./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--gpu--drm--ast--ast.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_ded7e09b-a75f-4969-be50-979b2b1d3d6b/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/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_ded7e09b-a75f-4969-be50-979b2b1d3d6b/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/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_ded7e09b-a75f-4969-be50-979b2b1d3d6b/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 ca0a53c4f6c5b2fe175dc6e02f972fead30c92e05ea428ef0a5b4e9fd4cc9337 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:41:11,447 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:41:11,449 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:41:11,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:41:11,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:41:11,481 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:41:11,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:41:11,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:41:11,488 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:41:11,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:41:11,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:41:11,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:41:11,492 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:41:11,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:41:11,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:41:11,497 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:41:11,498 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:41:11,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:41:11,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:41:11,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:41:11,512 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:41:11,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:41:11,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:41:11,529 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:41:11,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:41:11,540 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:41:11,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:41:11,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:41:11,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:41:11,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:41:11,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:41:11,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:41:11,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:41:11,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:41:11,548 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:41:11,548 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:41:11,549 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:41:11,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:41:11,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:41:11,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:41:11,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:41:11,552 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:41:11,576 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:41:11,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:41:11,577 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:41:11,577 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:41:11,578 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:41:11,578 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:41:11,578 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:41:11,578 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:41:11,579 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:41:11,579 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:41:11,579 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:41:11,579 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:41:11,579 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:41:11,580 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:41:11,580 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:41:11,580 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:41:11,580 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:41:11,581 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:41:11,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:41:11,582 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:41:11,582 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:41:11,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:41:11,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:41:11,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:41:11,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:41:11,583 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:41:11,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:41:11,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:41:11,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:41:11,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:41:11,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:41:11,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:41:11,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:41:11,585 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:41:11,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:41:11,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:41:11,585 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:41:11,586 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:41:11,586 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_ded7e09b-a75f-4969-be50-979b2b1d3d6b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca0a53c4f6c5b2fe175dc6e02f972fead30c92e05ea428ef0a5b4e9fd4cc9337 [2021-11-21 01:41:11,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:41:11,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:41:11,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:41:11,878 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:41:11,879 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:41:11,880 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i [2021-11-21 01:41:11,950 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/bin/utaipan-TEXQjIfE4P/data/628fd234b/6d4b6894859b4bf98292540c99de6d94/FLAG1be42865d [2021-11-21 01:41:13,147 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:41:13,147 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i [2021-11-21 01:41:13,222 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/bin/utaipan-TEXQjIfE4P/data/628fd234b/6d4b6894859b4bf98292540c99de6d94/FLAG1be42865d [2021-11-21 01:41:13,330 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/bin/utaipan-TEXQjIfE4P/data/628fd234b/6d4b6894859b4bf98292540c99de6d94 [2021-11-21 01:41:13,332 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:41:13,334 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:41:13,335 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:41:13,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:41:13,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:41:13,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:41:13" (1/1) ... [2021-11-21 01:41:13,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a60a1bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:13, skipping insertion in model container [2021-11-21 01:41:13,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:41:13" (1/1) ... [2021-11-21 01:41:13,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:41:13,620 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:41:21,421 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[614473,614486] [2021-11-21 01:41:21,424 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[614618,614631] [2021-11-21 01:41:21,425 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[614764,614777] [2021-11-21 01:41:21,426 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[614929,614942] [2021-11-21 01:41:21,427 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[615087,615100] [2021-11-21 01:41:21,431 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[615245,615258] [2021-11-21 01:41:21,431 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[615403,615416] [2021-11-21 01:41:21,434 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[615563,615576] [2021-11-21 01:41:21,435 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[615722,615735] [2021-11-21 01:41:21,435 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[615861,615874] [2021-11-21 01:41:21,436 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[616003,616016] [2021-11-21 01:41:21,437 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[616152,616165] [2021-11-21 01:41:21,437 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[616291,616304] [2021-11-21 01:41:21,438 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[616446,616459] [2021-11-21 01:41:21,439 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[616606,616619] [2021-11-21 01:41:21,439 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[616757,616770] [2021-11-21 01:41:21,447 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[616908,616921] [2021-11-21 01:41:21,447 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[617060,617073] [2021-11-21 01:41:21,449 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[617209,617222] [2021-11-21 01:41:21,451 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[617357,617370] [2021-11-21 01:41:21,457 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[617514,617527] [2021-11-21 01:41:21,458 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[617663,617676] [2021-11-21 01:41:21,458 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[617819,617832] [2021-11-21 01:41:21,459 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[617972,617985] [2021-11-21 01:41:21,461 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[618118,618131] [2021-11-21 01:41:21,461 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[618261,618274] [2021-11-21 01:41:21,462 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[618413,618426] [2021-11-21 01:41:21,462 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[618559,618572] [2021-11-21 01:41:21,463 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[618704,618717] [2021-11-21 01:41:21,463 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[618858,618871] [2021-11-21 01:41:21,465 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[619009,619022] [2021-11-21 01:41:21,465 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[619164,619177] [2021-11-21 01:41:21,465 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[619316,619329] [2021-11-21 01:41:21,466 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[619471,619484] [2021-11-21 01:41:21,466 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[619635,619648] [2021-11-21 01:41:21,469 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[619791,619804] [2021-11-21 01:41:21,469 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[619955,619968] [2021-11-21 01:41:21,470 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[620097,620110] [2021-11-21 01:41:21,471 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[620255,620268] [2021-11-21 01:41:21,471 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[620422,620435] [2021-11-21 01:41:21,472 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[620581,620594] [2021-11-21 01:41:21,472 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[620740,620753] [2021-11-21 01:41:21,473 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[620889,620902] [2021-11-21 01:41:21,474 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[621036,621049] [2021-11-21 01:41:21,474 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[621175,621188] [2021-11-21 01:41:21,474 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[621338,621351] [2021-11-21 01:41:21,475 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[621504,621517] [2021-11-21 01:41:21,476 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[621668,621681] [2021-11-21 01:41:21,477 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[621833,621846] [2021-11-21 01:41:21,477 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[621998,622011] [2021-11-21 01:41:21,478 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[622164,622177] [2021-11-21 01:41:21,478 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[622329,622342] [2021-11-21 01:41:21,479 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[622496,622509] [2021-11-21 01:41:21,479 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[622656,622669] [2021-11-21 01:41:21,483 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[622818,622831] [2021-11-21 01:41:21,484 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[622977,622990] [2021-11-21 01:41:21,485 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[623123,623136] [2021-11-21 01:41:21,485 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[623266,623279] [2021-11-21 01:41:21,485 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[623410,623423] [2021-11-21 01:41:21,486 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[623553,623566] [2021-11-21 01:41:21,486 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[623697,623710] [2021-11-21 01:41:21,487 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[623838,623851] [2021-11-21 01:41:21,488 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[623976,623989] [2021-11-21 01:41:21,488 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[624134,624147] [2021-11-21 01:41:21,489 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[624293,624306] [2021-11-21 01:41:21,489 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[624449,624462] [2021-11-21 01:41:21,489 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[624598,624611] [2021-11-21 01:41:21,490 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[624750,624763] [2021-11-21 01:41:21,490 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[624901,624914] [2021-11-21 01:41:21,491 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[625050,625063] [2021-11-21 01:41:21,491 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[625202,625215] [2021-11-21 01:41:21,492 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[625350,625363] [2021-11-21 01:41:21,492 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[625503,625516] [2021-11-21 01:41:21,493 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[625654,625667] [2021-11-21 01:41:21,494 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[625804,625817] [2021-11-21 01:41:21,495 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[625951,625964] [2021-11-21 01:41:21,495 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[626102,626115] [2021-11-21 01:41:21,496 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[626253,626266] [2021-11-21 01:41:21,496 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[626401,626414] [2021-11-21 01:41:21,496 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[626567,626580] [2021-11-21 01:41:21,497 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[626736,626749] [2021-11-21 01:41:21,497 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[626903,626916] [2021-11-21 01:41:21,498 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[627071,627084] [2021-11-21 01:41:21,498 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[627221,627234] [2021-11-21 01:41:21,499 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[627368,627381] [2021-11-21 01:41:21,500 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[627529,627542] [2021-11-21 01:41:21,501 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[627699,627712] [2021-11-21 01:41:21,501 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[627861,627874] [2021-11-21 01:41:21,534 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:41:21,626 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:41:22,258 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[614473,614486] [2021-11-21 01:41:22,259 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[614618,614631] [2021-11-21 01:41:22,264 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[614764,614777] [2021-11-21 01:41:22,264 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[614929,614942] [2021-11-21 01:41:22,265 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[615087,615100] [2021-11-21 01:41:22,265 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[615245,615258] [2021-11-21 01:41:22,266 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[615403,615416] [2021-11-21 01:41:22,266 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[615563,615576] [2021-11-21 01:41:22,266 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[615722,615735] [2021-11-21 01:41:22,267 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[615861,615874] [2021-11-21 01:41:22,268 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[616003,616016] [2021-11-21 01:41:22,269 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[616152,616165] [2021-11-21 01:41:22,269 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[616291,616304] [2021-11-21 01:41:22,270 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[616446,616459] [2021-11-21 01:41:22,270 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[616606,616619] [2021-11-21 01:41:22,271 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[616757,616770] [2021-11-21 01:41:22,271 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[616908,616921] [2021-11-21 01:41:22,271 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[617060,617073] [2021-11-21 01:41:22,272 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[617209,617222] [2021-11-21 01:41:22,272 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[617357,617370] [2021-11-21 01:41:22,272 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[617514,617527] [2021-11-21 01:41:22,273 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[617663,617676] [2021-11-21 01:41:22,274 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[617819,617832] [2021-11-21 01:41:22,274 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[617972,617985] [2021-11-21 01:41:22,275 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[618118,618131] [2021-11-21 01:41:22,275 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[618261,618274] [2021-11-21 01:41:22,275 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[618413,618426] [2021-11-21 01:41:22,276 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[618559,618572] [2021-11-21 01:41:22,277 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[618704,618717] [2021-11-21 01:41:22,277 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[618858,618871] [2021-11-21 01:41:22,277 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[619009,619022] [2021-11-21 01:41:22,278 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[619164,619177] [2021-11-21 01:41:22,278 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[619316,619329] [2021-11-21 01:41:22,278 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[619471,619484] [2021-11-21 01:41:22,279 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[619635,619648] [2021-11-21 01:41:22,279 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[619791,619804] [2021-11-21 01:41:22,279 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[619955,619968] [2021-11-21 01:41:22,280 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[620097,620110] [2021-11-21 01:41:22,280 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[620255,620268] [2021-11-21 01:41:22,280 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[620422,620435] [2021-11-21 01:41:22,280 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[620581,620594] [2021-11-21 01:41:22,281 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[620740,620753] [2021-11-21 01:41:22,281 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[620889,620902] [2021-11-21 01:41:22,281 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[621036,621049] [2021-11-21 01:41:22,282 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[621175,621188] [2021-11-21 01:41:22,282 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[621338,621351] [2021-11-21 01:41:22,282 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[621504,621517] [2021-11-21 01:41:22,282 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[621668,621681] [2021-11-21 01:41:22,282 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[621833,621846] [2021-11-21 01:41:22,283 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[621998,622011] [2021-11-21 01:41:22,283 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[622164,622177] [2021-11-21 01:41:22,283 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[622329,622342] [2021-11-21 01:41:22,284 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[622496,622509] [2021-11-21 01:41:22,284 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[622656,622669] [2021-11-21 01:41:22,284 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[622818,622831] [2021-11-21 01:41:22,284 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[622977,622990] [2021-11-21 01:41:22,285 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[623123,623136] [2021-11-21 01:41:22,285 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[623266,623279] [2021-11-21 01:41:22,285 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[623410,623423] [2021-11-21 01:41:22,286 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[623553,623566] [2021-11-21 01:41:22,286 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[623697,623710] [2021-11-21 01:41:22,286 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[623838,623851] [2021-11-21 01:41:22,287 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[623976,623989] [2021-11-21 01:41:22,287 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[624134,624147] [2021-11-21 01:41:22,287 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[624293,624306] [2021-11-21 01:41:22,288 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[624449,624462] [2021-11-21 01:41:22,288 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[624598,624611] [2021-11-21 01:41:22,288 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[624750,624763] [2021-11-21 01:41:22,289 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[624901,624914] [2021-11-21 01:41:22,289 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[625050,625063] [2021-11-21 01:41:22,289 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[625202,625215] [2021-11-21 01:41:22,294 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[625350,625363] [2021-11-21 01:41:22,295 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[625503,625516] [2021-11-21 01:41:22,295 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[625654,625667] [2021-11-21 01:41:22,296 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[625804,625817] [2021-11-21 01:41:22,296 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[625951,625964] [2021-11-21 01:41:22,297 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[626102,626115] [2021-11-21 01:41:22,297 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[626253,626266] [2021-11-21 01:41:22,298 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[626401,626414] [2021-11-21 01:41:22,299 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[626567,626580] [2021-11-21 01:41:22,300 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[626736,626749] [2021-11-21 01:41:22,301 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[626903,626916] [2021-11-21 01:41:22,302 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[627071,627084] [2021-11-21 01:41:22,302 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[627221,627234] [2021-11-21 01:41:22,302 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[627368,627381] [2021-11-21 01:41:22,303 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[627529,627542] [2021-11-21 01:41:22,303 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[627699,627712] [2021-11-21 01:41:22,304 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i[627861,627874] [2021-11-21 01:41:22,314 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:41:23,070 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:41:23,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:23 WrapperNode [2021-11-21 01:41:23,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:41:23,073 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:41:23,073 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:41:23,073 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:41:23,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:23" (1/1) ... [2021-11-21 01:41:23,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:23" (1/1) ... [2021-11-21 01:41:23,693 INFO L137 Inliner]: procedures = 962, calls = 5080, calls flagged for inlining = 555, calls inlined = 474, statements flattened = 13245 [2021-11-21 01:41:23,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:41:23,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:41:23,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:41:23,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:41:23,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:23" (1/1) ... [2021-11-21 01:41:23,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:23" (1/1) ... [2021-11-21 01:41:23,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:23" (1/1) ... [2021-11-21 01:41:23,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:23" (1/1) ... [2021-11-21 01:41:24,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:23" (1/1) ... [2021-11-21 01:41:24,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:23" (1/1) ... [2021-11-21 01:41:24,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:23" (1/1) ... [2021-11-21 01:41:24,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:41:24,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:41:24,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:41:24,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:41:24,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:23" (1/1) ... [2021-11-21 01:41:24,354 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:41:24,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:41:24,387 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:41:24,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:41:24,433 INFO L130 BoogieDeclarations]: Found specification of procedure wait_ack [2021-11-21 01:41:24,434 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_ack [2021-11-21 01:41:24,434 INFO L130 BoogieDeclarations]: Found specification of procedure clear_cmd_trigger [2021-11-21 01:41:24,434 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_cmd_trigger [2021-11-21 01:41:24,434 INFO L130 BoogieDeclarations]: Found specification of procedure ast_init_dvo [2021-11-21 01:41:24,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_init_dvo [2021-11-21 01:41:24,434 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_unreserve___0 [2021-11-21 01:41:24,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_unreserve___0 [2021-11-21 01:41:24,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-21 01:41:24,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-21 01:41:24,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-21 01:41:24,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-21 01:41:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure __ww_mutex_lock [2021-11-21 01:41:24,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __ww_mutex_lock [2021-11-21 01:41:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_tt_populate [2021-11-21 01:41:24,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_tt_populate [2021-11-21 01:41:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_base_of_ww_mutex [2021-11-21 01:41:24,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_base_of_ww_mutex [2021-11-21 01:41:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_pin [2021-11-21 01:41:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_pin [2021-11-21 01:41:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure ast_read32 [2021-11-21 01:41:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_read32 [2021-11-21 01:41:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-21 01:41:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-21 01:41:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure ast_drm_thaw [2021-11-21 01:41:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_drm_thaw [2021-11-21 01:41:24,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_109 [2021-11-21 01:41:24,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_109 [2021-11-21 01:41:24,439 INFO L130 BoogieDeclarations]: Found specification of procedure ast_dirty_update [2021-11-21 01:41:24,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_dirty_update [2021-11-21 01:41:24,439 INFO L130 BoogieDeclarations]: Found specification of procedure ast_enable_vga [2021-11-21 01:41:24,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_enable_vga [2021-11-21 01:41:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-21 01:41:24,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-21 01:41:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure ast_get_modes [2021-11-21 01:41:24,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_get_modes [2021-11-21 01:41:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure drm_fb_helper_fini [2021-11-21 01:41:24,440 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_fb_helper_fini [2021-11-21 01:41:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kmap [2021-11-21 01:41:24,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kmap [2021-11-21 01:41:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_del_sub_from_lru [2021-11-21 01:41:24,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_del_sub_from_lru [2021-11-21 01:41:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_placement [2021-11-21 01:41:24,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_placement [2021-11-21 01:41:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_unless___0 [2021-11-21 01:41:24,441 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_unless___0 [2021-11-21 01:41:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure ast_pm_poweroff [2021-11-21 01:41:24,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_pm_poweroff [2021-11-21 01:41:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kunmap [2021-11-21 01:41:24,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kunmap [2021-11-21 01:41:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure ast_user_framebuffer_destroy [2021-11-21 01:41:24,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_user_framebuffer_destroy [2021-11-21 01:41:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure send_ack [2021-11-21 01:41:24,443 INFO L138 BoogieDeclarations]: Found implementation of procedure send_ack [2021-11-21 01:41:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 01:41:24,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 01:41:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_disable [2021-11-21 01:41:24,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_disable [2021-11-21 01:41:24,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-21 01:41:24,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-21 01:41:24,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:41:24,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-21 01:41:24,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-21 01:41:24,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-21 01:41:24,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-21 01:41:24,445 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_set_base [2021-11-21 01:41:24,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_set_base [2021-11-21 01:41:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure ast_io_read8 [2021-11-21 01:41:24,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_io_read8 [2021-11-21 01:41:24,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-21 01:41:24,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-21 01:41:24,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_check_return_value_probe [2021-11-21 01:41:24,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_check_return_value_probe [2021-11-21 01:41:24,449 INFO L130 BoogieDeclarations]: Found specification of procedure drm_fb_helper_debug_enter [2021-11-21 01:41:24,449 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_fb_helper_debug_enter [2021-11-21 01:41:24,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:41:24,455 INFO L130 BoogieDeclarations]: Found specification of procedure ast_post_gpu [2021-11-21 01:41:24,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_post_gpu [2021-11-21 01:41:24,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_check_return_value_probe [2021-11-21 01:41:24,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_check_return_value_probe [2021-11-21 01:41:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:41:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 01:41:24,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 01:41:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-21 01:41:24,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-21 01:41:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure ast_fbdev_set_suspend [2021-11-21 01:41:24,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_fbdev_set_suspend [2021-11-21 01:41:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:41:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-21 01:41:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_add_to_lru [2021-11-21 01:41:24,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_add_to_lru [2021-11-21 01:41:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_test_burst2 [2021-11-21 01:41:24,457 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_test_burst2 [2021-11-21 01:41:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-21 01:41:24,457 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-21 01:41:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure drm_read [2021-11-21 01:41:24,458 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_read [2021-11-21 01:41:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:41:24,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:41:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 01:41:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure drm_fb_helper_debug_leave [2021-11-21 01:41:24,458 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_fb_helper_debug_leave [2021-11-21 01:41:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-21 01:41:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_prepare [2021-11-21 01:41:24,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_prepare [2021-11-21 01:41:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_prepare [2021-11-21 01:41:24,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_prepare [2021-11-21 01:41:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_reserve [2021-11-21 01:41:24,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_reserve [2021-11-21 01:41:24,460 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked [2021-11-21 01:41:24,460 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked [2021-11-21 01:41:24,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-21 01:41:24,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-21 01:41:24,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-21 01:41:24,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-21 01:41:24,460 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-21 01:41:24,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-21 01:41:24,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-21 01:41:24,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-21 01:41:24,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:41:24,462 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_free [2021-11-21 01:41:24,462 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_free [2021-11-21 01:41:24,462 INFO L130 BoogieDeclarations]: Found specification of procedure ast_pm_thaw [2021-11-21 01:41:24,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_pm_thaw [2021-11-21 01:41:24,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-21 01:41:24,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-21 01:41:24,463 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_release [2021-11-21 01:41:24,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_113 [2021-11-21 01:41:24,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_113 [2021-11-21 01:41:24,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:41:24,463 INFO L130 BoogieDeclarations]: Found specification of procedure ast_connector_destroy [2021-11-21 01:41:24,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_connector_destroy [2021-11-21 01:41:24,463 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_commit [2021-11-21 01:41:24,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_commit [2021-11-21 01:41:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-21 01:41:24,464 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-21 01:41:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_kmap_obj_virtual [2021-11-21 01:41:24,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_kmap_obj_virtual [2021-11-21 01:41:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-21 01:41:24,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-21 01:41:24,465 INFO L130 BoogieDeclarations]: Found specification of procedure ast_write32 [2021-11-21 01:41:24,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_write32 [2021-11-21 01:41:24,465 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked___0 [2021-11-21 01:41:24,465 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked___0 [2021-11-21 01:41:24,465 INFO L130 BoogieDeclarations]: Found specification of procedure __ttm_bo_unreserve [2021-11-21 01:41:24,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __ttm_bo_unreserve [2021-11-21 01:41:24,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-21 01:41:24,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-21 01:41:24,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-21 01:41:24,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-21 01:41:24,466 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo [2021-11-21 01:41:24,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo [2021-11-21 01:41:24,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-21 01:41:24,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-21 01:41:24,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_base_of_ww_mutex [2021-11-21 01:41:24,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_base_of_ww_mutex [2021-11-21 01:41:24,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:41:24,467 INFO L130 BoogieDeclarations]: Found specification of procedure ast_moutdwm [2021-11-21 01:41:24,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_moutdwm [2021-11-21 01:41:24,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 01:41:24,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 01:41:24,468 INFO L130 BoogieDeclarations]: Found specification of procedure ast_pm_suspend [2021-11-21 01:41:24,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_pm_suspend [2021-11-21 01:41:24,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_108 [2021-11-21 01:41:24,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_108 [2021-11-21 01:41:24,468 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_ref [2021-11-21 01:41:24,468 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_ref [2021-11-21 01:41:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-21 01:41:24,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-21 01:41:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure wait_nack [2021-11-21 01:41:24,469 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_nack [2021-11-21 01:41:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 01:41:24,469 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 01:41:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 01:41:24,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 01:41:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure ast_drm_freeze [2021-11-21 01:41:24,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_drm_freeze [2021-11-21 01:41:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-21 01:41:24,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-21 01:41:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-21 01:41:24,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-21 01:41:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure ast_set_dp501_video_output [2021-11-21 01:41:24,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_set_dp501_video_output [2021-11-21 01:41:24,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 01:41:24,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 01:41:24,471 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-11-21 01:41:24,471 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-11-21 01:41:24,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 01:41:24,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 01:41:24,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-21 01:41:24,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-21 01:41:24,472 INFO L130 BoogieDeclarations]: Found specification of procedure cbr_dll2 [2021-11-21 01:41:24,472 INFO L138 BoogieDeclarations]: Found implementation of procedure cbr_dll2 [2021-11-21 01:41:24,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_try [2021-11-21 01:41:24,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_try [2021-11-21 01:41:24,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:41:24,476 INFO L130 BoogieDeclarations]: Found specification of procedure ast_set_index_reg_mask [2021-11-21 01:41:24,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_set_index_reg_mask [2021-11-21 01:41:24,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_trylock_base_of_ww_mutex [2021-11-21 01:41:24,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_trylock_base_of_ww_mutex [2021-11-21 01:41:24,476 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_load_lut [2021-11-21 01:41:24,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_load_lut [2021-11-21 01:41:24,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 01:41:24,478 INFO L130 BoogieDeclarations]: Found specification of procedure ast_mindwm [2021-11-21 01:41:24,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_mindwm [2021-11-21 01:41:24,478 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_unref [2021-11-21 01:41:24,478 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_unref [2021-11-21 01:41:24,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 01:41:24,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-21 01:41:24,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-21 01:41:24,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-21 01:41:24,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-21 01:41:24,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-21 01:41:24,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-21 01:41:24,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-21 01:41:24,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-21 01:41:24,479 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-11-21 01:41:24,480 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-11-21 01:41:24,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-21 01:41:24,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-21 01:41:24,480 INFO L130 BoogieDeclarations]: Found specification of procedure get_fw_base [2021-11-21 01:41:24,480 INFO L138 BoogieDeclarations]: Found implementation of procedure get_fw_base [2021-11-21 01:41:24,480 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 01:41:24,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 01:41:24,480 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:41:24,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:41:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure ast_framebuffer_init [2021-11-21 01:41:24,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_framebuffer_init [2021-11-21 01:41:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure ast_open_key [2021-11-21 01:41:24,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_open_key [2021-11-21 01:41:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_validate [2021-11-21 01:41:24,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_validate [2021-11-21 01:41:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-21 01:41:24,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-21 01:41:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure ast_driver_unload [2021-11-21 01:41:24,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_driver_unload [2021-11-21 01:41:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_unreserve [2021-11-21 01:41:24,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_unreserve [2021-11-21 01:41:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-21 01:41:24,482 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-21 01:41:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-11-21 01:41:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 01:41:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 01:41:24,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 01:41:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure send_nack [2021-11-21 01:41:24,483 INFO L138 BoogieDeclarations]: Found implementation of procedure send_nack [2021-11-21 01:41:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-21 01:41:24,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-21 01:41:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure ast_enable_mmio [2021-11-21 01:41:24,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_enable_mmio [2021-11-21 01:41:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure ast_get_index_reg_mask [2021-11-21 01:41:24,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_get_index_reg_mask [2021-11-21 01:41:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure ast_gem_create [2021-11-21 01:41:24,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_gem_create [2021-11-21 01:41:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_struct_mutex_of_drm_device [2021-11-21 01:41:24,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_struct_mutex_of_drm_device [2021-11-21 01:41:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-21 01:41:24,485 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-21 01:41:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure drm_fb_helper_set_par [2021-11-21 01:41:24,485 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_fb_helper_set_par [2021-11-21 01:41:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure __ww_mutex_lock_interruptible [2021-11-21 01:41:24,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __ww_mutex_lock_interruptible [2021-11-21 01:41:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:41:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-21 01:41:24,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-21 01:41:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-21 01:41:24,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-21 01:41:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure ast_pm_resume [2021-11-21 01:41:24,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_pm_resume [2021-11-21 01:41:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-21 01:41:24,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-21 01:41:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_init [2021-11-21 01:41:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 01:41:24,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 01:41:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure ast_io_write8 [2021-11-21 01:41:24,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_io_write8 [2021-11-21 01:41:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_destroy [2021-11-21 01:41:24,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_destroy [2021-11-21 01:41:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_gpu_offset [2021-11-21 01:41:24,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_gpu_offset [2021-11-21 01:41:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_reset [2021-11-21 01:41:24,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_reset [2021-11-21 01:41:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure ast_gem_free_object [2021-11-21 01:41:24,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_gem_free_object [2021-11-21 01:41:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_backend_destroy [2021-11-21 01:41:24,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_backend_destroy [2021-11-21 01:41:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-21 01:41:24,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-21 01:41:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure ast_pci_remove [2021-11-21 01:41:24,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_pci_remove [2021-11-21 01:41:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_test_single2 [2021-11-21 01:41:24,489 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_test_single2 [2021-11-21 01:41:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-21 01:41:24,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-21 01:41:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 01:41:24,490 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 01:41:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-21 01:41:24,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-21 01:41:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure ast_set_index_reg [2021-11-21 01:41:24,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_set_index_reg [2021-11-21 01:41:24,491 INFO L130 BoogieDeclarations]: Found specification of procedure cbrdlli_ast2150 [2021-11-21 01:41:24,491 INFO L138 BoogieDeclarations]: Found implementation of procedure cbrdlli_ast2150 [2021-11-21 01:41:24,491 INFO L130 BoogieDeclarations]: Found specification of procedure drm_framebuffer_cleanup [2021-11-21 01:41:24,491 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_framebuffer_cleanup [2021-11-21 01:41:24,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-21 01:41:24,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-21 01:41:24,491 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_commit [2021-11-21 01:41:24,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_commit [2021-11-21 01:41:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure ast_pm_freeze [2021-11-21 01:41:24,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_pm_freeze [2021-11-21 01:41:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure drm_crtc_helper_set_config [2021-11-21 01:41:24,492 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_crtc_helper_set_config [2021-11-21 01:41:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2021-11-21 01:41:24,492 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2021-11-21 01:41:24,493 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2021-11-21 01:41:24,493 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2021-11-21 01:41:24,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 01:41:24,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 01:41:24,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-21 01:41:24,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-21 01:41:24,493 INFO L130 BoogieDeclarations]: Found specification of procedure drm_mode_connector_update_edid_property [2021-11-21 01:41:24,494 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_mode_connector_update_edid_property [2021-11-21 01:41:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-21 01:41:24,494 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-21 01:41:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_struct_mutex_of_drm_device [2021-11-21 01:41:24,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_struct_mutex_of_drm_device [2021-11-21 01:41:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_tt_unpopulate [2021-11-21 01:41:24,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_tt_unpopulate [2021-11-21 01:41:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_lookup [2021-11-21 01:41:24,495 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_lookup [2021-11-21 01:41:24,495 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_destroy [2021-11-21 01:41:24,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_destroy [2021-11-21 01:41:24,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:41:26,094 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:41:26,101 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:41:26,294 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 01:41:41,381 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:41:44,275 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:41:44,275 INFO L301 CfgBuilder]: Removed 9 assume(true) statements. [2021-11-21 01:41:44,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:41:44 BoogieIcfgContainer [2021-11-21 01:41:44,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:41:44,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:41:44,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:41:44,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:41:44,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:41:13" (1/3) ... [2021-11-21 01:41:44,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aaa04b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:41:44, skipping insertion in model container [2021-11-21 01:41:44,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:23" (2/3) ... [2021-11-21 01:41:44,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aaa04b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:41:44, skipping insertion in model container [2021-11-21 01:41:44,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:41:44" (3/3) ... [2021-11-21 01:41:44,301 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--gpu--drm--ast--ast.ko.cil.i [2021-11-21 01:41:44,309 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:41:44,310 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2021-11-21 01:41:44,381 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:41:44,392 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 [2021-11-21 01:41:44,392 INFO L340 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2021-11-21 01:41:44,487 INFO L276 IsEmpty]: Start isEmpty. Operand has 2876 states, 1675 states have (on average 1.3791044776119403) internal successors, (2310), 1807 states have internal predecessors, (2310), 1013 states have call successors, (1013), 156 states have call predecessors, (1013), 155 states have return successors, (999), 958 states have call predecessors, (999), 999 states have call successors, (999) [2021-11-21 01:41:44,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-21 01:41:44,493 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:44,494 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:41:44,494 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:41:44,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:44,501 INFO L85 PathProgramCache]: Analyzing trace with hash -872878498, now seen corresponding path program 1 times [2021-11-21 01:41:44,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:44,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842611739] [2021-11-21 01:41:44,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:44,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:45,452 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:41:45,453 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:45,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842611739] [2021-11-21 01:41:45,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842611739] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:45,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:45,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:41:45,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381595562] [2021-11-21 01:41:45,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:45,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:41:45,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:45,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:41:45,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:41:45,507 INFO L87 Difference]: Start difference. First operand has 2876 states, 1675 states have (on average 1.3791044776119403) internal successors, (2310), 1807 states have internal predecessors, (2310), 1013 states have call successors, (1013), 156 states have call predecessors, (1013), 155 states have return successors, (999), 958 states have call predecessors, (999), 999 states have call successors, (999) Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-21 01:41:48,596 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 [] [2021-11-21 01:41:53,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:53,170 INFO L93 Difference]: Finished difference Result 6786 states and 10258 transitions. [2021-11-21 01:41:53,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:41:53,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 36 [2021-11-21 01:41:53,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:53,256 INFO L225 Difference]: With dead ends: 6786 [2021-11-21 01:41:53,256 INFO L226 Difference]: Without dead ends: 3902 [2021-11-21 01:41:53,290 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 [2021-11-21 01:41:53,294 INFO L933 BasicCegarLoop]: 4168 mSDtfsCounter, 4236 mSDsluCounter, 6165 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4238 SdHoareTripleChecker+Valid, 9569 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:53,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4238 Valid, 9569 Invalid, 1314 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1312 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2021-11-21 01:41:53,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3902 states. [2021-11-21 01:41:53,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3902 to 3836. [2021-11-21 01:41:53,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3836 states, 2242 states have (on average 1.3407671721677075) internal successors, (3006), 2381 states have internal predecessors, (3006), 1306 states have call successors, (1306), 257 states have call predecessors, (1306), 256 states have return successors, (1304), 1256 states have call predecessors, (1304), 1304 states have call successors, (1304) [2021-11-21 01:41:53,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3836 states to 3836 states and 5616 transitions. [2021-11-21 01:41:53,895 INFO L78 Accepts]: Start accepts. Automaton has 3836 states and 5616 transitions. Word has length 36 [2021-11-21 01:41:53,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:53,896 INFO L470 AbstractCegarLoop]: Abstraction has 3836 states and 5616 transitions. [2021-11-21 01:41:53,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-21 01:41:53,896 INFO L276 IsEmpty]: Start isEmpty. Operand 3836 states and 5616 transitions. [2021-11-21 01:41:53,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-21 01:41:53,899 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:53,899 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:41:53,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:41:53,900 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:41:53,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:53,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1228834901, now seen corresponding path program 1 times [2021-11-21 01:41:53,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:53,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057334715] [2021-11-21 01:41:53,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:53,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:54,232 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:41:54,233 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:54,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057334715] [2021-11-21 01:41:54,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057334715] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:54,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:54,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:41:54,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007009858] [2021-11-21 01:41:54,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:54,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:41:54,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:54,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:41:54,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:41:54,237 INFO L87 Difference]: Start difference. First operand 3836 states and 5616 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-21 01:41:57,054 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:01,129 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:42:03,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:03,865 INFO L93 Difference]: Finished difference Result 4129 states and 5937 transitions. [2021-11-21 01:42:03,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:42:03,866 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 41 [2021-11-21 01:42:03,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:03,904 INFO L225 Difference]: With dead ends: 4129 [2021-11-21 01:42:03,905 INFO L226 Difference]: Without dead ends: 4127 [2021-11-21 01:42:03,908 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 [2021-11-21 01:42:03,910 INFO L933 BasicCegarLoop]: 4136 mSDtfsCounter, 4147 mSDsluCounter, 6113 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4149 SdHoareTripleChecker+Valid, 9488 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:03,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4149 Valid, 9488 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1308 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2021-11-21 01:42:03,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4127 states. [2021-11-21 01:42:04,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4127 to 3975. [2021-11-21 01:42:04,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3975 states, 2323 states have (on average 1.3362031855359449) internal successors, (3104), 2466 states have internal predecessors, (3104), 1343 states have call successors, (1343), 278 states have call predecessors, (1343), 277 states have return successors, (1341), 1291 states have call predecessors, (1341), 1341 states have call successors, (1341) [2021-11-21 01:42:04,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3975 states to 3975 states and 5788 transitions. [2021-11-21 01:42:04,197 INFO L78 Accepts]: Start accepts. Automaton has 3975 states and 5788 transitions. Word has length 41 [2021-11-21 01:42:04,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:04,198 INFO L470 AbstractCegarLoop]: Abstraction has 3975 states and 5788 transitions. [2021-11-21 01:42:04,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-21 01:42:04,199 INFO L276 IsEmpty]: Start isEmpty. Operand 3975 states and 5788 transitions. [2021-11-21 01:42:04,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-21 01:42:04,203 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:04,204 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:04,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:42:04,204 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:42:04,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:04,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1948337106, now seen corresponding path program 1 times [2021-11-21 01:42:04,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:04,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52266165] [2021-11-21 01:42:04,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:04,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:04,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:04,647 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:42:04,648 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:04,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52266165] [2021-11-21 01:42:04,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52266165] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:04,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:04,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:42:04,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527291544] [2021-11-21 01:42:04,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:04,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:42:04,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:04,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:42:04,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:42:04,651 INFO L87 Difference]: Start difference. First operand 3975 states and 5788 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-21 01:42:07,644 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 [] [2021-11-21 01:42:12,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:12,526 INFO L93 Difference]: Finished difference Result 4133 states and 5938 transitions. [2021-11-21 01:42:12,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:42:12,526 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 46 [2021-11-21 01:42:12,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:12,561 INFO L225 Difference]: With dead ends: 4133 [2021-11-21 01:42:12,561 INFO L226 Difference]: Without dead ends: 4131 [2021-11-21 01:42:12,564 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 [2021-11-21 01:42:12,566 INFO L933 BasicCegarLoop]: 4133 mSDtfsCounter, 4197 mSDsluCounter, 6111 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4199 SdHoareTripleChecker+Valid, 9482 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:12,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4199 Valid, 9482 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1309 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2021-11-21 01:42:12,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4131 states. [2021-11-21 01:42:12,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4131 to 3985. [2021-11-21 01:42:12,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3985 states, 2329 states have (on average 1.335337054529841) internal successors, (3110), 2472 states have internal predecessors, (3110), 1345 states have call successors, (1345), 280 states have call predecessors, (1345), 279 states have return successors, (1343), 1293 states have call predecessors, (1343), 1343 states have call successors, (1343) [2021-11-21 01:42:12,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3985 states to 3985 states and 5798 transitions. [2021-11-21 01:42:12,821 INFO L78 Accepts]: Start accepts. Automaton has 3985 states and 5798 transitions. Word has length 46 [2021-11-21 01:42:12,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:12,822 INFO L470 AbstractCegarLoop]: Abstraction has 3985 states and 5798 transitions. [2021-11-21 01:42:12,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-21 01:42:12,822 INFO L276 IsEmpty]: Start isEmpty. Operand 3985 states and 5798 transitions. [2021-11-21 01:42:12,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-21 01:42:12,823 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:12,824 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:12,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:42:12,824 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:42:12,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:12,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1392244545, now seen corresponding path program 1 times [2021-11-21 01:42:12,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:12,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334713536] [2021-11-21 01:42:12,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:12,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:13,169 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:42:13,169 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:13,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334713536] [2021-11-21 01:42:13,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334713536] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:13,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:13,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:42:13,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781172516] [2021-11-21 01:42:13,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:13,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:42:13,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:13,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:42:13,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:42:13,172 INFO L87 Difference]: Start difference. First operand 3985 states and 5798 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-11-21 01:42:16,018 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:19,974 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 [] [2021-11-21 01:42:20,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:20,556 INFO L93 Difference]: Finished difference Result 4131 states and 5935 transitions. [2021-11-21 01:42:20,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:42:20,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 [2021-11-21 01:42:20,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:20,591 INFO L225 Difference]: With dead ends: 4131 [2021-11-21 01:42:20,592 INFO L226 Difference]: Without dead ends: 4129 [2021-11-21 01:42:20,596 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 [2021-11-21 01:42:20,597 INFO L933 BasicCegarLoop]: 4133 mSDtfsCounter, 4194 mSDsluCounter, 6111 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4196 SdHoareTripleChecker+Valid, 9482 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:20,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4196 Valid, 9482 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1309 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2021-11-21 01:42:20,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4129 states. [2021-11-21 01:42:20,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4129 to 3990. [2021-11-21 01:42:20,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3990 states, 2332 states have (on average 1.3344768439108061) internal successors, (3112), 2475 states have internal predecessors, (3112), 1346 states have call successors, (1346), 281 states have call predecessors, (1346), 280 states have return successors, (1344), 1294 states have call predecessors, (1344), 1344 states have call successors, (1344) [2021-11-21 01:42:20,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3990 states to 3990 states and 5802 transitions. [2021-11-21 01:42:20,969 INFO L78 Accepts]: Start accepts. Automaton has 3990 states and 5802 transitions. Word has length 51 [2021-11-21 01:42:20,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:20,971 INFO L470 AbstractCegarLoop]: Abstraction has 3990 states and 5802 transitions. [2021-11-21 01:42:20,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-11-21 01:42:20,972 INFO L276 IsEmpty]: Start isEmpty. Operand 3990 states and 5802 transitions. [2021-11-21 01:42:20,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-21 01:42:20,980 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:20,980 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:20,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:42:20,981 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:42:20,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:20,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1969876392, now seen corresponding path program 1 times [2021-11-21 01:42:20,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:20,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68817113] [2021-11-21 01:42:20,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:20,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:21,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:21,310 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:42:21,310 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:21,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68817113] [2021-11-21 01:42:21,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68817113] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:21,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:21,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:42:21,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540991941] [2021-11-21 01:42:21,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:21,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:42:21,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:21,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:42:21,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:42:21,313 INFO L87 Difference]: Start difference. First operand 3990 states and 5802 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-11-21 01:42:24,145 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:26,174 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 [] [2021-11-21 01:42:29,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:29,154 INFO L93 Difference]: Finished difference Result 3990 states and 5802 transitions. [2021-11-21 01:42:29,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:42:29,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 [2021-11-21 01:42:29,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:29,185 INFO L225 Difference]: With dead ends: 3990 [2021-11-21 01:42:29,186 INFO L226 Difference]: Without dead ends: 3988 [2021-11-21 01:42:29,190 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 [2021-11-21 01:42:29,191 INFO L933 BasicCegarLoop]: 3733 mSDtfsCounter, 4232 mSDsluCounter, 4247 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4234 SdHoareTripleChecker+Valid, 7466 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:29,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4234 Valid, 7466 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1030 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2021-11-21 01:42:29,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3988 states. [2021-11-21 01:42:29,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3988 to 3988. [2021-11-21 01:42:29,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3988 states, 2331 states have (on average 1.3337623337623337) internal successors, (3109), 2473 states have internal predecessors, (3109), 1346 states have call successors, (1346), 281 states have call predecessors, (1346), 280 states have return successors, (1344), 1294 states have call predecessors, (1344), 1344 states have call successors, (1344) [2021-11-21 01:42:29,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3988 states to 3988 states and 5799 transitions. [2021-11-21 01:42:29,440 INFO L78 Accepts]: Start accepts. Automaton has 3988 states and 5799 transitions. Word has length 56 [2021-11-21 01:42:29,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:29,441 INFO L470 AbstractCegarLoop]: Abstraction has 3988 states and 5799 transitions. [2021-11-21 01:42:29,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-11-21 01:42:29,441 INFO L276 IsEmpty]: Start isEmpty. Operand 3988 states and 5799 transitions. [2021-11-21 01:42:29,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-21 01:42:29,443 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:29,443 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:29,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 01:42:29,444 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:42:29,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:29,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1619116473, now seen corresponding path program 1 times [2021-11-21 01:42:29,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:29,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132558692] [2021-11-21 01:42:29,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:29,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:29,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:29,757 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:42:29,757 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:29,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132558692] [2021-11-21 01:42:29,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132558692] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:29,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:29,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:42:29,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682909571] [2021-11-21 01:42:29,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:29,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:42:29,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:29,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:42:29,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:42:29,761 INFO L87 Difference]: Start difference. First operand 3988 states and 5799 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2021-11-21 01:42:32,594 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:34,623 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:37,970 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:38,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:38,317 INFO L93 Difference]: Finished difference Result 3988 states and 5799 transitions. [2021-11-21 01:42:38,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:42:38,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 [2021-11-21 01:42:38,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:38,348 INFO L225 Difference]: With dead ends: 3988 [2021-11-21 01:42:38,348 INFO L226 Difference]: Without dead ends: 3986 [2021-11-21 01:42:38,351 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 [2021-11-21 01:42:38,352 INFO L933 BasicCegarLoop]: 3731 mSDtfsCounter, 4229 mSDsluCounter, 4245 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4231 SdHoareTripleChecker+Valid, 7462 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:38,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4231 Valid, 7462 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1030 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2021-11-21 01:42:38,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3986 states. [2021-11-21 01:42:38,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3986 to 3986. [2021-11-21 01:42:38,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3986 states, 2330 states have (on average 1.3330472103004292) internal successors, (3106), 2471 states have internal predecessors, (3106), 1346 states have call successors, (1346), 281 states have call predecessors, (1346), 280 states have return successors, (1344), 1294 states have call predecessors, (1344), 1344 states have call successors, (1344) [2021-11-21 01:42:38,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3986 states to 3986 states and 5796 transitions. [2021-11-21 01:42:38,685 INFO L78 Accepts]: Start accepts. Automaton has 3986 states and 5796 transitions. Word has length 61 [2021-11-21 01:42:38,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:38,686 INFO L470 AbstractCegarLoop]: Abstraction has 3986 states and 5796 transitions. [2021-11-21 01:42:38,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2021-11-21 01:42:38,686 INFO L276 IsEmpty]: Start isEmpty. Operand 3986 states and 5796 transitions. [2021-11-21 01:42:38,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-21 01:42:38,688 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:38,688 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:38,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 01:42:38,689 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:42:38,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:38,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1462137721, now seen corresponding path program 1 times [2021-11-21 01:42:38,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:38,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027539487] [2021-11-21 01:42:38,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:38,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:38,968 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:42:38,969 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:38,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027539487] [2021-11-21 01:42:38,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027539487] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:38,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:38,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:42:38,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612815687] [2021-11-21 01:42:38,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:38,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:42:38,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:38,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:42:38,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:42:38,971 INFO L87 Difference]: Start difference. First operand 3986 states and 5796 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2021-11-21 01:42:41,777 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:45,888 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:42:47,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:47,847 INFO L93 Difference]: Finished difference Result 4121 states and 5922 transitions. [2021-11-21 01:42:47,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:42:47,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 [2021-11-21 01:42:47,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:47,877 INFO L225 Difference]: With dead ends: 4121 [2021-11-21 01:42:47,878 INFO L226 Difference]: Without dead ends: 4119 [2021-11-21 01:42:47,881 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 [2021-11-21 01:42:47,882 INFO L933 BasicCegarLoop]: 4129 mSDtfsCounter, 4185 mSDsluCounter, 6103 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4187 SdHoareTripleChecker+Valid, 9470 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:47,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4187 Valid, 9470 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1308 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2021-11-21 01:42:47,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4119 states. [2021-11-21 01:42:48,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4119 to 4001. [2021-11-21 01:42:48,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4001 states, 2339 states have (on average 1.3313381787088499) internal successors, (3114), 2480 states have internal predecessors, (3114), 1349 states have call successors, (1349), 284 states have call predecessors, (1349), 283 states have return successors, (1347), 1297 states have call predecessors, (1347), 1347 states have call successors, (1347) [2021-11-21 01:42:48,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4001 states to 4001 states and 5810 transitions. [2021-11-21 01:42:48,147 INFO L78 Accepts]: Start accepts. Automaton has 4001 states and 5810 transitions. Word has length 66 [2021-11-21 01:42:48,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:48,148 INFO L470 AbstractCegarLoop]: Abstraction has 4001 states and 5810 transitions. [2021-11-21 01:42:48,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2021-11-21 01:42:48,149 INFO L276 IsEmpty]: Start isEmpty. Operand 4001 states and 5810 transitions. [2021-11-21 01:42:48,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-21 01:42:48,150 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:48,150 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:48,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 01:42:48,151 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:42:48,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:48,152 INFO L85 PathProgramCache]: Analyzing trace with hash 438215608, now seen corresponding path program 1 times [2021-11-21 01:42:48,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:48,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237908027] [2021-11-21 01:42:48,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:48,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:48,462 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:42:48,462 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:48,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237908027] [2021-11-21 01:42:48,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237908027] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:48,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:48,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:42:48,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465083300] [2021-11-21 01:42:48,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:48,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:42:48,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:48,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:42:48,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:42:48,465 INFO L87 Difference]: Start difference. First operand 4001 states and 5810 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-11-21 01:42:50,870 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:52,898 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:56,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:56,093 INFO L93 Difference]: Finished difference Result 4001 states and 5810 transitions. [2021-11-21 01:42:56,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:42:56,094 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 [2021-11-21 01:42:56,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:56,115 INFO L225 Difference]: With dead ends: 4001 [2021-11-21 01:42:56,115 INFO L226 Difference]: Without dead ends: 3999 [2021-11-21 01:42:56,118 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 [2021-11-21 01:42:56,119 INFO L933 BasicCegarLoop]: 3729 mSDtfsCounter, 4229 mSDsluCounter, 4239 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4231 SdHoareTripleChecker+Valid, 7454 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:56,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4231 Valid, 7454 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1030 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2021-11-21 01:42:56,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3999 states. [2021-11-21 01:42:56,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3999 to 3999. [2021-11-21 01:42:56,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3999 states, 2338 states have (on average 1.3306244653550043) internal successors, (3111), 2478 states have internal predecessors, (3111), 1349 states have call successors, (1349), 284 states have call predecessors, (1349), 283 states have return successors, (1347), 1297 states have call predecessors, (1347), 1347 states have call successors, (1347) [2021-11-21 01:42:56,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3999 states to 3999 states and 5807 transitions. [2021-11-21 01:42:56,387 INFO L78 Accepts]: Start accepts. Automaton has 3999 states and 5807 transitions. Word has length 71 [2021-11-21 01:42:56,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:56,387 INFO L470 AbstractCegarLoop]: Abstraction has 3999 states and 5807 transitions. [2021-11-21 01:42:56,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-11-21 01:42:56,388 INFO L276 IsEmpty]: Start isEmpty. Operand 3999 states and 5807 transitions. [2021-11-21 01:42:56,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-21 01:42:56,390 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:56,390 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:56,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 01:42:56,390 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:42:56,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:56,391 INFO L85 PathProgramCache]: Analyzing trace with hash 218545915, now seen corresponding path program 1 times [2021-11-21 01:42:56,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:56,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733453010] [2021-11-21 01:42:56,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:56,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:56,643 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:42:56,644 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:56,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733453010] [2021-11-21 01:42:56,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733453010] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:56,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:56,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:42:56,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810871634] [2021-11-21 01:42:56,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:56,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:42:56,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:56,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:42:56,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:42:56,646 INFO L87 Difference]: Start difference. First operand 3999 states and 5807 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 01:42:59,366 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 [] [2021-11-21 01:43:03,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:03,654 INFO L93 Difference]: Finished difference Result 4115 states and 5914 transitions. [2021-11-21 01:43:03,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:43:03,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 73 [2021-11-21 01:43:03,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:03,675 INFO L225 Difference]: With dead ends: 4115 [2021-11-21 01:43:03,675 INFO L226 Difference]: Without dead ends: 4113 [2021-11-21 01:43:03,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:43:03,679 INFO L933 BasicCegarLoop]: 4127 mSDtfsCounter, 4178 mSDsluCounter, 6099 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4180 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:03,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4180 Valid, 9464 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1309 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2021-11-21 01:43:03,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4113 states. [2021-11-21 01:43:03,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4113 to 4006. [2021-11-21 01:43:03,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4006 states, 2343 states have (on average 1.3294921041399914) internal successors, (3115), 2483 states have internal predecessors, (3115), 1350 states have call successors, (1350), 285 states have call predecessors, (1350), 284 states have return successors, (1348), 1298 states have call predecessors, (1348), 1348 states have call successors, (1348) [2021-11-21 01:43:04,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4006 states to 4006 states and 5813 transitions. [2021-11-21 01:43:04,015 INFO L78 Accepts]: Start accepts. Automaton has 4006 states and 5813 transitions. Word has length 73 [2021-11-21 01:43:04,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:04,016 INFO L470 AbstractCegarLoop]: Abstraction has 4006 states and 5813 transitions. [2021-11-21 01:43:04,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 01:43:04,017 INFO L276 IsEmpty]: Start isEmpty. Operand 4006 states and 5813 transitions. [2021-11-21 01:43:04,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-21 01:43:04,024 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:04,024 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:43:04,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 01:43:04,024 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:43:04,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:04,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1050658177, now seen corresponding path program 1 times [2021-11-21 01:43:04,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:04,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637260698] [2021-11-21 01:43:04,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:04,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:04,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:04,280 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:43:04,280 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:04,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637260698] [2021-11-21 01:43:04,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637260698] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:04,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:04,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:43:04,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084719881] [2021-11-21 01:43:04,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:04,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:43:04,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:04,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:43:04,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:43:04,282 INFO L87 Difference]: Start difference. First operand 4006 states and 5813 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, (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) [2021-11-21 01:43:07,101 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 [] [2021-11-21 01:43:11,618 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 [] [2021-11-21 01:43:12,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:12,075 INFO L93 Difference]: Finished difference Result 4113 states and 5911 transitions. [2021-11-21 01:43:12,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:43:12,076 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 78 [2021-11-21 01:43:12,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:12,093 INFO L225 Difference]: With dead ends: 4113 [2021-11-21 01:43:12,093 INFO L226 Difference]: Without dead ends: 4111 [2021-11-21 01:43:12,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:43:12,097 INFO L933 BasicCegarLoop]: 4127 mSDtfsCounter, 4177 mSDsluCounter, 6099 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4179 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:12,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4179 Valid, 9464 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1309 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2021-11-21 01:43:12,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4111 states. [2021-11-21 01:43:12,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4111 to 4011. [2021-11-21 01:43:12,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4011 states, 2346 states have (on average 1.3286445012787724) internal successors, (3117), 2486 states have internal predecessors, (3117), 1351 states have call successors, (1351), 286 states have call predecessors, (1351), 285 states have return successors, (1349), 1299 states have call predecessors, (1349), 1349 states have call successors, (1349) [2021-11-21 01:43:12,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4011 states to 4011 states and 5817 transitions. [2021-11-21 01:43:12,378 INFO L78 Accepts]: Start accepts. Automaton has 4011 states and 5817 transitions. Word has length 78 [2021-11-21 01:43:12,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:12,379 INFO L470 AbstractCegarLoop]: Abstraction has 4011 states and 5817 transitions. [2021-11-21 01:43:12,379 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, (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) [2021-11-21 01:43:12,379 INFO L276 IsEmpty]: Start isEmpty. Operand 4011 states and 5817 transitions. [2021-11-21 01:43:12,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-21 01:43:12,382 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:12,382 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:43:12,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-21 01:43:12,383 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:43:12,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:12,383 INFO L85 PathProgramCache]: Analyzing trace with hash 640344181, now seen corresponding path program 1 times [2021-11-21 01:43:12,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:12,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458443477] [2021-11-21 01:43:12,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:12,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:12,639 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:43:12,640 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:12,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458443477] [2021-11-21 01:43:12,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458443477] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:12,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:12,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:43:12,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770435871] [2021-11-21 01:43:12,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:12,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:43:12,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:12,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:43:12,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:43:12,642 INFO L87 Difference]: Start difference. First operand 4011 states and 5817 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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) [2021-11-21 01:43:15,348 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 [] [2021-11-21 01:43:19,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:19,683 INFO L93 Difference]: Finished difference Result 4111 states and 5908 transitions. [2021-11-21 01:43:19,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:43:19,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 83 [2021-11-21 01:43:19,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:19,700 INFO L225 Difference]: With dead ends: 4111 [2021-11-21 01:43:19,701 INFO L226 Difference]: Without dead ends: 4109 [2021-11-21 01:43:19,704 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 [2021-11-21 01:43:19,704 INFO L933 BasicCegarLoop]: 4127 mSDtfsCounter, 4174 mSDsluCounter, 6099 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4176 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:19,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4176 Valid, 9464 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1309 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2021-11-21 01:43:19,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4109 states. [2021-11-21 01:43:19,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4109 to 4016. [2021-11-21 01:43:19,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4016 states, 2349 states have (on average 1.3277990634312473) internal successors, (3119), 2489 states have internal predecessors, (3119), 1352 states have call successors, (1352), 287 states have call predecessors, (1352), 286 states have return successors, (1350), 1300 states have call predecessors, (1350), 1350 states have call successors, (1350) [2021-11-21 01:43:19,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4016 states to 4016 states and 5821 transitions. [2021-11-21 01:43:19,992 INFO L78 Accepts]: Start accepts. Automaton has 4016 states and 5821 transitions. Word has length 83 [2021-11-21 01:43:19,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:19,993 INFO L470 AbstractCegarLoop]: Abstraction has 4016 states and 5821 transitions. [2021-11-21 01:43:19,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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) [2021-11-21 01:43:19,994 INFO L276 IsEmpty]: Start isEmpty. Operand 4016 states and 5821 transitions. [2021-11-21 01:43:19,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-21 01:43:19,996 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:19,996 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 3, 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] [2021-11-21 01:43:19,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-21 01:43:19,996 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_net_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:43:19,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:19,997 INFO L85 PathProgramCache]: Analyzing trace with hash -736276880, now seen corresponding path program 1 times [2021-11-21 01:43:19,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:19,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406048091] [2021-11-21 01:43:19,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:19,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:20,319 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-11-21 01:43:20,319 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:20,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406048091] [2021-11-21 01:43:20,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406048091] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:20,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:20,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:43:20,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301372226] [2021-11-21 01:43:20,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:20,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:43:20,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:20,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:43:20,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:43:20,322 INFO L87 Difference]: Start difference. First operand 4016 states and 5821 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-21 01:43:22,709 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:25,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:25,098 INFO L93 Difference]: Finished difference Result 7989 states and 11571 transitions. [2021-11-21 01:43:25,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:43:25,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 92 [2021-11-21 01:43:25,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:25,115 INFO L225 Difference]: With dead ends: 7989 [2021-11-21 01:43:25,115 INFO L226 Difference]: Without dead ends: 4012 [2021-11-21 01:43:25,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:43:25,140 INFO L933 BasicCegarLoop]: 3725 mSDtfsCounter, 4231 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4231 SdHoareTripleChecker+Valid, 3725 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:25,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4231 Valid, 3725 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2021-11-21 01:43:25,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4012 states. [2021-11-21 01:43:25,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4012 to 4012. [2021-11-21 01:43:25,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4012 states, 2346 states have (on average 1.3273657289002558) internal successors, (3114), 2485 states have internal predecessors, (3114), 1352 states have call successors, (1352), 287 states have call predecessors, (1352), 286 states have return successors, (1350), 1300 states have call predecessors, (1350), 1350 states have call successors, (1350) [2021-11-21 01:43:25,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4012 states to 4012 states and 5816 transitions. [2021-11-21 01:43:25,547 INFO L78 Accepts]: Start accepts. Automaton has 4012 states and 5816 transitions. Word has length 92 [2021-11-21 01:43:25,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:25,549 INFO L470 AbstractCegarLoop]: Abstraction has 4012 states and 5816 transitions. [2021-11-21 01:43:25,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-21 01:43:25,550 INFO L276 IsEmpty]: Start isEmpty. Operand 4012 states and 5816 transitions. [2021-11-21 01:43:25,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-21 01:43:25,552 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:25,552 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:43:25,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-21 01:43:25,553 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:43:25,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:25,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1205443167, now seen corresponding path program 1 times [2021-11-21 01:43:25,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:25,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680913085] [2021-11-21 01:43:25,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:25,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:25,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:25,820 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:43:25,820 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:25,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680913085] [2021-11-21 01:43:25,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680913085] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:25,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:25,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:43:25,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067326180] [2021-11-21 01:43:25,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:25,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:43:25,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:25,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:43:25,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:43:25,823 INFO L87 Difference]: Start difference. First operand 4012 states and 5816 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2021-11-21 01:43:28,759 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 [] [2021-11-21 01:43:33,223 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:33,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:33,715 INFO L93 Difference]: Finished difference Result 4105 states and 5900 transitions. [2021-11-21 01:43:33,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:43:33,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 [2021-11-21 01:43:33,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:33,733 INFO L225 Difference]: With dead ends: 4105 [2021-11-21 01:43:33,733 INFO L226 Difference]: Without dead ends: 4103 [2021-11-21 01:43:33,736 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 [2021-11-21 01:43:33,737 INFO L933 BasicCegarLoop]: 4122 mSDtfsCounter, 4166 mSDsluCounter, 6094 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4168 SdHoareTripleChecker+Valid, 9454 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:33,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4168 Valid, 9454 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1309 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2021-11-21 01:43:33,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4103 states. [2021-11-21 01:43:34,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4103 to 4017. [2021-11-21 01:43:34,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4017 states, 2349 states have (on average 1.3265219242230737) internal successors, (3116), 2488 states have internal predecessors, (3116), 1353 states have call successors, (1353), 288 states have call predecessors, (1353), 287 states have return successors, (1351), 1301 states have call predecessors, (1351), 1351 states have call successors, (1351) [2021-11-21 01:43:34,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4017 states to 4017 states and 5820 transitions. [2021-11-21 01:43:34,048 INFO L78 Accepts]: Start accepts. Automaton has 4017 states and 5820 transitions. Word has length 88 [2021-11-21 01:43:34,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:34,049 INFO L470 AbstractCegarLoop]: Abstraction has 4017 states and 5820 transitions. [2021-11-21 01:43:34,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2021-11-21 01:43:34,050 INFO L276 IsEmpty]: Start isEmpty. Operand 4017 states and 5820 transitions. [2021-11-21 01:43:34,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-21 01:43:34,051 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:34,052 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 3, 3, 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] [2021-11-21 01:43:34,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-21 01:43:34,052 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_usb_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:43:34,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:34,052 INFO L85 PathProgramCache]: Analyzing trace with hash -595429209, now seen corresponding path program 1 times [2021-11-21 01:43:34,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:34,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900262750] [2021-11-21 01:43:34,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:34,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:34,351 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-11-21 01:43:34,351 