./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--media--usb--gspca--gspca_main.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 68ead1e29a6cc769e9e712c81a52de8a551f5275fff71a8b8c48675aa28de434 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:12:13,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:12:13,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:12:13,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:12:13,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:12:13,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:12:13,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:12:13,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:12:13,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:12:13,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:12:13,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:12:13,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:12:13,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:12:13,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:12:13,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:12:13,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:12:13,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:12:13,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:12:13,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:12:13,544 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:12:13,546 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:12:13,547 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:12:13,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:12:13,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:12:13,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:12:13,562 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:12:13,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:12:13,565 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:12:13,565 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:12:13,567 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:12:13,567 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:12:13,568 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:12:13,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:12:13,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:12:13,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:12:13,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:12:13,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:12:13,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:12:13,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:12:13,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:12:13,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:12:13,577 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 19:12:13,605 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:12:13,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:12:13,606 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:12:13,606 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:12:13,607 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:12:13,607 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:12:13,607 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:12:13,607 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:12:13,607 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:12:13,608 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:12:13,608 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:12:13,608 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:12:13,608 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:12:13,608 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:12:13,608 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:12:13,609 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:12:13,609 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:12:13,609 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:12:13,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:12:13,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:12:13,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:12:13,610 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:12:13,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:12:13,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:12:13,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:12:13,611 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:12:13,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:12:13,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:12:13,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:12:13,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:12:13,612 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:12:13,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:12:13,612 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:12:13,613 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:12:13,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:12:13,613 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:12:13,613 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:12:13,613 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:12:13,613 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_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68ead1e29a6cc769e9e712c81a52de8a551f5275fff71a8b8c48675aa28de434 [2021-11-25 19:12:13,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:12:13,877 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:12:13,879 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:12:13,881 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:12:13,881 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:12:13,883 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i [2021-11-25 19:12:13,939 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/bin/utaipan-eEHZpOm5b7/data/b38563b07/4b363eeee94841bdb32eadb3af9a0159/FLAG3c2488262 [2021-11-25 19:12:14,963 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:12:14,964 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i [2021-11-25 19:12:15,053 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/bin/utaipan-eEHZpOm5b7/data/b38563b07/4b363eeee94841bdb32eadb3af9a0159/FLAG3c2488262 [2021-11-25 19:12:15,285 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/bin/utaipan-eEHZpOm5b7/data/b38563b07/4b363eeee94841bdb32eadb3af9a0159 [2021-11-25 19:12:15,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:12:15,289 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:12:15,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:12:15,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:12:15,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:12:15,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:12:15" (1/1) ... [2021-11-25 19:12:15,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ba7d9df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:12:15, skipping insertion in model container [2021-11-25 19:12:15,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:12:15" (1/1) ... [2021-11-25 19:12:15,305 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:12:15,487 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:12:19,789 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[418415,418428] [2021-11-25 19:12:19,792 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[418560,418573] [2021-11-25 19:12:19,793 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[418706,418719] [2021-11-25 19:12:19,793 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[418871,418884] [2021-11-25 19:12:19,794 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419029,419042] [2021-11-25 19:12:19,794 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419187,419200] [2021-11-25 19:12:19,795 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419345,419358] [2021-11-25 19:12:19,795 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419505,419518] [2021-11-25 19:12:19,795 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419664,419677] [2021-11-25 19:12:19,796 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419803,419816] [2021-11-25 19:12:19,797 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419945,419958] [2021-11-25 19:12:19,797 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[420094,420107] [2021-11-25 19:12:19,798 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[420233,420246] [2021-11-25 19:12:19,798 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[420388,420401] [2021-11-25 19:12:19,798 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[420548,420561] [2021-11-25 19:12:19,799 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[420699,420712] [2021-11-25 19:12:19,799 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[420850,420863] [2021-11-25 19:12:19,800 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421002,421015] [2021-11-25 19:12:19,800 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421151,421164] [2021-11-25 19:12:19,801 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421299,421312] [2021-11-25 19:12:19,801 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421456,421469] [2021-11-25 19:12:19,802 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421605,421618] [2021-11-25 19:12:19,802 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421761,421774] [2021-11-25 19:12:19,803 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421914,421927] [2021-11-25 19:12:19,803 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422060,422073] [2021-11-25 19:12:19,804 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422203,422216] [2021-11-25 19:12:19,804 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422355,422368] [2021-11-25 19:12:19,804 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422501,422514] [2021-11-25 19:12:19,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422646,422659] [2021-11-25 19:12:19,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422800,422813] [2021-11-25 19:12:19,806 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422951,422964] [2021-11-25 19:12:19,806 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[423106,423119] [2021-11-25 19:12:19,807 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[423258,423271] [2021-11-25 19:12:19,807 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[423413,423426] [2021-11-25 19:12:19,807 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[423577,423590] [2021-11-25 19:12:19,808 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[423733,423746] [2021-11-25 19:12:19,808 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[423897,423910] [2021-11-25 19:12:19,809 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424039,424052] [2021-11-25 19:12:19,809 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424197,424210] [2021-11-25 19:12:19,810 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424364,424377] [2021-11-25 19:12:19,810 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424523,424536] [2021-11-25 19:12:19,810 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424682,424695] [2021-11-25 19:12:19,811 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424831,424844] [2021-11-25 19:12:19,811 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424978,424991] [2021-11-25 19:12:19,812 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[425117,425130] [2021-11-25 19:12:19,812 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[425280,425293] [2021-11-25 19:12:19,813 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[425446,425459] [2021-11-25 19:12:19,813 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[425610,425623] [2021-11-25 19:12:19,813 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[425775,425788] [2021-11-25 19:12:19,814 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[425940,425953] [2021-11-25 19:12:19,814 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[426106,426119] [2021-11-25 19:12:19,815 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[426271,426284] [2021-11-25 19:12:19,815 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[426438,426451] [2021-11-25 19:12:19,816 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[426598,426611] [2021-11-25 19:12:19,816 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[426760,426773] [2021-11-25 19:12:19,817 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[426919,426932] [2021-11-25 19:12:19,817 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427065,427078] [2021-11-25 19:12:19,817 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427208,427221] [2021-11-25 19:12:19,818 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427352,427365] [2021-11-25 19:12:19,818 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427495,427508] [2021-11-25 19:12:19,819 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427639,427652] [2021-11-25 19:12:19,819 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427780,427793] [2021-11-25 19:12:19,820 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427918,427931] [2021-11-25 19:12:19,820 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428076,428089] [2021-11-25 19:12:19,821 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428235,428248] [2021-11-25 19:12:19,821 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428391,428404] [2021-11-25 19:12:19,821 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428540,428553] [2021-11-25 19:12:19,822 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428692,428705] [2021-11-25 19:12:19,822 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428843,428856] [2021-11-25 19:12:19,823 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428992,429005] [2021-11-25 19:12:19,823 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[429144,429157] [2021-11-25 19:12:19,824 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[429292,429305] [2021-11-25 19:12:19,824 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[429445,429458] [2021-11-25 19:12:19,824 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[429596,429609] [2021-11-25 19:12:19,825 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[429746,429759] [2021-11-25 19:12:19,825 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[429893,429906] [2021-11-25 19:12:19,826 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[430044,430057] [2021-11-25 19:12:19,826 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[430195,430208] [2021-11-25 19:12:19,826 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[430343,430356] [2021-11-25 19:12:19,827 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[430509,430522] [2021-11-25 19:12:19,827 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[430678,430691] [2021-11-25 19:12:19,828 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[430845,430858] [2021-11-25 19:12:19,828 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[431013,431026] [2021-11-25 19:12:19,828 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[431163,431176] [2021-11-25 19:12:19,829 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[431310,431323] [2021-11-25 19:12:19,829 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[431471,431484] [2021-11-25 19:12:19,830 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[431641,431654] [2021-11-25 19:12:19,830 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[431803,431816] [2021-11-25 19:12:19,846 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:12:19,893 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:12:20,501 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_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[418415,418428] [2021-11-25 19:12:20,502 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[418560,418573] [2021-11-25 19:12:20,502 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[418706,418719] [2021-11-25 19:12:20,503 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[418871,418884] [2021-11-25 19:12:20,503 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419029,419042] [2021-11-25 19:12:20,503 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419187,419200] [2021-11-25 19:12:20,504 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419345,419358] [2021-11-25 19:12:20,504 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419505,419518] [2021-11-25 19:12:20,504 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419664,419677] [2021-11-25 19:12:20,504 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419803,419816] [2021-11-25 19:12:20,505 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419945,419958] [2021-11-25 19:12:20,505 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[420094,420107] [2021-11-25 19:12:20,505 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[420233,420246] [2021-11-25 19:12:20,506 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[420388,420401] [2021-11-25 19:12:20,506 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[420548,420561] [2021-11-25 19:12:20,506 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[420699,420712] [2021-11-25 19:12:20,506 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[420850,420863] [2021-11-25 19:12:20,507 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421002,421015] [2021-11-25 19:12:20,507 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421151,421164] [2021-11-25 19:12:20,507 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421299,421312] [2021-11-25 19:12:20,507 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421456,421469] [2021-11-25 19:12:20,508 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421605,421618] [2021-11-25 19:12:20,508 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421761,421774] [2021-11-25 19:12:20,509 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421914,421927] [2021-11-25 19:12:20,509 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422060,422073] [2021-11-25 19:12:20,510 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422203,422216] [2021-11-25 19:12:20,510 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422355,422368] [2021-11-25 19:12:20,510 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422501,422514] [2021-11-25 19:12:20,511 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422646,422659] [2021-11-25 19:12:20,511 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422800,422813] [2021-11-25 19:12:20,512 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422951,422964] [2021-11-25 19:12:20,512 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[423106,423119] [2021-11-25 19:12:20,513 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[423258,423271] [2021-11-25 19:12:20,513 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[423413,423426] [2021-11-25 19:12:20,514 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[423577,423590] [2021-11-25 19:12:20,514 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[423733,423746] [2021-11-25 19:12:20,514 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[423897,423910] [2021-11-25 19:12:20,515 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424039,424052] [2021-11-25 19:12:20,515 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424197,424210] [2021-11-25 19:12:20,516 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424364,424377] [2021-11-25 19:12:20,516 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424523,424536] [2021-11-25 19:12:20,552 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424682,424695] [2021-11-25 19:12:20,552 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424831,424844] [2021-11-25 19:12:20,552 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424978,424991] [2021-11-25 19:12:20,553 