./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--video--fbdev--udlfb.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_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/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_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/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_17ac10aa-c1ef-4623-a894-9587990a3f7f/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 81dbe8069ce4dfce1c2f5ecd6b7071863ebf3cc1894dcf2fe187946b9d9f58fb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:35:51,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:35:51,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:35:51,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:35:51,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:35:51,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:35:51,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:35:51,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:35:51,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:35:51,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:35:51,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:35:51,441 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:35:51,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:35:51,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:35:51,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:35:51,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:35:51,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:35:51,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:35:51,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:35:51,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:35:51,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:35:51,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:35:51,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:35:51,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:35:51,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:35:51,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:35:51,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:35:51,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:35:51,467 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:35:51,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:35:51,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:35:51,470 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:35:51,471 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:35:51,472 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:35:51,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:35:51,473 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:35:51,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:35:51,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:35:51,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:35:51,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:35:51,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:35:51,478 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 23:35:51,504 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:35:51,504 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:35:51,505 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:35:51,505 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:35:51,506 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:35:51,506 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:35:51,506 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:35:51,507 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:35:51,507 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:35:51,507 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:35:51,507 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:35:51,508 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:35:51,508 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:35:51,508 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:35:51,508 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:35:51,509 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:35:51,509 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:35:51,509 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:35:51,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:35:51,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:35:51,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:35:51,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:35:51,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:35:51,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:35:51,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:35:51,512 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:35:51,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:35:51,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:35:51,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:35:51,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:35:51,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:35:51,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:35:51,513 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:35:51,514 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:35:51,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:35:51,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:35:51,514 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:35:51,515 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:35:51,515 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_17ac10aa-c1ef-4623-a894-9587990a3f7f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81dbe8069ce4dfce1c2f5ecd6b7071863ebf3cc1894dcf2fe187946b9d9f58fb [2021-11-20 23:35:51,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:35:51,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:35:51,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:35:51,799 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:35:51,800 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:35:51,801 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i [2021-11-20 23:35:51,873 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/data/09925cbe6/94eac0f17e334491ba1f0605129118c3/FLAG48ab6b6a0 [2021-11-20 23:35:52,930 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:35:52,931 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i [2021-11-20 23:35:52,994 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/data/09925cbe6/94eac0f17e334491ba1f0605129118c3/FLAG48ab6b6a0 [2021-11-20 23:35:53,281 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/data/09925cbe6/94eac0f17e334491ba1f0605129118c3 [2021-11-20 23:35:53,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:35:53,298 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:35:53,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:35:53,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:35:53,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:35:53,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:35:53" (1/1) ... [2021-11-20 23:35:53,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a6133a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:53, skipping insertion in model container [2021-11-20 23:35:53,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:35:53" (1/1) ... [2021-11-20 23:35:53,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:35:53,507 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:35:57,542 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375016,375029] [2021-11-20 23:35:57,545 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375161,375174] [2021-11-20 23:35:57,546 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375307,375320] [2021-11-20 23:35:57,546 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375472,375485] [2021-11-20 23:35:57,547 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375630,375643] [2021-11-20 23:35:57,547 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375788,375801] [2021-11-20 23:35:57,548 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375946,375959] [2021-11-20 23:35:57,548 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376106,376119] [2021-11-20 23:35:57,549 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376265,376278] [2021-11-20 23:35:57,549 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376404,376417] [2021-11-20 23:35:57,550 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376546,376559] [2021-11-20 23:35:57,550 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376695,376708] [2021-11-20 23:35:57,551 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376834,376847] [2021-11-20 23:35:57,551 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376989,377002] [2021-11-20 23:35:57,551 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377149,377162] [2021-11-20 23:35:57,552 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377300,377313] [2021-11-20 23:35:57,552 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377451,377464] [2021-11-20 23:35:57,553 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377603,377616] [2021-11-20 23:35:57,553 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377752,377765] [2021-11-20 23:35:57,554 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377900,377913] [2021-11-20 23:35:57,554 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378057,378070] [2021-11-20 23:35:57,555 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378206,378219] [2021-11-20 23:35:57,555 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378362,378375] [2021-11-20 23:35:57,556 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378515,378528] [2021-11-20 23:35:57,556 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378661,378674] [2021-11-20 23:35:57,556 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378804,378817] [2021-11-20 23:35:57,557 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378956,378969] [2021-11-20 23:35:57,557 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379102,379115] [2021-11-20 23:35:57,558 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379247,379260] [2021-11-20 23:35:57,558 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379401,379414] [2021-11-20 23:35:57,559 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379552,379565] [2021-11-20 23:35:57,559 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379707,379720] [2021-11-20 23:35:57,560 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379859,379872] [2021-11-20 23:35:57,560 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380014,380027] [2021-11-20 23:35:57,561 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380178,380191] [2021-11-20 23:35:57,561 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380334,380347] [2021-11-20 23:35:57,561 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380498,380511] [2021-11-20 23:35:57,562 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380640,380653] [2021-11-20 23:35:57,562 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380798,380811] [2021-11-20 23:35:57,563 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380965,380978] [2021-11-20 23:35:57,563 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381124,381137] [2021-11-20 23:35:57,564 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381283,381296] [2021-11-20 23:35:57,564 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381432,381445] [2021-11-20 23:35:57,584 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381579,381592] [2021-11-20 23:35:57,584 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381718,381731] [2021-11-20 23:35:57,585 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381881,381894] [2021-11-20 23:35:57,585 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382047,382060] [2021-11-20 23:35:57,586 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382211,382224] [2021-11-20 23:35:57,586 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382376,382389] [2021-11-20 23:35:57,587 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382541,382554] [2021-11-20 23:35:57,587 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382707,382720] [2021-11-20 23:35:57,588 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382872,382885] [2021-11-20 23:35:57,588 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383039,383052] [2021-11-20 23:35:57,589 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383199,383212] [2021-11-20 23:35:57,589 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383361,383374] [2021-11-20 23:35:57,590 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383520,383533] [2021-11-20 23:35:57,590 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383666,383679] [2021-11-20 23:35:57,591 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383809,383822] [2021-11-20 23:35:57,591 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383953,383966] [2021-11-20 23:35:57,592 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384096,384109] [2021-11-20 23:35:57,592 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384240,384253] [2021-11-20 23:35:57,593 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384381,384394] [2021-11-20 23:35:57,593 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384519,384532] [2021-11-20 23:35:57,594 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384677,384690] [2021-11-20 23:35:57,594 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384836,384849] [2021-11-20 23:35:57,595 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384992,385005] [2021-11-20 23:35:57,595 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385141,385154] [2021-11-20 23:35:57,595 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385293,385306] [2021-11-20 23:35:57,596 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385444,385457] [2021-11-20 23:35:57,596 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385593,385606] [2021-11-20 23:35:57,597 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385745,385758] [2021-11-20 23:35:57,597 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385893,385906] [2021-11-20 23:35:57,598 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386046,386059] [2021-11-20 23:35:57,598 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386197,386210] [2021-11-20 23:35:57,599 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386347,386360] [2021-11-20 23:35:57,599 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386494,386507] [2021-11-20 23:35:57,600 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386645,386658] [2021-11-20 23:35:57,600 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386796,386809] [2021-11-20 23:35:57,601 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386944,386957] [2021-11-20 23:35:57,601 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387110,387123] [2021-11-20 23:35:57,602 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387279,387292] [2021-11-20 23:35:57,602 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387446,387459] [2021-11-20 23:35:57,602 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387614,387627] [2021-11-20 23:35:57,603 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387764,387777] [2021-11-20 23:35:57,603 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387911,387924] [2021-11-20 23:35:57,604 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388072,388085] [2021-11-20 23:35:57,604 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388242,388255] [2021-11-20 23:35:57,605 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388404,388417] [2021-11-20 23:35:57,624 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:35:57,652 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:35:58,012 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375016,375029] [2021-11-20 23:35:58,016 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375161,375174] [2021-11-20 23:35:58,016 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375307,375320] [2021-11-20 23:35:58,016 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375472,375485] [2021-11-20 23:35:58,017 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375630,375643] [2021-11-20 23:35:58,018 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375788,375801] [2021-11-20 23:35:58,019 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375946,375959] [2021-11-20 23:35:58,019 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376106,376119] [2021-11-20 23:35:58,020 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376265,376278] [2021-11-20 23:35:58,021 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376404,376417] [2021-11-20 23:35:58,022 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376546,376559] [2021-11-20 23:35:58,023 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376695,376708] [2021-11-20 23:35:58,023 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376834,376847] [2021-11-20 23:35:58,023 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376989,377002] [2021-11-20 23:35:58,024 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377149,377162] [2021-11-20 23:35:58,024 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377300,377313] [2021-11-20 23:35:58,025 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377451,377464] [2021-11-20 23:35:58,025 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377603,377616] [2021-11-20 23:35:58,025 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377752,377765] [2021-11-20 23:35:58,026 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377900,377913] [2021-11-20 23:35:58,026 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378057,378070] [2021-11-20 23:35:58,027 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378206,378219] [2021-11-20 23:35:58,028 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378362,378375] [2021-11-20 23:35:58,028 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378515,378528] [2021-11-20 23:35:58,029 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378661,378674] [2021-11-20 23:35:58,029 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378804,378817] [2021-11-20 23:35:58,030 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378956,378969] [2021-11-20 23:35:58,030 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379102,379115] [2021-11-20 23:35:58,031 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379247,379260] [2021-11-20 23:35:58,031 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379401,379414] [2021-11-20 23:35:58,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379552,379565] [2021-11-20 23:35:58,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379707,379720] [2021-11-20 23:35:58,033 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379859,379872] [2021-11-20 23:35:58,033 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380014,380027] [2021-11-20 23:35:58,034 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380178,380191] [2021-11-20 23:35:58,034 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380334,380347] [2021-11-20 23:35:58,035 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380498,380511] [2021-11-20 23:35:58,036 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380640,380653] [2021-11-20 23:35:58,036 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380798,380811] [2021-11-20 23:35:58,037 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380965,380978] [2021-11-20 23:35:58,038 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381124,381137] [2021-11-20 23:35:58,039 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381283,381296] [2021-11-20 23:35:58,039 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381432,381445] [2021-11-20 23:35:58,040 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381579,381592] [2021-11-20 23:35:58,040 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381718,381731] [2021-11-20 23:35:58,040 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381881,381894] [2021-11-20 23:35:58,041 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382047,382060] [2021-11-20 23:35:58,042 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382211,382224] [2021-11-20 23:35:58,046 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382376,382389] [2021-11-20 23:35:58,047 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382541,382554] [2021-11-20 23:35:58,047 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382707,382720] [2021-11-20 23:35:58,048 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382872,382885] [2021-11-20 23:35:58,048 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383039,383052] [2021-11-20 23:35:58,049 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383199,383212] [2021-11-20 23:35:58,050 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383361,383374] [2021-11-20 23:35:58,051 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383520,383533] [2021-11-20 23:35:58,053 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383666,383679] [2021-11-20 23:35:58,054 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383809,383822] [2021-11-20 23:35:58,054 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383953,383966] [2021-11-20 23:35:58,055 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384096,384109] [2021-11-20 23:35:58,055 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384240,384253] [2021-11-20 23:35:58,055 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384381,384394] [2021-11-20 23:35:58,056 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384519,384532] [2021-11-20 23:35:58,056 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384677,384690] [2021-11-20 23:35:58,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384836,384849] [2021-11-20 23:35:58,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384992,385005] [2021-11-20 23:35:58,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385141,385154] [2021-11-20 23:35:58,058 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385293,385306] [2021-11-20 23:35:58,058 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385444,385457] [2021-11-20 23:35:58,059 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385593,385606] [2021-11-20 23:35:58,059 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385745,385758] [2021-11-20 23:35:58,059 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385893,385906] [2021-11-20 23:35:58,060 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386046,386059] [2021-11-20 23:35:58,060 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386197,386210] [2021-11-20 23:35:58,061 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386347,386360] [2021-11-20 23:35:58,061 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386494,386507] [2021-11-20 23:35:58,061 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386645,386658] [2021-11-20 23:35:58,062 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386796,386809] [2021-11-20 23:35:58,062 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386944,386957] [2021-11-20 23:35:58,062 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387110,387123] [2021-11-20 23:35:58,063 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387279,387292] [2021-11-20 23:35:58,063 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387446,387459] [2021-11-20 23:35:58,064 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387614,387627] [2021-11-20 23:35:58,064 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387764,387777] [2021-11-20 23:35:58,064 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387911,387924] [2021-11-20 23:35:58,065 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388072,388085] [2021-11-20 23:35:58,065 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388242,388255] [2021-11-20 23:35:58,065 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388404,388417] [2021-11-20 23:35:58,070 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:35:58,389 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:35:58,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:58 WrapperNode [2021-11-20 23:35:58,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:35:58,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:35:58,391 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:35:58,391 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:35:58,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:58" (1/1) ... [2021-11-20 23:35:58,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:58" (1/1) ... [2021-11-20 23:35:58,723 INFO L137 Inliner]: procedures = 635, calls = 2105, calls flagged for inlining = 297, calls inlined = 221, statements flattened = 4947 [2021-11-20 23:35:58,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:35:58,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:35:58,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:35:58,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:35:58,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:58" (1/1) ... [2021-11-20 23:35:58,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:58" (1/1) ... [2021-11-20 23:35:58,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:58" (1/1) ... [2021-11-20 23:35:58,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:58" (1/1) ... [2021-11-20 23:35:59,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:58" (1/1) ... [2021-11-20 23:35:59,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:58" (1/1) ... [2021-11-20 23:35:59,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:58" (1/1) ... [2021-11-20 23:35:59,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:35:59,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:35:59,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:35:59,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:35:59,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:58" (1/1) ... [2021-11-20 23:35:59,124 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:35:59,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:35:59,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:35:59,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:35:59,197 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-20 23:35:59,197 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-20 23:35:59,197 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_urb_completion [2021-11-20 23:35:59,198 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_urb_completion [2021-11-20 23:35:59,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-20 23:35:59,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-20 23:35:59,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 23:35:59,198 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 23:35:59,199 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_framebuffer_work [2021-11-20 23:35:59,199 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_framebuffer_work [2021-11-20 23:35:59,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_5_23 [2021-11-20 23:35:59,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_5_23 [2021-11-20 23:35:59,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 23:35:59,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 23:35:59,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-20 23:35:59,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-20 23:35:59,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-20 23:35:59,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-20 23:35:59,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_fb_info [2021-11-20 23:35:59,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_fb_info [2021-11-20 23:35:59,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-20 23:35:59,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-20 23:35:59,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-20 23:35:59,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-20 23:35:59,201 INFO L130 BoogieDeclarations]: Found specification of procedure metrics_reset_store [2021-11-20 23:35:59,201 INFO L138 BoogieDeclarations]: Found implementation of procedure metrics_reset_store [2021-11-20 23:35:59,202 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-20 23:35:59,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-20 23:35:59,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-20 23:35:59,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_urb_list [2021-11-20 23:35:59,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_urb_list [2021-11-20 23:35:59,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 23:35:59,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 23:35:59,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-20 23:35:59,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-20 23:35:59,203 INFO L130 BoogieDeclarations]: Found specification of procedure fb_add_videomode [2021-11-20 23:35:59,203 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_add_videomode [2021-11-20 23:35:59,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:35:59,204 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2021-11-20 23:35:59,204 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2021-11-20 23:35:59,204 INFO L130 BoogieDeclarations]: Found specification of procedure fb_edid_to_monspecs [2021-11-20 23:35:59,204 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_edid_to_monspecs [2021-11-20 23:35:59,204 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-20 23:35:59,205 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-20 23:35:59,205 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_setup_modes [2021-11-20 23:35:59,205 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_setup_modes [2021-11-20 23:35:59,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-20 23:35:59,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-20 23:35:59,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 23:35:59,206 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-20 23:35:59,206 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-20 23:35:59,206 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_vidreg_lock [2021-11-20 23:35:59,206 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_vidreg_lock [2021-11-20 23:35:59,206 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-20 23:35:59,206 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-20 23:35:59,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 23:35:59,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-20 23:35:59,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-20 23:35:59,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-20 23:35:59,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-20 23:35:59,207 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-11-20 23:35:59,208 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-11-20 23:35:59,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-20 23:35:59,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-20 23:35:59,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:35:59,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-20 23:35:59,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-20 23:35:59,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-20 23:35:59,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-20 23:35:59,209 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_framebuffer [2021-11-20 23:35:59,209 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_framebuffer [2021-11-20 23:35:59,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 23:35:59,209 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 23:35:59,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-20 23:35:59,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-20 23:35:59,210 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_var_color_format [2021-11-20 23:35:59,210 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_var_color_format [2021-11-20 23:35:59,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-20 23:35:59,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-20 23:35:59,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-20 23:35:59,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-20 23:35:59,211 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-20 23:35:59,211 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-20 23:35:59,211 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-20 23:35:59,211 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-20 23:35:59,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-20 23:35:59,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-20 23:35:59,212 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-20 23:35:59,212 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-20 23:35:59,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-20 23:35:59,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-20 23:35:59,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:35:59,213 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_16 [2021-11-20 23:35:59,213 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_16 [2021-11-20 23:35:59,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:35:59,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 23:35:59,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 23:35:59,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:35:59,214 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 23:35:59,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 23:35:59,214 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-20 23:35:59,214 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-20 23:35:59,214 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register [2021-11-20 23:35:59,215 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register [2021-11-20 23:35:59,215 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-20 23:35:59,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-20 23:35:59,215 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-11-20 23:35:59,215 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-11-20 23:35:59,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-20 23:35:59,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-20 23:35:59,216 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_init_framebuffer_work [2021-11-20 23:35:59,216 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_init_framebuffer_work [2021-11-20 23:35:59,216 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-20 23:35:59,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-20 23:35:59,216 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 23:35:59,217 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 23:35:59,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-20 23:35:59,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-20 23:35:59,217 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-11-20 23:35:59,217 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-11-20 23:35:59,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_struct_fb_ops_dummy_resourceless_instance_5 [2021-11-20 23:35:59,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_struct_fb_ops_dummy_resourceless_instance_5 [2021-11-20 23:35:59,218 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-11-20 23:35:59,218 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-11-20 23:35:59,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:35:59,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:35:59,218 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-20 23:35:59,218 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-20 23:35:59,219 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_submit_urb [2021-11-20 23:35:59,219 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_submit_urb [2021-11-20 23:35:59,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 23:35:59,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 23:35:59,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 23:35:59,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 23:35:59,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-20 23:35:59,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-20 23:35:59,220 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_vidreg_unlock [2021-11-20 23:35:59,220 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_vidreg_unlock [2021-11-20 23:35:59,220 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_check_var [2021-11-20 23:35:59,220 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_check_var [2021-11-20 23:35:59,221 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_is_valid_mode [2021-11-20 23:35:59,221 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_is_valid_mode [2021-11-20 23:35:59,221 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_lfsr16 [2021-11-20 23:35:59,221 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_lfsr16 [2021-11-20 23:35:59,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-20 23:35:59,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-20 23:35:59,222 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modelist [2021-11-20 23:35:59,222 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modelist [2021-11-20 23:35:59,222 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-11-20 23:35:59,222 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-11-20 23:35:59,222 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-20 23:35:59,222 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-20 23:35:59,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 23:35:59,223 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 23:35:59,223 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_release [2021-11-20 23:35:59,223 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_release [2021-11-20 23:35:59,223 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_get_urb [2021-11-20 23:35:59,223 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_get_urb [2021-11-20 23:35:59,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_framebuffer_103 [2021-11-20 23:35:59,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_framebuffer_103 [2021-11-20 23:35:59,224 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_video_mode [2021-11-20 23:35:59,224 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_video_mode [2021-11-20 23:35:59,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-20 23:35:59,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-20 23:35:59,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-20 23:35:59,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-20 23:35:59,225 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_blank [2021-11-20 23:35:59,225 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_blank [2021-11-20 23:35:59,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-20 23:35:59,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-20 23:35:59,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:35:59,225 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-20 23:35:59,226 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-20 23:35:59,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-20 23:35:59,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-20 23:35:59,226 INFO L130 BoogieDeclarations]: Found specification of procedure get_cycles [2021-11-20 23:35:59,226 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cycles [2021-11-20 23:35:59,226 INFO L130 BoogieDeclarations]: Found specification of procedure up [2021-11-20 23:35:59,227 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2021-11-20 23:35:59,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:35:59,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2021-11-20 23:35:59,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2021-11-20 23:35:59,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 23:35:59,227 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-20 23:35:59,228 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-20 23:35:59,228 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-20 23:35:59,228 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-20 23:35:59,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-20 23:35:59,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-20 23:35:59,228 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-20 23:35:59,229 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-20 23:35:59,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-20 23:35:59,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-20 23:35:59,229 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-20 23:35:59,229 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-20 23:35:59,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-20 23:35:59,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-20 23:35:59,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-20 23:35:59,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-20 23:35:59,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-20 23:35:59,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-20 23:35:59,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-20 23:35:59,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-20 23:35:59,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-20 23:35:59,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-20 23:35:59,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-11-20 23:35:59,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-11-20 23:35:59,231 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-20 23:35:59,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-20 23:35:59,232 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-20 23:35:59,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-20 23:35:59,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-20 23:35:59,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-20 23:35:59,232 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 23:35:59,232 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 23:35:59,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-20 23:35:59,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-20 23:35:59,233 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_handle_damage [2021-11-20 23:35:59,233 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_handle_damage [2021-11-20 23:35:59,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:35:59,233 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_render_hline [2021-11-20 23:35:59,233 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_render_hline [2021-11-20 23:35:59,234 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_usb_disconnect [2021-11-20 23:35:59,234 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_usb_disconnect [2021-11-20 23:35:59,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-20 23:35:59,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-20 23:35:59,234 INFO L130 BoogieDeclarations]: Found specification of procedure edid_show [2021-11-20 23:35:59,234 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_show [2021-11-20 23:35:59,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 23:35:59,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 23:35:59,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-20 23:35:59,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-20 23:35:59,235 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_blanking [2021-11-20 23:35:59,235 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_blanking [2021-11-20 23:35:59,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-20 23:35:59,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-20 23:35:59,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-20 23:35:59,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-20 23:35:59,236 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-20 23:35:59,236 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-20 23:35:59,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_register_13_2 [2021-11-20 23:35:59,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_register_13_2 [2021-11-20 23:35:59,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_framebuffer [2021-11-20 23:35:59,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_framebuffer [2021-11-20 23:35:59,237 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_set_par [2021-11-20 23:35:59,237 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_set_par [2021-11-20 23:35:59,237 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-20 23:35:59,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:35:59,238 INFO L130 BoogieDeclarations]: Found specification of procedure edid_store [2021-11-20 23:35:59,238 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_store [2021-11-20 23:36:00,149 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:36:00,153 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:36:00,362 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 23:36:13,820 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:36:14,420 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:36:14,421 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 23:36:14,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:36:14 BoogieIcfgContainer [2021-11-20 23:36:14,426 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:36:14,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:36:14,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:36:14,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:36:14,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:35:53" (1/3) ... [2021-11-20 23:36:14,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ee8264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:36:14, skipping insertion in model container [2021-11-20 23:36:14,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:58" (2/3) ... [2021-11-20 23:36:14,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ee8264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:36:14, skipping insertion in model container [2021-11-20 23:36:14,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:36:14" (3/3) ... [2021-11-20 23:36:14,438 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i [2021-11-20 23:36:14,446 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:36:14,446 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2021-11-20 23:36:14,513 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:36:14,520 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 23:36:14,521 INFO L340 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2021-11-20 23:36:14,595 INFO L276 IsEmpty]: Start isEmpty. Operand has 1346 states, 770 states have (on average 1.3207792207792208) internal successors, (1017), 847 states have internal predecessors, (1017), 427 states have call successors, (427), 116 states have call predecessors, (427), 115 states have return successors, (419), 405 states have call predecessors, (419), 419 states have call successors, (419) [2021-11-20 23:36:14,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-20 23:36:14,602 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:36:14,603 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:36:14,603 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:36:14,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:36:14,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1121809527, now seen corresponding path program 1 times [2021-11-20 23:36:14,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:36:14,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257973778] [2021-11-20 23:36:14,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:14,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:36:15,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:36:15,333 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:36:15,334 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:36:15,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257973778] [2021-11-20 23:36:15,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257973778] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:36:15,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:36:15,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:36:15,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024677850] [2021-11-20 23:36:15,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:36:15,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:36:15,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:36:15,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:36:15,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:36:15,386 INFO L87 Difference]: Start difference. First operand has 1346 states, 770 states have (on average 1.3207792207792208) internal successors, (1017), 847 states have internal predecessors, (1017), 427 states have call successors, (427), 116 states have call predecessors, (427), 115 states have return successors, (419), 405 states have call predecessors, (419), 419 states have call successors, (419) 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, (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 23:36:18,273 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 23:36:20,309 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 23:36:22,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:36:22,294 INFO L93 Difference]: Finished difference Result 2851 states and 4065 transitions. [2021-11-20 23:36:22,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:36:22,296 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, (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 51 [2021-11-20 23:36:22,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:36:22,327 INFO L225 Difference]: With dead ends: 2851 [2021-11-20 23:36:22,327 INFO L226 Difference]: Without dead ends: 1525 [2021-11-20 23:36:22,342 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 23:36:22,345 INFO L933 BasicCegarLoop]: 1738 mSDtfsCounter, 1801 mSDsluCounter, 2251 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1809 SdHoareTripleChecker+Valid, 3682 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:36:22,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1809 Valid, 3682 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 577 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2021-11-20 23:36:22,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1525 states. [2021-11-20 23:36:22,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1525 to 1514. [2021-11-20 23:36:22,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1514 states, 878 states have (on average 1.2744874715261958) internal successors, (1119), 950 states have internal predecessors, (1119), 463 states have call successors, (463), 142 states have call predecessors, (463), 141 states have return successors, (461), 446 states have call predecessors, (461), 461 states have call successors, (461) [2021-11-20 23:36:22,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 2043 transitions. [2021-11-20 23:36:22,526 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 2043 transitions. Word has length 51 [2021-11-20 23:36:22,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:36:22,527 INFO L470 AbstractCegarLoop]: Abstraction has 1514 states and 2043 transitions. [2021-11-20 23:36:22,528 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, (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 23:36:22,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 2043 transitions. [2021-11-20 23:36:22,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-20 23:36:22,531 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:36:22,532 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:36:22,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:36:22,532 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:36:22,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:36:22,533 INFO L85 PathProgramCache]: Analyzing trace with hash -606565089, now seen corresponding path program 1 times [2021-11-20 23:36:22,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:36:22,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649731855] [2021-11-20 23:36:22,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:22,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:36:22,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:36:22,718 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:36:22,718 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:36:22,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649731855] [2021-11-20 23:36:22,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649731855] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:36:22,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:36:22,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:36:22,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380342322] [2021-11-20 23:36:22,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:36:22,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:36:22,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:36:22,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:36:22,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:36:22,722 INFO L87 Difference]: Start difference. First operand 1514 states and 2043 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, (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 23:36:25,442 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 23:36:27,492 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 23:36:29,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:36:29,180 INFO L93 Difference]: Finished difference Result 1525 states and 2053 transitions. [2021-11-20 23:36:29,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:36:29,180 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, (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 56 [2021-11-20 23:36:29,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:36:29,195 INFO L225 Difference]: With dead ends: 1525 [2021-11-20 23:36:29,195 INFO L226 Difference]: Without dead ends: 1523 [2021-11-20 23:36:29,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:36:29,197 INFO L933 BasicCegarLoop]: 1714 mSDtfsCounter, 1775 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1783 SdHoareTripleChecker+Valid, 3632 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:36:29,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1783 Valid, 3632 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 577 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2021-11-20 23:36:29,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2021-11-20 23:36:29,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1512. [2021-11-20 23:36:29,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 877 states have (on average 1.273660205245154) internal successors, (1117), 948 states have internal predecessors, (1117), 463 states have call successors, (463), 142 states have call predecessors, (463), 141 states have return successors, (461), 446 states have call predecessors, (461), 461 states have call successors, (461) [2021-11-20 23:36:29,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2041 transitions. [2021-11-20 23:36:29,294 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2041 transitions. Word has length 56 [2021-11-20 23:36:29,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:36:29,295 INFO L470 AbstractCegarLoop]: Abstraction has 1512 states and 2041 transitions. [2021-11-20 23:36:29,295 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, (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 23:36:29,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2041 transitions. [2021-11-20 23:36:29,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-20 23:36:29,298 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:36:29,298 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:36:29,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 23:36:29,298 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:36:29,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:36:29,299 INFO L85 PathProgramCache]: Analyzing trace with hash -188187471, now seen corresponding path program 1 times [2021-11-20 23:36:29,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:36:29,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622205472] [2021-11-20 23:36:29,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:29,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:36:29,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:36:29,651 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:36:29,651 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:36:29,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622205472] [2021-11-20 23:36:29,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622205472] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:36:29,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:36:29,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:36:29,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481485734] [2021-11-20 23:36:29,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:36:29,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:36:29,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:36:29,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:36:29,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:36:29,654 INFO L87 Difference]: Start difference. First operand 1512 states and 2041 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, (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 23:36:33,376 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:36:35,437 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 23:36:37,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:36:37,332 INFO L93 Difference]: Finished difference Result 1523 states and 2051 transitions. [2021-11-20 23:36:37,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:36:37,333 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, (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 61 [2021-11-20 23:36:37,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:36:37,346 INFO L225 Difference]: With dead ends: 1523 [2021-11-20 23:36:37,346 INFO L226 Difference]: Without dead ends: 1521 [2021-11-20 23:36:37,347 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 23:36:37,348 INFO L933 BasicCegarLoop]: 1712 mSDtfsCounter, 1775 mSDsluCounter, 2224 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1781 SdHoareTripleChecker+Valid, 3628 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:36:37,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1781 Valid, 3628 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 578 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2021-11-20 23:36:37,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2021-11-20 23:36:37,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1510. [2021-11-20 23:36:37,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 876 states have (on average 1.2728310502283104) internal successors, (1115), 946 states have internal predecessors, (1115), 463 states have call successors, (463), 142 states have call predecessors, (463), 141 states have return successors, (461), 446 states have call predecessors, (461), 461 states have call successors, (461) [2021-11-20 23:36:37,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 2039 transitions. [2021-11-20 23:36:37,452 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 2039 transitions. Word has length 61 [2021-11-20 23:36:37,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:36:37,453 INFO L470 AbstractCegarLoop]: Abstraction has 1510 states and 2039 transitions. [2021-11-20 23:36:37,453 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, (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 23:36:37,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 2039 transitions. [2021-11-20 23:36:37,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-20 23:36:37,455 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:36:37,456 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:36:37,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 23:36:37,456 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:36:37,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:36:37,457 INFO L85 PathProgramCache]: Analyzing trace with hash 616600111, now seen corresponding path program 1 times [2021-11-20 23:36:37,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:36:37,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63771435] [2021-11-20 23:36:37,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:37,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:36:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:36:37,630 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:36:37,630 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:36:37,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63771435] [2021-11-20 23:36:37,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63771435] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:36:37,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:36:37,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:36:37,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594455336] [2021-11-20 23:36:37,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:36:37,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:36:37,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:36:37,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:36:37,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:36:37,633 INFO L87 Difference]: Start difference. First operand 1510 states and 2039 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, (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 23:36:40,620 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 23:36:42,666 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 23:36:44,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:36:44,565 INFO L93 Difference]: Finished difference Result 1521 states and 2049 transitions. [2021-11-20 23:36:44,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:36:44,566 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, (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 66 [2021-11-20 23:36:44,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:36:44,580 INFO L225 Difference]: With dead ends: 1521 [2021-11-20 23:36:44,580 INFO L226 Difference]: Without dead ends: 1519 [2021-11-20 23:36:44,581 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 23:36:44,582 INFO L933 BasicCegarLoop]: 1710 mSDtfsCounter, 1769 mSDsluCounter, 2220 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1777 SdHoareTripleChecker+Valid, 3624 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:36:44,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1777 Valid, 3624 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 575 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2021-11-20 23:36:44,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2021-11-20 23:36:44,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1508. [2021-11-20 23:36:44,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1508 states, 875 states have (on average 1.272) internal successors, (1113), 944 states have internal predecessors, (1113), 463 states have call successors, (463), 142 states have call predecessors, (463), 141 states have return successors, (461), 446 states have call predecessors, (461), 461 states have call successors, (461) [2021-11-20 23:36:44,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1508 states to 1508 states and 2037 transitions. [2021-11-20 23:36:44,675 INFO L78 Accepts]: Start accepts. Automaton has 1508 states and 2037 transitions. Word has length 66 [2021-11-20 23:36:44,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:36:44,676 INFO L470 AbstractCegarLoop]: Abstraction has 1508 states and 2037 transitions. [2021-11-20 23:36:44,676 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, (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 23:36:44,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1508 states and 2037 transitions. [2021-11-20 23:36:44,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-20 23:36:44,678 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:36:44,678 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:36:44,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 23:36:44,679 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:36:44,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:36:44,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1498869610, now seen corresponding path program 1 times [2021-11-20 23:36:44,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:36:44,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002676442] [2021-11-20 23:36:44,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:44,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:36:44,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:36:44,820 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:36:44,820 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:36:44,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002676442] [2021-11-20 23:36:44,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002676442] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:36:44,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:36:44,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:36:44,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984585717] [2021-11-20 23:36:44,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:36:44,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:36:44,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:36:44,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:36:44,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:36:44,823 INFO L87 Difference]: Start difference. First operand 1508 states and 2037 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, (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 23:36:48,688 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:36:50,732 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 23:36:52,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:36:52,436 INFO L93 Difference]: Finished difference Result 1519 states and 2047 transitions. [2021-11-20 23:36:52,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:36:52,437 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, (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 71 [2021-11-20 23:36:52,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:36:52,447 INFO L225 Difference]: With dead ends: 1519 [2021-11-20 23:36:52,448 INFO L226 Difference]: Without dead ends: 1517 [2021-11-20 23:36:52,448 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 23:36:52,449 INFO L933 BasicCegarLoop]: 1708 mSDtfsCounter, 1769 mSDsluCounter, 2219 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1775 SdHoareTripleChecker+Valid, 3620 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:36:52,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1775 Valid, 3620 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 576 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2021-11-20 23:36:52,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2021-11-20 23:36:52,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 1506. [2021-11-20 23:36:52,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 874 states have (on average 1.27116704805492) internal successors, (1111), 942 states have internal predecessors, (1111), 463 states have call successors, (463), 142 states have call predecessors, (463), 141 states have return successors, (461), 446 states have call predecessors, (461), 461 states have call successors, (461) [2021-11-20 23:36:52,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2035 transitions. [2021-11-20 23:36:52,544 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2035 transitions. Word has length 71 [2021-11-20 23:36:52,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:36:52,545 INFO L470 AbstractCegarLoop]: Abstraction has 1506 states and 2035 transitions. [2021-11-20 23:36:52,545 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, (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 23:36:52,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2035 transitions. [2021-11-20 23:36:52,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-20 23:36:52,547 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:36:52,547 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:36:52,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 23:36:52,548 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:36:52,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:36:52,548 INFO L85 PathProgramCache]: Analyzing trace with hash 557915096, now seen corresponding path program 1 times [2021-11-20 23:36:52,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:36:52,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698910972] [2021-11-20 23:36:52,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:52,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:36:52,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:36:52,732 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:36:52,732 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:36:52,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698910972] [2021-11-20 23:36:52,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698910972] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:36:52,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:36:52,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:36:52,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274779716] [2021-11-20 23:36:52,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:36:52,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:36:52,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:36:52,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:36:52,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:36:52,735 INFO L87 Difference]: Start difference. First operand 1506 states and 2035 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, (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 23:36:55,729 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 23:36:57,765 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 23:36:59,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:36:59,273 INFO L93 Difference]: Finished difference Result 1517 states and 2045 transitions. [2021-11-20 23:36:59,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:36:59,274 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, (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 76 [2021-11-20 23:36:59,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:36:59,284 INFO L225 Difference]: With dead ends: 1517 [2021-11-20 23:36:59,285 INFO L226 Difference]: Without dead ends: 1515 [2021-11-20 23:36:59,286 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 23:36:59,287 INFO L933 BasicCegarLoop]: 1706 mSDtfsCounter, 1763 mSDsluCounter, 2216 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1771 SdHoareTripleChecker+Valid, 3616 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:36:59,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1771 Valid, 3616 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 575 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2021-11-20 23:36:59,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2021-11-20 23:36:59,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1504. [2021-11-20 23:36:59,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1504 states, 873 states have (on average 1.270332187857961) internal successors, (1109), 940 states have internal predecessors, (1109), 463 states have call successors, (463), 142 states have call predecessors, (463), 141 states have return successors, (461), 446 states have call predecessors, (461), 461 states have call successors, (461) [2021-11-20 23:36:59,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 2033 transitions. [2021-11-20 23:36:59,387 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 2033 transitions. Word has length 76 [2021-11-20 23:36:59,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:36:59,387 INFO L470 AbstractCegarLoop]: Abstraction has 1504 states and 2033 transitions. [2021-11-20 23:36:59,387 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, (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 23:36:59,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 2033 transitions. [2021-11-20 23:36:59,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-20 23:36:59,391 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:36:59,392 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:36:59,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 23:36:59,392 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:36:59,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:36:59,393 INFO L85 PathProgramCache]: Analyzing trace with hash 756145317, now seen corresponding path program 1 times [2021-11-20 23:36:59,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:36:59,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140043511] [2021-11-20 23:36:59,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:59,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:36:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:36:59,556 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:36:59,556 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:36:59,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140043511] [2021-11-20 23:36:59,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140043511] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:36:59,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:36:59,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:36:59,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799303724] [2021-11-20 23:36:59,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:36:59,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:36:59,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:36:59,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:36:59,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:36:59,559 INFO L87 Difference]: Start difference. First operand 1504 states and 2033 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, (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 23:37:01,363 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:37:03,375 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:37:05,426 WARN L515 Checker$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 23:37:06,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:37:06,897 INFO L93 Difference]: Finished difference Result 1515 states and 2043 transitions. [2021-11-20 23:37:06,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:37:06,898 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, (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 81 [2021-11-20 23:37:06,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:37:06,907 INFO L225 Difference]: With dead ends: 1515 [2021-11-20 23:37:06,907 INFO L226 Difference]: Without dead ends: 1513 [2021-11-20 23:37:06,909 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 23:37:06,909 INFO L933 BasicCegarLoop]: 1704 mSDtfsCounter, 1763 mSDsluCounter, 2216 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1769 SdHoareTripleChecker+Valid, 3612 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:37:06,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1769 Valid, 3612 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 578 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2021-11-20 23:37:06,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2021-11-20 23:37:06,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1502. [2021-11-20 23:37:06,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 872 states have (on average 1.2694954128440368) internal successors, (1107), 938 states have internal predecessors, (1107), 463 states have call successors, (463), 142 states have call predecessors, (463), 141 states have return successors, (461), 446 states have call predecessors, (461), 461 states have call successors, (461) [2021-11-20 23:37:07,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 2031 transitions. [2021-11-20 23:37:07,030 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 2031 transitions. Word has length 81 [2021-11-20 23:37:07,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:37:07,032 INFO L470 AbstractCegarLoop]: Abstraction has 1502 states and 2031 transitions. [2021-11-20 23:37:07,032 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, (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 23:37:07,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 2031 transitions. [2021-11-20 23:37:07,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-20 23:37:07,036 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:37:07,037 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:37:07,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 23:37:07,037 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:37:07,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:37:07,040 INFO L85 PathProgramCache]: Analyzing trace with hash -224579477, now seen corresponding path program 1 times [2021-11-20 23:37:07,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:37:07,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212914387] [2021-11-20 23:37:07,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:37:07,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:37:07,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:37:07,202 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:37:07,202 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:37:07,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212914387] [2021-11-20 23:37:07,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212914387] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:37:07,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:37:07,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:37:07,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109346023] [2021-11-20 23:37:07,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:37:07,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:37:07,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:37:07,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:37:07,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:37:07,205 INFO L87 Difference]: Start difference. First operand 1502 states and 2031 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (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 23:37:10,310 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:37:12,355 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:37:14,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:37:14,238 INFO L93 Difference]: Finished difference Result 1513 states and 2041 transitions. [2021-11-20 23:37:14,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:37:14,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (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 86 [2021-11-20 23:37:14,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:37:14,249 INFO L225 Difference]: With dead ends: 1513 [2021-11-20 23:37:14,250 INFO L226 Difference]: Without dead ends: 1511 [2021-11-20 23:37:14,251 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 23:37:14,251 INFO L933 BasicCegarLoop]: 1702 mSDtfsCounter, 1761 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1769 SdHoareTripleChecker+Valid, 3604 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:37:14,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1769 Valid, 3604 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 577 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2021-11-20 23:37:14,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1511 states. [2021-11-20 23:37:14,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1511 to 1500. [2021-11-20 23:37:14,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 871 states have (on average 1.2686567164179106) internal successors, (1105), 936 states have internal predecessors, (1105), 463 states have call successors, (463), 142 states have call predecessors, (463), 141 states have return successors, (461), 446 states have call predecessors, (461), 461 states have call successors, (461) [2021-11-20 23:37:14,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 2029 transitions. [2021-11-20 23:37:14,349 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 2029 transitions. Word has length 86 [2021-11-20 23:37:14,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:37:14,349 INFO L470 AbstractCegarLoop]: Abstraction has 1500 states and 2029 transitions. [2021-11-20 23:37:14,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (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 23:37:14,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 2029 transitions. [2021-11-20 23:37:14,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-20 23:37:14,352 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:37:14,353 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:37:14,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 23:37:14,353 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:37:14,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:37:14,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1072374482, now seen corresponding path program 1 times [2021-11-20 23:37:14,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:37:14,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872325973] [2021-11-20 23:37:14,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:37:14,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:37:14,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:37:14,509 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:37:14,510 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:37:14,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872325973] [2021-11-20 23:37:14,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872325973] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:37:14,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:37:14,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:37:14,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520213490] [2021-11-20 23:37:14,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:37:14,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:37:14,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:37:14,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:37:14,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:37:14,513 INFO L87 Difference]: Start difference. First operand 1500 states and 2029 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 23:37:16,757 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:37:18,784 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:37:20,818 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 23:37:22,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:37:22,603 INFO L93 Difference]: Finished difference Result 1511 states and 2039 transitions. [2021-11-20 23:37:22,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:37:22,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 88 [2021-11-20 23:37:22,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:37:22,613 INFO L225 Difference]: With dead ends: 1511 [2021-11-20 23:37:22,614 INFO L226 Difference]: Without dead ends: 1509 [2021-11-20 23:37:22,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:37:22,616 INFO L933 BasicCegarLoop]: 1700 mSDtfsCounter, 1756 mSDsluCounter, 2211 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1762 SdHoareTripleChecker+Valid, 3604 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:37:22,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1762 Valid, 3604 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 576 Invalid, 2 Unknown, 0 Unchecked, 8.0s Time] [2021-11-20 23:37:22,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2021-11-20 23:37:22,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1498. [2021-11-20 23:37:22,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 870 states have (on average 1.267816091954023) internal successors, (1103), 934 states have internal predecessors, (1103), 463 states have call successors, (463), 142 states have call predecessors, (463), 141 states have return successors, (461), 446 states have call predecessors, (461), 461 states have call successors, (461) [2021-11-20 23:37:22,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 2027 transitions. [2021-11-20 23:37:22,716 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 2027 transitions. Word has length 88 [2021-11-20 23:37:22,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:37:22,716 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 2027 transitions. [2021-11-20 23:37:22,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 23:37:22,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 2027 transitions. [2021-11-20 23:37:22,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-20 23:37:22,719 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:37:22,719 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:37:22,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 23:37:22,719 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:37:22,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:37:22,720 INFO L85 PathProgramCache]: Analyzing trace with hash -543680197, now seen corresponding path program 1 times [2021-11-20 23:37:22,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:37:22,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618202458] [2021-11-20 23:37:22,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:37:22,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:37:22,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:37:22,884 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:37:22,884 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:37:22,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618202458] [2021-11-20 23:37:22,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618202458] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:37:22,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:37:22,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:37:22,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397502218] [2021-11-20 23:37:22,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:37:22,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:37:22,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:37:22,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:37:22,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:37:22,886 INFO L87 Difference]: Start difference. First operand 1498 states and 2027 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-20 23:37:25,815 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 23:37:27,847 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 23:37:29,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:37:29,795 INFO L93 Difference]: Finished difference Result 1509 states and 2037 transitions. [2021-11-20 23:37:29,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:37:29,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 93 [2021-11-20 23:37:29,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:37:29,806 INFO L225 Difference]: With dead ends: 1509 [2021-11-20 23:37:29,806 INFO L226 Difference]: Without dead ends: 1507 [2021-11-20 23:37:29,807 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 23:37:29,808 INFO L933 BasicCegarLoop]: 1698 mSDtfsCounter, 1752 mSDsluCounter, 2208 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1760 SdHoareTripleChecker+Valid, 3600 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:37:29,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1760 Valid, 3600 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 575 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2021-11-20 23:37:29,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2021-11-20 23:37:29,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1496. [2021-11-20 23:37:29,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1496 states, 869 states have (on average 1.2669735327963176) internal successors, (1101), 932 states have internal predecessors, (1101), 463 states have call successors, (463), 142 states have call predecessors, (463), 141 states have return successors, (461), 446 states have call predecessors, (461), 461 states have call successors, (461) [2021-11-20 23:37:29,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 2025 transitions. [2021-11-20 23:37:29,913 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 2025 transitions. Word has length 93 [2021-11-20 23:37:29,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:37:29,914 INFO L470 AbstractCegarLoop]: Abstraction has 1496 states and 2025 transitions. [2021-11-20 23:37:29,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-20 23:37:29,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 2025 transitions. [2021-11-20 23:37:29,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-20 23:37:29,916 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:37:29,917 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:37:29,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 23:37:29,917 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:37:29,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:37:29,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1905463031, now seen corresponding path program 1 times [2021-11-20 23:37:29,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:37:29,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773204685] [2021-11-20 23:37:29,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:37:29,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:37:29,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:37:30,046 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:37:30,047 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:37:30,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773204685] [2021-11-20 23:37:30,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773204685] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:37:30,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:37:30,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:37:30,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950852100] [2021-11-20 23:37:30,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:37:30,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:37:30,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:37:30,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:37:30,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:37:30,049 INFO L87 Difference]: Start difference. First operand 1496 states and 2025 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-20 23:37:33,174 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 23:37:35,213 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 23:37:36,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:37:36,817 INFO L93 Difference]: Finished difference Result 1507 states and 2035 transitions. [2021-11-20 23:37:36,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:37:36,817 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 98 [2021-11-20 23:37:36,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:37:36,827 INFO L225 Difference]: With dead ends: 1507 [2021-11-20 23:37:36,827 INFO L226 Difference]: Without dead ends: 1505 [2021-11-20 23:37:36,828 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 23:37:36,829 INFO L933 BasicCegarLoop]: 1696 mSDtfsCounter, 1749 mSDsluCounter, 2206 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1757 SdHoareTripleChecker+Valid, 3596 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:37:36,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1757 Valid, 3596 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 575 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2021-11-20 23:37:36,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2021-11-20 23:37:36,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1494. [2021-11-20 23:37:36,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1494 states, 868 states have (on average 1.2661290322580645) internal successors, (1099), 930 states have internal predecessors, (1099), 463 states have call successors, (463), 142 states have call predecessors, (463), 141 states have return successors, (461), 446 states have call predecessors, (461), 461 states have call successors, (461) [2021-11-20 23:37:36,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 2023 transitions. [2021-11-20 23:37:36,937 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 2023 transitions. Word has length 98 [2021-11-20 23:37:36,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:37:36,938 INFO L470 AbstractCegarLoop]: Abstraction has 1494 states and 2023 transitions. [2021-11-20 23:37:36,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-20 23:37:36,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 2023 transitions. [2021-11-20 23:37:36,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-20 23:37:36,942 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:37:36,942 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:37:36,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 23:37:36,942 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:37:36,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:37:36,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1606545953, now seen corresponding path program 1 times [2021-11-20 23:37:36,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:37:36,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071475078] [2021-11-20 23:37:36,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:37:36,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:37:37,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:37:37,214 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2021-11-20 23:37:37,214 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:37:37,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071475078] [2021-11-20 23:37:37,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071475078] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:37:37,215 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:37:37,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 23:37:37,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144573123] [2021-11-20 23:37:37,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:37:37,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:37:37,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:37:37,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:37:37,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:37:37,217 INFO L87 Difference]: Start difference. First operand 1494 states and 2023 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-20 23:37:41,554 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 23:37:43,647 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 23:37:48,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:37:48,000 INFO L93 Difference]: Finished difference Result 1505 states and 2033 transitions. [2021-11-20 23:37:48,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 23:37:48,001 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 131 [2021-11-20 23:37:48,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:37:48,011 INFO L225 Difference]: With dead ends: 1505 [2021-11-20 23:37:48,011 INFO L226 Difference]: Without dead ends: 1503 [2021-11-20 23:37:48,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-20 23:37:48,013 INFO L933 BasicCegarLoop]: 1697 mSDtfsCounter, 1736 mSDsluCounter, 5289 mSDsCounter, 0 mSdLazyCounter, 1949 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1747 SdHoareTripleChecker+Valid, 6155 SdHoareTripleChecker+Invalid, 1954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1949 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:37:48,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1747 Valid, 6155 Invalid, 1954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1949 Invalid, 2 Unknown, 0 Unchecked, 10.6s Time] [2021-11-20 23:37:48,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2021-11-20 23:37:48,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1494. [2021-11-20 23:37:48,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1494 states, 868 states have (on average 1.2649769585253456) internal successors, (1098), 930 states have internal predecessors, (1098), 463 states have call successors, (463), 142 states have call predecessors, (463), 141 states have return successors, (461), 446 states have call predecessors, (461), 461 states have call successors, (461) [2021-11-20 23:37:48,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 2022 transitions. [2021-11-20 23:37:48,120 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 2022 transitions. Word has length 131 [2021-11-20 23:37:48,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:37:48,121 INFO L470 AbstractCegarLoop]: Abstraction has 1494 states and 2022 transitions. [2021-11-20 23:37:48,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-20 23:37:48,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 2022 transitions. [2021-11-20 23:37:48,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-20 23:37:48,124 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:37:48,124 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:37:48,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 23:37:48,124 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:37:48,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:37:48,125 INFO L85 PathProgramCache]: Analyzing trace with hash -208456559, now seen corresponding path program 1 times [2021-11-20 23:37:48,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:37:48,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277985183] [2021-11-20 23:37:48,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:37:48,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:37:48,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:37:48,265 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:37:48,266 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:37:48,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277985183] [2021-11-20 23:37:48,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277985183] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:37:48,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:37:48,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:37:48,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072249400] [2021-11-20 23:37:48,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:37:48,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:37:48,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:37:48,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:37:48,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:37:48,268 INFO L87 Difference]: Start difference. First operand 1494 states and 2022 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, (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 23:37:51,545 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:37:53,588 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 23:37:54,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:37:54,986 INFO L93 Difference]: Finished difference Result 1503 states and 2031 transitions. [2021-11-20 23:37:54,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:37:54,987 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, (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 103 [2021-11-20 23:37:54,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:37:54,996 INFO L225 Difference]: With dead ends: 1503 [2021-11-20 23:37:54,996 INFO L226 Difference]: Without dead ends: 1501 [2021-11-20 23:37:54,997 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 23:37:54,998 INFO L933 BasicCegarLoop]: 1694 mSDtfsCounter, 1747 mSDsluCounter, 2206 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1753 SdHoareTripleChecker+Valid, 3592 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:37:54,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1753 Valid, 3592 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 578 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2021-11-20 23:37:55,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2021-11-20 23:37:55,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 1492. [2021-11-20 23:37:55,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1492 states, 867 states have (on average 1.2641291810841984) internal successors, (1096), 928 states have internal predecessors, (1096), 463 states have call successors, (463), 142 states have call predecessors, (463), 141 states have return successors, (461), 446 states have call predecessors, (461), 461 states have call successors, (461) [2021-11-20 23:37:55,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 2020 transitions. [2021-11-20 23:37:55,145 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 2020 transitions. Word has length 103 [2021-11-20 23:37:55,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:37:55,146 INFO L470 AbstractCegarLoop]: Abstraction has 1492 states and 2020 transitions. [2021-11-20 23:37:55,146 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, (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 23:37:55,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 2020 transitions. [2021-11-20 23:37:55,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-20 23:37:55,149 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:37:55,149 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:37:55,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 23:37:55,149 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:37:55,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:37:55,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1203425175, now seen corresponding path program 1 times [2021-11-20 23:37:55,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:37:55,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501851999] [2021-11-20 23:37:55,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:37:55,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:37:55,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:37:55,368 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2021-11-20 23:37:55,368 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:37:55,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501851999] [2021-11-20 23:37:55,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501851999] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:37:55,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:37:55,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:37:55,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026833825] [2021-11-20 23:37:55,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:37:55,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:37:55,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:37:55,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:37:55,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:37:55,370 INFO L87 Difference]: Start difference. First operand 1492 states and 2020 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 23:37:58,567 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 23:38:00,617 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:38:03,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:38:03,945 INFO L93 Difference]: Finished difference Result 2684 states and 3679 transitions. [2021-11-20 23:38:03,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:38:03,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 128 [2021-11-20 23:38:03,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:38:03,967 INFO L225 Difference]: With dead ends: 2684 [2021-11-20 23:38:03,967 INFO L226 Difference]: Without dead ends: 2682 [2021-11-20 23:38:03,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 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 23:38:03,969 INFO L933 BasicCegarLoop]: 2281 mSDtfsCounter, 1754 mSDsluCounter, 6815 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1761 SdHoareTripleChecker+Valid, 8249 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:38:03,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1761 Valid, 8249 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1169 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2021-11-20 23:38:03,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2021-11-20 23:38:04,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 2506. [2021-11-20 23:38:04,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2506 states, 1466 states have (on average 1.2708049113233288) internal successors, (1863), 1561 states have internal predecessors, (1863), 789 states have call successors, (789), 232 states have call predecessors, (789), 230 states have return successors, (840), 755 states have call predecessors, (840), 787 states have call successors, (840) [2021-11-20 23:38:04,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2506 states to 2506 states and 3492 transitions. [2021-11-20 23:38:04,223 INFO L78 Accepts]: Start accepts. Automaton has 2506 states and 3492 transitions. Word has length 128 [2021-11-20 23:38:04,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:38:04,224 INFO L470 AbstractCegarLoop]: Abstraction has 2506 states and 3492 transitions. [2021-11-20 23:38:04,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 23:38:04,224 INFO L276 IsEmpty]: Start isEmpty. Operand 2506 states and 3492 transitions. [2021-11-20 23:38:04,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-20 23:38:04,227 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:38:04,227 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-20 23:38:04,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 23:38:04,228 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:38:04,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:38:04,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1933747606, now seen corresponding path program 1 times [2021-11-20 23:38:04,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:38:04,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942768626] [2021-11-20 23:38:04,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:38:04,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:38:04,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:38:04,402 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2021-11-20 23:38:04,402 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:38:04,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942768626] [2021-11-20 23:38:04,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942768626] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:38:04,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:38:04,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:38:04,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913579124] [2021-11-20 23:38:04,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:38:04,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:38:04,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:38:04,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:38:04,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:38:04,405 INFO L87 Difference]: Start difference. First operand 2506 states and 3492 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 23:38:06,994 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 23:38:09,022 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 23:38:10,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:38:10,191 INFO L93 Difference]: Finished difference Result 4982 states and 7097 transitions. [2021-11-20 23:38:10,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:38:10,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 137 [2021-11-20 23:38:10,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:38:10,212 INFO L225 Difference]: With dead ends: 4982 [2021-11-20 23:38:10,212 INFO L226 Difference]: Without dead ends: 2509 [2021-11-20 23:38:10,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:38:10,237 INFO L933 BasicCegarLoop]: 1693 mSDtfsCounter, 1736 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1742 SdHoareTripleChecker+Valid, 1895 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:38:10,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1742 Valid, 1895 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2021-11-20 23:38:10,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2509 states. [2021-11-20 23:38:10,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2509 to 2505. [2021-11-20 23:38:10,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 1464 states have (on average 1.2684426229508197) internal successors, (1857), 1559 states have internal predecessors, (1857), 789 states have call successors, (789), 232 states have call predecessors, (789), 231 states have return successors, (844), 756 states have call predecessors, (844), 787 states have call successors, (844) [2021-11-20 23:38:10,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3490 transitions. [2021-11-20 23:38:10,462 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3490 transitions. Word has length 137 [2021-11-20 23:38:10,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:38:10,464 INFO L470 AbstractCegarLoop]: Abstraction has 2505 states and 3490 transitions. [2021-11-20 23:38:10,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 23:38:10,464 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3490 transitions. [2021-11-20 23:38:10,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-20 23:38:10,467 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:38:10,467 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:38:10,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-20 23:38:10,468 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:38:10,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:38:10,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1497146084, now seen corresponding path program 1 times [2021-11-20 23:38:10,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:38:10,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24972266] [2021-11-20 23:38:10,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:38:10,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:38:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:38:10,640 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:38:10,640 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:38:10,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24972266] [2021-11-20 23:38:10,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24972266] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:38:10,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:38:10,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:38:10,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168391395] [2021-11-20 23:38:10,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:38:10,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:38:10,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:38:10,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:38:10,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:38:10,645 INFO L87 Difference]: Start difference. First operand 2505 states and 3490 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, (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 23:38:12,364 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:38:14,892 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:38:16,921 WARN L515 Checker$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 23:38:18,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:38:18,560 INFO L93 Difference]: Finished difference Result 2509 states and 3492 transitions. [2021-11-20 23:38:18,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:38:18,560 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, (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 108 [2021-11-20 23:38:18,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:38:18,578 INFO L225 Difference]: With dead ends: 2509 [2021-11-20 23:38:18,578 INFO L226 Difference]: Without dead ends: 2507 [2021-11-20 23:38:18,580 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 23:38:18,580 INFO L933 BasicCegarLoop]: 1691 mSDtfsCounter, 1736 mSDsluCounter, 2201 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 3586 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:38:18,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1744 Valid, 3586 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 575 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2021-11-20 23:38:18,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2507 states. [2021-11-20 23:38:18,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2507 to 2503. [2021-11-20 23:38:18,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2503 states, 1463 states have (on average 1.2679425837320575) internal successors, (1855), 1557 states have internal predecessors, (1855), 789 states have call successors, (789), 232 states have call predecessors, (789), 231 states have return successors, (844), 756 states have call predecessors, (844), 787 states have call successors, (844) [2021-11-20 23:38:18,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2503 states to 2503 states and 3488 transitions. [2021-11-20 23:38:18,787 INFO L78 Accepts]: Start accepts. Automaton has 2503 states and 3488 transitions. Word has length 108 [2021-11-20 23:38:18,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:38:18,788 INFO L470 AbstractCegarLoop]: Abstraction has 2503 states and 3488 transitions. [2021-11-20 23:38:18,788 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, (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 23:38:18,788 INFO L276 IsEmpty]: Start isEmpty. Operand 2503 states and 3488 transitions. [2021-11-20 23:38:18,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-20 23:38:18,791 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:38:18,791 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:38:18,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-20 23:38:18,792 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:38:18,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:38:18,792 INFO L85 PathProgramCache]: Analyzing trace with hash 872185697, now seen corresponding path program 1 times [2021-11-20 23:38:18,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:38:18,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673917074] [2021-11-20 23:38:18,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:38:18,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:38:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:38:18,934 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:38:18,934 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:38:18,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673917074] [2021-11-20 23:38:18,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673917074] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:38:18,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:38:18,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:38:18,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065198543] [2021-11-20 23:38:18,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:38:18,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:38:18,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:38:18,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:38:18,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:38:18,937 INFO L87 Difference]: Start difference. First operand 2503 states and 3488 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, (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 23:38:21,698 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:38:23,736 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:38:25,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:38:25,407 INFO L93 Difference]: Finished difference Result 2507 states and 3490 transitions. [2021-11-20 23:38:25,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:38:25,408 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, (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 113 [2021-11-20 23:38:25,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:38:25,422 INFO L225 Difference]: With dead ends: 2507 [2021-11-20 23:38:25,423 INFO L226 Difference]: Without dead ends: 2505 [2021-11-20 23:38:25,424 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 23:38:25,425 INFO L933 BasicCegarLoop]: 1689 mSDtfsCounter, 1733 mSDsluCounter, 2199 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1741 SdHoareTripleChecker+Valid, 3582 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:38:25,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1741 Valid, 3582 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 575 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2021-11-20 23:38:25,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2021-11-20 23:38:25,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 2501. [2021-11-20 23:38:25,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2501 states, 1462 states have (on average 1.2674418604651163) internal successors, (1853), 1555 states have internal predecessors, (1853), 789 states have call successors, (789), 232 states have call predecessors, (789), 231 states have return successors, (844), 756 states have call predecessors, (844), 787 states have call successors, (844) [2021-11-20 23:38:25,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2501 states to 2501 states and 3486 transitions. [2021-11-20 23:38:25,635 INFO L78 Accepts]: Start accepts. Automaton has 2501 states and 3486 transitions. Word has length 113 [2021-11-20 23:38:25,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:38:25,635 INFO L470 AbstractCegarLoop]: Abstraction has 2501 states and 3486 transitions. [2021-11-20 23:38:25,635 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, (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 23:38:25,636 INFO L276 IsEmpty]: Start isEmpty. Operand 2501 states and 3486 transitions. [2021-11-20 23:38:25,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-20 23:38:25,639 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:38:25,639 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:38:25,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-20 23:38:25,639 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:38:25,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:38:25,640 INFO L85 PathProgramCache]: Analyzing trace with hash -70869648, now seen corresponding path program 1 times [2021-11-20 23:38:25,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:38:25,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213511380] [2021-11-20 23:38:25,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:38:25,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:38:25,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:38:25,782 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:38:25,782 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:38:25,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213511380] [2021-11-20 23:38:25,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213511380] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:38:25,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:38:25,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:38:25,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259698148] [2021-11-20 23:38:25,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:38:25,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:38:25,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:38:25,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:38:25,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:38:25,785 INFO L87 Difference]: Start difference. First operand 2501 states and 3486 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, (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 23:38:29,423 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:38:31,460 WARN L515 Checker$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 23:38:33,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:38:33,170 INFO L93 Difference]: Finished difference Result 2505 states and 3488 transitions. [2021-11-20 23:38:33,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:38:33,170 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, (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 118 [2021-11-20 23:38:33,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:38:33,182 INFO L225 Difference]: With dead ends: 2505 [2021-11-20 23:38:33,182 INFO L226 Difference]: Without dead ends: 2503 [2021-11-20 23:38:33,184 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 23:38:33,184 INFO L933 BasicCegarLoop]: 1687 mSDtfsCounter, 1733 mSDsluCounter, 2198 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1739 SdHoareTripleChecker+Valid, 3578 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:38:33,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1739 Valid, 3578 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 576 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2021-11-20 23:38:33,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2503 states. [2021-11-20 23:38:33,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2503 to 2499. [2021-11-20 23:38:33,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2499 states, 1461 states have (on average 1.26694045174538) internal successors, (1851), 1553 states have internal predecessors, (1851), 789 states have call successors, (789), 232 states have call predecessors, (789), 231 states have return successors, (844), 756 states have call predecessors, (844), 787 states have call successors, (844) [2021-11-20 23:38:33,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2499 states to 2499 states and 3484 transitions. [2021-11-20 23:38:33,408 INFO L78 Accepts]: Start accepts. Automaton has 2499 states and 3484 transitions. Word has length 118 [2021-11-20 23:38:33,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:38:33,409 INFO L470 AbstractCegarLoop]: Abstraction has 2499 states and 3484 transitions. [2021-11-20 23:38:33,409 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, (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 23:38:33,409 INFO L276 IsEmpty]: Start isEmpty. Operand 2499 states and 3484 transitions. [2021-11-20 23:38:33,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-20 23:38:33,412 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:38:33,412 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:38:33,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-20 23:38:33,413 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:38:33,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:38:33,413 INFO L85 PathProgramCache]: Analyzing trace with hash -78894909, now seen corresponding path program 1 times [2021-11-20 23:38:33,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:38:33,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630529508] [2021-11-20 23:38:33,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:38:33,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:38:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:38:33,556 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:38:33,557 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:38:33,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630529508] [2021-11-20 23:38:33,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630529508] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:38:33,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:38:33,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:38:33,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911185389] [2021-11-20 23:38:33,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:38:33,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:38:33,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:38:33,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:38:33,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:38:33,560 INFO L87 Difference]: Start difference. First operand 2499 states and 3484 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, (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 23:38:36,802 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:38:38,843 WARN L515 Checker$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 23:38:40,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:38:40,405 INFO L93 Difference]: Finished difference Result 2503 states and 3486 transitions. [2021-11-20 23:38:40,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:38:40,406 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, (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 123 [2021-11-20 23:38:40,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:38:40,415 INFO L225 Difference]: With dead ends: 2503 [2021-11-20 23:38:40,416 INFO L226 Difference]: Without dead ends: 2501 [2021-11-20 23:38:40,417 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 23:38:40,417 INFO L933 BasicCegarLoop]: 1685 mSDtfsCounter, 1730 mSDsluCounter, 2196 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1736 SdHoareTripleChecker+Valid, 3574 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:38:40,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1736 Valid, 3574 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 577 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2021-11-20 23:38:40,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2501 states. [2021-11-20 23:38:40,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2501 to 2497. [2021-11-20 23:38:40,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2497 states, 1460 states have (on average 1.2664383561643835) internal successors, (1849), 1551 states have internal predecessors, (1849), 789 states have call successors, (789), 232 states have call predecessors, (789), 231 states have return successors, (844), 756 states have call predecessors, (844), 787 states have call successors, (844) [2021-11-20 23:38:40,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2497 states to 2497 states and 3482 transitions. [2021-11-20 23:38:40,618 INFO L78 Accepts]: Start accepts. Automaton has 2497 states and 3482 transitions. Word has length 123 [2021-11-20 23:38:40,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:38:40,619 INFO L470 AbstractCegarLoop]: Abstraction has 2497 states and 3482 transitions. [2021-11-20 23:38:40,619 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, (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 23:38:40,619 INFO L276 IsEmpty]: Start isEmpty. Operand 2497 states and 3482 transitions. [2021-11-20 23:38:40,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-20 23:38:40,623 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:38:40,623 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:38:40,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-20 23:38:40,624 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:38:40,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:38:40,624 INFO L85 PathProgramCache]: Analyzing trace with hash -731111845, now seen corresponding path program 1 times [2021-11-20 23:38:40,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:38:40,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896263198] [2021-11-20 23:38:40,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:38:40,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:38:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:38:40,759 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:38:40,759 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:38:40,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896263198] [2021-11-20 23:38:40,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896263198] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:38:40,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:38:40,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:38:40,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606229471] [2021-11-20 23:38:40,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:38:40,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:38:40,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:38:40,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:38:40,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:38:40,762 INFO L87 Difference]: Start difference. First operand 2497 states and 3482 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, (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 23:38:43,366 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:38:45,392 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:38:47,421 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 23:38:49,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:38:49,141 INFO L93 Difference]: Finished difference Result 2501 states and 3484 transitions. [2021-11-20 23:38:49,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:38:49,143 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, (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 128 [2021-11-20 23:38:49,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:38:49,151 INFO L225 Difference]: With dead ends: 2501 [2021-11-20 23:38:49,151 INFO L226 Difference]: Without dead ends: 2499 [2021-11-20 23:38:49,152 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 23:38:49,153 INFO L933 BasicCegarLoop]: 1683 mSDtfsCounter, 1727 mSDsluCounter, 2194 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1733 SdHoareTripleChecker+Valid, 3570 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:38:49,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1733 Valid, 3570 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 576 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2021-11-20 23:38:49,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2499 states. [2021-11-20 23:38:49,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2499 to 2495. [2021-11-20 23:38:49,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2495 states, 1459 states have (on average 1.2659355723098011) internal successors, (1847), 1549 states have internal predecessors, (1847), 789 states have call successors, (789), 232 states have call predecessors, (789), 231 states have return successors, (844), 756 states have call predecessors, (844), 787 states have call successors, (844) [2021-11-20 23:38:49,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2495 states to 2495 states and 3480 transitions. [2021-11-20 23:38:49,384 INFO L78 Accepts]: Start accepts. Automaton has 2495 states and 3480 transitions. Word has length 128 [2021-11-20 23:38:49,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:38:49,384 INFO L470 AbstractCegarLoop]: Abstraction has 2495 states and 3480 transitions. [2021-11-20 23:38:49,385 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, (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 23:38:49,385 INFO L276 IsEmpty]: Start isEmpty. Operand 2495 states and 3480 transitions. [2021-11-20 23:38:49,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-20 23:38:49,388 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:38:49,389 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:38:49,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-20 23:38:49,389 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:38:49,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:38:49,390 INFO L85 PathProgramCache]: Analyzing trace with hash 838538688, now seen corresponding path program 1 times [2021-11-20 23:38:49,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:38:49,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291315749] [2021-11-20 23:38:49,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:38:49,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:38:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:38:49,533 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:38:49,533 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:38:49,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291315749] [2021-11-20 23:38:49,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291315749] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:38:49,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:38:49,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:38:49,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412007876] [2021-11-20 23:38:49,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:38:49,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:38:49,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:38:49,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:38:49,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:38:49,536 INFO L87 Difference]: Start difference. First operand 2495 states and 3480 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, (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 23:38:53,838 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:38:55,868 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 23:38:57,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:38:57,895 INFO L93 Difference]: Finished difference Result 2499 states and 3482 transitions. [2021-11-20 23:38:57,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:38:57,895 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, (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 133 [2021-11-20 23:38:57,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:38:57,906 INFO L225 Difference]: With dead ends: 2499 [2021-11-20 23:38:57,907 INFO L226 Difference]: Without dead ends: 2497 [2021-11-20 23:38:57,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:38:57,909 INFO L933 BasicCegarLoop]: 1681 mSDtfsCounter, 1724 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1730 SdHoareTripleChecker+Valid, 3566 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:38:57,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1730 Valid, 3566 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 576 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2021-11-20 23:38:57,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2497 states. [2021-11-20 23:38:58,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2497 to 2493. [2021-11-20 23:38:58,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2493 states, 1458 states have (on average 1.2654320987654322) internal successors, (1845), 1547 states have internal predecessors, (1845), 789 states have call successors, (789), 232 states have call predecessors, (789), 231 states have return successors, (844), 756 states have call predecessors, (844), 787 states have call successors, (844) [2021-11-20 23:38:58,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2493 states to 2493 states and 3478 transitions. [2021-11-20 23:38:58,154 INFO L78 Accepts]: Start accepts. Automaton has 2493 states and 3478 transitions. Word has length 133 [2021-11-20 23:38:58,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:38:58,154 INFO L470 AbstractCegarLoop]: Abstraction has 2493 states and 3478 transitions. [2021-11-20 23:38:58,155 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, (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 23:38:58,155 INFO L276 IsEmpty]: Start isEmpty. Operand 2493 states and 3478 transitions. [2021-11-20 23:38:58,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-20 23:38:58,159 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:38:58,159 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:38:58,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-20 23:38:58,160 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:38:58,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:38:58,160 INFO L85 PathProgramCache]: Analyzing trace with hash -70277283, now seen corresponding path program 1 times [2021-11-20 23:38:58,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:38:58,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538039765] [2021-11-20 23:38:58,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:38:58,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:38:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:38:58,284 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-11-20 23:38:58,284 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:38:58,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538039765] [2021-11-20 23:38:58,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538039765] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:38:58,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:38:58,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:38:58,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855699429] [2021-11-20 23:38:58,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:38:58,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:38:58,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:38:58,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:38:58,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:38:58,287 INFO L87 Difference]: Start difference. First operand 2493 states and 3478 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-20 23:39:00,278 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:39:02,310 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 23:39:03,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:39:03,381 INFO L93 Difference]: Finished difference Result 4863 states and 6759 transitions. [2021-11-20 23:39:03,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:39:03,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 162 [2021-11-20 23:39:03,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:39:03,393 INFO L225 Difference]: With dead ends: 4863 [2021-11-20 23:39:03,393 INFO L226 Difference]: Without dead ends: 2491 [2021-11-20 23:39:03,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:39:03,403 INFO L933 BasicCegarLoop]: 1677 mSDtfsCounter, 1744 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1748 SdHoareTripleChecker+Valid, 1881 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:39:03,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1748 Valid, 1881 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 309 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2021-11-20 23:39:03,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2491 states. [2021-11-20 23:39:03,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2491 to 2487. [2021-11-20 23:39:03,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2487 states, 1453 states have (on average 1.2635925671025465) internal successors, (1836), 1541 states have internal predecessors, (1836), 789 states have call successors, (789), 232 states have call predecessors, (789), 231 states have return successors, (844), 756 states have call predecessors, (844), 787 states have call successors, (844) [2021-11-20 23:39:03,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2487 states to 2487 states and 3469 transitions. [2021-11-20 23:39:03,625 INFO L78 Accepts]: Start accepts. Automaton has 2487 states and 3469 transitions. Word has length 162 [2021-11-20 23:39:03,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:39:03,626 INFO L470 AbstractCegarLoop]: Abstraction has 2487 states and 3469 transitions. [2021-11-20 23:39:03,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-20 23:39:03,626 INFO L276 IsEmpty]: Start isEmpty. Operand 2487 states and 3469 transitions. [2021-11-20 23:39:03,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-20 23:39:03,630 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:39:03,631 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:39:03,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-20 23:39:03,631 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:39:03,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:39:03,632 INFO L85 PathProgramCache]: Analyzing trace with hash -81637516, now seen corresponding path program 1 times [2021-11-20 23:39:03,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:39:03,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93999973] [2021-11-20 23:39:03,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:03,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:39:03,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:39:03,910 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-11-20 23:39:03,911 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:39:03,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93999973] [2021-11-20 23:39:03,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93999973] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:39:03,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:39:03,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:39:03,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261697469] [2021-11-20 23:39:03,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:39:03,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:39:03,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:39:03,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:39:03,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:39:03,913 INFO L87 Difference]: Start difference. First operand 2487 states and 3469 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-20 23:39:09,747 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 23:39:11,790 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:39:14,930 WARN L515 Checker$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 23:39:16,969 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:39:20,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:39:20,362 INFO L93 Difference]: Finished difference Result 4884 states and 6881 transitions. [2021-11-20 23:39:20,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:39:20,363 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 167 [2021-11-20 23:39:20,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:39:20,374 INFO L225 Difference]: With dead ends: 4884 [2021-11-20 23:39:20,374 INFO L226 Difference]: Without dead ends: 2506 [2021-11-20 23:39:20,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:39:20,385 INFO L933 BasicCegarLoop]: 1533 mSDtfsCounter, 4 mSDsluCounter, 4942 mSDsCounter, 0 mSdLazyCounter, 1221 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5882 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1221 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:39:20,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 5882 Invalid, 1226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1221 Invalid, 4 Unknown, 0 Unchecked, 16.2s Time] [2021-11-20 23:39:20,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2021-11-20 23:39:20,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2504. [2021-11-20 23:39:20,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2504 states, 1465 states have (on average 1.263481228668942) internal successors, (1851), 1557 states have internal predecessors, (1851), 792 states have call successors, (792), 232 states have call predecessors, (792), 233 states have return successors, (851), 759 states have call predecessors, (851), 790 states have call successors, (851) [2021-11-20 23:39:20,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2504 states to 2504 states and 3494 transitions. [2021-11-20 23:39:20,581 INFO L78 Accepts]: Start accepts. Automaton has 2504 states and 3494 transitions. Word has length 167 [2021-11-20 23:39:20,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:39:20,582 INFO L470 AbstractCegarLoop]: Abstraction has 2504 states and 3494 transitions. [2021-11-20 23:39:20,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-20 23:39:20,582 INFO L276 IsEmpty]: Start isEmpty. Operand 2504 states and 3494 transitions. [2021-11-20 23:39:20,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-20 23:39:20,586 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:39:20,586 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:39:20,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-20 23:39:20,587 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:39:20,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:39:20,587 INFO L85 PathProgramCache]: Analyzing trace with hash 2098003055, now seen corresponding path program 1 times [2021-11-20 23:39:20,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:39:20,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653112280] [2021-11-20 23:39:20,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:20,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:39:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:39:20,725 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:39:20,726 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:39:20,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653112280] [2021-11-20 23:39:20,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653112280] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:39:20,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:39:20,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:39:20,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272453437] [2021-11-20 23:39:20,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:39:20,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:39:20,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:39:20,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:39:20,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:39:20,728 INFO L87 Difference]: Start difference. First operand 2504 states and 3494 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, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-20 23:39:25,095 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 23:39:27,132 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 23:39:31,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:39:31,995 INFO L93 Difference]: Finished difference Result 4745 states and 6710 transitions. [2021-11-20 23:39:31,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:39:31,995 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, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 138 [2021-11-20 23:39:31,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:39:32,015 INFO L225 Difference]: With dead ends: 4745 [2021-11-20 23:39:32,015 INFO L226 Difference]: Without dead ends: 4743 [2021-11-20 23:39:32,018 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 23:39:32,019 INFO L933 BasicCegarLoop]: 2183 mSDtfsCounter, 1691 mSDsluCounter, 4194 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1697 SdHoareTripleChecker+Valid, 5828 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:39:32,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1697 Valid, 5828 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 880 Invalid, 2 Unknown, 0 Unchecked, 10.9s Time] [2021-11-20 23:39:32,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4743 states. [2021-11-20 23:39:32,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4743 to 4706. [2021-11-20 23:39:32,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4706 states, 2750 states have (on average 1.2625454545454546) internal successors, (3472), 2916 states have internal predecessors, (3472), 1506 states have call successors, (1506), 434 states have call predecessors, (1506), 436 states have return successors, (1700), 1439 states have call predecessors, (1700), 1504 states have call successors, (1700) [2021-11-20 23:39:32,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4706 states to 4706 states and 6678 transitions. [2021-11-20 23:39:32,526 INFO L78 Accepts]: Start accepts. Automaton has 4706 states and 6678 transitions. Word has length 138 [2021-11-20 23:39:32,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:39:32,527 INFO L470 AbstractCegarLoop]: Abstraction has 4706 states and 6678 transitions. [2021-11-20 23:39:32,527 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, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-20 23:39:32,527 INFO L276 IsEmpty]: Start isEmpty. Operand 4706 states and 6678 transitions. [2021-11-20 23:39:32,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-20 23:39:32,531 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:39:32,532 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:39:32,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-20 23:39:32,532 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:39:32,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:39:32,533 INFO L85 PathProgramCache]: Analyzing trace with hash 760374774, now seen corresponding path program 1 times [2021-11-20 23:39:32,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:39:32,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995765368] [2021-11-20 23:39:32,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:32,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:39:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:39:32,694 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2021-11-20 23:39:32,694 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:39:32,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995765368] [2021-11-20 23:39:32,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995765368] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:39:32,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430227978] [2021-11-20 23:39:32,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:32,695 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:39:32,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:39:32,697 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:39:32,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 23:39:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:39:33,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 2011 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 23:39:33,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:39:33,930 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2021-11-20 23:39:33,930 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:39:33,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430227978] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:39:33,930 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:39:33,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-11-20 23:39:33,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692425157] [2021-11-20 23:39:33,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:39:33,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:39:33,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:39:33,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:39:33,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-20 23:39:33,932 INFO L87 Difference]: Start difference. First operand 4706 states and 6678 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-20 23:39:36,928 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 23:39:38,965 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 23:39:40,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:39:40,186 INFO L93 Difference]: Finished difference Result 9245 states and 13070 transitions. [2021-11-20 23:39:40,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:39:40,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 167 [2021-11-20 23:39:40,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:39:40,207 INFO L225 Difference]: With dead ends: 9245 [2021-11-20 23:39:40,208 INFO L226 Difference]: Without dead ends: 4722 [2021-11-20 23:39:40,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-20 23:39:40,229 INFO L933 BasicCegarLoop]: 1684 mSDtfsCounter, 1658 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1664 SdHoareTripleChecker+Valid, 1937 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:39:40,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1664 Valid, 1937 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 321 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2021-11-20 23:39:40,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4722 states. [2021-11-20 23:39:40,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4722 to 4716. [2021-11-20 23:39:40,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4716 states, 2751 states have (on average 1.2595419847328244) internal successors, (3465), 2917 states have internal predecessors, (3465), 1510 states have call successors, (1510), 440 states have call predecessors, (1510), 442 states have return successors, (1704), 1442 states have call predecessors, (1704), 1508 states have call successors, (1704) [2021-11-20 23:39:40,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4716 states to 4716 states and 6679 transitions. [2021-11-20 23:39:40,777 INFO L78 Accepts]: Start accepts. Automaton has 4716 states and 6679 transitions. Word has length 167 [2021-11-20 23:39:40,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:39:40,777 INFO L470 AbstractCegarLoop]: Abstraction has 4716 states and 6679 transitions. [2021-11-20 23:39:40,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-20 23:39:40,778 INFO L276 IsEmpty]: Start isEmpty. Operand 4716 states and 6679 transitions. [2021-11-20 