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:34,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900262750] [2021-11-21 01:43:34,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900262750] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:43:34,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326891068] [2021-11-21 01:43:34,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:34,352 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:43:34,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:43:34,355 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:43:34,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:43:36,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:36,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 4553 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-21 01:43:36,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:43:36,371 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-11-21 01:43:36,372 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:43:36,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326891068] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:36,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:43:36,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2021-11-21 01:43:36,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508511670] [2021-11-21 01:43:36,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:36,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:43:36,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:36,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:43:36,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-21 01:43:36,377 INFO L87 Difference]: Start difference. First operand 4017 states and 5820 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-21 01:43:38,038 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:40,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:40,207 INFO L93 Difference]: Finished difference Result 7991 states and 11569 transitions. [2021-11-21 01:43:40,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:43:40,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 100 [2021-11-21 01:43:40,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:40,225 INFO L225 Difference]: With dead ends: 7991 [2021-11-21 01:43:40,225 INFO L226 Difference]: Without dead ends: 4013 [2021-11-21 01:43:40,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-21 01:43:40,254 INFO L933 BasicCegarLoop]: 3720 mSDtfsCounter, 4217 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4217 SdHoareTripleChecker+Valid, 3720 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:40,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4217 Valid, 3720 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-11-21 01:43:40,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4013 states. [2021-11-21 01:43:40,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4013 to 4013. [2021-11-21 01:43:40,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4013 states, 2346 states have (on average 1.326086956521739) internal successors, (3111), 2484 states have internal predecessors, (3111), 1353 states have call successors, (1353), 288 states have call predecessors, (1353), 287 states have return successors, (1351), 1301 states have call predecessors, (1351), 1351 states have call successors, (1351) [2021-11-21 01:43:40,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4013 states to 4013 states and 5815 transitions. [2021-11-21 01:43:40,589 INFO L78 Accepts]: Start accepts. Automaton has 4013 states and 5815 transitions. Word has length 100 [2021-11-21 01:43:40,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:40,589 INFO L470 AbstractCegarLoop]: Abstraction has 4013 states and 5815 transitions. [2021-11-21 01:43:40,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-21 01:43:40,590 INFO L276 IsEmpty]: Start isEmpty. Operand 4013 states and 5815 transitions. [2021-11-21 01:43:40,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-21 01:43:40,592 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:40,592 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:43:40,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:43:40,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:43:40,808 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:43:40,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:40,809 INFO L85 PathProgramCache]: Analyzing trace with hash 130270414, now seen corresponding path program 1 times [2021-11-21 01:43:40,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:40,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137280677] [2021-11-21 01:43:40,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:40,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:41,091 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:43:41,092 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:41,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137280677] [2021-11-21 01:43:41,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137280677] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:41,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:41,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:43:41,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423058657] [2021-11-21 01:43:41,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:41,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:43:41,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:41,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:43:41,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:43:41,097 INFO L87 Difference]: Start difference. First operand 4013 states and 5815 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2021-11-21 01:43:44,094 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:49,181 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:49,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:49,746 INFO L93 Difference]: Finished difference Result 4099 states and 5892 transitions. [2021-11-21 01:43:49,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:43:49,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 [2021-11-21 01:43:49,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:49,756 INFO L225 Difference]: With dead ends: 4099 [2021-11-21 01:43:49,756 INFO L226 Difference]: Without dead ends: 4097 [2021-11-21 01:43:49,758 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 [2021-11-21 01:43:49,759 INFO L933 BasicCegarLoop]: 4117 mSDtfsCounter, 4158 mSDsluCounter, 6089 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4160 SdHoareTripleChecker+Valid, 9444 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:49,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4160 Valid, 9444 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1309 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2021-11-21 01:43:49,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4097 states. [2021-11-21 01:43:50,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4097 to 4018. [2021-11-21 01:43:50,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4018 states, 2349 states have (on average 1.3252447850149) internal successors, (3113), 2487 states have internal predecessors, (3113), 1354 states have call successors, (1354), 289 states have call predecessors, (1354), 288 states have return successors, (1352), 1302 states have call predecessors, (1352), 1352 states have call successors, (1352) [2021-11-21 01:43:50,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4018 states to 4018 states and 5819 transitions. [2021-11-21 01:43:50,055 INFO L78 Accepts]: Start accepts. Automaton has 4018 states and 5819 transitions. Word has length 93 [2021-11-21 01:43:50,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:50,055 INFO L470 AbstractCegarLoop]: Abstraction has 4018 states and 5819 transitions. [2021-11-21 01:43:50,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2021-11-21 01:43:50,056 INFO L276 IsEmpty]: Start isEmpty. Operand 4018 states and 5819 transitions. [2021-11-21 01:43:50,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-21 01:43:50,058 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:50,058 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:43:50,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-21 01:43:50,059 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:43:50,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:50,059 INFO L85 PathProgramCache]: Analyzing trace with hash -2097330694, now seen corresponding path program 1 times [2021-11-21 01:43:50,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:50,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217034906] [2021-11-21 01:43:50,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:50,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:50,306 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:43:50,307 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:50,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217034906] [2021-11-21 01:43:50,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217034906] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:50,307 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:50,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:43:50,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204913961] [2021-11-21 01:43:50,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:50,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:43:50,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:50,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:43:50,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:43:50,309 INFO L87 Difference]: Start difference. First operand 4018 states and 5819 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2021-11-21 01:43:53,333 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:56,956 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:57,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:57,923 INFO L93 Difference]: Finished difference Result 4097 states and 5889 transitions. [2021-11-21 01:43:57,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:43:57,924 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 [2021-11-21 01:43:57,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:57,934 INFO L225 Difference]: With dead ends: 4097 [2021-11-21 01:43:57,934 INFO L226 Difference]: Without dead ends: 4095 [2021-11-21 01:43:57,937 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 [2021-11-21 01:43:57,938 INFO L933 BasicCegarLoop]: 4117 mSDtfsCounter, 4155 mSDsluCounter, 6089 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4157 SdHoareTripleChecker+Valid, 9444 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:57,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4157 Valid, 9444 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1309 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2021-11-21 01:43:57,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4095 states. [2021-11-21 01:43:58,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4095 to 4023. [2021-11-21 01:43:58,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4023 states, 2352 states have (on average 1.3244047619047619) internal successors, (3115), 2490 states have internal predecessors, (3115), 1355 states have call successors, (1355), 290 states have call predecessors, (1355), 289 states have return successors, (1353), 1303 states have call predecessors, (1353), 1353 states have call successors, (1353) [2021-11-21 01:43:58,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4023 states to 4023 states and 5823 transitions. [2021-11-21 01:43:58,341 INFO L78 Accepts]: Start accepts. Automaton has 4023 states and 5823 transitions. Word has length 98 [2021-11-21 01:43:58,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:58,342 INFO L470 AbstractCegarLoop]: Abstraction has 4023 states and 5823 transitions. [2021-11-21 01:43:58,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2021-11-21 01:43:58,342 INFO L276 IsEmpty]: Start isEmpty. Operand 4023 states and 5823 transitions. [2021-11-21 01:43:58,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-21 01:43:58,344 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:58,345 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 3, 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] [2021-11-21 01:43:58,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-21 01:43:58,345 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:43:58,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:58,346 INFO L85 PathProgramCache]: Analyzing trace with hash -137623391, now seen corresponding path program 1 times [2021-11-21 01:43:58,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:58,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823824436] [2021-11-21 01:43:58,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:58,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:58,710 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-11-21 01:43:58,711 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:58,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823824436] [2021-11-21 01:43:58,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823824436] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:58,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:58,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-21 01:43:58,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101580262] [2021-11-21 01:43:58,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:58,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 01:43:58,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:58,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 01:43:58,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:43:58,714 INFO L87 Difference]: Start difference. First operand 4023 states and 5823 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-21 01:44:03,553 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:09,676 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:44:14,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:44:14,535 INFO L93 Difference]: Finished difference Result 4059 states and 5847 transitions. [2021-11-21 01:44:14,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 01:44:14,536 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 108 [2021-11-21 01:44:14,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:44:14,552 INFO L225 Difference]: With dead ends: 4059 [2021-11-21 01:44:14,552 INFO L226 Difference]: Without dead ends: 4057 [2021-11-21 01:44:14,556 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 [2021-11-21 01:44:14,556 INFO L933 BasicCegarLoop]: 4121 mSDtfsCounter, 4095 mSDsluCounter, 13437 mSDsCounter, 0 mSdLazyCounter, 4355 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4098 SdHoareTripleChecker+Valid, 15722 SdHoareTripleChecker+Invalid, 4359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4355 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:44:14,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4098 Valid, 15722 Invalid, 4359 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 4355 Invalid, 2 Unknown, 0 Unchecked, 15.3s Time] [2021-11-21 01:44:14,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4057 states. [2021-11-21 01:44:14,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4057 to 4023. [2021-11-21 01:44:14,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4023 states, 2352 states have (on average 1.3239795918367347) internal successors, (3114), 2490 states have internal predecessors, (3114), 1355 states have call successors, (1355), 290 states have call predecessors, (1355), 289 states have return successors, (1353), 1303 states have call predecessors, (1353), 1353 states have call successors, (1353) [2021-11-21 01:44:14,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4023 states to 4023 states and 5822 transitions. [2021-11-21 01:44:14,959 INFO L78 Accepts]: Start accepts. Automaton has 4023 states and 5822 transitions. Word has length 108 [2021-11-21 01:44:14,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:44:14,961 INFO L470 AbstractCegarLoop]: Abstraction has 4023 states and 5822 transitions. [2021-11-21 01:44:14,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-21 01:44:14,961 INFO L276 IsEmpty]: Start isEmpty. Operand 4023 states and 5822 transitions. [2021-11-21 01:44:14,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-21 01:44:14,964 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:44:14,964 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:44:14,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-21 01:44:14,966 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:44:14,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:44:14,967 INFO L85 PathProgramCache]: Analyzing trace with hash 897527092, now seen corresponding path program 1 times [2021-11-21 01:44:14,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:44:14,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934846474] [2021-11-21 01:44:14,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:44:14,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:44:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:44:15,225 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:44:15,226 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:44:15,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934846474] [2021-11-21 01:44:15,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934846474] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:44:15,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:44:15,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:44:15,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124805466] [2021-11-21 01:44:15,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:44:15,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:44:15,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:44:15,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:44:15,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:44:15,230 INFO L87 Difference]: Start difference. First operand 4023 states and 5822 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2021-11-21 01:44:18,197 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:22,384 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:23,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:44:23,043 INFO L93 Difference]: Finished difference Result 4095 states and 5885 transitions. [2021-11-21 01:44:23,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:44:23,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 [2021-11-21 01:44:23,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:44:23,055 INFO L225 Difference]: With dead ends: 4095 [2021-11-21 01:44:23,056 INFO L226 Difference]: Without dead ends: 4093 [2021-11-21 01:44:23,058 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 [2021-11-21 01:44:23,059 INFO L933 BasicCegarLoop]: 4119 mSDtfsCounter, 4152 mSDsluCounter, 6091 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4154 SdHoareTripleChecker+Valid, 9448 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:44:23,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4154 Valid, 9448 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1309 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2021-11-21 01:44:23,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4093 states. [2021-11-21 01:44:23,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4093 to 4028. [2021-11-21 01:44:23,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4028 states, 2355 states have (on average 1.3231422505307855) internal successors, (3116), 2493 states have internal predecessors, (3116), 1356 states have call successors, (1356), 291 states have call predecessors, (1356), 290 states have return successors, (1354), 1304 states have call predecessors, (1354), 1354 states have call successors, (1354) [2021-11-21 01:44:23,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4028 states to 4028 states and 5826 transitions. [2021-11-21 01:44:23,515 INFO L78 Accepts]: Start accepts. Automaton has 4028 states and 5826 transitions. Word has length 103 [2021-11-21 01:44:23,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:44:23,516 INFO L470 AbstractCegarLoop]: Abstraction has 4028 states and 5826 transitions. [2021-11-21 01:44:23,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2021-11-21 01:44:23,516 INFO L276 IsEmpty]: Start isEmpty. Operand 4028 states and 5826 transitions. [2021-11-21 01:44:23,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-21 01:44:23,518 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:44:23,519 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 3, 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] [2021-11-21 01:44:23,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-21 01:44:23,519 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:44:23,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:44:23,520 INFO L85 PathProgramCache]: Analyzing trace with hash 2070748623, now seen corresponding path program 1 times [2021-11-21 01:44:23,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:44:23,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866913532] [2021-11-21 01:44:23,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:44:23,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:44:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:44:23,807 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-11-21 01:44:23,807 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:44:23,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866913532] [2021-11-21 01:44:23,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866913532] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:44:23,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:44:23,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:44:23,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645616602] [2021-11-21 01:44:23,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:44:23,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:44:23,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:44:23,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:44:23,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:44:23,810 INFO L87 Difference]: Start difference. First operand 4028 states and 5826 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-21 01:44:26,575 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 [] [2021-11-21 01:44:29,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:44:29,526 INFO L93 Difference]: Finished difference Result 8076 states and 11672 transitions. [2021-11-21 01:44:29,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:44:29,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 111 [2021-11-21 01:44:29,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:44:29,538 INFO L225 Difference]: With dead ends: 8076 [2021-11-21 01:44:29,538 INFO L226 Difference]: Without dead ends: 4087 [2021-11-21 01:44:29,560 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 [2021-11-21 01:44:29,561 INFO L933 BasicCegarLoop]: 4119 mSDtfsCounter, 4126 mSDsluCounter, 1430 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4126 SdHoareTripleChecker+Valid, 5328 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:44:29,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4126 Valid, 5328 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 768 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2021-11-21 01:44:29,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4087 states. [2021-11-21 01:44:29,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4087 to 4024. [2021-11-21 01:44:29,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4024 states, 2351 states have (on average 1.3219906422798808) internal successors, (3108), 2489 states have internal predecessors, (3108), 1356 states have call successors, (1356), 291 states have call predecessors, (1356), 290 states have return successors, (1354), 1304 states have call predecessors, (1354), 1354 states have call successors, (1354) [2021-11-21 01:44:29,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4024 states to 4024 states and 5818 transitions. [2021-11-21 01:44:29,837 INFO L78 Accepts]: Start accepts. Automaton has 4024 states and 5818 transitions. Word has length 111 [2021-11-21 01:44:29,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:44:29,837 INFO L470 AbstractCegarLoop]: Abstraction has 4024 states and 5818 transitions. [2021-11-21 01:44:29,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-21 01:44:29,837 INFO L276 IsEmpty]: Start isEmpty. Operand 4024 states and 5818 transitions. [2021-11-21 01:44:29,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-21 01:44:29,840 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:44:29,840 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:44:29,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-21 01:44:29,840 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:44:29,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:44:29,841 INFO L85 PathProgramCache]: Analyzing trace with hash 713302505, now seen corresponding path program 1 times [2021-11-21 01:44:29,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:44:29,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685574731] [2021-11-21 01:44:29,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:44:29,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:44:30,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:44:30,189 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:44:30,189 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:44:30,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685574731] [2021-11-21 01:44:30,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685574731] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:44:30,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:44:30,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:44:30,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670003815] [2021-11-21 01:44:30,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:44:30,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:44:30,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:44:30,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:44:30,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:44:30,193 INFO L87 Difference]: Start difference. First operand 4024 states and 5818 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2021-11-21 01:44:33,155 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 [] [2021-11-21 01:44:37,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:44:37,245 INFO L93 Difference]: Finished difference Result 4087 states and 5873 transitions. [2021-11-21 01:44:37,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:44:37,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 [2021-11-21 01:44:37,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:44:37,269 INFO L225 Difference]: With dead ends: 4087 [2021-11-21 01:44:37,269 INFO L226 Difference]: Without dead ends: 4085 [2021-11-21 01:44:37,272 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 [2021-11-21 01:44:37,272 INFO L933 BasicCegarLoop]: 4119 mSDtfsCounter, 4144 mSDsluCounter, 6091 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4146 SdHoareTripleChecker+Valid, 9448 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:44:37,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4146 Valid, 9448 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1309 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2021-11-21 01:44:37,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4085 states. [2021-11-21 01:44:37,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4085 to 4029. [2021-11-21 01:44:37,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4029 states, 2354 states have (on average 1.3211554800339846) internal successors, (3110), 2492 states have internal predecessors, (3110), 1357 states have call successors, (1357), 292 states have call predecessors, (1357), 291 states have return successors, (1355), 1305 states have call predecessors, (1355), 1355 states have call successors, (1355) [2021-11-21 01:44:37,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4029 states to 4029 states and 5822 transitions. [2021-11-21 01:44:37,559 INFO L78 Accepts]: Start accepts. Automaton has 4029 states and 5822 transitions. Word has length 108 [2021-11-21 01:44:37,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:44:37,560 INFO L470 AbstractCegarLoop]: Abstraction has 4029 states and 5822 transitions. [2021-11-21 01:44:37,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2021-11-21 01:44:37,560 INFO L276 IsEmpty]: Start isEmpty. Operand 4029 states and 5822 transitions. [2021-11-21 01:44:37,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-21 01:44:37,562 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:44:37,562 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:44:37,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-21 01:44:37,562 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:44:37,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:44:37,563 INFO L85 PathProgramCache]: Analyzing trace with hash -478691606, now seen corresponding path program 1 times [2021-11-21 01:44:37,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:44:37,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104473621] [2021-11-21 01:44:37,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:44:37,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:44:37,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:44:37,815 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:44:37,815 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:44:37,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104473621] [2021-11-21 01:44:37,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104473621] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:44:37,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:44:37,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:44:37,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264906928] [2021-11-21 01:44:37,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:44:37,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:44:37,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:44:37,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:44:37,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:44:37,819 INFO L87 Difference]: Start difference. First operand 4029 states and 5822 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2021-11-21 01:44:40,829 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:45,006 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:45,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:44:45,567 INFO L93 Difference]: Finished difference Result 4085 states and 5870 transitions. [2021-11-21 01:44:45,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:44:45,568 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 [2021-11-21 01:44:45,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:44:45,578 INFO L225 Difference]: With dead ends: 4085 [2021-11-21 01:44:45,578 INFO L226 Difference]: Without dead ends: 4083 [2021-11-21 01:44:45,580 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 [2021-11-21 01:44:45,581 INFO L933 BasicCegarLoop]: 4119 mSDtfsCounter, 4141 mSDsluCounter, 6091 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4143 SdHoareTripleChecker+Valid, 9448 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:44:45,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4143 Valid, 9448 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1309 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2021-11-21 01:44:45,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4083 states. [2021-11-21 01:44:45,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4083 to 4034. [2021-11-21 01:44:45,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4034 states, 2357 states have (on average 1.3203224437844718) internal successors, (3112), 2495 states have internal predecessors, (3112), 1358 states have call successors, (1358), 293 states have call predecessors, (1358), 292 states have return successors, (1356), 1306 states have call predecessors, (1356), 1356 states have call successors, (1356) [2021-11-21 01:44:45,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4034 states to 4034 states and 5826 transitions. [2021-11-21 01:44:45,842 INFO L78 Accepts]: Start accepts. Automaton has 4034 states and 5826 transitions. Word has length 113 [2021-11-21 01:44:45,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:44:45,842 INFO L470 AbstractCegarLoop]: Abstraction has 4034 states and 5826 transitions. [2021-11-21 01:44:45,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2021-11-21 01:44:45,843 INFO L276 IsEmpty]: Start isEmpty. Operand 4034 states and 5826 transitions. [2021-11-21 01:44:45,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-21 01:44:45,845 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:44:45,845 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:44:45,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-21 01:44:45,845 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:44:45,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:44:45,846 INFO L85 PathProgramCache]: Analyzing trace with hash 273660551, now seen corresponding path program 1 times [2021-11-21 01:44:45,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:44:45,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298828457] [2021-11-21 01:44:45,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:44:45,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:44:45,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:44:46,103 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:44:46,103 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:44:46,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298828457] [2021-11-21 01:44:46,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298828457] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:44:46,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:44:46,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:44:46,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866469985] [2021-11-21 01:44:46,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:44:46,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:44:46,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:44:46,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:44:46,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:44:46,107 INFO L87 Difference]: Start difference. First operand 4034 states and 5826 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2021-11-21 01:44:49,086 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:53,444 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:53,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:44:53,973 INFO L93 Difference]: Finished difference Result 4083 states and 5867 transitions. [2021-11-21 01:44:53,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:44:53,973 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 [2021-11-21 01:44:53,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:44:53,984 INFO L225 Difference]: With dead ends: 4083 [2021-11-21 01:44:53,984 INFO L226 Difference]: Without dead ends: 4081 [2021-11-21 01:44:53,986 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 [2021-11-21 01:44:53,986 INFO L933 BasicCegarLoop]: 4119 mSDtfsCounter, 4138 mSDsluCounter, 6091 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4140 SdHoareTripleChecker+Valid, 9448 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:44:53,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4140 Valid, 9448 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1309 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2021-11-21 01:44:53,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4081 states. [2021-11-21 01:44:54,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4081 to 4039. [2021-11-21 01:44:54,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4039 states, 2360 states have (on average 1.3194915254237287) internal successors, (3114), 2498 states have internal predecessors, (3114), 1359 states have call successors, (1359), 294 states have call predecessors, (1359), 293 states have return successors, (1357), 1307 states have call predecessors, (1357), 1357 states have call successors, (1357) [2021-11-21 01:44:54,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4039 states to 4039 states and 5830 transitions. [2021-11-21 01:44:54,259 INFO L78 Accepts]: Start accepts. Automaton has 4039 states and 5830 transitions. Word has length 118 [2021-11-21 01:44:54,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:44:54,260 INFO L470 AbstractCegarLoop]: Abstraction has 4039 states and 5830 transitions. [2021-11-21 01:44:54,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2021-11-21 01:44:54,260 INFO L276 IsEmpty]: Start isEmpty. Operand 4039 states and 5830 transitions. [2021-11-21 01:44:54,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-21 01:44:54,263 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:44:54,263 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:44:54,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-21 01:44:54,264 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:44:54,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:44:54,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1423733199, now seen corresponding path program 1 times [2021-11-21 01:44:54,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:44:54,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394124903] [2021-11-21 01:44:54,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:44:54,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:44:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:44:54,537 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:44:54,537 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:44:54,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394124903] [2021-11-21 01:44:54,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394124903] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:44:54,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:44:54,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:44:54,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230254944] [2021-11-21 01:44:54,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:44:54,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:44:54,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:44:54,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:44:54,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:44:54,539 INFO L87 Difference]: Start difference. First operand 4039 states and 5830 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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) [2021-11-21 01:45:01,007 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:02,344 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:02,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:45:02,730 INFO L93 Difference]: Finished difference Result 4039 states and 5830 transitions. [2021-11-21 01:45:02,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:45:02,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 [2021-11-21 01:45:02,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:45:02,741 INFO L225 Difference]: With dead ends: 4039 [2021-11-21 01:45:02,741 INFO L226 Difference]: Without dead ends: 4037 [2021-11-21 01:45:02,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:45:02,743 INFO L933 BasicCegarLoop]: 3717 mSDtfsCounter, 4203 mSDsluCounter, 4231 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4205 SdHoareTripleChecker+Valid, 7434 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:45:02,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4205 Valid, 7434 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2021-11-21 01:45:02,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4037 states. [2021-11-21 01:45:02,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4037 to 4037. [2021-11-21 01:45:02,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4037 states, 2359 states have (on average 1.3187791437049596) internal successors, (3111), 2496 states have internal predecessors, (3111), 1359 states have call successors, (1359), 294 states have call predecessors, (1359), 293 states have return successors, (1357), 1307 states have call predecessors, (1357), 1357 states have call successors, (1357) [2021-11-21 01:45:03,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4037 states to 4037 states and 5827 transitions. [2021-11-21 01:45:03,018 INFO L78 Accepts]: Start accepts. Automaton has 4037 states and 5827 transitions. Word has length 123 [2021-11-21 01:45:03,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:45:03,018 INFO L470 AbstractCegarLoop]: Abstraction has 4037 states and 5827 transitions. [2021-11-21 01:45:03,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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) [2021-11-21 01:45:03,018 INFO L276 IsEmpty]: Start isEmpty. Operand 4037 states and 5827 transitions. [2021-11-21 01:45:03,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-21 01:45:03,021 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:45:03,021 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 3, 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] [2021-11-21 01:45:03,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-21 01:45:03,021 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:45:03,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:45:03,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1614701900, now seen corresponding path program 1 times [2021-11-21 01:45:03,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:45:03,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831037622] [2021-11-21 01:45:03,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:03,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:45:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:45:03,358 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-11-21 01:45:03,359 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:45:03,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831037622] [2021-11-21 01:45:03,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831037622] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:45:03,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:45:03,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:45:03,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200901368] [2021-11-21 01:45:03,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:45:03,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:45:03,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:45:03,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:45:03,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:45:03,361 INFO L87 Difference]: Start difference. First operand 4037 states and 5827 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-21 01:45:06,137 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:08,183 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:09,907 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:14,312 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:45:16,370 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 [] [2021-11-21 01:45:18,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:45:18,144 INFO L93 Difference]: Finished difference Result 4498 states and 6358 transitions. [2021-11-21 01:45:18,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:45:18,145 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 133 [2021-11-21 01:45:18,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:45:18,161 INFO L225 Difference]: With dead ends: 4498 [2021-11-21 01:45:18,161 INFO L226 Difference]: Without dead ends: 4496 [2021-11-21 01:45:18,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:45:18,165 INFO L933 BasicCegarLoop]: 3842 mSDtfsCounter, 4072 mSDsluCounter, 9338 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4075 SdHoareTripleChecker+Valid, 12051 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1658 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:45:18,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4075 Valid, 12051 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1658 Invalid, 2 Unknown, 0 Unchecked, 14.3s Time] [2021-11-21 01:45:18,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4496 states. [2021-11-21 01:45:18,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4496 to 4338. [2021-11-21 01:45:18,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4338 states, 2524 states have (on average 1.3149762282091917) internal successors, (3319), 2682 states have internal predecessors, (3319), 1440 states have call successors, (1440), 350 states have call predecessors, (1440), 348 states have return successors, (1441), 1370 states have call predecessors, (1441), 1438 states have call successors, (1441) [2021-11-21 01:45:18,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4338 states to 4338 states and 6200 transitions. [2021-11-21 01:45:18,476 INFO L78 Accepts]: Start accepts. Automaton has 4338 states and 6200 transitions. Word has length 133 [2021-11-21 01:45:18,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:45:18,477 INFO L470 AbstractCegarLoop]: Abstraction has 4338 states and 6200 transitions. [2021-11-21 01:45:18,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-21 01:45:18,477 INFO L276 IsEmpty]: Start isEmpty. Operand 4338 states and 6200 transitions. [2021-11-21 01:45:18,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-21 01:45:18,479 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:45:18,479 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:45:18,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-21 01:45:18,479 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:45:18,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:45:18,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1315043651, now seen corresponding path program 1 times [2021-11-21 01:45:18,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:45:18,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571629057] [2021-11-21 01:45:18,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:18,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:45:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:45:18,733 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:45:18,733 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:45:18,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571629057] [2021-11-21 01:45:18,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571629057] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:45:18,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:45:18,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:45:18,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820100117] [2021-11-21 01:45:18,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:45:18,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:45:18,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:45:18,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:45:18,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:45:18,736 INFO L87 Difference]: Start difference. First operand 4338 states and 6200 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2021-11-21 01:45:24,333 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:25,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:45:25,142 INFO L93 Difference]: Finished difference Result 4338 states and 6200 transitions. [2021-11-21 01:45:25,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:45:25,143 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 [2021-11-21 01:45:25,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:45:25,158 INFO L225 Difference]: With dead ends: 4338 [2021-11-21 01:45:25,158 INFO L226 Difference]: Without dead ends: 4336 [2021-11-21 01:45:25,161 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 [2021-11-21 01:45:25,161 INFO L933 BasicCegarLoop]: 3715 mSDtfsCounter, 4200 mSDsluCounter, 4229 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4202 SdHoareTripleChecker+Valid, 7430 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:45:25,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4202 Valid, 7430 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2021-11-21 01:45:25,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4336 states. [2021-11-21 01:45:25,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4336 to 4336. [2021-11-21 01:45:25,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4336 states, 2523 states have (on average 1.3143083630598493) internal successors, (3316), 2680 states have internal predecessors, (3316), 1440 states have call successors, (1440), 350 states have call predecessors, (1440), 348 states have return successors, (1441), 1370 states have call predecessors, (1441), 1438 states have call successors, (1441) [2021-11-21 01:45:25,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4336 states to 4336 states and 6197 transitions. [2021-11-21 01:45:25,646 INFO L78 Accepts]: Start accepts. Automaton has 4336 states and 6197 transitions. Word has length 128 [2021-11-21 01:45:25,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:45:25,647 INFO L470 AbstractCegarLoop]: Abstraction has 4336 states and 6197 transitions. [2021-11-21 01:45:25,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2021-11-21 01:45:25,647 INFO L276 IsEmpty]: Start isEmpty. Operand 4336 states and 6197 transitions. [2021-11-21 01:45:25,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-21 01:45:25,650 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:45:25,651 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:45:25,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-21 01:45:25,651 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:45:25,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:45:25,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1102448845, now seen corresponding path program 1 times [2021-11-21 01:45:25,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:45:25,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785147264] [2021-11-21 01:45:25,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:25,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:45:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:45:25,891 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:45:25,892 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:45:25,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785147264] [2021-11-21 01:45:25,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785147264] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:45:25,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:45:25,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:45:25,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619779330] [2021-11-21 01:45:25,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:45:25,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:45:25,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:45:25,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:45:25,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:45:25,895 INFO L87 Difference]: Start difference. First operand 4336 states and 6197 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2021-11-21 01:45:31,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:45:31,507 INFO L93 Difference]: Finished difference Result 4336 states and 6197 transitions. [2021-11-21 01:45:31,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:45:31,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 [2021-11-21 01:45:31,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:45:31,519 INFO L225 Difference]: With dead ends: 4336 [2021-11-21 01:45:31,519 INFO L226 Difference]: Without dead ends: 4094 [2021-11-21 01:45:31,523 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 [2021-11-21 01:45:31,523 INFO L933 BasicCegarLoop]: 3714 mSDtfsCounter, 4197 mSDsluCounter, 4229 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4197 SdHoareTripleChecker+Valid, 7428 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:45:31,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4197 Valid, 7428 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-11-21 01:45:31,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4094 states. [2021-11-21 01:45:31,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4094 to 4094. [2021-11-21 01:45:31,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4094 states, 2387 states have (on average 1.3276078759949728) internal successors, (3169), 2538 states have internal predecessors, (3169), 1373 states have call successors, (1373), 313 states have call predecessors, (1373), 310 states have return successors, (1374), 1306 states have call predecessors, (1374), 1371 states have call successors, (1374) [2021-11-21 01:45:31,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4094 states to 4094 states and 5916 transitions. [2021-11-21 01:45:31,955 INFO L78 Accepts]: Start accepts. Automaton has 4094 states and 5916 transitions. Word has length 133 [2021-11-21 01:45:31,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:45:31,956 INFO L470 AbstractCegarLoop]: Abstraction has 4094 states and 5916 transitions. [2021-11-21 01:45:31,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2021-11-21 01:45:31,956 INFO L276 IsEmpty]: Start isEmpty. Operand 4094 states and 5916 transitions. [2021-11-21 01:45:31,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-21 01:45:31,959 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:45:31,959 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 3, 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] [2021-11-21 01:45:31,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-21 01:45:31,960 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:45:31,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:45:31,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1218491913, now seen corresponding path program 1 times [2021-11-21 01:45:31,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:45:31,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708557521] [2021-11-21 01:45:31,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:31,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:45:32,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:45:32,630 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-11-21 01:45:32,630 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:45:32,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708557521] [2021-11-21 01:45:32,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708557521] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:45:32,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:45:32,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-21 01:45:32,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125231821] [2021-11-21 01:45:32,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:45:32,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-21 01:45:32,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:45:32,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-21 01:45:32,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2021-11-21 01:45:32,633 INFO L87 Difference]: Start difference. First operand 4094 states and 5916 transitions. Second operand has 17 states, 11 states have (on average 6.363636363636363) internal successors, (70), 12 states have internal predecessors, (70), 6 states have call successors, (31), 3 states have call predecessors, (31), 5 states have return successors, (26), 7 states have call predecessors, (26), 5 states have call successors, (26) [2021-11-21 01:45:48,741 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:46:11,684 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:46:16,080 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:46:33,221 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:46:41,532 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:47:05,593 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:47:12,342 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:47:17,194 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:47:19,211 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:47:20,252 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:47:22,035 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:47:23,399 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:47:30,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:47:30,181 INFO L93 Difference]: Finished difference Result 8384 states and 12195 transitions. [2021-11-21 01:47:30,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-21 01:47:30,182 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 11 states have (on average 6.363636363636363) internal successors, (70), 12 states have internal predecessors, (70), 6 states have call successors, (31), 3 states have call predecessors, (31), 5 states have return successors, (26), 7 states have call predecessors, (26), 5 states have call successors, (26) Word has length 153 [2021-11-21 01:47:30,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:47:30,197 INFO L225 Difference]: With dead ends: 8384 [2021-11-21 01:47:30,197 INFO L226 Difference]: Without dead ends: 4307 [2021-11-21 01:47:30,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=89, Invalid=667, Unknown=0, NotChecked=0, Total=756 [2021-11-21 01:47:30,220 INFO L933 BasicCegarLoop]: 3431 mSDtfsCounter, 738 mSDsluCounter, 37590 mSDsCounter, 0 mSdLazyCounter, 24923 mSolverCounterSat, 1037 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 110.