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[425117,425130] [2021-11-25 19:12:20,553 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[425280,425293] [2021-11-25 19:12:20,553 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[425446,425459] [2021-11-25 19:12:20,554 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[425610,425623] [2021-11-25 19:12:20,554 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[425775,425788] [2021-11-25 19:12:20,554 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[425940,425953] [2021-11-25 19:12:20,555 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[426106,426119] [2021-11-25 19:12:20,555 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[426271,426284] [2021-11-25 19:12:20,555 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[426438,426451] [2021-11-25 19:12:20,556 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[426598,426611] [2021-11-25 19:12:20,556 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[426760,426773] [2021-11-25 19:12:20,556 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[426919,426932] [2021-11-25 19:12:20,557 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427065,427078] [2021-11-25 19:12:20,557 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427208,427221] [2021-11-25 19:12:20,557 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427352,427365] [2021-11-25 19:12:20,558 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427495,427508] [2021-11-25 19:12:20,558 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427639,427652] [2021-11-25 19:12:20,558 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427780,427793] [2021-11-25 19:12:20,559 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427918,427931] [2021-11-25 19:12:20,559 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428076,428089] [2021-11-25 19:12:20,559 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428235,428248] [2021-11-25 19:12:20,560 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428391,428404] [2021-11-25 19:12:20,560 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428540,428553] [2021-11-25 19:12:20,560 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428692,428705] [2021-11-25 19:12:20,560 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428843,428856] [2021-11-25 19:12:20,561 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428992,429005] [2021-11-25 19:12:20,561 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[429144,429157] [2021-11-25 19:12:20,561 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[429292,429305] [2021-11-25 19:12:20,562 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[429445,429458] [2021-11-25 19:12:20,562 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[429596,429609] [2021-11-25 19:12:20,562 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[429746,429759] [2021-11-25 19:12:20,563 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[429893,429906] [2021-11-25 19:12:20,563 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[430044,430057] [2021-11-25 19:12:20,566 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[430195,430208] [2021-11-25 19:12:20,567 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[430343,430356] [2021-11-25 19:12:20,568 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[430509,430522] [2021-11-25 19:12:20,569 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[430678,430691] [2021-11-25 19:12:20,570 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[430845,430858] [2021-11-25 19:12:20,570 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[431013,431026] [2021-11-25 19:12:20,571 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[431163,431176] [2021-11-25 19:12:20,572 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[431310,431323] [2021-11-25 19:12:20,572 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[431471,431484] [2021-11-25 19:12:20,572 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[431641,431654] [2021-11-25 19:12:20,573 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[431803,431816] [2021-11-25 19:12:20,580 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:12:20,891 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:12:20,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:12:20 WrapperNode [2021-11-25 19:12:20,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:12:20,893 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:12:20,894 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:12:20,894 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:12:20,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:12:20" (1/1) ... [2021-11-25 19:12:21,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:12:20" (1/1) ... [2021-11-25 19:12:21,317 INFO L137 Inliner]: procedures = 643, calls = 3813, calls flagged for inlining = 294, calls inlined = 195, statements flattened = 6040 [2021-11-25 19:12:21,318 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:12:21,319 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:12:21,319 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:12:21,319 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:12:21,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:12:20" (1/1) ... [2021-11-25 19:12:21,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:12:20" (1/1) ... [2021-11-25 19:12:21,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:12:20" (1/1) ... [2021-11-25 19:12:21,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:12:20" (1/1) ... [2021-11-25 19:12:21,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:12:20" (1/1) ... [2021-11-25 19:12:21,491 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:12:20" (1/1) ... [2021-11-25 19:12:21,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:12:20" (1/1) ... [2021-11-25 19:12:21,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:12:21,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:12:21,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:12:21,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:12:21,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:12:20" (1/1) ... [2021-11-25 19:12:21,668 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:12:21,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:12:21,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:12:21,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0ba8bd1-8969-408d-a834-3e5204b1ae3a/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:12:21,751 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-25 19:12:21,752 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-25 19:12:21,752 INFO L130 BoogieDeclarations]: Found specification of procedure PDEBUG_MODE [2021-11-25 19:12:21,752 INFO L138 BoogieDeclarations]: Found implementation of procedure PDEBUG_MODE [2021-11-25 19:12:21,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-25 19:12:21,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-25 19:12:21,752 INFO L130 BoogieDeclarations]: Found specification of procedure alt_xfer [2021-11-25 19:12:21,753 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_xfer [2021-11-25 19:12:21,753 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamon [2021-11-25 19:12:21,753 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamon [2021-11-25 19:12:21,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 19:12:21,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 19:12:21,755 INFO L130 BoogieDeclarations]: Found specification of procedure dev_poll [2021-11-25 19:12:21,755 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_poll [2021-11-25 19:12:21,755 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_reqbufs [2021-11-25 19:12:21,755 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_reqbufs [2021-11-25 19:12:21,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-25 19:12:21,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-25 19:12:21,756 INFO L130 BoogieDeclarations]: Found specification of procedure frame_ready_nolock [2021-11-25 19:12:21,756 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_ready_nolock [2021-11-25 19:12:21,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2021-11-25 19:12:21,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2021-11-25 19:12:21,756 INFO L130 BoogieDeclarations]: Found specification of procedure frame_ready [2021-11-25 19:12:21,757 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_ready [2021-11-25 19:12:21,757 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-11-25 19:12:21,757 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-11-25 19:12:21,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-25 19:12:21,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-25 19:12:21,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-25 19:12:21,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-25 19:12:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_set_alt0 [2021-11-25 19:12:21,758 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_set_alt0 [2021-11-25 19:12:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2021-11-25 19:12:21,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2021-11-25 19:12:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 19:12:21,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 19:12:21,759 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2021-11-25 19:12:21,759 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2021-11-25 19:12:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 19:12:21,760 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 19:12:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure int_irq [2021-11-25 19:12:21,760 INFO L138 BoogieDeclarations]: Found implementation of procedure int_irq [2021-11-25 19:12:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 19:12:21,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 19:12:21,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-25 19:12:21,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-25 19:12:21,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_queue_lock_of_gspca_dev [2021-11-25 19:12:21,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_queue_lock_of_gspca_dev [2021-11-25 19:12:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_setup [2021-11-25 19:12:21,762 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_setup [2021-11-25 19:12:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:12:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_usb_lock_of_gspca_dev [2021-11-25 19:12:21,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_usb_lock_of_gspca_dev [2021-11-25 19:12:21,763 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_stream_off [2021-11-25 19:12:21,763 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_stream_off [2021-11-25 19:12:21,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-25 19:12:21,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-25 19:12:21,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 19:12:21,764 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_input_create_urb [2021-11-25 19:12:21,764 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_input_create_urb [2021-11-25 19:12:21,764 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_timeval [2021-11-25 19:12:21,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_timeval [2021-11-25 19:12:21,765 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-25 19:12:21,765 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-25 19:12:21,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 19:12:21,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-25 19:12:21,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-25 19:12:21,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 19:12:21,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 19:12:21,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-25 19:12:21,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-25 19:12:21,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:12:21,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-25 19:12:21,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-25 19:12:21,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 19:12:21,777 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 19:12:21,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-25 19:12:21,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-25 19:12:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-25 19:12:21,778 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-25 19:12:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 19:12:21,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 19:12:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-11-25 19:12:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-11-25 19:12:21,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-25 19:12:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-25 19:12:21,779 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-25 19:12:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-25 19:12:21,779 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2021-11-25 19:12:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2021-11-25 19:12:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-25 19:12:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-25 19:12:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:12:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_resume [2021-11-25 19:12:21,781 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_resume [2021-11-25 19:12:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_urbs [2021-11-25 19:12:21,781 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_urbs [2021-11-25 19:12:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:12:21,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 19:12:21,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 19:12:21,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 19:12:21,782 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 19:12:21,782 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 19:12:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 19:12:21,783 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-25 19:12:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-25 19:12:21,783 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 19:12:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 19:12:21,783 INFO L130 BoogieDeclarations]: Found specification of procedure dev_open [2021-11-25 19:12:21,784 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_open [2021-11-25 19:12:21,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_queue_lock_of_gspca_dev [2021-11-25 19:12:21,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_queue_lock_of_gspca_dev [2021-11-25 19:12:21,784 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_vm_close [2021-11-25 19:12:21,784 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_vm_close [2021-11-25 19:12:21,784 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_qbuf [2021-11-25 19:12:21,784 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_qbuf [2021-11-25 19:12:21,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-25 19:12:21,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-25 19:12:21,785 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2021-11-25 19:12:21,786 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2021-11-25 19:12:21,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-25 19:12:21,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-25 19:12:21,786 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2021-11-25 19:12:21,787 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2021-11-25 19:12:21,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:12:21,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:12:21,787 INFO L130 BoogieDeclarations]: Found specification of procedure wxh_to_mode [2021-11-25 19:12:21,787 INFO L138 BoogieDeclarations]: Found implementation of procedure wxh_to_mode [2021-11-25 19:12:21,787 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-11-25 19:12:21,788 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-11-25 19:12:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 19:12:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 19:12:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 19:12:21,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 19:12:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2021-11-25 19:12:21,788 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2021-11-25 19:12:21,789 INFO L130 BoogieDeclarations]: Found specification of procedure frame_free [2021-11-25 19:12:21,789 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_free [2021-11-25 19:12:21,789 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-25 19:12:21,789 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-25 19:12:21,789 INFO L130 BoogieDeclarations]: Found specification of procedure dev_mmap [2021-11-25 19:12:21,789 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_mmap [2021-11-25 19:12:21,790 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2021-11-25 19:12:21,790 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2021-11-25 19:12:21,790 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamoff [2021-11-25 19:12:21,790 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamoff [2021-11-25 19:12:21,790 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_init_transfer [2021-11-25 19:12:21,790 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_init_transfer [2021-11-25 19:12:21,790 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-25 19:12:21,791 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-25 19:12:21,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 19:12:21,791 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 19:12:21,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-25 19:12:21,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-25 19:12:21,791 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2021-11-25 19:12:21,792 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2021-11-25 19:12:21,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-25 19:12:21,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-25 19:12:21,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-25 19:12:21,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-25 19:12:21,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:12:21,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-25 19:12:21,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-25 19:12:21,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 19:12:21,793 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-25 19:12:21,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-25 19:12:21,793 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2021-11-25 19:12:21,793 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2021-11-25 19:12:21,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_usb_lock_of_gspca_dev [2021-11-25 19:12:21,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_usb_lock_of_gspca_dev [2021-11-25 19:12:21,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_free_coherent [2021-11-25 19:12:21,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_free_coherent [2021-11-25 19:12:21,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 19:12:21,794 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2021-11-25 19:12:21,795 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2021-11-25 19:12:21,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_module_put [2021-11-25 19:12:21,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_module_put [2021-11-25 19:12:21,795 INFO L130 BoogieDeclarations]: Found specification of procedure read_alloc [2021-11-25 19:12:21,795 INFO L138 BoogieDeclarations]: Found implementation of procedure read_alloc [2021-11-25 19:12:21,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-25 19:12:21,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-25 19:12:21,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 19:12:21,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 19:12:21,796 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_dqbuf [2021-11-25 19:12:21,796 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_dqbuf [2021-11-25 19:12:21,796 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release_empty [2021-11-25 19:12:21,796 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release_empty [2021-11-25 19:12:21,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-25 19:12:21,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-25 19:12:21,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-11-25 19:12:21,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-11-25 19:12:21,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-25 19:12:21,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-25 19:12:21,800 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_input_destroy_urb [2021-11-25 19:12:21,801 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_input_destroy_urb [2021-11-25 19:12:21,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-25 19:12:21,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-25 19:12:21,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-25 19:12:21,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-25 19:12:21,801 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-25 19:12:21,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-25 19:12:21,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-25 19:12:21,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-25 19:12:21,803 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-25 19:12:21,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-25 19:12:21,804 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 19:12:21,804 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 19:12:21,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-25 19:12:21,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-25 19:12:21,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:12:21,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-25 19:12:21,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-25 19:12:21,805 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_disconnect [2021-11-25 19:12:21,805 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_disconnect [2021-11-25 19:12:21,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 19:12:21,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 19:12:21,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-25 19:12:21,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-25 19:12:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2021-11-25 19:12:21,806 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2021-11-25 19:12:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure try_fmt_vid_cap [2021-11-25 19:12:21,806 INFO L138 BoogieDeclarations]: Found implementation of procedure try_fmt_vid_cap [2021-11-25 19:12:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-25 19:12:21,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-25 19:12:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 19:12:21,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 19:12:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-25 19:12:21,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-25 19:12:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-25 19:12:21,808 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-25 19:12:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_usb_lock_of_gspca_dev [2021-11-25 19:12:21,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_usb_lock_of_gspca_dev [2021-11-25 19:12:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-25 19:12:21,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-25 19:12:21,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:12:21,809 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 19:12:21,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 19:12:21,809 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_vm_open [2021-11-25 19:12:21,809 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_vm_open [2021-11-25 19:12:22,679 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:12:22,686 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:12:22,857 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 19:12:27,992 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:12:29,364 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:12:29,364 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 19:12:29,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:12:29 BoogieIcfgContainer [2021-11-25 19:12:29,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:12:29,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:12:29,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:12:29,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:12:29,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:12:15" (1/3) ... [2021-11-25 19:12:29,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d0e1ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:12:29, skipping insertion in model container [2021-11-25 19:12:29,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:12:20" (2/3) ... [2021-11-25 19:12:29,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d0e1ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:12:29, skipping insertion in model container [2021-11-25 19:12:29,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:12:29" (3/3) ... [2021-11-25 19:12:29,378 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i [2021-11-25 19:12:29,383 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:12:29,384 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2021-11-25 19:12:29,442 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:12:29,448 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 19:12:29,449 INFO L340 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2021-11-25 19:12:29,499 INFO L276 IsEmpty]: Start isEmpty. Operand has 1337 states, 828 states have (on average 1.3623188405797102) internal successors, (1128), 878 states have internal predecessors, (1128), 368 states have call successors, (368), 111 states have call predecessors, (368), 110 states have return successors, (364), 357 states have call predecessors, (364), 364 states have call successors, (364) [2021-11-25 19:12:29,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-25 19:12:29,505 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:12:29,506 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] [2021-11-25 19:12:29,507 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:12:29,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:12:29,512 INFO L85 PathProgramCache]: Analyzing trace with hash 794138715, now seen corresponding path program 1 times [2021-11-25 19:12:29,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:12:29,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816601696] [2021-11-25 19:12:29,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:12:29,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:12:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:12:30,111 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:12:30,112 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:12:30,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816601696] [2021-11-25 19:12:30,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816601696] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:12:30,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:12:30,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:12:30,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88150143] [2021-11-25 19:12:30,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:12:30,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:12:30,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:12:30,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:12:30,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:12:30,158 INFO L87 Difference]: Start difference. First operand has 1337 states, 828 states have (on average 1.3623188405797102) internal successors, (1128), 878 states have internal predecessors, (1128), 368 states have call successors, (368), 111 states have call predecessors, (368), 110 states have return successors, (364), 357 states have call predecessors, (364), 364 states have call successors, (364) 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) [2021-11-25 19:12:34,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:37,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:12:37,809 INFO L93 Difference]: Finished difference Result 3860 states and 5657 transitions. [2021-11-25 19:12:37,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:12:37,812 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 [2021-11-25 19:12:37,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:12:37,864 INFO L225 Difference]: With dead ends: 3860 [2021-11-25 19:12:37,864 INFO L226 Difference]: Without dead ends: 2567 [2021-11-25 19:12:37,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:12:37,885 INFO L933 BasicCegarLoop]: 1855 mSDtfsCounter, 1810 mSDsluCounter, 3839 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1812 SdHoareTripleChecker+Valid, 5126 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:12:37,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1812 Valid, 5126 Invalid, 862 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 860 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2021-11-25 19:12:37,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2567 states. [2021-11-25 19:12:38,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2567 to 2505. [2021-11-25 19:12:38,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 1580 states have (on average 1.3348101265822785) internal successors, (2109), 1646 states have internal predecessors, (2109), 679 states have call successors, (679), 217 states have call predecessors, (679), 216 states have return successors, (677), 661 states have call predecessors, (677), 677 states have call successors, (677) [2021-11-25 19:12:38,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3465 transitions. [2021-11-25 19:12:38,237 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3465 transitions. Word has length 36 [2021-11-25 19:12:38,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:12:38,238 INFO L470 AbstractCegarLoop]: Abstraction has 2505 states and 3465 transitions. [2021-11-25 19:12:38,239 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) [2021-11-25 19:12:38,239 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3465 transitions. [2021-11-25 19:12:38,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-25 19:12:38,242 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:12:38,242 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] [2021-11-25 19:12:38,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:12:38,243 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:12:38,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:12:38,247 INFO L85 PathProgramCache]: Analyzing trace with hash -271640885, now seen corresponding path program 1 times [2021-11-25 19:12:38,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:12:38,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708757213] [2021-11-25 19:12:38,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:12:38,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:12:38,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:12:38,624 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:12:38,625 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:12:38,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708757213] [2021-11-25 19:12:38,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708757213] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:12:38,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:12:38,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:12:38,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349722776] [2021-11-25 19:12:38,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:12:38,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:12:38,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:12:38,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:12:38,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:12:38,631 INFO L87 Difference]: Start difference. First operand 2505 states and 3465 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) [2021-11-25 19:12:43,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:46,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:12:46,712 INFO L93 Difference]: Finished difference Result 2567 states and 3498 transitions. [2021-11-25 19:12:46,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:12:46,713 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 [2021-11-25 19:12:46,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:12:46,739 INFO L225 Difference]: With dead ends: 2567 [2021-11-25 19:12:46,739 INFO L226 Difference]: Without dead ends: 2565 [2021-11-25 19:12:46,742 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 [2021-11-25 19:12:46,743 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1792 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1794 SdHoareTripleChecker+Valid, 5085 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:12:46,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1794 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2021-11-25 19:12:46,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2021-11-25 19:12:46,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 2505. [2021-11-25 19:12:46,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 1580 states have (on average 1.3341772151898734) internal successors, (2108), 1646 states have internal predecessors, (2108), 679 states have call successors, (679), 217 states have call predecessors, (679), 216 states have return successors, (677), 661 states have call predecessors, (677), 677 states have call successors, (677) [2021-11-25 19:12:46,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3464 transitions. [2021-11-25 19:12:46,927 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3464 transitions. Word has length 41 [2021-11-25 19:12:46,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:12:46,927 INFO L470 AbstractCegarLoop]: Abstraction has 2505 states and 3464 transitions. [2021-11-25 19:12:46,927 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) [2021-11-25 19:12:46,928 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3464 transitions. [2021-11-25 19:12:46,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-25 19:12:46,930 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:12:46,930 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] [2021-11-25 19:12:46,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:12:46,930 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:12:46,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:12:46,931 INFO L85 PathProgramCache]: Analyzing trace with hash 904313440, now seen corresponding path program 1 times [2021-11-25 19:12:46,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:12:46,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438174906] [2021-11-25 19:12:46,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:12:46,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:12:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:12:47,177 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:12:47,178 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:12:47,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438174906] [2021-11-25 19:12:47,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438174906] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:12:47,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:12:47,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:12:47,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964373194] [2021-11-25 19:12:47,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:12:47,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:12:47,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:12:47,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:12:47,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:12:47,181 INFO L87 Difference]: Start difference. First operand 2505 states and 3464 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) [2021-11-25 19:12:51,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:54,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:12:54,725 INFO L93 Difference]: Finished difference Result 2565 states and 3496 transitions. [2021-11-25 19:12:54,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:12:54,726 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 [2021-11-25 19:12:54,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:12:54,745 INFO L225 Difference]: With dead ends: 2565 [2021-11-25 19:12:54,745 INFO L226 Difference]: Without dead ends: 2563 [2021-11-25 19:12:54,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:12:54,748 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1789 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1791 SdHoareTripleChecker+Valid, 5085 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:12:54,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1791 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2021-11-25 19:12:54,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2021-11-25 19:12:54,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 2505. [2021-11-25 19:12:54,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 1580 states have (on average 1.3335443037974684) internal successors, (2107), 1646 states have internal predecessors, (2107), 679 states have call successors, (679), 217 states have call predecessors, (679), 216 states have return successors, (677), 661 states have call predecessors, (677), 677 states have call successors, (677) [2021-11-25 19:12:54,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3463 transitions. [2021-11-25 19:12:54,957 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3463 transitions. Word has length 46 [2021-11-25 19:12:54,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:12:54,963 INFO L470 AbstractCegarLoop]: Abstraction has 2505 states and 3463 transitions. [2021-11-25 19:12:54,963 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) [2021-11-25 19:12:54,963 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3463 transitions. [2021-11-25 19:12:54,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-25 19:12:54,967 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:12:54,968 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:12:54,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 19:12:54,969 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:12:54,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:12:54,970 INFO L85 PathProgramCache]: Analyzing trace with hash -316352628, now seen corresponding path program 1 times [2021-11-25 19:12:54,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:12:54,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383734838] [2021-11-25 