:40:03,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78937 to 78780. [2021-11-20 23:40:03,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78780 states, 46439 states have (on average 1.337776437907793) internal successors, (62125), 49861 states have internal predecessors, (62125), 26926 states have call successors, (26926), 5256 states have call predecessors, (26926), 5403 states have return successors, (35543), 25802 states have call predecessors, (35543), 26924 states have call successors, (35543) [2021-11-20 23:40:04,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78780 states to 78780 states and 124594 transitions. [2021-11-20 23:40:04,260 INFO L78 Accepts]: Start accepts. Automaton has 78780 states and 124594 transitions. Word has length 224 [2021-11-20 23:40:04,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:40:04,260 INFO L470 AbstractCegarLoop]: Abstraction has 78780 states and 124594 transitions. [2021-11-20 23:40:04,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-20 23:40:04,261 INFO L276 IsEmpty]: Start isEmpty. Operand 78780 states and 124594 transitions. [2021-11-20 23:40:04,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-11-20 23:40:04,269 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:40:04,269 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:40:04,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-20 23:40:04,269 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_check_for_read_sectionErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:40:04,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:40:04,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1491227815, now seen corresponding path program 1 times [2021-11-20 23:40:04,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:40:04,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352224662] [2021-11-20 23:40:04,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:40:04,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:40:04,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:40:04,535 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 815 trivial. 0 not checked. [2021-11-20 23:40:04,535 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:40:04,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352224662] [2021-11-20 23:40:04,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352224662] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:40:04,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:40:04,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:40:04,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79593930] [2021-11-20 23:40:04,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:40:04,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:40:04,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:40:04,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:40:04,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:40:04,538 INFO L87 Difference]: Start difference. First operand 78780 states and 124594 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-20 23:40:07,105 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:40:10,023 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []