./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 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/bin/utaipan-TEXQjIfE4P/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_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 68ead1e29a6cc769e9e712c81a52de8a551f5275fff71a8b8c48675aa28de434 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:10:55,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:10:55,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:10:56,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:10:56,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:10:56,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:10:56,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:10:56,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:10:56,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:10:56,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:10:56,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:10:56,039 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:10:56,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:10:56,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:10:56,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:10:56,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:10:56,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:10:56,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:10:56,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:10:56,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:10:56,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:10:56,074 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:10:56,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:10:56,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:10:56,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:10:56,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:10:56,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:10:56,092 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:10:56,093 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:10:56,095 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:10:56,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:10:56,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:10:56,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:10:56,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:10:56,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:10:56,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:10:56,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:10:56,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:10:56,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:10:56,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:10:56,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:10:56,110 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:10:56,165 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:10:56,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:10:56,167 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:10:56,167 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:10:56,168 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:10:56,169 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:10:56,169 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:10:56,170 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:10:56,170 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:10:56,170 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:10:56,172 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:10:56,172 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:10:56,173 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:10:56,173 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:10:56,173 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:10:56,174 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:10:56,174 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:10:56,174 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:10:56,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:10:56,176 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:10:56,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:10:56,177 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:10:56,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:10:56,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:10:56,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:10:56,178 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:10:56,180 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:10:56,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:10:56,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:10:56,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:10:56,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:10:56,182 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:10:56,183 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:10:56,183 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:10:56,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:10:56,183 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:10:56,184 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:10:56,184 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:10:56,184 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_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68ead1e29a6cc769e9e712c81a52de8a551f5275fff71a8b8c48675aa28de434 [2021-11-21 01:10:56,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:10:56,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:10:56,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:10:56,558 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:10:56,559 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:10:56,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i [2021-11-21 01:10:56,664 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/bin/utaipan-TEXQjIfE4P/data/e45b7591e/c4c67e48596a4a2ba491316c253c2cf7/FLAG8305ffbd2 [2021-11-21 01:10:57,860 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:10:57,860 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i [2021-11-21 01:10:57,941 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/bin/utaipan-TEXQjIfE4P/data/e45b7591e/c4c67e48596a4a2ba491316c253c2cf7/FLAG8305ffbd2 [2021-11-21 01:10:58,092 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/bin/utaipan-TEXQjIfE4P/data/e45b7591e/c4c67e48596a4a2ba491316c253c2cf7 [2021-11-21 01:10:58,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:10:58,098 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:10:58,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:10:58,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:10:58,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:10:58,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:10:58" (1/1) ... [2021-11-21 01:10:58,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53092264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:10:58, skipping insertion in model container [2021-11-21 01:10:58,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:10:58" (1/1) ... [2021-11-21 01:10:58,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:10:58,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:11:03,813 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_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[418415,418428] [2021-11-21 01:11:03,825 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_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[418560,418573] [2021-11-21 01:11:03,826 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_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[418706,418719] [2021-11-21 01:11:03,827 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_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[418871,418884] [2021-11-21 01:11:03,829 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_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419029,419042] [2021-11-21 01:11:03,840 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419187,419200] [2021-11-21 01:11:03,841 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419345,419358] [2021-11-21 01:11:03,844 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419505,419518] [2021-11-21 01:11:03,845 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419664,419677] [2021-11-21 01:11:03,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419803,419816] [2021-11-21 01:11:03,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419945,419958] [2021-11-21 01:11:03,856 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[420094,420107] [2021-11-21 01:11:03,857 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[420233,420246] [2021-11-21 01:11:03,858 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[420388,420401] [2021-11-21 01:11:03,858 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[420548,420561] [2021-11-21 01:11:03,859 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[420699,420712] [2021-11-21 01:11:03,860 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[420850,420863] [2021-11-21 01:11:03,861 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421002,421015] [2021-11-21 01:11:03,862 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421151,421164] [2021-11-21 01:11:03,864 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421299,421312] [2021-11-21 01:11:03,865 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421456,421469] [2021-11-21 01:11:03,866 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421605,421618] [2021-11-21 01:11:03,867 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421761,421774] [2021-11-21 01:11:03,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421914,421927] [2021-11-21 01:11:03,870 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422060,422073] [2021-11-21 01:11:03,871 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422203,422216] [2021-11-21 01:11:03,872 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422355,422368] [2021-11-21 01:11:03,873 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422501,422514] [2021-11-21 01:11:03,874 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422646,422659] [2021-11-21 01:11:03,875 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422800,422813] [2021-11-21 01:11:03,877 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422951,422964] [2021-11-21 01:11:03,878 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[423106,423119] [2021-11-21 01:11:03,879 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[423258,423271] [2021-11-21 01:11:03,880 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[423413,423426] [2021-11-21 01:11:03,880 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[423577,423590] [2021-11-21 01:11:03,881 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[423733,423746] [2021-11-21 01:11:03,882 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[423897,423910] [2021-11-21 01:11:03,887 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424039,424052] [2021-11-21 01:11:03,888 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424197,424210] [2021-11-21 01:11:03,889 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424364,424377] [2021-11-21 01:11:03,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424523,424536] [2021-11-21 01:11:03,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424682,424695] [2021-11-21 01:11:03,892 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424831,424844] [2021-11-21 01:11:03,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424978,424991] [2021-11-21 01:11:03,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[425117,425130] [2021-11-21 01:11:03,894 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[425280,425293] [2021-11-21 01:11:03,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[425446,425459] [2021-11-21 01:11:03,896 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[425610,425623] [2021-11-21 01:11:03,897 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[425775,425788] [2021-11-21 01:11:03,898 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[425940,425953] [2021-11-21 01:11:03,899 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[426106,426119] [2021-11-21 01:11:03,899 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[426271,426284] [2021-11-21 01:11:03,900 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[426438,426451] [2021-11-21 01:11:03,901 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[426598,426611] [2021-11-21 01:11:03,901 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[426760,426773] [2021-11-21 01:11:03,902 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[426919,426932] [2021-11-21 01:11:03,903 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427065,427078] [2021-11-21 01:11:03,903 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427208,427221] [2021-11-21 01:11:03,904 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427352,427365] [2021-11-21 01:11:03,905 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427495,427508] [2021-11-21 01:11:03,905 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427639,427652] [2021-11-21 01:11:03,906 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427780,427793] [2021-11-21 01:11:03,907 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427918,427931] [2021-11-21 01:11:03,908 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428076,428089] [2021-11-21 01:11:03,909 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428235,428248] [2021-11-21 01:11:03,909 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428391,428404] [2021-11-21 01:11:03,910 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428540,428553] [2021-11-21 01:11:03,911 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428692,428705] [2021-11-21 01:11:03,911 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428843,428856] [2021-11-21 01:11:03,912 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428992,429005] [2021-11-21 01:11:03,913 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[429144,429157] [2021-11-21 01:11:03,913 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[429292,429305] [2021-11-21 01:11:03,914 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[429445,429458] [2021-11-21 01:11:03,915 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[429596,429609] [2021-11-21 01:11:03,915 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[429746,429759] [2021-11-21 01:11:03,916 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[429893,429906] [2021-11-21 01:11:03,917 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[430044,430057] [2021-11-21 01:11:03,917 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[430195,430208] [2021-11-21 01:11:03,918 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[430343,430356] [2021-11-21 01:11:03,919 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[430509,430522] [2021-11-21 01:11:03,919 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[430678,430691] [2021-11-21 01:11:03,920 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[430845,430858] [2021-11-21 01:11:03,920 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[431013,431026] [2021-11-21 01:11:03,921 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[431163,431176] [2021-11-21 01:11:03,923 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[431310,431323] [2021-11-21 01:11:03,924 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[431471,431484] [2021-11-21 01:11:03,925 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[431641,431654] [2021-11-21 01:11:03,926 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[431803,431816] [2021-11-21 01:11:03,950 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:11:04,057 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:11:04,914 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[418415,418428] [2021-11-21 01:11:04,916 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[418560,418573] [2021-11-21 01:11:04,917 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[418706,418719] [2021-11-21 01:11:04,917 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[418871,418884] [2021-11-21 01:11:04,918 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419029,419042] [2021-11-21 01:11:04,918 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419187,419200] [2021-11-21 01:11:04,919 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419345,419358] [2021-11-21 01:11:04,920 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419505,419518] [2021-11-21 01:11:04,920 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419664,419677] [2021-11-21 01:11:04,921 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419803,419816] [2021-11-21 01:11:04,922 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[419945,419958] [2021-11-21 01:11:04,922 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[420094,420107] [2021-11-21 01:11:04,923 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[420233,420246] [2021-11-21 01:11:04,924 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[420388,420401] [2021-11-21 01:11:04,924 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[420548,420561] [2021-11-21 01:11:04,925 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[420699,420712] [2021-11-21 01:11:04,925 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[420850,420863] [2021-11-21 01:11:04,926 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421002,421015] [2021-11-21 01:11:04,926 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421151,421164] [2021-11-21 01:11:04,927 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421299,421312] [2021-11-21 01:11:04,927 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421456,421469] [2021-11-21 01:11:04,928 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421605,421618] [2021-11-21 01:11:04,929 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421761,421774] [2021-11-21 01:11:04,931 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[421914,421927] [2021-11-21 01:11:04,932 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422060,422073] [2021-11-21 01:11:04,932 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422203,422216] [2021-11-21 01:11:04,933 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422355,422368] [2021-11-21 01:11:04,934 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422501,422514] [2021-11-21 01:11:04,935 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422646,422659] [2021-11-21 01:11:04,935 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422800,422813] [2021-11-21 01:11:04,936 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[422951,422964] [2021-11-21 01:11:04,936 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[423106,423119] [2021-11-21 01:11:04,937 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[423258,423271] [2021-11-21 01:11:04,938 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[423413,423426] [2021-11-21 01:11:04,939 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[423577,423590] [2021-11-21 01:11:04,940 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[423733,423746] [2021-11-21 01:11:04,941 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[423897,423910] [2021-11-21 01:11:04,942 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424039,424052] [2021-11-21 01:11:04,943 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424197,424210] [2021-11-21 01:11:04,943 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424364,424377] [2021-11-21 01:11:04,945 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424523,424536] [2021-11-21 01:11:04,946 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424682,424695] [2021-11-21 01:11:04,947 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424831,424844] [2021-11-21 01:11:04,947 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[424978,424991] [2021-11-21 01:11:04,948 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[425117,425130] [2021-11-21 01:11:04,948 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[425280,425293] [2021-11-21 01:11:04,949 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[425446,425459] [2021-11-21 01:11:04,949 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[425610,425623] [2021-11-21 01:11:04,950 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[425775,425788] [2021-11-21 01:11:04,950 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[425940,425953] [2021-11-21 01:11:04,951 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[426106,426119] [2021-11-21 01:11:04,951 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[426271,426284] [2021-11-21 01:11:04,952 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[426438,426451] [2021-11-21 01:11:04,952 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[426598,426611] [2021-11-21 01:11:04,953 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[426760,426773] [2021-11-21 01:11:04,955 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[426919,426932] [2021-11-21 01:11:04,964 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427065,427078] [2021-11-21 01:11:04,965 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427208,427221] [2021-11-21 01:11:04,965 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427352,427365] [2021-11-21 01:11:04,966 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427495,427508] [2021-11-21 01:11:04,968 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427639,427652] [2021-11-21 01:11:04,970 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427780,427793] [2021-11-21 01:11:04,970 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[427918,427931] [2021-11-21 01:11:04,971 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428076,428089] [2021-11-21 01:11:04,972 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428235,428248] [2021-11-21 01:11:04,977 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428391,428404] [2021-11-21 01:11:04,978 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428540,428553] [2021-11-21 01:11:04,978 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428692,428705] [2021-11-21 01:11:04,979 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428843,428856] [2021-11-21 01:11:04,979 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[428992,429005] [2021-11-21 01:11:04,979 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[429144,429157] [2021-11-21 01:11:04,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[429292,429305] [2021-11-21 01:11:04,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[429445,429458] [2021-11-21 01:11:04,981 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[429596,429609] [2021-11-21 01:11:04,981 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[429746,429759] [2021-11-21 01:11:04,982 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[429893,429906] [2021-11-21 01:11:04,982 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[430044,430057] [2021-11-21 01:11:04,983 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[430195,430208] [2021-11-21 01:11:04,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[430343,430356] [2021-11-21 01:11:04,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[430509,430522] [2021-11-21 01:11:04,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[430678,430691] [2021-11-21 01:11:04,989 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[430845,430858] [2021-11-21 01:11:04,990 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[431013,431026] [2021-11-21 01:11:04,990 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[431163,431176] [2021-11-21 01:11:04,991 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[431310,431323] [2021-11-21 01:11:04,991 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[431471,431484] [2021-11-21 01:11:04,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[431641,431654] [2021-11-21 01:11:04,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i[431803,431816] [2021-11-21 01:11:05,002 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:11:05,377 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:11:05,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:11:05 WrapperNode [2021-11-21 01:11:05,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:11:05,379 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:11:05,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:11:05,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:11:05,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:11:05" (1/1) ... [2021-11-21 01:11:05,587 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:11:05" (1/1) ... [2021-11-21 01:11:05,883 INFO L137 Inliner]: procedures = 643, calls = 3813, calls flagged for inlining = 294, calls inlined = 195, statements flattened = 6040 [2021-11-21 01:11:05,884 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:11:05,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:11:05,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:11:05,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:11:05,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:11:05" (1/1) ... [2021-11-21 01:11:05,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:11:05" (1/1) ... [2021-11-21 01:11:05,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:11:05" (1/1) ... [2021-11-21 01:11:05,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:11:05" (1/1) ... [2021-11-21 01:11:06,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:11:05" (1/1) ... [2021-11-21 01:11:06,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:11:05" (1/1) ... [2021-11-21 01:11:06,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:11:05" (1/1) ... [2021-11-21 01:11:06,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:11:06,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:11:06,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:11:06,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:11:06,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:11:05" (1/1) ... [2021-11-21 01:11:06,229 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:11:06,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:11:06,261 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:11:06,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2c8b9b-dbdc-4f8d-ae67-6c4d764001a0/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:11:06,318 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-21 01:11:06,318 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-21 01:11:06,318 INFO L130 BoogieDeclarations]: Found specification of procedure PDEBUG_MODE [2021-11-21 01:11:06,319 INFO L138 BoogieDeclarations]: Found implementation of procedure PDEBUG_MODE [2021-11-21 01:11:06,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-21 01:11:06,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-21 01:11:06,319 INFO L130 BoogieDeclarations]: Found specification of procedure alt_xfer [2021-11-21 01:11:06,319 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_xfer [2021-11-21 01:11:06,320 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamon [2021-11-21 01:11:06,320 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamon [2021-11-21 01:11:06,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 01:11:06,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 01:11:06,322 INFO L130 BoogieDeclarations]: Found specification of procedure dev_poll [2021-11-21 01:11:06,322 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_poll [2021-11-21 01:11:06,322 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_reqbufs [2021-11-21 01:11:06,323 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_reqbufs [2021-11-21 01:11:06,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-21 01:11:06,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-21 01:11:06,323 INFO L130 BoogieDeclarations]: Found specification of procedure frame_ready_nolock [2021-11-21 01:11:06,323 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_ready_nolock [2021-11-21 01:11:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2021-11-21 01:11:06,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2021-11-21 01:11:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure frame_ready [2021-11-21 01:11:06,324 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_ready [2021-11-21 01:11:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-11-21 01:11:06,324 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-11-21 01:11:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-21 01:11:06,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-21 01:11:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-21 01:11:06,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-21 01:11:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_set_alt0 [2021-11-21 01:11:06,325 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_set_alt0 [2021-11-21 01:11:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2021-11-21 01:11:06,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2021-11-21 01:11:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 01:11:06,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 01:11:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2021-11-21 01:11:06,327 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2021-11-21 01:11:06,327 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-21 01:11:06,327 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-21 01:11:06,327 INFO L130 BoogieDeclarations]: Found specification of procedure int_irq [2021-11-21 01:11:06,327 INFO L138 BoogieDeclarations]: Found implementation of procedure int_irq [2021-11-21 01:11:06,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 01:11:06,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 01:11:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-21 01:11:06,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-21 01:11:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_queue_lock_of_gspca_dev [2021-11-21 01:11:06,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_queue_lock_of_gspca_dev [2021-11-21 01:11:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_setup [2021-11-21 01:11:06,329 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_setup [2021-11-21 01:11:06,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:11:06,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_usb_lock_of_gspca_dev [2021-11-21 01:11:06,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_usb_lock_of_gspca_dev [2021-11-21 01:11:06,330 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_stream_off [2021-11-21 01:11:06,330 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_stream_off [2021-11-21 01:11:06,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-21 01:11:06,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-21 01:11:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 01:11:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_input_create_urb [2021-11-21 01:11:06,331 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_input_create_urb [2021-11-21 01:11:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_timeval [2021-11-21 01:11:06,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_timeval [2021-11-21 01:11:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-21 01:11:06,332 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-21 01:11:06,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 01:11:06,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-21 01:11:06,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-21 01:11:06,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 01:11:06,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 01:11:06,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-21 01:11:06,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-21 01:11:06,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:11:06,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-21 01:11:06,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-21 01:11:06,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 01:11:06,342 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 01:11:06,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-21 01:11:06,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-21 01:11:06,343 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-21 01:11:06,343 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-21 01:11:06,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-21 01:11:06,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-21 01:11:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-11-21 01:11:06,344 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-11-21 01:11:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-21 01:11:06,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-21 01:11:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-21 01:11:06,345 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-21 01:11:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2021-11-21 01:11:06,345 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2021-11-21 01:11:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-21 01:11:06,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-21 01:11:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:11:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_resume [2021-11-21 01:11:06,346 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_resume [2021-11-21 01:11:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_urbs [2021-11-21 01:11:06,346 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_urbs [2021-11-21 01:11:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:11:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 01:11:06,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 01:11:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:11:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-21 01:11:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 01:11:06,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 01:11:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-21 01:11:06,348 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-21 01:11:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:11:06,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:11:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure dev_open [2021-11-21 01:11:06,348 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_open [2021-11-21 01:11:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_queue_lock_of_gspca_dev [2021-11-21 01:11:06,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_queue_lock_of_gspca_dev [2021-11-21 01:11:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_vm_close [2021-11-21 01:11:06,350 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_vm_close [2021-11-21 01:11:06,350 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_qbuf [2021-11-21 01:11:06,350 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_qbuf [2021-11-21 01:11:06,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-21 01:11:06,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-21 01:11:06,351 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2021-11-21 01:11:06,351 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2021-11-21 01:11:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-21 01:11:06,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-21 01:11:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2021-11-21 01:11:06,352 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2021-11-21 01:11:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:11:06,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:11:06,353 INFO L130 BoogieDeclarations]: Found specification of procedure wxh_to_mode [2021-11-21 01:11:06,353 INFO L138 BoogieDeclarations]: Found implementation of procedure wxh_to_mode [2021-11-21 01:11:06,353 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-11-21 01:11:06,353 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-11-21 01:11:06,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 01:11:06,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 01:11:06,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 01:11:06,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 01:11:06,354 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2021-11-21 01:11:06,354 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2021-11-21 01:11:06,355 INFO L130 BoogieDeclarations]: Found specification of procedure frame_free [2021-11-21 01:11:06,355 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_free [2021-11-21 01:11:06,355 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-21 01:11:06,355 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-21 01:11:06,355 INFO L130 BoogieDeclarations]: Found specification of procedure dev_mmap [2021-11-21 01:11:06,355 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_mmap [2021-11-21 01:11:06,356 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2021-11-21 01:11:06,356 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2021-11-21 01:11:06,356 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamoff [2021-11-21 01:11:06,356 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamoff [2021-11-21 01:11:06,356 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_init_transfer [2021-11-21 01:11:06,356 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_init_transfer [2021-11-21 01:11:06,357 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-21 01:11:06,357 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-21 01:11:06,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:11:06,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:11:06,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-21 01:11:06,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-21 01:11:06,358 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2021-11-21 01:11:06,358 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2021-11-21 01:11:06,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-21 01:11:06,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-21 01:11:06,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-21 01:11:06,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-21 01:11:06,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:11:06,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-21 01:11:06,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-21 01:11:06,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:11:06,359 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-21 01:11:06,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-21 01:11:06,360 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2021-11-21 01:11:06,360 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2021-11-21 01:11:06,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_usb_lock_of_gspca_dev [2021-11-21 01:11:06,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_usb_lock_of_gspca_dev [2021-11-21 01:11:06,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_free_coherent [2021-11-21 01:11:06,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_free_coherent [2021-11-21 01:11:06,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:11:06,361 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2021-11-21 01:11:06,361 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2021-11-21 01:11:06,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_module_put [2021-11-21 01:11:06,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_module_put [2021-11-21 01:11:06,362 INFO L130 BoogieDeclarations]: Found specification of procedure read_alloc [2021-11-21 01:11:06,362 INFO L138 BoogieDeclarations]: Found implementation of procedure read_alloc [2021-11-21 01:11:06,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-21 01:11:06,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-21 01:11:06,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 01:11:06,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 01:11:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_dqbuf [2021-11-21 01:11:06,363 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_dqbuf [2021-11-21 01:11:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release_empty [2021-11-21 01:11:06,363 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release_empty [2021-11-21 01:11:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-21 01:11:06,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-21 01:11:06,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-11-21 01:11:06,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-11-21 01:11:06,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-21 01:11:06,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-21 01:11:06,364 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_input_destroy_urb [2021-11-21 01:11:06,365 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_input_destroy_urb [2021-11-21 01:11:06,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-21 01:11:06,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-21 01:11:06,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-21 01:11:06,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-21 01:11:06,365 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-21 01:11:06,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-21 01:11:06,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-21 01:11:06,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-21 01:11:06,367 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-21 01:11:06,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-21 01:11:06,368 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 01:11:06,368 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 01:11:06,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-21 01:11:06,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-21 01:11:06,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:11:06,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-21 01:11:06,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-21 01:11:06,369 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_disconnect [2021-11-21 01:11:06,369 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_disconnect [2021-11-21 01:11:06,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 01:11:06,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 01:11:06,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-21 01:11:06,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-21 01:11:06,370 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2021-11-21 01:11:06,370 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2021-11-21 01:11:06,370 INFO L130 BoogieDeclarations]: Found specification of procedure try_fmt_vid_cap [2021-11-21 01:11:06,370 INFO L138 BoogieDeclarations]: Found implementation of procedure try_fmt_vid_cap [2021-11-21 01:11:06,371 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-21 01:11:06,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-21 01:11:06,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 01:11:06,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 01:11:06,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-21 01:11:06,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-21 01:11:06,372 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-21 01:11:06,372 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-21 01:11:06,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_usb_lock_of_gspca_dev [2021-11-21 01:11:06,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_usb_lock_of_gspca_dev [2021-11-21 01:11:06,372 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-21 01:11:06,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-21 01:11:06,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:11:06,373 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-21 01:11:06,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-21 01:11:06,373 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_vm_open [2021-11-21 01:11:06,373 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_vm_open [2021-11-21 01:11:07,539 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:11:07,544 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:11:07,765 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 01:11:14,533 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:11:16,162 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:11:16,162 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 01:11:16,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:11:16 BoogieIcfgContainer [2021-11-21 01:11:16,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:11:16,171 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:11:16,171 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:11:16,177 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:11:16,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:10:58" (1/3) ... [2021-11-21 01:11:16,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e4792c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:11:16, skipping insertion in model container [2021-11-21 01:11:16,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:11:05" (2/3) ... [2021-11-21 01:11:16,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e4792c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:11:16, skipping insertion in model container [2021-11-21 01:11:16,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:11:16" (3/3) ... [2021-11-21 01:11:16,181 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--media--usb--gspca--gspca_main.ko.cil.i [2021-11-21 01:11:16,188 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:11:16,189 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2021-11-21 01:11:16,288 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:11:16,297 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:11:16,297 INFO L340 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2021-11-21 01:11:16,373 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) [2021-11-21 01:11:16,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-21 01:11:16,384 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:11:16,385 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:11:16,386 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)] === [2021-11-21 01:11:16,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:11:16,398 INFO L85 PathProgramCache]: Analyzing trace with hash 794138715, now seen corresponding path program 1 times [2021-11-21 01:11:16,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:11:16,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062092516] [2021-11-21 01:11:16,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:11:16,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:11:16,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:11:17,315 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:11:17,316 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:11:17,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062092516] [2021-11-21 01:11:17,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062092516] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:11:17,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:11:17,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:11:17,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689064549] [2021-11-21 01:11:17,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:11:17,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:11:17,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:11:17,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:11:17,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:11:17,406 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) [2021-11-21 01:11:22,285 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:11:25,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:11:25,812 INFO L93 Difference]: Finished difference Result 3860 states and 5657 transitions. [2021-11-21 01:11:25,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:11:25,815 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 36 [2021-11-21 01:11:25,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:11:25,872 INFO L225 Difference]: With dead ends: 3860 [2021-11-21 01:11:25,872 INFO L226 Difference]: Without dead ends: 2567 [2021-11-21 01:11:25,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:11:25,894 INFO L933 BasicCegarLoop]: 1855 mSDtfsCounter, 1810 mSDsluCounter, 3839 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s 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, 8.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:11:25,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1812 Valid, 5126 Invalid, 862 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 860 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2021-11-21 01:11:25,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2567 states. [2021-11-21 01:11:26,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2567 to 2505. [2021-11-21 01:11:26,130 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) [2021-11-21 01:11:26,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3465 transitions. [2021-11-21 01:11:26,166 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3465 transitions. Word has length 36 [2021-11-21 01:11:26,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:11:26,167 INFO L470 AbstractCegarLoop]: Abstraction has 2505 states and 3465 transitions. [2021-11-21 01:11:26,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-21 01:11:26,168 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3465 transitions. [2021-11-21 01:11:26,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-21 01:11:26,170 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:11:26,171 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:11:26,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:11:26,171 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)] === [2021-11-21 01:11:26,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:11:26,172 INFO L85 PathProgramCache]: Analyzing trace with hash -271640885, now seen corresponding path program 1 times [2021-11-21 01:11:26,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:11:26,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550154544] [2021-11-21 01:11:26,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:11:26,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:11:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:11:26,460 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:11:26,461 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:11:26,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550154544] [2021-11-21 01:11:26,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550154544] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:11:26,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:11:26,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:11:26,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713026332] [2021-11-21 01:11:26,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:11:26,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:11:26,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:11:26,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:11:26,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:11:26,468 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) [2021-11-21 01:11:31,340 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:11:34,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:11:34,895 INFO L93 Difference]: Finished difference Result 2567 states and 3498 transitions. [2021-11-21 01:11:34,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:11:34,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 41 [2021-11-21 01:11:34,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:11:34,922 INFO L225 Difference]: With dead ends: 2567 [2021-11-21 01:11:34,923 INFO L226 Difference]: Without dead ends: 2565 [2021-11-21 01:11:34,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:11:34,926 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1792 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s 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, 8.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:11:34,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1794 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2021-11-21 01:11:34,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2021-11-21 01:11:35,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 2505. [2021-11-21 01:11:35,167 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) [2021-11-21 01:11:35,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3464 transitions. [2021-11-21 01:11:35,197 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3464 transitions. Word has length 41 [2021-11-21 01:11:35,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:11:35,198 INFO L470 AbstractCegarLoop]: Abstraction has 2505 states and 3464 transitions. [2021-11-21 01:11:35,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-21 01:11:35,199 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3464 transitions. [2021-11-21 01:11:35,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-21 01:11:35,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:11:35,205 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:11:35,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:11:35,205 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)] === [2021-11-21 01:11:35,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:11:35,206 INFO L85 PathProgramCache]: Analyzing trace with hash 904313440, now seen corresponding path program 1 times [2021-11-21 01:11:35,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:11:35,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661571168] [2021-11-21 01:11:35,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:11:35,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:11:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:11:35,549 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:11:35,550 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:11:35,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661571168] [2021-11-21 01:11:35,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661571168] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:11:35,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:11:35,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:11:35,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337909975] [2021-11-21 01:11:35,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:11:35,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:11:35,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:11:35,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:11:35,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:11:35,553 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) [2021-11-21 01:11:39,896 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:11:43,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:11:43,327 INFO L93 Difference]: Finished difference Result 2565 states and 3496 transitions. [2021-11-21 01:11:43,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:11:43,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 46 [2021-11-21 01:11:43,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:11:43,355 INFO L225 Difference]: With dead ends: 2565 [2021-11-21 01:11:43,356 INFO L226 Difference]: Without dead ends: 2563 [2021-11-21 01:11:43,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:11:43,362 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1789 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s 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, 7.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:11:43,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1791 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2021-11-21 01:11:43,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2021-11-21 01:11:43,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 2505. [2021-11-21 01:11:43,539 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) [2021-11-21 01:11:43,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3463 transitions. [2021-11-21 01:11:43,568 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3463 transitions. Word has length 46 [2021-11-21 01:11:43,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:11:43,569 INFO L470 AbstractCegarLoop]: Abstraction has 2505 states and 3463 transitions. [2021-11-21 01:11:43,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-21 01:11:43,569 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3463 transitions. [2021-11-21 01:11:43,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-21 01:11:43,571 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:11:43,571 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:11:43,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:11:43,571 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)] === [2021-11-21 01:11:43,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:11:43,572 INFO L85 PathProgramCache]: Analyzing trace with hash -316352628, now seen corresponding path program 1 times [2021-11-21 01:11:43,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:11:43,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208887985] [2021-11-21 01:11:43,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:11:43,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:11:43,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:11:43,806 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:11:43,806 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:11:43,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208887985] [2021-11-21 01:11:43,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208887985] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:11:43,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:11:43,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:11:43,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275036318] [2021-11-21 01:11:43,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:11:43,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:11:43,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:11:43,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:11:43,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:11:43,809 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) [2021-11-21 01:11:48,343 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:11:51,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:11:51,182 INFO L93 Difference]: Finished difference Result 2563 states and 3494 transitions. [2021-11-21 01:11:51,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:11:51,183 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 51 [2021-11-21 01:11:51,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:11:51,206 INFO L225 Difference]: With dead ends: 2563 [2021-11-21 01:11:51,206 INFO L226 Difference]: Without dead ends: 2561 [2021-11-21 01:11:51,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:11:51,210 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1786 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s 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, 7.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:11:51,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1788 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2021-11-21 01:11:51,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-11-21 01:11:51,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 2505. [2021-11-21 01:11:51,352 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) [2021-11-21 01:11:51,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3462 transitions. [2021-11-21 01:11:51,370 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3462 transitions. Word has length 51 [2021-11-21 01:11:51,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:11:51,371 INFO L470 AbstractCegarLoop]: Abstraction has 2505 states and 3462 transitions. [2021-11-21 01:11:51,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-21 01:11:51,372 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3462 transitions. [2021-11-21 01:11:51,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-21 01:11:51,374 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:11:51,374 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:11:51,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:11:51,375 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)] === [2021-11-21 01:11:51,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:11:51,375 INFO L85 PathProgramCache]: Analyzing trace with hash -502390806, now seen corresponding path program 1 times [2021-11-21 01:11:51,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:11:51,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40292054] [2021-11-21 01:11:51,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:11:51,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:11:51,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:11:51,595 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:11:51,595 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:11:51,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40292054] [2021-11-21 01:11:51,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40292054] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:11:51,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:11:51,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:11:51,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117256833] [2021-11-21 01:11:51,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:11:51,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:11:51,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:11:51,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:11:51,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:11:51,598 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) [2021-11-21 01:11:55,455 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:11:57,642 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:11:59,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:11:59,700 INFO L93 Difference]: Finished difference Result 3123 states and 4251 transitions. [2021-11-21 01:11:59,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:11:59,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2021-11-21 01:11:59,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:11:59,727 INFO L225 Difference]: With dead ends: 3123 [2021-11-21 01:11:59,727 INFO L226 Difference]: Without dead ends: 3121 [2021-11-21 01:11:59,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:11:59,733 INFO L933 BasicCegarLoop]: 1927 mSDtfsCounter, 1782 mSDsluCounter, 3910 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 5259 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:11:59,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1786 Valid, 5259 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 882 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2021-11-21 01:11:59,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3121 states. [2021-11-21 01:11:59,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3121 to 3064. [2021-11-21 01:11:59,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3064 states, 1935 states have (on average 1.330232558139535) internal successors, (2574), 2014 states have internal predecessors, (2574), 822 states have call successors, (822), 278 states have call predecessors, (822), 277 states have return successors, (820), 798 states have call predecessors, (820), 820 states have call successors, (820) [2021-11-21 01:11:59,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3064 states to 3064 states and 4216 transitions. [2021-11-21 01:11:59,955 INFO L78 Accepts]: Start accepts. Automaton has 3064 states and 4216 transitions. Word has length 56 [2021-11-21 01:11:59,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:11:59,956 INFO L470 AbstractCegarLoop]: Abstraction has 3064 states and 4216 transitions. [2021-11-21 01:11:59,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-21 01:11:59,957 INFO L276 IsEmpty]: Start isEmpty. Operand 3064 states and 4216 transitions. [2021-11-21 01:11:59,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-21 01:11:59,964 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:11:59,964 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:11:59,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 01:11:59,965 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)] === [2021-11-21 01:11:59,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:11:59,966 INFO L85 PathProgramCache]: Analyzing trace with hash 822096228, now seen corresponding path program 1 times [2021-11-21 01:11:59,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:11:59,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286010224] [2021-11-21 01:11:59,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:11:59,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:12:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:12:00,390 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:12:00,390 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:12:00,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286010224] [2021-11-21 01:12:00,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286010224] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:12:00,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:12:00,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:12:00,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035646980] [2021-11-21 01:12:00,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:12:00,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:12:00,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:12:00,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:12:00,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:12:00,395 INFO L87 Difference]: Start difference. First operand 3064 states and 4216 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-21 01:12:04,878 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:12:08,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:12:08,857 INFO L93 Difference]: Finished difference Result 3118 states and 4245 transitions. [2021-11-21 01:12:08,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:12:08,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2021-11-21 01:12:08,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:12:08,885 INFO L225 Difference]: With dead ends: 3118 [2021-11-21 01:12:08,885 INFO L226 Difference]: Without dead ends: 3116 [2021-11-21 01:12:08,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:12:08,889 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1780 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s 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, 8.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:12:08,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1782 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2021-11-21 01:12:08,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2021-11-21 01:12:09,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3064. [2021-11-21 01:12:09,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3064 states, 1935 states have (on average 1.3297157622739018) internal successors, (2573), 2014 states have internal predecessors, (2573), 822 states have call successors, (822), 278 states have call predecessors, (822), 277 states have return successors, (820), 798 states have call predecessors, (820), 820 states have call successors, (820) [2021-11-21 01:12:09,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3064 states to 3064 states and 4215 transitions. [2021-11-21 01:12:09,091 INFO L78 Accepts]: Start accepts. Automaton has 3064 states and 4215 transitions. Word has length 61 [2021-11-21 01:12:09,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:12:09,092 INFO L470 AbstractCegarLoop]: Abstraction has 3064 states and 4215 transitions. [2021-11-21 01:12:09,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-21 01:12:09,092 INFO L276 IsEmpty]: Start isEmpty. Operand 3064 states and 4215 transitions. [2021-11-21 01:12:09,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-21 01:12:09,093 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:12:09,093 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:12:09,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 01:12:09,093 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)] === [2021-11-21 01:12:09,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:12:09,094 INFO L85 PathProgramCache]: Analyzing trace with hash -396708520, now seen corresponding path program 1 times [2021-11-21 01:12:09,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:12:09,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347843806] [2021-11-21 01:12:09,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:12:09,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:12:09,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:12:09,345 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:12:09,345 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:12:09,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347843806] [2021-11-21 01:12:09,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347843806] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:12:09,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:12:09,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:12:09,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616420277] [2021-11-21 01:12:09,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:12:09,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:12:09,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:12:09,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:12:09,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:12:09,348 INFO L87 Difference]: Start difference. First operand 3064 states and 4215 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-21 01:12:14,968 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:12:18,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:12:18,132 INFO L93 Difference]: Finished difference Result 3116 states and 4243 transitions. [2021-11-21 01:12:18,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:12:18,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 66 [2021-11-21 01:12:18,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:12:18,156 INFO L225 Difference]: With dead ends: 3116 [2021-11-21 01:12:18,156 INFO L226 Difference]: Without dead ends: 3114 [2021-11-21 01:12:18,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:12:18,160 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1777 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s 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, 8.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:12:18,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1779 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2021-11-21 01:12:18,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3114 states. [2021-11-21 01:12:18,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3114 to 3064. [2021-11-21 01:12:18,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3064 states, 1935 states have (on average 1.3291989664082686) internal successors, (2572), 2014 states have internal predecessors, (2572), 822 states have call successors, (822), 278 states have call predecessors, (822), 277 states have return successors, (820), 798 states have call predecessors, (820), 820 states have call successors, (820) [2021-11-21 01:12:18,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3064 states to 3064 states and 4214 transitions. [2021-11-21 01:12:18,434 INFO L78 Accepts]: Start accepts. Automaton has 3064 states and 4214 transitions. Word has length 66 [2021-11-21 01:12:18,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:12:18,435 INFO L470 AbstractCegarLoop]: Abstraction has 3064 states and 4214 transitions. [2021-11-21 01:12:18,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-21 01:12:18,437 INFO L276 IsEmpty]: Start isEmpty. Operand 3064 states and 4214 transitions. [2021-11-21 01:12:18,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-21 01:12:18,438 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:12:18,438 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:12:18,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 01:12:18,439 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)] === [2021-11-21 01:12:18,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:12:18,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1516058044, now seen corresponding path program 1 times [2021-11-21 01:12:18,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:12:18,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44212500] [2021-11-21 01:12:18,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:12:18,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:12:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:12:18,718 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:12:18,718 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:12:18,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44212500] [2021-11-21 01:12:18,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44212500] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:12:18,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:12:18,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:12:18,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891984244] [2021-11-21 01:12:18,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:12:18,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:12:18,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:12:18,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:12:18,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:12:18,721 INFO L87 Difference]: Start difference. First operand 3064 states and 4214 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 01:12:23,953 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:12:26,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:12:26,584 INFO L93 Difference]: Finished difference Result 3114 states and 4241 transitions. [2021-11-21 01:12:26,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:12:26,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2021-11-21 01:12:26,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:12:26,608 INFO L225 Difference]: With dead ends: 3114 [2021-11-21 01:12:26,609 INFO L226 Difference]: Without dead ends: 3112 [2021-11-21 01:12:26,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:12:26,613 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1782 mSDsluCounter, 3807 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s 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, 7.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:12:26,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1784 Valid, 5081 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2021-11-21 01:12:26,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3112 states. [2021-11-21 01:12:26,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3112 to 3064. [2021-11-21 01:12:26,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3064 states, 1935 states have (on average 1.3286821705426357) internal successors, (2571), 2014 states have internal predecessors, (2571), 822 states have call successors, (822), 278 states have call predecessors, (822), 277 states have return successors, (820), 798 states have call predecessors, (820), 820 states have call successors, (820) [2021-11-21 01:12:26,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3064 states to 3064 states and 4213 transitions. [2021-11-21 01:12:26,826 INFO L78 Accepts]: Start accepts. Automaton has 3064 states and 4213 transitions. Word has length 71 [2021-11-21 01:12:26,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:12:26,827 INFO L470 AbstractCegarLoop]: Abstraction has 3064 states and 4213 transitions. [2021-11-21 01:12:26,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 01:12:26,828 INFO L276 IsEmpty]: Start isEmpty. Operand 3064 states and 4213 transitions. [2021-11-21 01:12:26,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-21 01:12:26,830 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:12:26,830 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:12:26,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 01:12:26,831 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)] === [2021-11-21 01:12:26,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:12:26,831 INFO L85 PathProgramCache]: Analyzing trace with hash 938028287, now seen corresponding path program 1 times [2021-11-21 01:12:26,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:12:26,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484563919] [2021-11-21 01:12:26,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:12:26,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:12:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:12:27,078 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:12:27,078 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:12:27,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484563919] [2021-11-21 01:12:27,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484563919] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:12:27,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:12:27,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:12:27,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114761235] [2021-11-21 01:12:27,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:12:27,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:12:27,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:12:27,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:12:27,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:12:27,083 INFO L87 Difference]: Start difference. First operand 3064 states and 4213 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 01:12:32,253 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:12:34,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:12:34,880 INFO L93 Difference]: Finished difference Result 3112 states and 4239 transitions. [2021-11-21 01:12:34,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:12:34,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 73 [2021-11-21 01:12:34,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:12:34,905 INFO L225 Difference]: With dead ends: 3112 [2021-11-21 01:12:34,906 INFO L226 Difference]: Without dead ends: 3110 [2021-11-21 01:12:34,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:12:34,909 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1770 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s 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, 7.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:12:34,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1772 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2021-11-21 01:12:34,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3110 states. [2021-11-21 01:12:35,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3110 to 3064. [2021-11-21 01:12:35,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3064 states, 1935 states have (on average 1.3281653746770026) internal successors, (2570), 2014 states have internal predecessors, (2570), 822 states have call successors, (822), 278 states have call predecessors, (822), 277 states have return successors, (820), 798 states have call predecessors, (820), 820 states have call successors, (820) [2021-11-21 01:12:35,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3064 states to 3064 states and 4212 transitions. [2021-11-21 01:12:35,110 INFO L78 Accepts]: Start accepts. Automaton has 3064 states and 4212 transitions. Word has length 73 [2021-11-21 01:12:35,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:12:35,111 INFO L470 AbstractCegarLoop]: Abstraction has 3064 states and 4212 transitions. [2021-11-21 01:12:35,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 01:12:35,112 INFO L276 IsEmpty]: Start isEmpty. Operand 3064 states and 4212 transitions. [2021-11-21 01:12:35,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-21 01:12:35,122 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:12:35,122 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:12:35,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 01:12:35,123 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)] === [2021-11-21 01:12:35,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:12:35,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1826161332, now seen corresponding path program 1 times [2021-11-21 01:12:35,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:12:35,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921512511] [2021-11-21 01:12:35,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:12:35,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:12:35,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:12:35,366 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:12:35,367 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:12:35,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921512511] [2021-11-21 01:12:35,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921512511] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:12:35,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:12:35,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:12:35,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985675423] [2021-11-21 01:12:35,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:12:35,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:12:35,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:12:35,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:12:35,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:12:35,370 INFO L87 Difference]: Start difference. First operand 3064 states and 4212 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-21 01:12:39,700 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:12:44,758 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:12:45,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:12:45,876 INFO L93 Difference]: Finished difference Result 4849 states and 6702 transitions. [2021-11-21 01:12:45,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:12:45,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 78 [2021-11-21 01:12:45,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:12:45,919 INFO L225 Difference]: With dead ends: 4849 [2021-11-21 01:12:45,919 INFO L226 Difference]: Without dead ends: 4847 [2021-11-21 01:12:45,924 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 [2021-11-21 01:12:45,925 INFO L933 BasicCegarLoop]: 2741 mSDtfsCounter, 1767 mSDsluCounter, 4995 mSDsCounter, 0 mSdLazyCounter, 1349 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1769 SdHoareTripleChecker+Valid, 6929 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1349 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:12:45,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1769 Valid, 6929 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1349 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2021-11-21 01:12:45,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4847 states. [2021-11-21 01:12:46,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4847 to 4742. [2021-11-21 01:12:46,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4742 states, 3009 states have (on average 1.3290129611166501) internal successors, (3999), 3122 states have internal predecessors, (3999), 1269 states have call successors, (1269), 435 states have call predecessors, (1269), 434 states have return successors, (1334), 1228 states have call predecessors, (1334), 1267 states have call successors, (1334) [2021-11-21 01:12:46,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4742 states to 4742 states and 6602 transitions. [2021-11-21 01:12:46,295 INFO L78 Accepts]: Start accepts. Automaton has 4742 states and 6602 transitions. Word has length 78 [2021-11-21 01:12:46,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:12:46,296 INFO L470 AbstractCegarLoop]: Abstraction has 4742 states and 6602 transitions. [2021-11-21 01:12:46,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-21 01:12:46,296 INFO L276 IsEmpty]: Start isEmpty. Operand 4742 states and 6602 transitions. [2021-11-21 01:12:46,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-21 01:12:46,299 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:12:46,299 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:12:46,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-21 01:12:46,300 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)] === [2021-11-21 01:12:46,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:12:46,301 INFO L85 PathProgramCache]: Analyzing trace with hash 411212699, now seen corresponding path program 1 times [2021-11-21 01:12:46,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:12:46,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445199389] [2021-11-21 01:12:46,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:12:46,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:12:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:12:46,572 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:12:46,573 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:12:46,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445199389] [2021-11-21 01:12:46,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445199389] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:12:46,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:12:46,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:12:46,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632364949] [2021-11-21 01:12:46,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:12:46,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:12:46,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:12:46,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:12:46,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:12:46,576 INFO L87 Difference]: Start difference. First operand 4742 states and 6602 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 01:12:50,293 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:12:54,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:12:54,520 INFO L93 Difference]: Finished difference Result 4843 states and 6693 transitions. [2021-11-21 01:12:54,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:12:54,520 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 83 [2021-11-21 01:12:54,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:12:54,546 INFO L225 Difference]: With dead ends: 4843 [2021-11-21 01:12:54,547 INFO L226 Difference]: Without dead ends: 4841 [2021-11-21 01:12:54,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:12:54,552 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1768 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s 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, 7.