19:12:54,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:12:54,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:12:55,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:12:55,204 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:12:55,204 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:12:55,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383734838] [2021-11-25 19:12:55,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383734838] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:12:55,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:12:55,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:12:55,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864816270] [2021-11-25 19:12:55,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:12:55,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:12:55,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:12:55,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:12:55,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:12:55,207 INFO L87 Difference]: Start difference. First operand 2505 states and 3463 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) [2021-11-25 19:12:59,111 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:01,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:13:01,735 INFO L93 Difference]: Finished difference Result 2563 states and 3494 transitions. [2021-11-25 19:13:01,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:13:01,735 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 [2021-11-25 19:13:01,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:13:01,754 INFO L225 Difference]: With dead ends: 2563 [2021-11-25 19:13:01,754 INFO L226 Difference]: Without dead ends: 2561 [2021-11-25 19:13:01,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:13:01,757 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1786 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1788 SdHoareTripleChecker+Valid, 5085 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:13:01,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1788 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2021-11-25 19:13:01,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-11-25 19:13:01,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 2505. [2021-11-25 19:13:01,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 1580 states have (on average 1.3329113924050633) internal successors, (2106), 1646 states have internal predecessors, (2106), 679 states have call successors, (679), 217 states have call predecessors, (679), 216 states have return successors, (677), 661 states have call predecessors, (677), 677 states have call successors, (677) [2021-11-25 19:13:01,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3462 transitions. [2021-11-25 19:13:01,888 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3462 transitions. Word has length 51 [2021-11-25 19:13:01,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:13:01,888 INFO L470 AbstractCegarLoop]: Abstraction has 2505 states and 3462 transitions. [2021-11-25 19:13:01,889 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) [2021-11-25 19:13:01,889 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3462 transitions. [2021-11-25 19:13:01,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-25 19:13:01,891 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:13:01,891 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] [2021-11-25 19:13:01,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 19:13:01,891 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:13:01,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:13:01,892 INFO L85 PathProgramCache]: Analyzing trace with hash -502390806, now seen corresponding path program 1 times [2021-11-25 19:13:01,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:13:01,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284662896] [2021-11-25 19:13:01,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:13:01,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:13:01,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:13:02,089 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:13:02,089 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:13:02,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284662896] [2021-11-25 19:13:02,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284662896] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:13:02,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:13:02,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:13:02,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262603919] [2021-11-25 19:13:02,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:13:02,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:13:02,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:13:02,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:13:02,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:13:02,092 INFO L87 Difference]: Start difference. First operand 2505 states and 3462 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) [2021-11-25 19:13:05,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:07,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:13:07,726 INFO L93 Difference]: Finished difference Result 2561 states and 3492 transitions. [2021-11-25 19:13:07,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:13:07,727 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 [2021-11-25 19:13:07,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:13:07,743 INFO L225 Difference]: With dead ends: 2561 [2021-11-25 19:13:07,743 INFO L226 Difference]: Without dead ends: 2559 [2021-11-25 19:13:07,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:13:07,745 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1783 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1785 SdHoareTripleChecker+Valid, 5085 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:13:07,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1785 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2021-11-25 19:13:07,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2559 states. [2021-11-25 19:13:07,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 2505. [2021-11-25 19:13:07,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 1580 states have (on average 1.3322784810126582) internal successors, (2105), 1646 states have internal predecessors, (2105), 679 states have call successors, (679), 217 states have call predecessors, (679), 216 states have return successors, (677), 661 states have call predecessors, (677), 677 states have call successors, (677) [2021-11-25 19:13:07,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3461 transitions. [2021-11-25 19:13:07,867 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3461 transitions. Word has length 56 [2021-11-25 19:13:07,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:13:07,867 INFO L470 AbstractCegarLoop]: Abstraction has 2505 states and 3461 transitions. [2021-11-25 19:13:07,868 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) [2021-11-25 19:13:07,868 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3461 transitions. [2021-11-25 19:13:07,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-25 19:13:07,869 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:13:07,870 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] [2021-11-25 19:13:07,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 19:13:07,870 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:13:07,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:13:07,871 INFO L85 PathProgramCache]: Analyzing trace with hash 822096228, now seen corresponding path program 1 times [2021-11-25 19:13:07,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:13:07,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226605250] [2021-11-25 19:13:07,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:13:07,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:13:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:13:08,143 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:13:08,143 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:13:08,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226605250] [2021-11-25 19:13:08,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226605250] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:13:08,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:13:08,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:13:08,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096422126] [2021-11-25 19:13:08,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:13:08,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:13:08,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:13:08,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:13:08,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:13:08,147 INFO L87 Difference]: Start difference. First operand 2505 states and 3461 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) [2021-11-25 19:13:12,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:14,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:13:14,543 INFO L93 Difference]: Finished difference Result 2559 states and 3490 transitions. [2021-11-25 19:13:14,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:13:14,544 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 [2021-11-25 19:13:14,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:13:14,560 INFO L225 Difference]: With dead ends: 2559 [2021-11-25 19:13:14,560 INFO L226 Difference]: Without dead ends: 2557 [2021-11-25 19:13:14,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:13:14,564 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1780 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1782 SdHoareTripleChecker+Valid, 5085 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:13:14,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1782 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2021-11-25 19:13:14,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2557 states. [2021-11-25 19:13:14,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2557 to 2505. [2021-11-25 19:13:14,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 1580 states have (on average 1.3316455696202532) internal successors, (2104), 1646 states have internal predecessors, (2104), 679 states have call successors, (679), 217 states have call predecessors, (679), 216 states have return successors, (677), 661 states have call predecessors, (677), 677 states have call successors, (677) [2021-11-25 19:13:14,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3460 transitions. [2021-11-25 19:13:14,690 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3460 transitions. Word has length 61 [2021-11-25 19:13:14,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:13:14,691 INFO L470 AbstractCegarLoop]: Abstraction has 2505 states and 3460 transitions. [2021-11-25 19:13:14,691 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) [2021-11-25 19:13:14,691 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3460 transitions. [2021-11-25 19:13:14,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-25 19:13:14,693 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:13:14,693 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] [2021-11-25 19:13:14,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 19:13:14,693 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:13:14,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:13:14,694 INFO L85 PathProgramCache]: Analyzing trace with hash -396708520, now seen corresponding path program 1 times [2021-11-25 19:13:14,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:13:14,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625090880] [2021-11-25 19:13:14,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:13:14,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:13:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:13:14,897 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:13:14,897 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:13:14,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625090880] [2021-11-25 19:13:14,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625090880] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:13:14,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:13:14,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:13:14,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866521929] [2021-11-25 19:13:14,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:13:14,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:13:14,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:13:14,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:13:14,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:13:14,909 INFO L87 Difference]: Start difference. First operand 2505 states and 3460 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) [2021-11-25 19:13:19,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:21,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:13:21,395 INFO L93 Difference]: Finished difference Result 2557 states and 3488 transitions. [2021-11-25 19:13:21,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:13:21,396 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 [2021-11-25 19:13:21,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:13:21,411 INFO L225 Difference]: With dead ends: 2557 [2021-11-25 19:13:21,411 INFO L226 Difference]: Without dead ends: 2555 [2021-11-25 19:13:21,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:13:21,413 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1777 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1779 SdHoareTripleChecker+Valid, 5085 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:13:21,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1779 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2021-11-25 19:13:21,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2555 states. [2021-11-25 19:13:21,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2555 to 2505. [2021-11-25 19:13:21,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 1580 states have (on average 1.331012658227848) internal successors, (2103), 1646 states have internal predecessors, (2103), 679 states have call successors, (679), 217 states have call predecessors, (679), 216 states have return successors, (677), 661 states have call predecessors, (677), 677 states have call successors, (677) [2021-11-25 19:13:21,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3459 transitions. [2021-11-25 19:13:21,537 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3459 transitions. Word has length 66 [2021-11-25 19:13:21,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:13:21,538 INFO L470 AbstractCegarLoop]: Abstraction has 2505 states and 3459 transitions. [2021-11-25 19:13:21,538 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) [2021-11-25 19:13:21,538 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3459 transitions. [2021-11-25 19:13:21,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-25 19:13:21,539 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:13:21,539 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] [2021-11-25 19:13:21,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 19:13:21,540 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:13:21,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:13:21,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1516058044, now seen corresponding path program 1 times [2021-11-25 19:13:21,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:13:21,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150104398] [2021-11-25 19:13:21,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:13:21,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:13:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:13:21,719 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:13:21,719 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:13:21,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150104398] [2021-11-25 19:13:21,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150104398] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:13:21,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:13:21,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:13:21,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220783824] [2021-11-25 19:13:21,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:13:21,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:13:21,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:13:21,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:13:21,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:13:21,722 INFO L87 Difference]: Start difference. First operand 2505 states and 3459 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) [2021-11-25 19:13:25,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:28,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:13:28,686 INFO L93 Difference]: Finished difference Result 2555 states and 3486 transitions. [2021-11-25 19:13:28,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:13:28,687 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 [2021-11-25 19:13:28,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:13:28,702 INFO L225 Difference]: With dead ends: 2555 [2021-11-25 19:13:28,702 INFO L226 Difference]: Without dead ends: 2553 [2021-11-25 19:13:28,704 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 [2021-11-25 19:13:28,705 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1782 mSDsluCounter, 3807 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1784 SdHoareTripleChecker+Valid, 5081 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:13:28,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1784 Valid, 5081 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2021-11-25 19:13:28,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2553 states. [2021-11-25 19:13:28,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2553 to 2505. [2021-11-25 19:13:28,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 1580 states have (on average 1.330379746835443) internal successors, (2102), 1646 states have internal predecessors, (2102), 679 states have call successors, (679), 217 states have call predecessors, (679), 216 states have return successors, (677), 661 states have call predecessors, (677), 677 states have call successors, (677) [2021-11-25 19:13:28,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3458 transitions. [2021-11-25 19:13:28,829 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3458 transitions. Word has length 71 [2021-11-25 19:13:28,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:13:28,830 INFO L470 AbstractCegarLoop]: Abstraction has 2505 states and 3458 transitions. [2021-11-25 19:13:28,830 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) [2021-11-25 19:13:28,830 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3458 transitions. [2021-11-25 19:13:28,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-25 19:13:28,831 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:13:28,832 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] [2021-11-25 19:13:28,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 19:13:28,832 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:13:28,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:13:28,833 INFO L85 PathProgramCache]: Analyzing trace with hash 938028287, now seen corresponding path program 1 times [2021-11-25 19:13:28,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:13:28,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699618528] [2021-11-25 19:13:28,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:13:28,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:13:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:13:29,032 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:13:29,032 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:13:29,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699618528] [2021-11-25 19:13:29,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699618528] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:13:29,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:13:29,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:13:29,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774335616] [2021-11-25 19:13:29,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:13:29,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:13:29,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:13:29,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:13:29,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:13:29,036 INFO L87 Difference]: Start difference. First operand 2505 states and 3458 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) [2021-11-25 19:13:32,743 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:34,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:13:34,451 INFO L93 Difference]: Finished difference Result 2553 states and 3484 transitions. [2021-11-25 19:13:34,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:13:34,452 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 [2021-11-25 19:13:34,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:13:34,468 INFO L225 Difference]: With dead ends: 2553 [2021-11-25 19:13:34,468 INFO L226 Difference]: Without dead ends: 2551 [2021-11-25 19:13:34,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:13:34,470 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1770 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1772 SdHoareTripleChecker+Valid, 5085 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:13:34,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1772 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2021-11-25 19:13:34,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2551 states. [2021-11-25 19:13:34,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2551 to 2505. [2021-11-25 19:13:34,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 1580 states have (on average 1.329746835443038) internal successors, (2101), 1646 states have internal predecessors, (2101), 679 states have call successors, (679), 217 states have call predecessors, (679), 216 states have return successors, (677), 661 states have call predecessors, (677), 677 states have call successors, (677) [2021-11-25 19:13:34,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3457 transitions. [2021-11-25 19:13:34,592 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3457 transitions. Word has length 73 [2021-11-25 19:13:34,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:13:34,593 INFO L470 AbstractCegarLoop]: Abstraction has 2505 states and 3457 transitions. [2021-11-25 19:13:34,593 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) [2021-11-25 19:13:34,593 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3457 transitions. [2021-11-25 19:13:34,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-25 19:13:34,595 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:13:34,598 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] [2021-11-25 19:13:34,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 19:13:34,598 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:13:34,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:13:34,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1826161332, now seen corresponding path program 1 times [2021-11-25 19:13:34,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:13:34,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121651615] [2021-11-25 19:13:34,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:13:34,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:13:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:13:34,751 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:13:34,751 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:13:34,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121651615] [2021-11-25 19:13:34,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121651615] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:13:34,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:13:34,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:13:34,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504509762] [2021-11-25 19:13:34,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:13:34,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:13:34,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:13:34,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:13:34,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:13:34,753 INFO L87 Difference]: Start difference. First operand 2505 states and 3457 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) [2021-11-25 19:13:38,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:42,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:13:42,838 INFO L93 Difference]: Finished difference Result 3731 states and 5169 transitions. [2021-11-25 19:13:42,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:13:42,838 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 [2021-11-25 19:13:42,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:13:42,864 INFO L225 Difference]: With dead ends: 3731 [2021-11-25 19:13:42,865 INFO L226 Difference]: Without dead ends: 3729 [2021-11-25 19:13:42,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:13:42,867 INFO L933 BasicCegarLoop]: 2743 mSDtfsCounter, 1767 mSDsluCounter, 4997 mSDsCounter, 0 mSdLazyCounter, 1349 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1769 SdHoareTripleChecker+Valid, 6933 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1349 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:13:42,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1769 Valid, 6933 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1349 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2021-11-25 19:13:42,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3729 states. [2021-11-25 19:13:43,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3729 to 3627. [2021-11-25 19:13:43,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3627 states, 2302 states have (on average 1.3314509122502172) internal successors, (3065), 2388 states have internal predecessors, (3065), 983 states have call successors, (983), 313 states have call predecessors, (983), 312 states have return successors, (1025), 955 states have call predecessors, (1025), 981 states have call successors, (1025) [2021-11-25 19:13:43,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3627 states to 3627 states and 5073 transitions. [2021-11-25 19:13:43,117 INFO L78 Accepts]: Start accepts. Automaton has 3627 states and 5073 transitions. Word has length 78 [2021-11-25 19:13:43,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:13:43,118 INFO L470 AbstractCegarLoop]: Abstraction has 3627 states and 5073 transitions. [2021-11-25 19:13:43,118 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) [2021-11-25 19:13:43,118 INFO L276 IsEmpty]: Start isEmpty. Operand 3627 states and 5073 transitions. [2021-11-25 19:13:43,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-25 19:13:43,120 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:13:43,120 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] [2021-11-25 19:13:43,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 19:13:43,121 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:13:43,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:13:43,121 INFO L85 PathProgramCache]: Analyzing trace with hash 411212699, now seen corresponding path program 1 times [2021-11-25 19:13:43,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:13:43,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072269932] [2021-11-25 19:13:43,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:13:43,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:13:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:13:43,281 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:13:43,281 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:13:43,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072269932] [2021-11-25 19:13:43,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072269932] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:13:43,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:13:43,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:13:43,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180649724] [2021-11-25 19:13:43,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:13:43,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:13:43,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:13:43,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:13:43,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:13:43,284 INFO L87 Difference]: Start difference. First operand 3627 states and 5073 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) [2021-11-25 19:13:46,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:49,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:13:49,898 INFO L93 Difference]: Finished difference Result 3728 states and 5164 transitions. [2021-11-25 19:13:49,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:13:49,899 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 [2021-11-25 19:13:49,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:13:49,922 INFO L225 Difference]: With dead ends: 3728 [2021-11-25 19:13:49,922 INFO L226 Difference]: Without dead ends: 3726 [2021-11-25 19:13:49,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:13:49,925 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1768 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1770 SdHoareTripleChecker+Valid, 5085 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:13:49,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1770 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2021-11-25 19:13:49,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3726 states. [2021-11-25 19:13:50,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3726 to 3637. [2021-11-25 19:13:50,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3637 states, 2308 states have (on average 1.3305892547660312) internal successors, (3071), 2394 states have internal predecessors, (3071), 985 states have call successors, (985), 315 states have call predecessors, (985), 314 states have return successors, (1027), 957 states have call predecessors, (1027), 983 states have call successors, (1027) [2021-11-25 19:13:50,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3637 states to 3637 states and 5083 transitions. [2021-11-25 19:13:50,129 INFO L78 Accepts]: Start accepts. Automaton has 3637 states and 5083 transitions. Word has length 83 [2021-11-25 19:13:50,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:13:50,129 INFO L470 AbstractCegarLoop]: Abstraction has 3637 states and 5083 transitions. [2021-11-25 19:13:50,129 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) [2021-11-25 19:13:50,130 INFO L276 IsEmpty]: Start isEmpty. Operand 3637 states and 5083 transitions. [2021-11-25 19:13:50,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-25 19:13:50,131 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:13:50,131 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] [2021-11-25 19:13:50,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 19:13:50,132 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:13:50,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:13:50,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1179946527, now seen corresponding path program 1 times [2021-11-25 19:13:50,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:13:50,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953115785] [2021-11-25 19:13:50,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:13:50,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:13:50,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:13:50,298 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:13:50,298 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:13:50,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953115785] [2021-11-25 19:13:50,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953115785] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:13:50,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:13:50,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:13:50,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767038097] [2021-11-25 19:13:50,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:13:50,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:13:50,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:13:50,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:13:50,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:13:50,300 INFO L87 Difference]: Start difference. First operand 3637 states and 5083 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) [2021-11-25 19:13:53,585 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:56,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:13:56,264 INFO L93 Difference]: Finished difference Result 3726 states and 5161 transitions. [2021-11-25 19:13:56,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:13:56,264 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 [2021-11-25 19:13:56,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:13:56,297 INFO L225 Difference]: With dead ends: 3726 [2021-11-25 19:13:56,297 INFO L226 Difference]: Without dead ends: 3724 [2021-11-25 19:13:56,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:13:56,301 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1765 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1767 SdHoareTripleChecker+Valid, 5085 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:13:56,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1767 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2021-11-25 19:13:56,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3724 states. [2021-11-25 19:13:56,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3724 to 3642. [2021-11-25 19:13:56,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3642 states, 2311 states have (on average 1.3297273907399394) internal successors, (3073), 2397 states have internal predecessors, (3073), 986 states have call successors, (986), 316 states have call predecessors, (986), 315 states have return successors, (1028), 958 states have call predecessors, (1028), 984 states have call successors, (1028) [2021-11-25 19:13:56,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3642 states to 3642 states and 5087 transitions. [2021-11-25 19:13:56,513 INFO L78 Accepts]: Start accepts. Automaton has 3642 states and 5087 transitions. Word has length 88 [2021-11-25 19:13:56,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:13:56,514 INFO L470 AbstractCegarLoop]: Abstraction has 3642 states and 5087 transitions. [2021-11-25 19:13:56,514 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) [2021-11-25 19:13:56,514 INFO L276 IsEmpty]: Start isEmpty. Operand 3642 states and 5087 transitions. [2021-11-25 19:13:56,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-25 19:13:56,516 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:13:56,516 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] [2021-11-25 19:13:56,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 19:13:56,516 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:13:56,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:13:56,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1318290452, now seen corresponding path program 1 times [2021-11-25 19:13:56,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:13:56,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131971758] [2021-11-25 19:13:56,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:13:56,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:13:56,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:13:56,686 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:13:56,686 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:13:56,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131971758] [2021-11-25 19:13:56,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131971758] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:13:56,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:13:56,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:13:56,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315354758] [2021-11-25 19:13:56,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:13:56,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:13:56,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:13:56,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:13:56,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:13:56,688 INFO L87 Difference]: Start difference. First operand 3642 states and 5087 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) [2021-11-25 19:13:59,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:02,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:14:02,292 INFO L93 Difference]: Finished difference Result 3724 states and 5158 transitions. [2021-11-25 19:14:02,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:14:02,292 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 [2021-11-25 19:14:02,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:14:02,305 INFO L225 Difference]: With dead ends: 3724 [2021-11-25 19:14:02,305 INFO L226 Difference]: Without dead ends: 3722 [2021-11-25 19:14:02,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:14:02,308 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1762 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1764 SdHoareTripleChecker+Valid, 5085 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:14:02,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1764 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2021-11-25 19:14:02,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3722 states. [2021-11-25 19:14:02,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3722 to 3647. [2021-11-25 19:14:02,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3647 states, 2314 states have (on average 1.328867761452031) internal successors, (3075), 2400 states have internal predecessors, (3075), 987 states have call successors, (987), 317 states have call predecessors, (987), 316 states have return successors, (1029), 959 states have call predecessors, (1029), 985 states have call successors, (1029) [2021-11-25 19:14:02,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3647 states to 3647 states and 5091 transitions. [2021-11-25 19:14:02,510 INFO L78 Accepts]: Start accepts. Automaton has 3647 states and 5091 transitions. Word has length 93 [2021-11-25 19:14:02,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:14:02,513 INFO L470 AbstractCegarLoop]: Abstraction has 3647 states and 5091 transitions. [2021-11-25 19:14:02,513 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) [2021-11-25 19:14:02,513 INFO L276 IsEmpty]: Start isEmpty. Operand 3647 states and 5091 transitions. [2021-11-25 19:14:02,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-25 19:14:02,515 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:14:02,515 