23:39:40,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-20 23:39:40,781 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:39:40,782 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:39:40,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 23:39:40,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:39:41,000 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:39:41,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:39:41,000 INFO L85 PathProgramCache]: Analyzing trace with hash 977113700, now seen corresponding path program 1 times [2021-11-20 23:39:41,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:39:41,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237605397] [2021-11-20 23:39:41,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:41,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:39:41,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:39:41,148 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:39:41,148 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:39:41,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237605397] [2021-11-20 23:39:41,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237605397] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:39:41,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:39:41,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:39:41,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223048319] [2021-11-20 23:39:41,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:39:41,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:39:41,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:39:41,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:39:41,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:39:41,151 INFO L87 Difference]: Start difference. First operand 4716 states and 6679 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, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-20 23:39:44,154 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:39:46,173 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:39:48,212 WARN L515 Checker$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 23:39:50,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:39:50,489 INFO L93 Difference]: Finished difference Result 4720 states and 6681 transitions. [2021-11-20 23:39:50,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:39:50,489 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, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 143 [2021-11-20 23:39:50,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:39:50,514 INFO L225 Difference]: With dead ends: 4720 [2021-11-20 23:39:50,515 INFO L226 Difference]: Without dead ends: 4718 [2021-11-20 23:39:50,519 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 23:39:50,520 INFO L933 BasicCegarLoop]: 1669 mSDtfsCounter, 1710 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1716 SdHoareTripleChecker+Valid, 3542 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:39:50,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1716 Valid, 3542 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 576 Invalid, 2 Unknown, 0 Unchecked, 9.0s Time] [2021-11-20 23:39:50,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4718 states. [2021-11-20 23:39:51,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4718 to 4714. [2021-11-20 23:39:51,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4714 states, 2750 states have (on average 1.2592727272727273) internal successors, (3463), 2915 states have internal predecessors, (3463), 1510 states have call successors, (1510), 440 states have call predecessors, (1510), 442 states have return successors, (1704), 1442 states have call predecessors, (1704), 1508 states have call successors, (1704) [2021-11-20 23:39:51,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4714 states to 4714 states and 6677 transitions. [2021-11-20 23:39:51,091 INFO L78 Accepts]: Start accepts. Automaton has 4714 states and 6677 transitions. Word has length 143 [2021-11-20 23:39:51,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:39:51,092 INFO L470 AbstractCegarLoop]: Abstraction has 4714 states and 6677 transitions. [2021-11-20 23:39:51,092 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, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-20 23:39:51,092 INFO L276 IsEmpty]: Start isEmpty. Operand 4714 states and 6677 transitions. [2021-11-20 23:39:51,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-20 23:39:51,096 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:39:51,097 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:39:51,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-20 23:39:51,097 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:39:51,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:39:51,098 INFO L85 PathProgramCache]: Analyzing trace with hash 299682774, now seen corresponding path program 1 times [2021-11-20 23:39:51,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:39:51,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363849421] [2021-11-20 23:39:51,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:51,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:39:51,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:39:51,255 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:39:51,255 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:39:51,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363849421] [2021-11-20 23:39:51,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363849421] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:39:51,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:39:51,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:39:51,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826053209] [2021-11-20 23:39:51,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:39:51,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:39:51,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:39:51,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:39:51,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:39:51,258 INFO L87 Difference]: Start difference. First operand 4714 states and 6677 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-20 23:39:54,320 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:39:56,362 WARN L515 Checker$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 23:39:59,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:39:59,763 INFO L93 Difference]: Finished difference Result 9082 states and 13106 transitions. [2021-11-20 23:39:59,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:39:59,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 148 [2021-11-20 23:39:59,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:39:59,806 INFO L225 Difference]: With dead ends: 9082 [2021-11-20 23:39:59,807 INFO L226 Difference]: Without dead ends: 8934 [2021-11-20 23:39:59,815 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 23:39:59,816 INFO L933 BasicCegarLoop]: 2165 mSDtfsCounter, 1661 mSDsluCounter, 4166 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1667 SdHoareTripleChecker+Valid, 5786 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:39:59,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1667 Valid, 5786 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 873 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2021-11-20 23:39:59,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8934 states. [2021-11-20 23:40:00,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8934 to 8906. [2021-11-20 23:40:00,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8906 states, 5209 states have (on average 1.2608946054904973) internal successors, (6568), 5512 states have internal predecessors, (6568), 2860 states have call successors, (2860), 822 states have call predecessors, (2860), 825 states have return successors, (3471), 2731 states have call predecessors, (3471), 2856 states have call successors, (3471) [2021-11-20 23:40:00,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8906 states to 8906 states and 12899 transitions. [2021-11-20 23:40:00,882 INFO L78 Accepts]: Start accepts. Automaton has 8906 states and 12899 transitions. Word has length 148 [2021-11-20 23:40:00,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:40:00,882 INFO L470 AbstractCegarLoop]: Abstraction has 8906 states and 12899 transitions. [2021-11-20 23:40:00,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-20 23:40:00,883 INFO L276 IsEmpty]: Start isEmpty. Operand 8906 states and 12899 transitions. [2021-11-20 23:40:00,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-20 23:40:00,886 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:40:00,887 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:40:00,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-20 23:40:00,887 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:40:00,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:40:00,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1838190600, now seen corresponding path program 1 times [2021-11-20 23:40:00,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:40:00,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259109717] [2021-11-20 23:40:00,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:40:00,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:40:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:40:01,067 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2021-11-20 23:40:01,067 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:40:01,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259109717] [2021-11-20 23:40:01,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259109717] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:40:01,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:40:01,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:40:01,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159347919] [2021-11-20 23:40:01,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:40:01,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:40:01,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:40:01,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:40:01,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:40:01,070 INFO L87 Difference]: Start difference. First operand 8906 states and 12899 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-20 23:40:04,231 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:40:06,280 WARN L515 Checker$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 23:40:08,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:40:08,756 INFO L93 Difference]: Finished difference Result 19097 states and 27942 transitions. [2021-11-20 23:40:08,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:40:08,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 183 [2021-11-20 23:40:08,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:40:08,806 INFO L225 Difference]: With dead ends: 19097 [2021-11-20 23:40:08,806 INFO L226 Difference]: Without dead ends: 10373 [2021-11-20 23:40:08,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:40:08,850 INFO L933 BasicCegarLoop]: 1777 mSDtfsCounter, 134 mSDsluCounter, 1811 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 3349 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:40:08,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 3349 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 515 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2021-11-20 23:40:08,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10373 states. [2021-11-20 23:40:10,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10373 to 8907. [2021-11-20 23:40:10,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8907 states, 5210 states have (on average 1.2608445297504798) internal successors, (6569), 5513 states have internal predecessors, (6569), 2860 states have call successors, (2860), 822 states have call predecessors, (2860), 825 states have return successors, (3471), 2731 states have call predecessors, (3471), 2856 states have call successors, (3471) [2021-11-20 23:40:10,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8907 states to 8907 states and 12900 transitions. [2021-11-20 23:40:10,211 INFO L78 Accepts]: Start accepts. Automaton has 8907 states and 12900 transitions. Word has length 183 [2021-11-20 23:40:10,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:40:10,211 INFO L470 AbstractCegarLoop]: Abstraction has 8907 states and 12900 transitions. [2021-11-20 23:40:10,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-20 23:40:10,212 INFO L276 IsEmpty]: Start isEmpty. Operand 8907 states and 12900 transitions. [2021-11-20 23:40:10,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-20 23:40:10,216 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:40:10,216 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:40:10,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-20 23:40:10,217 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:40:10,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:40:10,217 INFO L85 PathProgramCache]: Analyzing trace with hash -769195151, now seen corresponding path program 1 times [2021-11-20 23:40:10,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:40:10,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715288813] [2021-11-20 23:40:10,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:40:10,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:40:10,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:40:10,443 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2021-11-20 23:40:10,444 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:40:10,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715288813] [2021-11-20 23:40:10,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715288813] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:40:10,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:40:10,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:40:10,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773512883] [2021-11-20 23:40:10,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:40:10,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:40:10,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:40:10,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:40:10,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:40:10,446 INFO L87 Difference]: Start difference. First operand 8907 states and 12900 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-20 23:40:13,863 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:40:15,905 WARN L515 Checker$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 23:40:20,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:40:20,906 INFO L93 Difference]: Finished difference Result 17117 states and 26596 transitions. [2021-11-20 23:40:20,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:40:20,918 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 208 [2021-11-20 23:40:20,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:40:20,992 INFO L225 Difference]: With dead ends: 17117 [2021-11-20 23:40:20,993 INFO L226 Difference]: Without dead ends: 17115 [2021-11-20 23:40:21,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 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 23:40:21,003 INFO L933 BasicCegarLoop]: 2033 mSDtfsCounter, 1703 mSDsluCounter, 6184 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1706 SdHoareTripleChecker+Valid, 7449 SdHoareTripleChecker+Invalid, 1056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:40:21,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1706 Valid, 7449 Invalid, 1056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1052 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2021-11-20 23:40:21,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17115 states. [2021-11-20 23:40:22,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17115 to 16720. [2021-11-20 23:40:22,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16720 states, 9842 states have (on average 1.2683397683397684) internal successors, (12483), 10445 states have internal predecessors, (12483), 5359 states have call successors, (5359), 1516 states have call predecessors, (5359), 1507 states have return successors, (8302), 5055 states have call predecessors, (8302), 5355 states have call successors, (8302) [2021-11-20 23:40:22,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16720 states to 16720 states and 26144 transitions. [2021-11-20 23:40:22,779 INFO L78 Accepts]: Start accepts. Automaton has 16720 states and 26144 transitions. Word has length 208 [2021-11-20 23:40:22,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:40:22,780 INFO L470 AbstractCegarLoop]: Abstraction has 16720 states and 26144 transitions. [2021-11-20 23:40:22,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-20 23:40:22,781 INFO L276 IsEmpty]: Start isEmpty. Operand 16720 states and 26144 transitions. [2021-11-20 23:40:22,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-20 23:40:22,784 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:40:22,785 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:40:22,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-20 23:40:22,785 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:40:22,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:40:22,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1519954913, now seen corresponding path program 1 times [2021-11-20 23:40:22,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:40:22,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430294344] [2021-11-20 23:40:22,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:40:22,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:40:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:40:23,185 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-11-20 23:40:23,185 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:40:23,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430294344] [2021-11-20 23:40:23,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430294344] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:40:23,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:40:23,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:40:23,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532308261] [2021-11-20 23:40:23,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:40:23,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:40:23,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:40:23,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:40:23,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:40:23,188 INFO L87 Difference]: Start difference. First operand 16720 states and 26144 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-20 23:40:26,850 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:40:29,600 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:40:31,648 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:40:34,109 WARN L515 Checker$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 23:40:38,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:40:38,321 INFO L93 Difference]: Finished difference Result 17166 states and 26642 transitions. [2021-11-20 23:40:38,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:40:38,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 177 [2021-11-20 23:40:38,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:40:38,398 INFO L225 Difference]: With dead ends: 17166 [2021-11-20 23:40:38,398 INFO L226 Difference]: Without dead ends: 17164 [2021-11-20 23:40:38,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 23:40:38,407 INFO L933 BasicCegarLoop]: 2479 mSDtfsCounter, 1593 mSDsluCounter, 7481 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1598 SdHoareTripleChecker+Valid, 8971 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:40:38,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1598 Valid, 8971 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1374 Invalid, 3 Unknown, 0 Unchecked, 13.6s Time] [2021-11-20 23:40:38,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17164 states. [2021-11-20 23:40:40,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17164 to 16764. [2021-11-20 23:40:40,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16764 states, 9868 states have (on average 1.2676327523307662) internal successors, (12509), 10479 states have internal predecessors, (12509), 5367 states have call successors, (5367), 1526 states have call predecessors, (5367), 1517 states have return successors, (8310), 5055 states have call predecessors, (8310), 5363 states have call successors, (8310) [2021-11-20 23:40:40,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16764 states to 16764 states and 26186 transitions. [2021-11-20 23:40:40,253 INFO L78 Accepts]: Start accepts. Automaton has 16764 states and 26186 transitions. Word has length 177 [2021-11-20 23:40:40,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:40:40,253 INFO L470 AbstractCegarLoop]: Abstraction has 16764 states and 26186 transitions. [2021-11-20 23:40:40,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-20 23:40:40,254 INFO L276 IsEmpty]: Start isEmpty. Operand 16764 states and 26186 transitions. [2021-11-20 23:40:40,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-20 23:40:40,258 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:40:40,258 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:40:40,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-20 23:40:40,259 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:40:40,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:40:40,260 INFO L85 PathProgramCache]: Analyzing trace with hash 359145339, now seen corresponding path program 1 times [2021-11-20 23:40:40,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:40:40,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950963422] [2021-11-20 23:40:40,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:40:40,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:40:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:40:40,425 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-11-20 23:40:40,425 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:40:40,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950963422] [2021-11-20 23:40:40,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950963422] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:40:40,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:40:40,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:40:40,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940619357] [2021-11-20 23:40:40,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:40:40,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:40:40,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:40:40,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:40:40,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:40:40,432 INFO L87 Difference]: Start difference. First operand 16764 states and 26186 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-20 23:40:43,982 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:40:46,467 WARN L515 Checker$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 23:40:50,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:40:50,461 INFO L93 Difference]: Finished difference Result 34558 states and 56989 transitions. [2021-11-20 23:40:50,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:40:50,462 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 186 [2021-11-20 23:40:50,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:40:50,563 INFO L225 Difference]: With dead ends: 34558 [2021-11-20 23:40:50,564 INFO L226 Difference]: Without dead ends: 17980 [2021-11-20 23:40:50,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:40:50,673 INFO L933 BasicCegarLoop]: 1547 mSDtfsCounter, 95 mSDsluCounter, 3505 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 4572 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:40:50,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 4572 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 732 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2021-11-20 23:40:50,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17980 states. [2021-11-20 23:40:52,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17980 to 16796. [2021-11-20 23:40:52,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16796 states, 9900 states have (on average 1.2667676767676768) internal successors, (12541), 10511 states have internal predecessors, (12541), 5367 states have call successors, (5367), 1526 states have call predecessors, (5367), 1517 states have return successors, (8310), 5055 states have call predecessors, (8310), 5363 states have call successors, (8310) [2021-11-20 23:40:52,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16796 states to 16796 states and 26218 transitions. [2021-11-20 23:40:52,632 INFO L78 Accepts]: Start accepts. Automaton has 16796 states and 26218 transitions. Word has length 186 [2021-11-20 23:40:52,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:40:52,633 INFO L470 AbstractCegarLoop]: Abstraction has 16796 states and 26218 transitions. [2021-11-20 23:40:52,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-20 23:40:52,633 INFO L276 IsEmpty]: Start isEmpty. Operand 16796 states and 26218 transitions. [2021-11-20 23:40:52,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-20 23:40:52,640 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:40:52,640 