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:12:54,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1770 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2021-11-21 01:12:54,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4841 states. [2021-11-21 01:12:54,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4841 to 4752. [2021-11-21 01:12:54,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4752 states, 3015 states have (on average 1.328358208955224) internal successors, (4005), 3128 states have internal predecessors, (4005), 1271 states have call successors, (1271), 437 states have call predecessors, (1271), 436 states have return successors, (1336), 1230 states have call predecessors, (1336), 1269 states have call successors, (1336) [2021-11-21 01:12:54,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4752 states to 4752 states and 6612 transitions. [2021-11-21 01:12:54,981 INFO L78 Accepts]: Start accepts. Automaton has 4752 states and 6612 transitions. Word has length 83 [2021-11-21 01:12:54,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:12:54,982 INFO L470 AbstractCegarLoop]: Abstraction has 4752 states and 6612 transitions. [2021-11-21 01:12:54,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 01:12:54,983 INFO L276 IsEmpty]: Start isEmpty. Operand 4752 states and 6612 transitions. [2021-11-21 01:12:54,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-21 01:12:54,984 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:12:54,985 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:12:54,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-21 01:12:54,985 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)] === [2021-11-21 01:12:54,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:12:54,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1179946527, now seen corresponding path program 1 times [2021-11-21 01:12:54,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:12:54,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320947696] [2021-11-21 01:12:54,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:12:54,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:12:55,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:12:55,207 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:12:55,207 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:12:55,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320947696] [2021-11-21 01:12:55,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320947696] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:12:55,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:12:55,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:12:55,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553917252] [2021-11-21 01:12:55,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:12:55,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:12:55,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:12:55,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:12:55,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:12:55,210 INFO L87 Difference]: Start difference. First operand 4752 states and 6612 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-21 01:12:56,960 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:12:59,823 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:03,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:13:03,703 INFO L93 Difference]: Finished difference Result 4841 states and 6690 transitions. [2021-11-21 01:13:03,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:13:03,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 88 [2021-11-21 01:13:03,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:13:03,729 INFO L225 Difference]: With dead ends: 4841 [2021-11-21 01:13:03,730 INFO L226 Difference]: Without dead ends: 4839 [2021-11-21 01:13:03,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:13:03,735 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1765 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s 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, 8.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:13:03,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1767 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2021-11-21 01:13:03,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4839 states. [2021-11-21 01:13:04,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4839 to 4757. [2021-11-21 01:13:04,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4757 states, 3018 states have (on average 1.3277004638833665) internal successors, (4007), 3131 states have internal predecessors, (4007), 1272 states have call successors, (1272), 438 states have call predecessors, (1272), 437 states have return successors, (1337), 1231 states have call predecessors, (1337), 1270 states have call successors, (1337) [2021-11-21 01:13:04,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4757 states to 4757 states and 6616 transitions. [2021-11-21 01:13:04,170 INFO L78 Accepts]: Start accepts. Automaton has 4757 states and 6616 transitions. Word has length 88 [2021-11-21 01:13:04,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:13:04,171 INFO L470 AbstractCegarLoop]: Abstraction has 4757 states and 6616 transitions. [2021-11-21 01:13:04,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-21 01:13:04,172 INFO L276 IsEmpty]: Start isEmpty. Operand 4757 states and 6616 transitions. [2021-11-21 01:13:04,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-21 01:13:04,173 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:13:04,174 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:13:04,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-21 01:13:04,174 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)] === [2021-11-21 01:13:04,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:13:04,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1318290452, now seen corresponding path program 1 times [2021-11-21 01:13:04,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:13:04,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937467282] [2021-11-21 01:13:04,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:13:04,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:13:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:13:04,393 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:13:04,393 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:13:04,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937467282] [2021-11-21 01:13:04,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937467282] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:13:04,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:13:04,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:13:04,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112915343] [2021-11-21 01:13:04,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:13:04,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:13:04,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:13:04,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:13:04,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:13:04,396 INFO L87 Difference]: Start difference. First operand 4757 states and 6616 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-21 01:13:08,563 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:12,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:13:12,769 INFO L93 Difference]: Finished difference Result 4839 states and 6687 transitions. [2021-11-21 01:13:12,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:13:12,769 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 93 [2021-11-21 01:13:12,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:13:12,801 INFO L225 Difference]: With dead ends: 4839 [2021-11-21 01:13:12,801 INFO L226 Difference]: Without dead ends: 4837 [2021-11-21 01:13:12,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:13:12,807 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1762 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s 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, 8.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:13:12,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1764 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2021-11-21 01:13:12,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4837 states. [2021-11-21 01:13:13,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4837 to 4762. [2021-11-21 01:13:13,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4762 states, 3021 states have (on average 1.3270440251572326) internal successors, (4009), 3134 states have internal predecessors, (4009), 1273 states have call successors, (1273), 439 states have call predecessors, (1273), 438 states have return successors, (1338), 1232 states have call predecessors, (1338), 1271 states have call successors, (1338) [2021-11-21 01:13:13,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4762 states to 4762 states and 6620 transitions. [2021-11-21 01:13:13,280 INFO L78 Accepts]: Start accepts. Automaton has 4762 states and 6620 transitions. Word has length 93 [2021-11-21 01:13:13,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:13:13,280 INFO L470 AbstractCegarLoop]: Abstraction has 4762 states and 6620 transitions. [2021-11-21 01:13:13,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-21 01:13:13,281 INFO L276 IsEmpty]: Start isEmpty. Operand 4762 states and 6620 transitions. [2021-11-21 01:13:13,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-21 01:13:13,283 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:13:13,283 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:13:13,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-21 01:13:13,283 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)] === [2021-11-21 01:13:13,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:13:13,284 INFO L85 PathProgramCache]: Analyzing trace with hash 2025876837, now seen corresponding path program 1 times [2021-11-21 01:13:13,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:13:13,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338609278] [2021-11-21 01:13:13,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:13:13,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:13:13,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:13:13,472 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:13:13,473 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:13:13,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338609278] [2021-11-21 01:13:13,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338609278] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:13:13,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:13:13,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:13:13,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055705158] [2021-11-21 01:13:13,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:13:13,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:13:13,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:13:13,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:13:13,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:13:13,476 INFO L87 Difference]: Start difference. First operand 4762 states and 6620 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-21 01:13:17,657 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:20,583 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:13:23,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:13:23,106 INFO L93 Difference]: Finished difference Result 4837 states and 6684 transitions. [2021-11-21 01:13:23,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:13:23,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 98 [2021-11-21 01:13:23,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:13:23,130 INFO L225 Difference]: With dead ends: 4837 [2021-11-21 01:13:23,131 INFO L226 Difference]: Without dead ends: 4835 [2021-11-21 01:13:23,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:13:23,135 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1759 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s 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, 9.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:13:23,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1761 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 9.4s Time] [2021-11-21 01:13:23,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4835 states. [2021-11-21 01:13:23,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4835 to 4767. [2021-11-21 01:13:23,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4767 states, 3024 states have (on average 1.3263888888888888) internal successors, (4011), 3137 states have internal predecessors, (4011), 1274 states have call successors, (1274), 440 states have call predecessors, (1274), 439 states have return successors, (1339), 1233 states have call predecessors, (1339), 1272 states have call successors, (1339) [2021-11-21 01:13:23,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4767 states to 4767 states and 6624 transitions. [2021-11-21 01:13:23,662 INFO L78 Accepts]: Start accepts. Automaton has 4767 states and 6624 transitions. Word has length 98 [2021-11-21 01:13:23,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:13:23,663 INFO L470 AbstractCegarLoop]: Abstraction has 4767 states and 6624 transitions. [2021-11-21 01:13:23,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-21 01:13:23,664 INFO L276 IsEmpty]: Start isEmpty. Operand 4767 states and 6624 transitions. [2021-11-21 01:13:23,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-21 01:13:23,666 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:13:23,666 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:13:23,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-21 01:13:23,667 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)] === [2021-11-21 01:13:23,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:13:23,667 INFO L85 PathProgramCache]: Analyzing trace with hash 744733062, now seen corresponding path program 1 times [2021-11-21 01:13:23,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:13:23,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700038395] [2021-11-21 01:13:23,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:13:23,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:13:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:13:23,932 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:13:23,932 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:13:23,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700038395] [2021-11-21 01:13:23,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700038395] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:13:23,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:13:23,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:13:23,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837666457] [2021-11-21 01:13:23,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:13:23,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:13:23,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:13:23,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:13:23,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:13:23,935 INFO L87 Difference]: Start difference. First operand 4767 states and 6624 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-21 01:13:27,850 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:29,694 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:13:32,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:13:32,534 INFO L93 Difference]: Finished difference Result 4835 states and 6681 transitions. [2021-11-21 01:13:32,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:13:32,535 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 103 [2021-11-21 01:13:32,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:13:32,559 INFO L225 Difference]: With dead ends: 4835 [2021-11-21 01:13:32,560 INFO L226 Difference]: Without dead ends: 4833 [2021-11-21 01:13:32,563 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 [2021-11-21 01:13:32,565 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1756 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s 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, 8.