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:14:02,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-25 19:14:02,516 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:14:02,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:14:02,516 INFO L85 PathProgramCache]: Analyzing trace with hash 2025876837, now seen corresponding path program 1 times [2021-11-25 19:14:02,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:14:02,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613507495] [2021-11-25 19:14:02,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:14:02,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:14:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:14:02,679 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:14:02,679 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:14:02,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613507495] [2021-11-25 19:14:02,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613507495] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:14:02,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:14:02,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:14:02,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489376350] [2021-11-25 19:14:02,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:14:02,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:14:02,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:14:02,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:14:02,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:14:02,682 INFO L87 Difference]: Start difference. First operand 3647 states and 5091 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) [2021-11-25 19:14:05,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:07,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:14:07,969 INFO L93 Difference]: Finished difference Result 3722 states and 5155 transitions. [2021-11-25 19:14:07,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:14:07,970 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 [2021-11-25 19:14:07,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:14:07,980 INFO L225 Difference]: With dead ends: 3722 [2021-11-25 19:14:07,980 INFO L226 Difference]: Without dead ends: 3720 [2021-11-25 19:14:07,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:14:07,982 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1759 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1761 SdHoareTripleChecker+Valid, 5085 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:14:07,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1761 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2021-11-25 19:14:07,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3720 states. [2021-11-25 19:14:08,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3720 to 3652. [2021-11-25 19:14:08,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 2317 states have (on average 1.3280103582218385) internal successors, (3077), 2403 states have internal predecessors, (3077), 988 states have call successors, (988), 318 states have call predecessors, (988), 317 states have return successors, (1030), 960 states have call predecessors, (1030), 986 states have call successors, (1030) [2021-11-25 19:14:08,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 5095 transitions. [2021-11-25 19:14:08,189 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 5095 transitions. Word has length 98 [2021-11-25 19:14:08,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:14:08,189 INFO L470 AbstractCegarLoop]: Abstraction has 3652 states and 5095 transitions. [2021-11-25 19:14:08,190 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) [2021-11-25 19:14:08,190 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 5095 transitions. [2021-11-25 19:14:08,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-25 19:14:08,191 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:14:08,192 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] [2021-11-25 19:14:08,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-25 19:14:08,192 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:14:08,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:14:08,192 INFO L85 PathProgramCache]: Analyzing trace with hash 744733062, now seen corresponding path program 1 times [2021-11-25 19:14:08,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:14:08,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188642404] [2021-11-25 19:14:08,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:14:08,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:14:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:14:08,361 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:14:08,361 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:14:08,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188642404] [2021-11-25 19:14:08,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188642404] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:14:08,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:14:08,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:14:08,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938245434] [2021-11-25 19:14:08,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:14:08,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:14:08,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:14:08,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:14:08,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:14:08,363 INFO L87 Difference]: Start difference. First operand 3652 states and 5095 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) [2021-11-25 19:14:11,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:15,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:14:15,190 INFO L93 Difference]: Finished difference Result 3720 states and 5152 transitions. [2021-11-25 19:14:15,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:14:15,191 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 [2021-11-25 19:14:15,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:14:15,203 INFO L225 Difference]: With dead ends: 3720 [2021-11-25 19:14:15,204 INFO L226 Difference]: Without dead ends: 3718 [2021-11-25 19:14:15,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:14:15,207 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1756 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1758 SdHoareTripleChecker+Valid, 5085 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:14:15,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1758 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2021-11-25 19:14:15,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3718 states. [2021-11-25 19:14:15,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3718 to 3657. [2021-11-25 19:14:15,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3657 states, 2320 states have (on average 1.327155172413793) internal successors, (3079), 2406 states have internal predecessors, (3079), 989 states have call successors, (989), 319 states have call predecessors, (989), 318 states have return successors, (1031), 961 states have call predecessors, (1031), 987 states have call successors, (1031) [2021-11-25 19:14:15,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3657 states to 3657 states and 5099 transitions. [2021-11-25 19:14:15,459 INFO L78 Accepts]: Start accepts. Automaton has 3657 states and 5099 transitions. Word has length 103 [2021-11-25 19:14:15,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:14:15,459 INFO L470 AbstractCegarLoop]: Abstraction has 3657 states and 5099 transitions. [2021-11-25 19:14:15,460 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) [2021-11-25 19:14:15,460 INFO L276 IsEmpty]: Start isEmpty. Operand 3657 states and 5099 transitions. [2021-11-25 19:14:15,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-25 19:14:15,461 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:14:15,462 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] [2021-11-25 19:14:15,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-25 19:14:15,462 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:14:15,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:14:15,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1795991381, now seen corresponding path program 1 times [2021-11-25 19:14:15,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:14:15,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893345538] [2021-11-25 19:14:15,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:14:15,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:14:15,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:14:15,630 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:14:15,630 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:14:15,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893345538] [2021-11-25 19:14:15,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893345538] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:14:15,633 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:14:15,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:14:15,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898730277] [2021-11-25 19:14:15,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:14:15,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:14:15,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:14:15,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:14:15,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:14:15,635 INFO L87 Difference]: Start difference. First operand 3657 states and 5099 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) [2021-11-25 19:14:18,785 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:22,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:14:22,049 INFO L93 Difference]: Finished difference Result 3718 states and 5149 transitions. [2021-11-25 19:14:22,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:14:22,050 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 [2021-11-25 19:14:22,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:14:22,063 INFO L225 Difference]: With dead ends: 3718 [2021-11-25 19:14:22,064 INFO L226 Difference]: Without dead ends: 3716 [2021-11-25 19:14:22,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:14:22,067 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1753 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1755 SdHoareTripleChecker+Valid, 5085 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:14:22,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1755 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2021-11-25 19:14:22,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3716 states. [2021-11-25 19:14:22,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3716 to 3662. [2021-11-25 19:14:22,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3662 states, 2323 states have (on average 1.326302195436935) internal successors, (3081), 2409 states have internal predecessors, (3081), 990 states have call successors, (990), 320 states have call predecessors, (990), 319 states have return successors, (1032), 962 states have call predecessors, (1032), 988 states have call successors, (1032) [2021-11-25 19:14:22,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3662 states to 3662 states and 5103 transitions. [2021-11-25 19:14:22,338 INFO L78 Accepts]: Start accepts. Automaton has 3662 states and 5103 transitions. Word has length 108 [2021-11-25 19:14:22,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:14:22,338 INFO L470 AbstractCegarLoop]: Abstraction has 3662 states and 5103 transitions. [2021-11-25 19:14:22,339 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) [2021-11-25 19:14:22,339 INFO L276 IsEmpty]: Start isEmpty. Operand 3662 states and 5103 transitions. [2021-11-25 19:14:22,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-25 19:14:22,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:14:22,341 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] [2021-11-25 19:14:22,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-25 19:14:22,341 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:14:22,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:14:22,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1007986358, now seen corresponding path program 1 times [2021-11-25 19:14:22,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:14:22,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132964972] [2021-11-25 19:14:22,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:14:22,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:14:22,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:14:22,513 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:14:22,513 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:14:22,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132964972] [2021-11-25 19:14:22,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132964972] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:14:22,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:14:22,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:14:22,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978913078] [2021-11-25 19:14:22,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:14:22,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:14:22,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:14:22,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:14:22,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:14:22,516 INFO L87 Difference]: Start difference. First operand 3662 states and 5103 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) [2021-11-25 19:14:25,828 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:29,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:14:29,031 INFO L93 Difference]: Finished difference Result 3716 states and 5146 transitions. [2021-11-25 19:14:29,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:14:29,032 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 [2021-11-25 19:14:29,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:14:29,044 INFO L225 Difference]: With dead ends: 3716 [2021-11-25 19:14:29,044 INFO L226 Difference]: Without dead ends: 3714 [2021-11-25 19:14:29,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:14:29,048 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1750 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1752 SdHoareTripleChecker+Valid, 5085 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:14:29,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1752 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2021-11-25 19:14:29,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3714 states. [2021-11-25 19:14:29,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3714 to 3667. [2021-11-25 19:14:29,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3667 states, 2326 states have (on average 1.325451418744626) internal successors, (3083), 2412 states have internal predecessors, (3083), 991 states have call successors, (991), 321 states have call predecessors, (991), 320 states have return successors, (1033), 963 states have call predecessors, (1033), 989 states have call successors, (1033) [2021-11-25 19:14:29,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3667 states to 3667 states and 5107 transitions. [2021-11-25 19:14:29,337 INFO L78 Accepts]: Start accepts. Automaton has 3667 states and 5107 transitions. Word has length 113 [2021-11-25 19:14:29,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:14:29,337 INFO L470 AbstractCegarLoop]: Abstraction has 3667 states and 5107 transitions. [2021-11-25 19:14:29,337 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) [2021-11-25 19:14:29,338 INFO L276 IsEmpty]: Start isEmpty. Operand 3667 states and 5107 transitions. [2021-11-25 19:14:29,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-25 19:14:29,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:14:29,340 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] [2021-11-25 19:14:29,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-25 19:14:29,341 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:14:29,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:14:29,341 INFO L85 PathProgramCache]: Analyzing trace with hash -2030243096, now seen corresponding path program 1 times [2021-11-25 19:14:29,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:14:29,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640840584] [2021-11-25 19:14:29,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:14:29,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:14:29,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:14:29,504 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:14:29,504 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:14:29,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640840584] [2021-11-25 19:14:29,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640840584] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:14:29,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:14:29,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:14:29,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560063817] [2021-11-25 19:14:29,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:14:29,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:14:29,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:14:29,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:14:29,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:14:29,507 INFO L87 Difference]: Start difference. First operand 3667 states and 5107 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) [2021-11-25 19:14:32,733 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:36,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:14:36,285 INFO L93 Difference]: Finished difference Result 3714 states and 5143 transitions. [2021-11-25 19:14:36,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:14:36,286 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 [2021-11-25 19:14:36,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:14:36,305 INFO L225 Difference]: With dead ends: 3714 [2021-11-25 19:14:36,305 INFO L226 Difference]: Without dead ends: 3712 [2021-11-25 19:14:36,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:14:36,310 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1747 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1749 SdHoareTripleChecker+Valid, 5085 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:14:36,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1749 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2021-11-25 19:14:36,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3712 states. [2021-11-25 19:14:36,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3712 to 3672. [2021-11-25 19:14:36,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3672 states, 2329 states have (on average 1.3246028338342637) internal successors, (3085), 2415 states have internal predecessors, (3085), 992 states have call successors, (992), 322 states have call predecessors, (992), 321 states have return successors, (1034), 964 states have call predecessors, (1034), 990 states have call successors, (1034) [2021-11-25 19:14:36,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3672 states to 3672 states and 5111 transitions. [2021-11-25 19:14:36,604 INFO L78 Accepts]: Start accepts. Automaton has 3672 states and 5111 transitions. Word has length 118 [2021-11-25 19:14:36,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:14:36,605 INFO L470 AbstractCegarLoop]: Abstraction has 3672 states and 5111 transitions. [2021-11-25 