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 36822 SdHoareTripleChecker+Invalid, 25962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1037 IncrementalHoareTripleChecker+Valid, 24923 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 116.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:47:30,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [982 Valid, 36822 Invalid, 25962 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1037 Valid, 24923 Invalid, 2 Unknown, 0 Unchecked, 116.3s Time] [2021-11-21 01:47:30,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4307 states. [2021-11-21 01:47:30,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4307 to 4137. [2021-11-21 01:47:30,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4137 states, 2413 states have (on average 1.3265644426025693) internal successors, (3201), 2565 states have internal predecessors, (3201), 1385 states have call successors, (1385), 313 states have call predecessors, (1385), 315 states have return successors, (1397), 1322 states have call predecessors, (1397), 1383 states have call successors, (1397) [2021-11-21 01:47:30,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4137 states to 4137 states and 5983 transitions. [2021-11-21 01:47:30,775 INFO L78 Accepts]: Start accepts. Automaton has 4137 states and 5983 transitions. Word has length 153 [2021-11-21 01:47:30,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:47:30,776 INFO L470 AbstractCegarLoop]: Abstraction has 4137 states and 5983 transitions. [2021-11-21 01:47:30,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 11 states have (on average 6.363636363636363) internal successors, (70), 12 states have internal predecessors, (70), 6 states have call successors, (31), 3 states have call predecessors, (31), 5 states have return successors, (26), 7 states have call predecessors, (26), 5 states have call successors, (26) [2021-11-21 01:47:30,776 INFO L276 IsEmpty]: Start isEmpty. Operand 4137 states and 5983 transitions. [2021-11-21 01:47:30,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-21 01:47:30,780 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:47:30,780 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:47:30,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-21 01:47:30,781 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:47:30,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:47:30,784 INFO L85 PathProgramCache]: Analyzing trace with hash -186958914, now seen corresponding path program 1 times [2021-11-21 01:47:30,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:47:30,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399587732] [2021-11-21 01:47:30,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:47:30,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:47:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:47:31,430 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-11-21 01:47:31,431 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:47:31,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399587732] [2021-11-21 01:47:31,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399587732] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:47:31,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:47:31,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-21 01:47:31,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115991065] [2021-11-21 01:47:31,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:47:31,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-21 01:47:31,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:47:31,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-21 01:47:31,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2021-11-21 01:47:31,434 INFO L87 Difference]: Start difference. First operand 4137 states and 5983 transitions. Second operand has 17 states, 11 states have (on average 6.818181818181818) internal successors, (75), 12 states have internal predecessors, (75), 6 states have call successors, (31), 3 states have call predecessors, (31), 5 states have return successors, (27), 7 states have call predecessors, (27), 5 states have call successors, (27) [2021-11-21 01:47:50,445 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:12,844 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:16,550 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:17,617 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:19,456 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:34,858 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:07,597 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:49:14,702 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:15,964 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:18,101 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:20,644 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:22,464 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:24,317 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:25,812 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:34,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:49:34,177 INFO L93 Difference]: Finished difference Result 8464 states and 12308 transitions. [2021-11-21 01:49:34,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-21 01:49:34,177 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 11 states have (on average 6.818181818181818) internal successors, (75), 12 states have internal predecessors, (75), 6 states have call successors, (31), 3 states have call predecessors, (31), 5 states have return successors, (27), 7 states have call predecessors, (27), 5 states have call successors, (27) Word has length 159 [2021-11-21 01:49:34,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:49:34,188 INFO L225 Difference]: With dead ends: 8464 [2021-11-21 01:49:34,188 INFO L226 Difference]: Without dead ends: 4344 [2021-11-21 01:49:34,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=89, Invalid=667, Unknown=0, NotChecked=0, Total=756 [2021-11-21 01:49:34,201 INFO L933 BasicCegarLoop]: 3445 mSDtfsCounter, 770 mSDsluCounter, 37630 mSDsCounter, 0 mSdLazyCounter, 25128 mSolverCounterSat, 1057 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 114.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 36872 SdHoareTripleChecker+Invalid, 26187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1057 IncrementalHoareTripleChecker+Valid, 25128 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 121.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:49:34,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1022 Valid, 36872 Invalid, 26187 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1057 Valid, 25128 Invalid, 2 Unknown, 0 Unchecked, 121.5s Time] [2021-11-21 01:49:34,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4344 states. [2021-11-21 01:49:34,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4344 to 4146. [2021-11-21 01:49:34,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4146 states, 2419 states have (on average 1.3261678379495658) internal successors, (3208), 2570 states have internal predecessors, (3208), 1388 states have call successors, (1388), 313 states have call predecessors, (1388), 315 states have return successors, (1400), 1326 states have call predecessors, (1400), 1386 states have call successors, (1400) [2021-11-21 01:49:34,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4146 states to 4146 states and 5996 transitions. [2021-11-21 01:49:34,653 INFO L78 Accepts]: Start accepts. Automaton has 4146 states and 5996 transitions. Word has length 159 [2021-11-21 01:49:34,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:49:34,654 INFO L470 AbstractCegarLoop]: Abstraction has 4146 states and 5996 transitions. [2021-11-21 01:49:34,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 11 states have (on average 6.818181818181818) internal successors, (75), 12 states have internal predecessors, (75), 6 states have call successors, (31), 3 states have call predecessors, (31), 5 states have return successors, (27), 7 states have call predecessors, (27), 5 states have call successors, (27) [2021-11-21 01:49:34,654 INFO L276 IsEmpty]: Start isEmpty. Operand 4146 states and 5996 transitions. [2021-11-21 01:49:34,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-21 01:49:34,657 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:49:34,658 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:49:34,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-21 01:49:34,658 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:49:34,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:49:34,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1744512269, now seen corresponding path program 1 times [2021-11-21 01:49:34,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:49:34,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113221521] [2021-11-21 01:49:34,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:49:34,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:49:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:49:35,033 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-21 01:49:35,033 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:49:35,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113221521] [2021-11-21 01:49:35,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113221521] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:49:35,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:49:35,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:49:35,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661528997] [2021-11-21 01:49:35,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:49:35,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:49:35,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:49:35,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:49:35,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:49:35,035 INFO L87 Difference]: Start difference. First operand 4146 states and 5996 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, (32), 3 states have call predecessors, (32), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-21 01:49:38,856 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 [] [2021-11-21 01:49:45,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:49:45,827 INFO L93 Difference]: Finished difference Result 4165 states and 6014 transitions. [2021-11-21 01:49:45,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:49:45,827 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, (32), 3 states have call predecessors, (32), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 156 [2021-11-21 01:49:45,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:49:45,837 INFO L225 Difference]: With dead ends: 4165 [2021-11-21 01:49:45,838 INFO L226 Difference]: Without dead ends: 4163 [2021-11-21 01:49:45,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:49:45,840 INFO L933 BasicCegarLoop]: 3843 mSDtfsCounter, 288 mSDsluCounter, 12878 mSDsCounter, 0 mSdLazyCounter, 2149 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 15128 SdHoareTripleChecker+Invalid, 2150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2149 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:49:45,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 15128 Invalid, 2150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2149 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2021-11-21 01:49:45,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4163 states. [2021-11-21 01:49:46,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4163 to 4159. [2021-11-21 01:49:46,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4159 states, 2428 states have (on average 1.3245469522240527) internal successors, (3216), 2579 states have internal predecessors, (3216), 1390 states have call successors, (1390), 316 states have call predecessors, (1390), 317 states have return successors, (1402), 1327 states have call predecessors, (1402), 1388 states have call successors, (1402) [2021-11-21 01:49:46,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4159 states to 4159 states and 6008 transitions. [2021-11-21 01:49:46,250 INFO L78 Accepts]: Start accepts. Automaton has 4159 states and 6008 transitions. Word has length 156 [2021-11-21 01:49:46,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:49:46,251 INFO L470 AbstractCegarLoop]: Abstraction has 4159 states and 6008 transitions. [2021-11-21 01:49:46,251 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, (32), 3 states have call predecessors, (32), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-21 01:49:46,251 INFO L276 IsEmpty]: Start isEmpty. Operand 4159 states and 6008 transitions. [2021-11-21 01:49:46,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-11-21 01:49:46,261 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:49:46,262 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:49:46,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-21 01:49:46,262 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:49:46,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:49:46,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1018353371, now seen corresponding path program 1 times [2021-11-21 01:49:46,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:49:46,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926220286] [2021-11-21 01:49:46,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:49:46,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:49:46,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:49:46,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1238 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1238 trivial. 0 not checked. [2021-11-21 01:49:46,641 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:49:46,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926220286] [2021-11-21 01:49:46,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926220286] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:49:46,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:49:46,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:49:46,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377403559] [2021-11-21 01:49:46,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:49:46,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:49:46,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:49:46,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:49:46,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:49:46,644 INFO L87 Difference]: Start difference. First operand 4159 states and 6008 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-21 01:49:49,630 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:51,661 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:53,711 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:56,328 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:58,381 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:50:00,442 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:50:06,008 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:50:08,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:50:08,471 INFO L93 Difference]: Finished difference Result 11676 states and 16880 transitions. [2021-11-21 01:50:08,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:50:08,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 282 [2021-11-21 01:50:08,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:50:08,492 INFO L225 Difference]: With dead ends: 11676 [2021-11-21 01:50:08,492 INFO L226 Difference]: Without dead ends: 7910 [2021-11-21 01:50:08,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:50:08,520 INFO L933 BasicCegarLoop]: 4640 mSDtfsCounter, 4078 mSDsluCounter, 14033 mSDsCounter, 0 mSdLazyCounter, 2083 mSolverCounterSat, 4 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4081 SdHoareTripleChecker+Valid, 17152 SdHoareTripleChecker+Invalid, 2092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2083 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:50:08,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4081 Valid, 17152 Invalid, 2092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2083 Invalid, 5 Unknown, 0 Unchecked, 21.1s Time] [2021-11-21 01:50:08,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7910 states. [2021-11-21 01:50:09,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7910 to 7432. [2021-11-21 01:50:09,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7432 states, 4324 states have (on average 1.3304810360777057) internal successors, (5753), 4586 states have internal predecessors, (5753), 2538 states have call successors, (2538), 548 states have call predecessors, (2538), 546 states have return successors, (2575), 2416 states have call predecessors, (2575), 2536 states have call successors, (2575) [2021-11-21 01:50:09,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7432 states to 7432 states and 10866 transitions. [2021-11-21 01:50:09,237 INFO L78 Accepts]: Start accepts. Automaton has 7432 states and 10866 transitions. Word has length 282 [2021-11-21 01:50:09,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:50:09,238 INFO L470 AbstractCegarLoop]: Abstraction has 7432 states and 10866 transitions. [2021-11-21 01:50:09,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-21 01:50:09,238 INFO L276 IsEmpty]: Start isEmpty. Operand 7432 states and 10866 transitions. [2021-11-21 01:50:09,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-11-21 01:50:09,249 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:50:09,250 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 6, 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] [2021-11-21 01:50:09,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-21 01:50:09,250 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:50:09,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:50:09,251 INFO L85 PathProgramCache]: Analyzing trace with hash 285107477, now seen corresponding path program 1 times [2021-11-21 01:50:09,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:50:09,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416213586] [2021-11-21 01:50:09,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:50:09,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:50:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:50:09,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1248 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1248 trivial. 0 not checked. [2021-11-21 01:50:09,610 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:50:09,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416213586] [2021-11-21 01:50:09,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416213586] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:50:09,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:50:09,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:50:09,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609665315] [2021-11-21 01:50:09,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:50:09,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:50:09,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:50:09,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:50:09,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:50:09,613 INFO L87 Difference]: Start difference. First operand 7432 states and 10866 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-21 01:50:13,780 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:50:15,841 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:50:18,513 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 [] [2021-11-21 01:50:25,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:50:25,829 INFO L93 Difference]: Finished difference Result 7910 states and 11434 transitions. [2021-11-21 01:50:25,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:50:25,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 290 [2021-11-21 01:50:25,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:50:25,859 INFO L225 Difference]: With dead ends: 7910 [2021-11-21 01:50:25,859 INFO L226 Difference]: Without dead ends: 7908 [2021-11-21 01:50:25,864 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 [2021-11-21 01:50:25,865 INFO L933 BasicCegarLoop]: 4638 mSDtfsCounter, 4075 mSDsluCounter, 14036 mSDsCounter, 0 mSdLazyCounter, 2077 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4076 SdHoareTripleChecker+Valid, 17155 SdHoareTripleChecker+Invalid, 2081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2077 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:50:25,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4076 Valid, 17155 Invalid, 2081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2077 Invalid, 3 Unknown, 0 Unchecked, 15.5s Time] [2021-11-21 01:50:25,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7908 states. [2021-11-21 01:50:26,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7908 to 7432. [2021-11-21 01:50:26,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7432 states, 4324 states have (on average 1.330018501387604) internal successors, (5751), 4586 states have internal predecessors, (5751), 2538 states have call successors, (2538), 548 states have call predecessors, (2538), 546 states have return successors, (2575), 2416 states have call predecessors, (2575), 2536 states have call successors, (2575) [2021-11-21 01:50:26,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7432 states to 7432 states and 10864 transitions. [2021-11-21 01:50:26,510 INFO L78 Accepts]: Start accepts. Automaton has 7432 states and 10864 transitions. Word has length 290 [2021-11-21 01:50:26,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:50:26,510 INFO L470 AbstractCegarLoop]: Abstraction has 7432 states and 10864 transitions. [2021-11-21 01:50:26,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-21 01:50:26,510 INFO L276 IsEmpty]: Start isEmpty. Operand 7432 states and 10864 transitions. [2021-11-21 01:50:26,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-11-21 01:50:26,521 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:50:26,522 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:50:26,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-21 01:50:26,522 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:50:26,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:50:26,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1447054964, now seen corresponding path program 1 times [2021-11-21 01:50:26,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:50:26,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279092640] [2021-11-21 01:50:26,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:50:26,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:50:26,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:50:26,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1383 trivial. 