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:40:52,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-20 23:40:52,641 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:40:52,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:40:52,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1973138849, now seen corresponding path program 1 times [2021-11-20 23:40:52,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:40:52,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605206861] [2021-11-20 23:40:52,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:40:52,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:40:52,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:40:52,991 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2021-11-20 23:40:52,992 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:40:52,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605206861] [2021-11-20 23:40:52,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605206861] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:40:52,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541095703] [2021-11-20 23:40:52,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:40:52,993 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:40:52,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:40:52,999 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:40:53,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 23:40:53,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:40:53,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 2240 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 23:40:53,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:40:54,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-20 23:40:54,465 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2021-11-20 23:40:54,465 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:40:54,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541095703] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:40:54,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:40:54,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2021-11-20 23:40:54,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578807240] [2021-11-20 23:40:54,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:40:54,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:40:54,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:40:54,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:40:54,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-11-20 23:40:54,468 INFO L87 Difference]: Start difference. First operand 16796 states and 26218 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2021-11-20 23:40:58,658 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:00,902 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:02,936 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:04,257 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:06,289 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:08,328 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:10,351 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:14,238 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:17,469 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:19,505 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:22,621 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:25,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:41:25,413 INFO L93 Difference]: Finished difference Result 33910 states and 55909 transitions. [2021-11-20 23:41:25,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:41:25,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 227 [2021-11-20 23:41:25,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:41:25,654 INFO L225 Difference]: With dead ends: 33910 [2021-11-20 23:41:25,654 INFO L226 Difference]: Without dead ends: 17300 [2021-11-20 23:41:25,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:41:25,707 INFO L933 BasicCegarLoop]: 1529 mSDtfsCounter, 27 mSDsluCounter, 4982 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 5902 SdHoareTripleChecker+Invalid, 1232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:41:25,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 5902 Invalid, 1232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1222 Invalid, 8 Unknown, 0 Unchecked, 28.9s Time] [2021-11-20 23:41:25,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17300 states. [2021-11-20 23:41:27,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17300 to 16924. [2021-11-20 23:41:27,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16924 states, 10012 states have (on average 1.2685777067518977) internal successors, (12701), 10623 states have internal predecessors, (12701), 5383 states have call successors, (5383), 1526 states have call predecessors, (5383), 1517 states have return successors, (8326), 5071 states have call predecessors, (8326), 5379 states have call successors, (8326) [2021-11-20 23:41:27,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16924 states to 16924 states and 26410 transitions. [2021-11-20 23:41:27,385 INFO L78 Accepts]: Start accepts. Automaton has 16924 states and 26410 transitions. Word has length 227 [2021-11-20 23:41:27,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:41:27,385 INFO L470 AbstractCegarLoop]: Abstraction has 16924 states and 26410 transitions. [2021-11-20 23:41:27,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2021-11-20 23:41:27,386 INFO L276 IsEmpty]: Start isEmpty. Operand 16924 states and 26410 transitions. [2021-11-20 23:41:27,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-11-20 23:41:27,390 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:41:27,390 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:41:27,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-20 23:41:27,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2021-11-20 23:41:27,596 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:41:27,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:41:27,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1991886159, now seen corresponding path program 1 times [2021-11-20 23:41:27,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:41:27,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540321628] [2021-11-20 23:41:27,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:41:27,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:41:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:41:27,895 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2021-11-20 23:41:27,895 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:41:27,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540321628] [2021-11-20 23:41:27,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540321628] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:41:27,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640493424] [2021-11-20 23:41:27,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:41:27,896 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:41:27,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:41:27,900 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:41:27,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 23:41:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:41:28,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 2247 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 23:41:28,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:41:29,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-11-20 23:41:29,215 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2021-11-20 23:41:29,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:41:29,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640493424] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:41:29,216 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:41:29,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2021-11-20 23:41:29,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65822486] [2021-11-20 23:41:29,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:41:29,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:41:29,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:41:29,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:41:29,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-11-20 23:41:29,220 INFO L87 Difference]: Start difference. First operand 16924 states and 26410 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2021-11-20 23:41:33,481 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 23:41:37,296 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:39,979 WARN L515 Checker$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 23:41:42,473 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:44,506 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:46,857 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:50,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:41:50,246 INFO L93 Difference]: Finished difference Result 34070 states and 56133 transitions. [2021-11-20 23:41:50,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:41:50,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 228 [2021-11-20 23:41:50,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:41:50,310 INFO L225 Difference]: With dead ends: 34070 [2021-11-20 23:41:50,310 INFO L226 Difference]: Without dead ends: 17332 [2021-11-20 23:41:50,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:41:50,385 INFO L933 BasicCegarLoop]: 1540 mSDtfsCounter, 31 mSDsluCounter, 4992 mSDsCounter, 0 mSdLazyCounter, 1226 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 5926 SdHoareTripleChecker+Invalid, 1232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1226 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:41:50,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 5926 Invalid, 1232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1226 Invalid, 4 Unknown, 0 Unchecked, 18.9s Time] [2021-11-20 23:41:50,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17332 states. [2021-11-20 23:41:52,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17332 to 16924. [2021-11-20 23:41:52,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16924 states, 10012 states have (on average 1.2669796244506593) internal successors, (12685), 10623 states have internal predecessors, (12685), 5383 states have call successors, (5383), 1526 states have call predecessors, (5383), 1517 states have return successors, (8326), 5071 states have call predecessors, (8326), 5379 states have call successors, (8326) [2021-11-20 23:41:52,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16924 states to 16924 states and 26394 transitions. [2021-11-20 23:41:52,241 INFO L78 Accepts]: Start accepts. Automaton has 16924 states and 26394 transitions. Word has length 228 [2021-11-20 23:41:52,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:41:52,242 INFO L470 AbstractCegarLoop]: Abstraction has 16924 states and 26394 transitions. [2021-11-20 23:41:52,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2021-11-20 23:41:52,243 INFO L276 IsEmpty]: Start isEmpty. Operand 16924 states and 26394 transitions. [2021-11-20 23:41:52,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-11-20 23:41:52,248 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:41:52,248 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:41:52,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 23:41:52,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-11-20 23:41:52,476 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:41:52,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:41:52,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1942864562, now seen corresponding path program 1 times [2021-11-20 23:41:52,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:41:52,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399916876] [2021-11-20 23:41:52,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:41:52,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:41:52,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:41:52,796 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2021-11-20 23:41:52,797 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:41:52,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399916876] [2021-11-20 23:41:52,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399916876] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:41:52,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395546592] [2021-11-20 23:41:52,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:41:52,797 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:41:52,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:41:52,799 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:41:52,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 23:41:53,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:41:53,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-20 23:41:53,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:41:54,095 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2021-11-20 23:41:54,096 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:41:54,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395546592] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:41:54,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:41:54,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2021-11-20 23:41:54,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095806516] [2021-11-20 23:41:54,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:41:54,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:41:54,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:41:54,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:41:54,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-11-20 23:41:54,098 INFO L87 Difference]: Start difference. First operand 16924 states and 26394 transitions. Second operand has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 4 states have call successors, (34), 3 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 23:41:58,482 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 23:42:01,123 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 23:42:05,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:42:05,408 INFO L93 Difference]: Finished difference Result 30275 states and 45706 transitions. [2021-11-20 23:42:05,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:42:05,409 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 4 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 229 [2021-11-20 23:42:05,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:42:05,470 INFO L225 Difference]: With dead ends: 30275 [2021-11-20 23:42:05,470 INFO L226 Difference]: Without dead ends: 19708 [2021-11-20 23:42:05,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:42:05,495 INFO L933 BasicCegarLoop]: 1562 mSDtfsCounter, 233 mSDsluCounter, 5367 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 55 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 6194 SdHoareTripleChecker+Invalid, 1052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:42:05,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 6194 Invalid, 1052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 995 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2021-11-20 23:42:05,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19708 states. [2021-11-20 23:42:07,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19708 to 18788. [2021-11-20 23:42:07,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18788 states, 11324 states have (on average 1.2763157894736843) internal successors, (14453), 12031 states have internal predecessors, (14453), 5887 states have call successors, (5887), 1542 states have call predecessors, (5887), 1565 states have return successors, (8894), 5559 states have call predecessors, (8894), 5883 states have call successors, (8894) [2021-11-20 23:42:07,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18788 states to 18788 states and 29234 transitions. [2021-11-20 23:42:07,338 INFO L78 Accepts]: Start accepts. Automaton has 18788 states and 29234 transitions. Word has length 229 [2021-11-20 23:42:07,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:42:07,339 INFO L470 AbstractCegarLoop]: Abstraction has 18788 states and 29234 transitions. [2021-11-20 23:42:07,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 4 states have call successors, (34), 3 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 23:42:07,339 INFO L276 IsEmpty]: Start isEmpty. Operand 18788 states and 29234 transitions. [2021-11-20 23:42:07,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-20 23:42:07,344 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:42:07,344 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:42:07,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-20 23:42:07,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:42:07,556 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:42:07,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:42:07,556 INFO L85 PathProgramCache]: Analyzing trace with hash -367594454, now seen corresponding path program 1 times [2021-11-20 23:42:07,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:42:07,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045900055] [2021-11-20 23:42:07,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:42:07,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:42:07,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:42:07,827 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2021-11-20 23:42:07,827 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:42:07,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045900055] [2021-11-20 23:42:07,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045900055] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:42:07,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:42:07,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 23:42:07,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460808817] [2021-11-20 23:42:07,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:42:07,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:42:07,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:42:07,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:42:07,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:42:07,830 INFO L87 Difference]: Start difference. First operand 18788 states and 29234 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (40), 4 states have call predecessors, (40), 2 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-20 23:42:12,808 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:42:16,801 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:42:18,834 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:42:24,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:42:24,364 INFO L93 Difference]: Finished difference Result 19003 states and 29855 transitions. [2021-11-20 23:42:24,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 23:42:24,364 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (40), 4 states have call predecessors, (40), 2 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 210 [2021-11-20 23:42:24,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:42:24,418 INFO L225 Difference]: With dead ends: 19003 [2021-11-20 23:42:24,419 INFO L226 Difference]: Without dead ends: 19001 [2021-11-20 23:42:24,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-20 23:42:24,426 INFO L933 BasicCegarLoop]: 1111 mSDtfsCounter, 1780 mSDsluCounter, 2308 mSDsCounter, 0 mSdLazyCounter, 2699 mSolverCounterSat, 1089 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1943 SdHoareTripleChecker+Valid, 3076 SdHoareTripleChecker+Invalid, 3790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1089 IncrementalHoareTripleChecker+Valid, 2699 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:42:24,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1943 Valid, 3076 Invalid, 3790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1089 Valid, 2699 Invalid, 2 Unknown, 0 Unchecked, 14.8s Time] [2021-11-20 23:42:24,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19001 states. [2021-11-20 23:42:26,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19001 to 18853. [2021-11-20 23:42:26,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18853 states, 11361 states have (on average 1.2746237127013467) internal successors, (14481), 12074 states have internal predecessors, (14481), 5883 states have call successors, (5883), 1565 states have call predecessors, (5883), 1598 states have return successors, (8923), 5557 states have call predecessors, (8923), 5879 states have call successors, (8923) [2021-11-20 23:42:26,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18853 states to 18853 states and 29287 transitions. [2021-11-20 23:42:26,347 INFO L78 Accepts]: Start accepts. Automaton has 18853 states and 29287 transitions. Word has length 210 [2021-11-20 23:42:26,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:42:26,348 INFO L470 AbstractCegarLoop]: Abstraction has 18853 states and 29287 transitions. [2021-11-20 23:42:26,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (40), 4 states have call predecessors, (40), 2 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-20 23:42:26,348 INFO L276 IsEmpty]: Start isEmpty. Operand 18853 states and 29287 transitions. [2021-11-20 23:42:26,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-20 23:42:26,352 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:42:26,352 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:42:26,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-20 23:42:26,353 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-20 23:42:26,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:42:26,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1411796800, now seen corresponding path program 1 times [2021-11-20 23:42:26,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:42:26,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024254529] [2021-11-20 23:42:26,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:42:26,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:42:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:42:26,622 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2021-11-20 23:42:26,622 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:42:26,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024254529] [2021-11-20 23:42:26,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024254529] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:42:26,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647327448] [2021-11-20 23:42:26,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:42:26,623 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:42:26,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:42:26,624 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:42:26,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ac10aa-c1ef-4623-a894-9587990a3f7f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 23:42:27,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:42:27,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 2272 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-20 23:42:27,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:42:28,161 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 108 proven. 2 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2021-11-20 23:42:28,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:42:28,966 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2021-11-20 23:42:28,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647327448] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:42:28,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2127469585] [2021-11-20 23:42:28,997 INFO L159 IcfgInterpreter]: Started Sifa with 144 locations of interest [2021-11-20 23:42:28,997 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:42:29,003 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:42:29,008 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:42:29,009 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:42:32,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-20 23:42:33,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 147 [2021-11-20 23:42:33,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2021-11-20 23:42:33,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-20 23:42:34,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-20 23:42:34,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-20 23:42:36,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 157 [2021-11-20 23:42:36,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:36,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2021-11-20 23:42:36,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-20 23:42:37,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-20 23:42:37,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-20 23:42:42,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-20 23:42:43,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-20 23:42:43,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-20 23:42:46,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-20 23:42:46,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-20 23:42:47,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 600 treesize of output 515 [2021-11-20 23:42:50,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-20 23:42:51,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11