19:14:36,605 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) [2021-11-25 19:14:36,605 INFO L276 IsEmpty]: Start isEmpty. Operand 3672 states and 5111 transitions. [2021-11-25 19:14:36,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-25 19:14:36,607 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:14:36,607 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] [2021-11-25 19:14:36,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-25 19:14:36,608 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:14:36,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:14:36,609 INFO L85 PathProgramCache]: Analyzing trace with hash -791045974, now seen corresponding path program 1 times [2021-11-25 19:14:36,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:14:36,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882313244] [2021-11-25 19:14:36,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:14:36,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:14:36,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:14:36,772 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:14:36,772 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:14:36,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882313244] [2021-11-25 19:14:36,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882313244] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:14:36,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:14:36,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:14:36,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388192481] [2021-11-25 19:14:36,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:14:36,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:14:36,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:14:36,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:14:36,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:14:36,776 INFO L87 Difference]: Start difference. First operand 3672 states and 5111 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) [2021-11-25 19:14:40,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:44,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:14:44,906 INFO L93 Difference]: Finished difference Result 5987 states and 8475 transitions. [2021-11-25 19:14:44,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:14:44,907 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 [2021-11-25 19:14:44,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:14:44,926 INFO L225 Difference]: With dead ends: 5987 [2021-11-25 19:14:44,926 INFO L226 Difference]: Without dead ends: 5985 [2021-11-25 19:14:44,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:14:44,929 INFO L933 BasicCegarLoop]: 1891 mSDtfsCounter, 1687 mSDsluCounter, 3935 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1689 SdHoareTripleChecker+Valid, 5239 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:14:44,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1689 Valid, 5239 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 910 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2021-11-25 19:14:44,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5985 states. [2021-11-25 19:14:45,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5985 to 5896. [2021-11-25 19:14:45,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5896 states, 3763 states have (on average 1.32713260696253) internal successors, (4994), 3892 states have internal predecessors, (4994), 1583 states have call successors, (1583), 523 states have call predecessors, (1583), 520 states have return successors, (1813), 1530 states have call predecessors, (1813), 1581 states have call successors, (1813) [2021-11-25 19:14:45,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5896 states to 5896 states and 8390 transitions. [2021-11-25 19:14:45,378 INFO L78 Accepts]: Start accepts. Automaton has 5896 states and 8390 transitions. Word has length 123 [2021-11-25 19:14:45,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:14:45,378 INFO L470 AbstractCegarLoop]: Abstraction has 5896 states and 8390 transitions. [2021-11-25 19:14:45,379 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) [2021-11-25 19:14:45,379 INFO L276 IsEmpty]: Start isEmpty. Operand 5896 states and 8390 transitions. [2021-11-25 19:14:45,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-25 19:14:45,381 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:14:45,381 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] [2021-11-25 19:14:45,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-25 19:14:45,381 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:14:45,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:14:45,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1208317547, now seen corresponding path program 1 times [2021-11-25 19:14:45,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:14:45,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582273144] [2021-11-25 19:14:45,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:14:45,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:14:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:14:45,586 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:14:45,586 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:14:45,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582273144] [2021-11-25 19:14:45,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582273144] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:14:45,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:14:45,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:14:45,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191065054] [2021-11-25 19:14:45,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:14:45,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:14:45,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:14:45,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:14:45,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:14:45,590 INFO L87 Difference]: Start difference. First operand 5896 states and 8390 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) [2021-11-25 19:14:49,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:52,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:14:52,189 INFO L93 Difference]: Finished difference Result 5936 states and 8419 transitions. [2021-11-25 19:14:52,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:14:52,190 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 [2021-11-25 19:14:52,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:14:52,212 INFO L225 Difference]: With dead ends: 5936 [2021-11-25 19:14:52,212 INFO L226 Difference]: Without dead ends: 5934 [2021-11-25 19:14:52,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:14:52,217 INFO L933 BasicCegarLoop]: 1842 mSDtfsCounter, 1743 mSDsluCounter, 3813 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1745 SdHoareTripleChecker+Valid, 5089 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:14:52,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1745 Valid, 5089 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2021-11-25 19:14:52,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5934 states. [2021-11-25 19:14:52,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5934 to 5906. [2021-11-25 19:14:52,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5906 states, 3769 states have (on average 1.3266118333775536) internal successors, (5000), 3898 states have internal predecessors, (5000), 1585 states have call successors, (1585), 525 states have call predecessors, (1585), 522 states have return successors, (1815), 1532 states have call predecessors, (1815), 1583 states have call successors, (1815) [2021-11-25 19:14:52,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5906 states to 5906 states and 8400 transitions. [2021-11-25 19:14:52,716 INFO L78 Accepts]: Start accepts. Automaton has 5906 states and 8400 transitions. Word has length 128 [2021-11-25 19:14:52,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:14:52,717 INFO L470 AbstractCegarLoop]: Abstraction has 5906 states and 8400 transitions. [2021-11-25 19:14:52,717 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) [2021-11-25 19:14:52,717 INFO L276 IsEmpty]: Start isEmpty. Operand 5906 states and 8400 transitions. [2021-11-25 19:14:52,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-25 19:14:52,719 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:14:52,720 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] [2021-11-25 19:14:52,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-25 19:14:52,720 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:14:52,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:14:52,721 INFO L85 PathProgramCache]: Analyzing trace with hash 714053222, now seen corresponding path program 1 times [2021-11-25 19:14:52,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:14:52,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634700215] [2021-11-25 19:14:52,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:14:52,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:14:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:14:52,884 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:14:52,884 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:14:52,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634700215] [2021-11-25 19:14:52,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634700215] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:14:52,885 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:14:52,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:14:52,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986820300] [2021-11-25 19:14:52,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:14:52,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:14:52,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:14:52,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:14:52,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:14:52,887 INFO L87 Difference]: Start difference. First operand 5906 states and 8400 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) [2021-11-25 19:14:56,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:59,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:15:01,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:15:01,623 INFO L93 Difference]: Finished difference Result 10349 states and 15176 transitions. [2021-11-25 19:15:01,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:15:01,624 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 [2021-11-25 19:15:01,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:15:01,670 INFO L225 Difference]: With dead ends: 10349 [2021-11-25 19:15:01,670 INFO L226 Difference]: Without dead ends: 10139 [2021-11-25 19:15:01,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:15:01,678 INFO L933 BasicCegarLoop]: 1870 mSDtfsCounter, 1645 mSDsluCounter, 3911 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1645 SdHoareTripleChecker+Valid, 5197 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:15:01,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1645 Valid, 5197 Invalid, 905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 903 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2021-11-25 19:15:01,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10139 states. [2021-11-25 19:15:02,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10139 to 10054. [2021-11-25 19:15:02,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10054 states, 6486 states have (on average 1.3341042244835029) internal successors, (8653), 6697 states have internal predecessors, (8653), 2652 states have call successors, (2652), 895 states have call predecessors, (2652), 886 states have return successors, (3535), 2551 states have call predecessors, (3535), 2649 states have call successors, (3535) [2021-11-25 19:15:02,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10054 states to 10054 states and 14840 transitions. [2021-11-25 19:15:02,556 INFO L78 Accepts]: Start accepts. Automaton has 10054 states and 14840 transitions. Word has length 133 [2021-11-25 19:15:02,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:15:02,556 INFO L470 AbstractCegarLoop]: Abstraction has 10054 states and 14840 transitions. [2021-11-25 19:15:02,557 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) [2021-11-25 19:15:02,557 INFO L276 IsEmpty]: Start isEmpty. Operand 10054 states and 14840 transitions. [2021-11-25 19:15:02,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2021-11-25 19:15:02,560 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:15:02,560 INFO L514 BasicCegarLoop]: trace histogram [41, 41, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 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] [2021-11-25 19:15:02,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-25 19:15:02,560 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_kernel_module_module_putErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:15:02,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:15:02,561 INFO L85 PathProgramCache]: Analyzing trace with hash 475064825, now seen corresponding path program 1 times [2021-11-25 19:15:02,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:15:02,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215007180] [2021-11-25 19:15:02,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:15:02,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:15:03,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:15:03,369 INFO L134 CoverageAnalysis]: Checked inductivity of 4011 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4011 trivial. 0 not checked. [2021-11-25 19:15:03,369 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:15:03,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215007180] [2021-11-25 19:15:03,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215007180] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:15:03,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:15:03,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:15:03,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170574378] [2021-11-25 19:15:03,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:15:03,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:15:03,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:15:03,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:15:03,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:15:03,373 INFO L87 Difference]: Start difference. First operand 10054 states and 14840 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2021-11-25 19:15:07,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:11,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:15:11,401 INFO L93 Difference]: Finished difference Result 20055 states and 30747 transitions. [2021-11-25 19:15:11,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:15:11,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 395 [2021-11-25 19:15:11,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:15:11,460 INFO L225 Difference]: With dead ends: 20055 [2021-11-25 19:15:11,460 INFO L226 Difference]: Without dead ends: 10058 [2021-11-25 19:15:11,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:15:11,564 INFO L933 BasicCegarLoop]: 1482 mSDtfsCounter, 5 mSDsluCounter, 3530 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4444 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:15:11,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 4444 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 862 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2021-11-25 19:15:11,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10058 states. [2021-11-25 19:15:12,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10058 to 10056. [2021-11-25 19:15:12,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10056 states, 6488 states have (on average 1.3327681874229347) internal successors, (8647), 6703 states have internal predecessors, (8647), 2648 states have call successors, (2648), 895 states have call predecessors, (2648), 890 states have return successors, (3535), 2547 states have call predecessors, (3535), 2645 states have call successors, (3535) [2021-11-25 19:15:12,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10056 states to 10056 states and 14830 transitions. [2021-11-25 19:15:12,760 INFO L78 Accepts]: Start accepts. Automaton has 10056 states and 14830 transitions. Word has length 395 [2021-11-25 19:15:12,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:15:12,761 INFO L470 AbstractCegarLoop]: Abstraction has 10056 states and 14830 transitions. [2021-11-25 19:15:12,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2021-11-25 19:15:12,762 INFO L276 IsEmpty]: Start isEmpty. Operand 10056 states and 14830 transitions. [2021-11-25 19:15:12,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2021-11-25 19:15:12,765 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:15:12,765 INFO L514 BasicCegarLoop]: trace histogram [41, 41, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:15:12,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-25 19:15:12,766 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_kernel_module_module_putErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:15:12,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:15:12,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1264833804, now seen corresponding path program 1 times [2021-11-25 19:15:12,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:15:12,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535959886] [2021-11-25 19:15:12,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:15:12,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:15:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:15:13,533 INFO L134 CoverageAnalysis]: Checked inductivity of 4019 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4019 trivial. 