0 not checked. [2021-11-21 01:50:26,792 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:50:26,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279092640] [2021-11-21 01:50:26,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279092640] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:50:26,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:50:26,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:50:26,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186295262] [2021-11-21 01:50:26,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:50:26,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:50:26,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:50:26,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:50:26,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:50:26,795 INFO L87 Difference]: Start difference. First operand 7432 states and 10864 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2021-11-21 01:50:30,836 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 [] [2021-11-21 01:50:34,691 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:50:36,743 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:50:37,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:50:37,253 INFO L93 Difference]: Finished difference Result 14515 states and 21232 transitions. [2021-11-21 01:50:37,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:50:37,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 290 [2021-11-21 01:50:37,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:50:37,273 INFO L225 Difference]: With dead ends: 14515 [2021-11-21 01:50:37,273 INFO L226 Difference]: Without dead ends: 7476 [2021-11-21 01:50:37,288 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 [2021-11-21 01:50:37,288 INFO L933 BasicCegarLoop]: 3663 mSDtfsCounter, 57 mSDsluCounter, 4106 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 7264 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:50:37,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 7264 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1025 Invalid, 2 Unknown, 0 Unchecked, 9.8s Time] [2021-11-21 01:50:37,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7476 states. [2021-11-21 01:50:37,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7476 to 7434. [2021-11-21 01:50:37,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7434 states, 4326 states have (on average 1.3298659269533055) internal successors, (5753), 4588 states have internal predecessors, (5753), 2538 states have call successors, (2538), 548 states have call predecessors, (2538), 546 states have return successors, (2575), 2416 states have call predecessors, (2575), 2536 states have call successors, (2575) [2021-11-21 01:50:37,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7434 states to 7434 states and 10866 transitions. [2021-11-21 01:50:37,947 INFO L78 Accepts]: Start accepts. Automaton has 7434 states and 10866 transitions. Word has length 290 [2021-11-21 01:50:37,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:50:37,947 INFO L470 AbstractCegarLoop]: Abstraction has 7434 states and 10866 transitions. [2021-11-21 01:50:37,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2021-11-21 01:50:37,948 INFO L276 IsEmpty]: Start isEmpty. Operand 7434 states and 10866 transitions. [2021-11-21 01:50:37,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-11-21 01:50:37,958 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:50:37,958 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:50:37,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-21 01:50:37,959 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:50:37,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:50:37,959 INFO L85 PathProgramCache]: Analyzing trace with hash 383101481, now seen corresponding path program 1 times [2021-11-21 01:50:37,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:50:37,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255388875] [2021-11-21 01:50:37,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:50:37,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:50:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:50:38,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1383 trivial. 0 not checked. [2021-11-21 01:50:38,304 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:50:38,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255388875] [2021-11-21 01:50:38,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255388875] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:50:38,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:50:38,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:50:38,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367109527] [2021-11-21 01:50:38,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:50:38,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:50:38,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:50:38,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:50:38,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:50:38,306 INFO L87 Difference]: Start difference. First operand 7434 states and 10866 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-21 01:50:41,650 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:50:43,513 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:50:48,011 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:50:51,637 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:50:52,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:50:52,475 INFO L93 Difference]: Finished difference Result 7582 states and 11007 transitions. [2021-11-21 01:50:52,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:50:52,475 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 291 [2021-11-21 01:50:52,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:50:52,498 INFO L225 Difference]: With dead ends: 7582 [2021-11-21 01:50:52,498 INFO L226 Difference]: Without dead ends: 7580 [2021-11-21 01:50:52,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:50:52,502 INFO L933 BasicCegarLoop]: 3747 mSDtfsCounter, 4032 mSDsluCounter, 8882 mSDsCounter, 0 mSdLazyCounter, 1637 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4034 SdHoareTripleChecker+Valid, 11524 SdHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1637 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:50:52,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4034 Valid, 11524 Invalid, 1640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1637 Invalid, 1 Unknown, 0 Unchecked, 13.5s Time] [2021-11-21 01:50:52,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7580 states. [2021-11-21 01:50:53,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7580 to 7456. [2021-11-21 01:50:53,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7456 states, 4342 states have (on average 1.3291110087517273) internal successors, (5771), 4604 states have internal predecessors, (5771), 2538 states have call successors, (2538), 554 states have call predecessors, (2538), 552 states have return successors, (2575), 2416 states have call predecessors, (2575), 2536 states have call successors, (2575) [2021-11-21 01:50:53,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7456 states to 7456 states and 10884 transitions. [2021-11-21 01:50:53,203 INFO L78 Accepts]: Start accepts. Automaton has 7456 states and 10884 transitions. Word has length 291 [2021-11-21 01:50:53,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:50:53,203 INFO L470 AbstractCegarLoop]: Abstraction has 7456 states and 10884 transitions. [2021-11-21 01:50:53,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-21 01:50:53,203 INFO L276 IsEmpty]: Start isEmpty. Operand 7456 states and 10884 transitions. [2021-11-21 01:50:53,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2021-11-21 01:50:53,214 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:50:53,214 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:50:53,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-21 01:50:53,215 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:50:53,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:50:53,215 INFO L85 PathProgramCache]: Analyzing trace with hash -684155477, now seen corresponding path program 1 times [2021-11-21 01:50:53,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:50:53,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783208163] [2021-11-21 01:50:53,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:50:53,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:50:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:50:53,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1458 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1458 trivial. 0 not checked. [2021-11-21 01:50:53,507 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:50:53,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783208163] [2021-11-21 01:50:53,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783208163] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:50:53,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:50:53,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:50:53,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759822609] [2021-11-21 01:50:53,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:50:53,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:50:53,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:50:53,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:50:53,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:50:53,509 INFO L87 Difference]: Start difference. First operand 7456 states and 10884 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2021-11-21 01:50:56,493 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:50:59,402 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:51:01,469 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:51:08,531 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:51:09,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:51:09,473 INFO L93 Difference]: Finished difference Result 7458 states and 10885 transitions. [2021-11-21 01:51:09,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:51:09,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 308 [2021-11-21 01:51:09,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:51:09,490 INFO L225 Difference]: With dead ends: 7458 [2021-11-21 01:51:09,490 INFO L226 Difference]: Without dead ends: 7456 [2021-11-21 01:51:09,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:51:09,493 INFO L933 BasicCegarLoop]: 3660 mSDtfsCounter, 14 mSDsluCounter, 12496 mSDsCounter, 0 mSdLazyCounter, 2057 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 14621 SdHoareTripleChecker+Invalid, 2060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2057 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:51:09,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 14621 Invalid, 2060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2057 Invalid, 2 Unknown, 0 Unchecked, 15.3s Time] [2021-11-21 01:51:09,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7456 states. [2021-11-21 01:51:10,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7456 to 7456. [2021-11-21 01:51:10,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7456 states, 4342 states have (on average 1.328650391524643) internal successors, (5769), 4604 states have internal predecessors, (5769), 2538 states have call successors, (2538), 554 states have call predecessors, (2538), 552 states have return successors, (2575), 2416 states have call predecessors, (2575), 2536 states have call successors, (2575) [2021-11-21 01:51:10,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7456 states to 7456 states and 10882 transitions. [2021-11-21 01:51:10,072 INFO L78 Accepts]: Start accepts. Automaton has 7456 states and 10882 transitions. Word has length 308 [2021-11-21 01:51:10,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:51:10,072 INFO L470 AbstractCegarLoop]: Abstraction has 7456 states and 10882 transitions. [2021-11-21 01:51:10,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2021-11-21 01:51:10,072 INFO L276 IsEmpty]: Start isEmpty. Operand 7456 states and 10882 transitions. [2021-11-21 01:51:10,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2021-11-21 01:51:10,082 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:51:10,082 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 6, 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, 1, 1, 1, 1] [2021-11-21 01:51:10,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-21 01:51:10,082 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:51:10,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:51:10,082 INFO L85 PathProgramCache]: Analyzing trace with hash 124507775, now seen corresponding path program 1 times [2021-11-21 01:51:10,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:51:10,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977082481] [2021-11-21 01:51:10,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:51:10,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:51:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:51:10,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1242 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1242 trivial. 0 not checked. [2021-11-21 01:51:10,520 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:51:10,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977082481] [2021-11-21 01:51:10,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977082481] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:51:10,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:51:10,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:51:10,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829136054] [2021-11-21 01:51:10,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:51:10,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:51:10,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:51:10,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:51:10,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:51:10,524 INFO L87 Difference]: Start difference. First operand 7456 states and 10882 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-21 01:51:14,166 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:51:20,376 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:51:21,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:51:21,453 INFO L93 Difference]: Finished difference Result 9446 states and 13624 transitions. [2021-11-21 01:51:21,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:51:21,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 303 [2021-11-21 01:51:21,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:51:21,474 INFO L225 Difference]: With dead ends: 9446 [2021-11-21 01:51:21,474 INFO L226 Difference]: Without dead ends: 9444 [2021-11-21 01:51:21,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:51:21,477 INFO L933 BasicCegarLoop]: 4129 mSDtfsCounter, 4045 mSDsluCounter, 10758 mSDsCounter, 0 mSdLazyCounter, 1871 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4047 SdHoareTripleChecker+Valid, 13575 SdHoareTripleChecker+Invalid, 1875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1871 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:51:21,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4047 Valid, 13575 Invalid, 1875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1871 Invalid, 1 Unknown, 0 Unchecked, 10.1s Time] [2021-11-21 01:51:21,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9444 states. [2021-11-21 01:51:22,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9444 to 9140. [2021-11-21 01:51:22,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9140 states, 5307 states have (on average 1.322215941209723) internal successors, (7017), 5610 states have internal predecessors, (7017), 3096 states have call successors, (3096), 718 states have call predecessors, (3096), 713 states have return successors, (3154), 2954 states have call predecessors, (3154), 3094 states have call successors, (3154) [2021-11-21 01:51:22,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9140 states to 9140 states and 13267 transitions. [2021-11-21 01:51:22,255 INFO L78 Accepts]: Start accepts. Automaton has 9140 states and 13267 transitions. Word has length 303 [2021-11-21 01:51:22,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:51:22,255 INFO L470 AbstractCegarLoop]: Abstraction has 9140 states and 13267 transitions. [2021-11-21 01:51:22,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-21 01:51:22,255 INFO L276 IsEmpty]: Start isEmpty. Operand 9140 states and 13267 transitions. [2021-11-21 01:51:22,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2021-11-21 01:51:22,264 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:51:22,264 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:51:22,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-21 01:51:22,264 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:51:22,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:51:22,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1100808594, now seen corresponding path program 1 times [2021-11-21 01:51:22,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:51:22,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129271766] [2021-11-21 01:51:22,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:51:22,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:51:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:51:22,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2021-11-21 01:51:22,537 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:51:22,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129271766] [2021-11-21 01:51:22,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129271766] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:51:22,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:51:22,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:51:22,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917368905] [2021-11-21 01:51:22,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:51:22,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:51:22,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:51:22,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:51:22,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:51:22,540 INFO L87 Difference]: Start difference. First operand 9140 states and 13267 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-21 01:51:26,372 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:51:31,194 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:51:33,442 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:51:35,033 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:51:36,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:51:36,295 INFO L93 Difference]: Finished difference Result 9146 states and 13271 transitions. [2021-11-21 01:51:36,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:51:36,295 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 321 [2021-11-21 01:51:36,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:51:36,316 INFO L225 Difference]: With dead ends: 9146 [2021-11-21 01:51:36,317 INFO L226 Difference]: Without dead ends: 9144 [2021-11-21 01:51:36,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:51:36,320 INFO L933 BasicCegarLoop]: 3655 mSDtfsCounter, 22 mSDsluCounter, 12476 mSDsCounter, 0 mSdLazyCounter, 2049 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 14603 SdHoareTripleChecker+Invalid, 2052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2049 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:51:36,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 14603 Invalid, 2052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2049 Invalid, 2 Unknown, 0 Unchecked, 13.0s Time] [2021-11-21 01:51:36,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9144 states. [2021-11-21 01:51:37,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9144 to 9144. [2021-11-21 01:51:37,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9144 states, 5310 states have (on average 1.321280602636535) internal successors, (7016), 5612 states have internal predecessors, (7016), 3096 states have call successors, (3096), 720 states have call predecessors, (3096), 715 states have return successors, (3154), 2954 states have call predecessors, (3154), 3094 states have call successors, (3154) [2021-11-21 01:51:37,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9144 states to 9144 states and 13266 transitions. [2021-11-21 01:51:37,193 INFO L78 Accepts]: Start accepts. Automaton has 9144 states and 13266 transitions. Word has length 321 [2021-11-21 01:51:37,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:51:37,193 INFO L470 AbstractCegarLoop]: Abstraction has 9144 states and 13266 transitions. [2021-11-21 01:51:37,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-21 01:51:37,194 INFO L276 IsEmpty]: Start isEmpty. Operand 9144 states and 13266 transitions. [2021-11-21 01:51:37,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2021-11-21 01:51:37,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:51:37,205 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 6, 5, 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, 1, 1, 1, 1] [2021-11-21 01:51:37,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-21 01:51:37,205 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:51:37,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:51:37,205 INFO L85 PathProgramCache]: Analyzing trace with hash -933885722, now seen corresponding path program 1 times [2021-11-21 01:51:37,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:51:37,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47088395] [2021-11-21 01:51:37,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:51:37,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:51:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:51:37,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1297 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 1274 trivial. 0 not checked. [2021-11-21 01:51:37,560 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:51:37,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47088395] [2021-11-21 01:51:37,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47088395] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:51:37,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:51:37,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:51:37,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111095295] [2021-11-21 01:51:37,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:51:37,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:51:37,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:51:37,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:51:37,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:51:37,562 INFO L87 Difference]: Start difference. First operand 9144 states and 13266 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-21 01:51:40,883 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:51:46,220 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:51:47,240 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:51:48,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:51:48,400 INFO L93 Difference]: Finished difference Result 17842 states and 25934 transitions. [2021-11-21 01:51:48,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:51:48,401 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 337 [2021-11-21 01:51:48,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:51:48,425 INFO L225 Difference]: With dead ends: 17842 [2021-11-21 01:51:48,425 INFO L226 Difference]: Without dead ends: 9091 [2021-11-21 01:51:48,452 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 [2021-11-21 01:51:48,452 INFO L933 BasicCegarLoop]: 3645 mSDtfsCounter, 43 mSDsluCounter, 8247 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 10878 SdHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:51:48,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 10878 Invalid, 1544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1527 Invalid, 1 Unknown, 0 Unchecked, 10.0s Time] [2021-11-21 01:51:48,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9091 states. [2021-11-21 01:51:49,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9091 to 9091. [2021-11-21 01:51:49,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9091 states, 5279 states have (on average 1.3208941087327146) internal successors, (6973), 5578 states have internal predecessors, (6973), 3080 states have call successors, (3080), 712 states have call predecessors, (3080), 709 states have return successors, (3138), 2943 states have call predecessors, (3138), 3078 states have call successors, (3138) [2021-11-21 01:51:49,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9091 states to 9091 states and 13191 transitions. [2021-11-21 01:51:49,278 INFO L78 Accepts]: Start accepts. Automaton has 9091 states and 13191 transitions. Word has length 337 [2021-11-21 01:51:49,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:51:49,279 INFO L470 AbstractCegarLoop]: Abstraction has 9091 states and 13191 transitions. [2021-11-21 01:51:49,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-21 01:51:49,279 INFO L276 IsEmpty]: Start isEmpty. Operand 9091 states and 13191 transitions. [2021-11-21 01:51:49,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2021-11-21 01:51:49,290 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:51:49,290 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 6, 5, 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, 1] [2021-11-21 01:51:49,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-21 01:51:49,291 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-21 01:51:49,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:51:49,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1964008964, now seen corresponding path program 1 times [2021-11-21 01:51:49,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:51:49,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006542940] [2021-11-21 01:51:49,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:51:49,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:51:49,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:51:50,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1314 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 1291 trivial. 0 not checked. [2021-11-21 01:51:50,263 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:51:50,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006542940] [2021-11-21 01:51:50,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006542940] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:51:50,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485062965] [2021-11-21 01:51:50,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:51:50,264 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:51:50,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:51:50,266 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:51:50,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded7e09b-a75f-4969-be50-979b2b1d3d6b/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:51:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:51:52,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 5984 conjuncts, 81 conjunts are in the unsatisfiable core [2021-11-21 01:51:52,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:51:55,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1314 backedges. 18 proven. 31 refuted. 0 times theorem prover too weak. 1265 trivial. 0 not checked. [2021-11-21 01:51:55,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:52:02,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1314 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 1295 trivial. 0 not checked. [2021-11-21 01:52:02,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485062965] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:52:02,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [316231207] [2021-11-21 01:52:02,193 INFO L159 IcfgInterpreter]: Started Sifa with 131 locations of interest [2021-11-21 01:52:02,193 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:52:02,198 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:52:02,204 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:52:02,204 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:52:21,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-21 01:52:42,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16