0 not checked. [2021-11-25 19:15:13,534 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:15:13,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535959886] [2021-11-25 19:15:13,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535959886] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:15:13,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:15:13,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:15:13,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57212953] [2021-11-25 19:15:13,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:15:13,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 19:15:13,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:15:13,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 19:15:13,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:15:13,537 INFO L87 Difference]: Start difference. First operand 10056 states and 14830 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-25 19:15:22,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:24,830 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:15:36,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:15:36,082 INFO L93 Difference]: Finished difference Result 17000 states and 25634 transitions. [2021-11-25 19:15:36,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 19:15:36,083 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 399 [2021-11-25 19:15:36,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:15:36,162 INFO L225 Difference]: With dead ends: 17000 [2021-11-25 19:15:36,163 INFO L226 Difference]: Without dead ends: 16998 [2021-11-25 19:15:36,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-11-25 19:15:36,170 INFO L933 BasicCegarLoop]: 4202 mSDtfsCounter, 3353 mSDsluCounter, 15882 mSDsCounter, 0 mSdLazyCounter, 6650 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3353 SdHoareTripleChecker+Valid, 17054 SdHoareTripleChecker+Invalid, 6661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 6650 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:15:36,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3353 Valid, 17054 Invalid, 6661 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 6650 Invalid, 2 Unknown, 0 Unchecked, 21.2s Time] [2021-11-25 19:15:36,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16998 states. [2021-11-25 19:15:37,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16998 to 16356. [2021-11-25 19:15:37,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16356 states, 10562 states have (on average 1.3397083885627723) internal successors, (14150), 10903 states have internal predecessors, (14150), 4344 states have call successors, (4344), 1417 states have call predecessors, (4344), 1420 states have return successors, (6504), 4185 states have call predecessors, (6504), 4341 states have call successors, (6504) [2021-11-25 19:15:37,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16356 states to 16356 states and 24998 transitions. [2021-11-25 19:15:37,599 INFO L78 Accepts]: Start accepts. Automaton has 16356 states and 24998 transitions. Word has length 399 [2021-11-25 19:15:37,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:15:37,600 INFO L470 AbstractCegarLoop]: Abstraction has 16356 states and 24998 transitions. [2021-11-25 19:15:37,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-25 19:15:37,600 INFO L276 IsEmpty]: Start isEmpty. Operand 16356 states and 24998 transitions. [2021-11-25 19:15:37,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2021-11-25 19:15:37,605 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:15:37,605 INFO L514 BasicCegarLoop]: trace histogram [43, 43, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:15:37,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-25 19:15:37,606 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:15:37,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:15:37,606 INFO L85 PathProgramCache]: Analyzing trace with hash -980313287, now seen corresponding path program 1 times [2021-11-25 19:15:37,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:15:37,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927331228] [2021-11-25 19:15:37,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:15:37,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:15:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:15:37,981 INFO L134 CoverageAnalysis]: Checked inductivity of 4308 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4308 trivial. 0 not checked. [2021-11-25 19:15:37,982 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:15:37,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927331228] [2021-11-25 19:15:37,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927331228] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:15:37,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:15:37,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:15:37,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741854499] [2021-11-25 19:15:37,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:15:37,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:15:37,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:15:37,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:15:37,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:15:37,985 INFO L87 Difference]: Start difference. First operand 16356 states and 24998 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, (44), 3 states have call predecessors, (44), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-25 19:15:42,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:44,708 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:15:52,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:15:52,569 INFO L93 Difference]: Finished difference Result 30945 states and 50516 transitions. [2021-11-25 19:15:52,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:15:52,569 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, (44), 3 states have call predecessors, (44), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 445 [2021-11-25 19:15:52,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:15:52,784 INFO L225 Difference]: With dead ends: 30945 [2021-11-25 19:15:52,784 INFO L226 Difference]: Without dead ends: 30943 [2021-11-25 19:15:52,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:15:52,803 INFO L933 BasicCegarLoop]: 2313 mSDtfsCounter, 1588 mSDsluCounter, 7119 mSDsCounter, 0 mSdLazyCounter, 1488 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1591 SdHoareTripleChecker+Valid, 8359 SdHoareTripleChecker+Invalid, 1492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:15:52,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1591 Valid, 8359 Invalid, 1492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1488 Invalid, 1 Unknown, 0 Unchecked, 12.5s Time] [2021-11-25 19:15:52,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30943 states. [2021-11-25 19:15:55,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30943 to 30264. [2021-11-25 19:15:55,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30264 states, 19404 states have (on average 1.3361162646876932) internal successors, (25926), 20143 states have internal predecessors, (25926), 8145 states have call successors, (8145), 2706 states have call predecessors, (8145), 2685 states have return successors, (15756), 7684 states have call predecessors, (15756), 8142 states have call successors, (15756) [2021-11-25 19:15:55,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30264 states to 30264 states and 49827 transitions. [2021-11-25 19:15:55,695 INFO L78 Accepts]: Start accepts. Automaton has 30264 states and 49827 transitions. Word has length 445 [2021-11-25 19:15:55,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:15:55,695 INFO L470 AbstractCegarLoop]: Abstraction has 30264 states and 49827 transitions. [2021-11-25 19:15:55,696 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, (44), 3 states have call predecessors, (44), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-25 19:15:55,696 INFO L276 IsEmpty]: Start isEmpty. Operand 30264 states and 49827 transitions. [2021-11-25 19:15:55,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2021-11-25 19:15:55,702 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:15:55,703 INFO L514 BasicCegarLoop]: trace histogram [43, 43, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:15:55,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-25 19:15:55,703 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:15:55,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:15:55,704 INFO L85 PathProgramCache]: Analyzing trace with hash 2120523281, now seen corresponding path program 1 times [2021-11-25 19:15:55,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:15:55,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112848533] [2021-11-25 19:15:55,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:15:55,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:15:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:15:56,462 INFO L134 CoverageAnalysis]: Checked inductivity of 4322 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4322 trivial. 0 not checked. [2021-11-25 19:15:56,462 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:15:56,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112848533] [2021-11-25 19:15:56,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112848533] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:15:56,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:15:56,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-25 19:15:56,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472164541] [2021-11-25 19:15:56,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:15:56,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:15:56,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:15:56,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:15:56,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:15:56,464 INFO L87 Difference]: Start difference. First operand 30264 states and 49827 transitions. Second operand has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (47), 3 states have call predecessors, (47), 2 states have return successors, (44), 2 states have call predecessors, (44), 1 states have call successors, (44) [2021-11-25 19:16:02,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:16:13,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:16:13,445 INFO L93 Difference]: Finished difference Result 37916 states and 62302 transitions. [2021-11-25 19:16:13,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 19:16:13,446 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (47), 3 states have call predecessors, (47), 2 states have return successors, (44), 2 states have call predecessors, (44), 1 states have call successors, (44) Word has length 461 [2021-11-25 19:16:13,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:16:13,682 INFO L225 Difference]: With dead ends: 37916 [2021-11-25 19:16:13,682 INFO L226 Difference]: Without dead ends: 37914 [2021-11-25 19:16:13,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-25 19:16:13,704 INFO L933 BasicCegarLoop]: 1954 mSDtfsCounter, 1203 mSDsluCounter, 9919 mSDsCounter, 0 mSdLazyCounter, 2011 mSolverCounterSat, 279 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 10310 SdHoareTripleChecker+Invalid, 2291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 2011 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:16:13,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1204 Valid, 10310 Invalid, 2291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 2011 Invalid, 1 Unknown, 0 Unchecked, 14.4s Time] [2021-11-25 19:16:13,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37914 states. [2021-11-25 19:16:16,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37914 to 37885. [2021-11-25 19:16:16,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37885 states, 24262 states have (on average 1.3317533591624764) internal successors, (32311), 25264 states have internal predecessors, (32311), 9988 states have call successors, (9988), 3620 states have call predecessors, (9988), 3605 states have return successors, (19965), 9375 states have call predecessors, (19965), 9985 states have call successors, (19965) [2021-11-25 19:16:16,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37885 states to 37885 states and 62264 transitions. [2021-11-25 19:16:16,810 INFO L78 Accepts]: Start accepts. Automaton has 37885 states and 62264 transitions. Word has length 461 [2021-11-25 19:16:16,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:16:16,811 INFO L470 AbstractCegarLoop]: Abstraction has 37885 states and 62264 transitions. [2021-11-25 19:16:16,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (47), 3 states have call predecessors, (47), 2 states have return successors, (44), 2 states have call predecessors, (44), 1 states have call successors, (44) [2021-11-25 19:16:16,811 INFO L276 IsEmpty]: Start isEmpty. Operand 37885 states and 62264 transitions. [2021-11-25 19:16:16,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2021-11-25 19:16:16,818 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:16:16,819 INFO L514 BasicCegarLoop]: trace histogram [43, 43, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:16:16,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-25 19:16:16,819 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:16:16,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:16:16,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1233760715, now seen corresponding path program 1 times [2021-11-25 19:16:16,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:16:16,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786334680] [2021-11-25 19:16:16,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:16:16,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:16:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:16:17,747 INFO L134 CoverageAnalysis]: Checked inductivity of 4322 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4322 trivial. 0 not checked. [2021-11-25 19:16:17,748 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:16:17,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786334680] [2021-11-25 19:16:17,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786334680] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:16:17,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:16:17,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-25 19:16:17,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724714490] [2021-11-25 19:16:17,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:16:17,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:16:17,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:16:17,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:16:17,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:16:17,750 INFO L87 Difference]: Start difference. First operand 37885 states and 62264 transitions. Second operand has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (47), 3 states have call predecessors, (47), 2 states have return successors, (44), 2 states have call predecessors, (44), 1 states have call successors, (44) [2021-11-25 19:16:23,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:16:32,583 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:16:34,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:16:34,377 INFO L93 Difference]: Finished difference Result 50106 states and 81079 transitions. [2021-11-25 19:16:34,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 19:16:34,377 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (47), 3 states have call predecessors, (47), 2 states have return successors, (44), 2 states have call predecessors, (44), 1 states have call successors, (44) Word has length 462 [2021-11-25 19:16:34,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:16:34,806 INFO L225 Difference]: With dead ends: 50106 [2021-11-25 19:16:34,806 INFO L226 Difference]: Without dead ends: 50104 [2021-11-25 19:16:34,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-25 19:16:34,827 INFO L933 BasicCegarLoop]: 1918 mSDtfsCounter, 2121 mSDsluCounter, 9834 mSDsCounter, 0 mSdLazyCounter, 1982 mSolverCounterSat, 823 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2122 SdHoareTripleChecker+Valid, 10204 SdHoareTripleChecker+Invalid, 2806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 823 IncrementalHoareTripleChecker+Valid, 1982 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:16:34,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2122 Valid, 10204 Invalid, 2806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [823 Valid, 1982 Invalid, 1 Unknown, 0 Unchecked, 13.5s Time] [2021-11-25 19:16:34,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50104 states. [2021-11-25 19:16:38,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50104 to 49520. [2021-11-25 19:16:38,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49520 states, 31596 states have (on average 1.3265286745157614) internal successors, (41913), 32976 states have internal predecessors, (41913), 12750 states have call successors, (12750), 5148 states have call predecessors, (12750), 5144 states have return successors, (25733), 11920 states have call predecessors, (25733), 12747 states have call successors, (25733) [2021-11-25 19:16:39,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49520 states to 49520 states and 80396 transitions. [2021-11-25 19:16:39,113 INFO L78 Accepts]: Start accepts. Automaton has 49520 states and 80396 transitions. Word has length 462 [2021-11-25 19:16:39,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:16:39,114 INFO L470 AbstractCegarLoop]: Abstraction has 49520 states and 80396 transitions. [2021-11-25 19:16:39,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (47), 3 states have call predecessors, (47), 2 states have return successors, (44), 2 states have call predecessors, (44), 1 states have call successors, (44) [2021-11-25 19:16:39,114 INFO L276 IsEmpty]: Start isEmpty. Operand 49520 states and 80396 transitions. [2021-11-25 19:16:39,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2021-11-25 19:16:39,124 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:16:39,125 INFO L514 BasicCegarLoop]: trace histogram [43, 43, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:16:39,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-25 19:16:39,125 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-25 19:16:39,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:16:39,126 INFO L85 PathProgramCache]: Analyzing trace with hash -911047320, now seen corresponding path program 1 times [2021-11-25 19:16:39,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:16:39,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220223585] [2021-11-25 19:16:39,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:16:39,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:16:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:16:39,818 INFO L134 CoverageAnalysis]: Checked inductivity of 4350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4350 trivial. 0 not checked. [2021-11-25 19:16:39,818 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:16:39,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220223585] [2021-11-25 19:16:39,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220223585] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:16:39,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:16:39,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:16:39,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746878696] [2021-11-25 19:16:39,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:16:39,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:16:39,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:16:39,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:16:39,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:16:39,821 INFO L87 Difference]: Start difference. First operand 49520 states and 80396 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-25 19:16:43,847 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:16:46,733 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:16:56,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:16:56,296 INFO L93 Difference]: Finished difference Result 96867 states and 168413 transitions. [2021-11-25 19:16:56,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:16:56,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 473 [2021-11-25 19:16:56,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:16:57,176 INFO L225 Difference]: With dead ends: 96867 [2021-11-25 19:16:57,176 INFO L226 Difference]: Without dead ends: 96865 [2021-11-25 19:16:57,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:16:57,229 INFO L933 BasicCegarLoop]: 1953 mSDtfsCounter, 1667 mSDsluCounter, 6213 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1670 SdHoareTripleChecker+Valid, 7279 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:16:57,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1670 Valid, 7279 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1213 Invalid, 1 Unknown, 0 Unchecked, 9.9s Time] [2021-11-25 19:16:57,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96865 states.