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:13:32,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1758 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2021-11-21 01:13:32,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4833 states. [2021-11-21 01:13:33,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4833 to 4772. [2021-11-21 01:13:33,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4772 states, 3027 states have (on average 1.3257350512058144) internal successors, (4013), 3140 states have internal predecessors, (4013), 1275 states have call successors, (1275), 441 states have call predecessors, (1275), 440 states have return successors, (1340), 1234 states have call predecessors, (1340), 1273 states have call successors, (1340) [2021-11-21 01:13:33,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4772 states to 4772 states and 6628 transitions. [2021-11-21 01:13:33,060 INFO L78 Accepts]: Start accepts. Automaton has 4772 states and 6628 transitions. Word has length 103 [2021-11-21 01:13:33,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:13:33,061 INFO L470 AbstractCegarLoop]: Abstraction has 4772 states and 6628 transitions. [2021-11-21 01:13:33,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-21 01:13:33,061 INFO L276 IsEmpty]: Start isEmpty. Operand 4772 states and 6628 transitions. [2021-11-21 01:13:33,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-21 01:13:33,063 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:13:33,064 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:13:33,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-21 01:13:33,064 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)] === [2021-11-21 01:13:33,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:13:33,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1795991381, now seen corresponding path program 1 times [2021-11-21 01:13:33,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:13:33,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151346438] [2021-11-21 01:13:33,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:13:33,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:13:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:13:33,298 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:13:33,299 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:13:33,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151346438] [2021-11-21 01:13:33,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151346438] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:13:33,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:13:33,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:13:33,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928904613] [2021-11-21 01:13:33,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:13:33,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:13:33,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:13:33,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:13:33,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:13:33,304 INFO L87 Difference]: Start difference. First operand 4772 states and 6628 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-21 01:13:37,270 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:40,190 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:13:43,533 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:43,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:13:43,630 INFO L93 Difference]: Finished difference Result 4833 states and 6678 transitions. [2021-11-21 01:13:43,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:13:43,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 108 [2021-11-21 01:13:43,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:13:43,651 INFO L225 Difference]: With dead ends: 4833 [2021-11-21 01:13:43,651 INFO L226 Difference]: Without dead ends: 4831 [2021-11-21 01:13:43,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:13:43,656 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1753 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1755 SdHoareTripleChecker+Valid, 5085 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:13:43,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1755 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 856 Invalid, 2 Unknown, 0 Unchecked, 10.0s Time] [2021-11-21 01:13:43,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4831 states. [2021-11-21 01:13:44,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4831 to 4777. [2021-11-21 01:13:44,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4777 states, 3030 states have (on average 1.325082508250825) internal successors, (4015), 3143 states have internal predecessors, (4015), 1276 states have call successors, (1276), 442 states have call predecessors, (1276), 441 states have return successors, (1341), 1235 states have call predecessors, (1341), 1274 states have call successors, (1341) [2021-11-21 01:13:44,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4777 states to 4777 states and 6632 transitions. [2021-11-21 01:13:44,062 INFO L78 Accepts]: Start accepts. Automaton has 4777 states and 6632 transitions. Word has length 108 [2021-11-21 01:13:44,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:13:44,062 INFO L470 AbstractCegarLoop]: Abstraction has 4777 states and 6632 transitions. [2021-11-21 01:13:44,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-21 01:13:44,063 INFO L276 IsEmpty]: Start isEmpty. Operand 4777 states and 6632 transitions. [2021-11-21 01:13:44,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-21 01:13:44,065 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:13:44,065 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:13:44,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-21 01:13:44,066 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)] === [2021-11-21 01:13:44,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:13:44,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1007986358, now seen corresponding path program 1 times [2021-11-21 01:13:44,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:13:44,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534288252] [2021-11-21 01:13:44,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:13:44,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:13:44,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:13:44,279 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:13:44,280 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:13:44,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534288252] [2021-11-21 01:13:44,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534288252] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:13:44,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:13:44,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:13:44,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063532014] [2021-11-21 01:13:44,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:13:44,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:13:44,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:13:44,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:13:44,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:13:44,283 INFO L87 Difference]: Start difference. First operand 4777 states and 6632 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-21 01:13:48,377 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:13:52,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:13:52,589 INFO L93 Difference]: Finished difference Result 4831 states and 6675 transitions. [2021-11-21 01:13:52,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:13:52,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 113 [2021-11-21 01:13:52,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:13:52,610 INFO L225 Difference]: With dead ends: 4831 [2021-11-21 01:13:52,610 INFO L226 Difference]: Without dead ends: 4829 [2021-11-21 01:13:52,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:13:52,615 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1750 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s 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, 8.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:13:52,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1752 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2021-11-21 01:13:52,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4829 states. [2021-11-21 01:13:53,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4829 to 4782. [2021-11-21 01:13:53,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4782 states, 3033 states have (on average 1.324431256181998) internal successors, (4017), 3146 states have internal predecessors, (4017), 1277 states have call successors, (1277), 443 states have call predecessors, (1277), 442 states have return successors, (1342), 1236 states have call predecessors, (1342), 1275 states have call successors, (1342) [2021-11-21 01:13:53,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4782 states to 4782 states and 6636 transitions. [2021-11-21 01:13:53,099 INFO L78 Accepts]: Start accepts. Automaton has 4782 states and 6636 transitions. Word has length 113 [2021-11-21 01:13:53,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:13:53,101 INFO L470 AbstractCegarLoop]: Abstraction has 4782 states and 6636 transitions. [2021-11-21 01:13:53,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-21 01:13:53,101 INFO L276 IsEmpty]: Start isEmpty. Operand 4782 states and 6636 transitions. [2021-11-21 01:13:53,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-21 01:13:53,105 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:13:53,105 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:13:53,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-21 01:13:53,106 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)] === [2021-11-21 01:13:53,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:13:53,106 INFO L85 PathProgramCache]: Analyzing trace with hash -2030243096, now seen corresponding path program 1 times [2021-11-21 01:13:53,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:13:53,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109699015] [2021-11-21 01:13:53,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:13:53,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:13:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:13:53,322 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:13:53,322 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:13:53,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109699015] [2021-11-21 01:13:53,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109699015] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:13:53,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:13:53,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:13:53,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176140650] [2021-11-21 01:13:53,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:13:53,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:13:53,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:13:53,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:13:53,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:13:53,326 INFO L87 Difference]: Start difference. First operand 4782 states and 6636 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-21 01:13:57,424 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:14:02,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:14:02,150 INFO L93 Difference]: Finished difference Result 4829 states and 6672 transitions. [2021-11-21 01:14:02,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:14:02,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 118 [2021-11-21 01:14:02,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:14:02,171 INFO L225 Difference]: With dead ends: 4829 [2021-11-21 01:14:02,171 INFO L226 Difference]: Without dead ends: 4827 [2021-11-21 01:14:02,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:14:02,175 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 1747 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s 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, 8.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:14:02,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1749 Valid, 5085 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2021-11-21 01:14:02,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4827 states. [2021-11-21 01:14:02,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4827 to 4787. [2021-11-21 01:14:02,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4787 states, 3036 states have (on average 1.3237812911725955) internal successors, (4019), 3149 states have internal predecessors, (4019), 1278 states have call successors, (1278), 444 states have call predecessors, (1278), 443 states have return successors, (1343), 1237 states have call predecessors, (1343), 1276 states have call successors, (1343) [2021-11-21 01:14:02,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4787 states to 4787 states and 6640 transitions. [2021-11-21 01:14:02,675 INFO L78 Accepts]: Start accepts. Automaton has 4787 states and 6640 transitions. Word has length 118 [2021-11-21 01:14:02,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:14:02,675 INFO L470 AbstractCegarLoop]: Abstraction has 4787 states and 6640 transitions. [2021-11-21 01:14:02,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-21 01:14:02,676 INFO L276 IsEmpty]: Start isEmpty. Operand 4787 states and 6640 transitions. [2021-11-21 01:14:02,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-21 01:14:02,677 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:14:02,678 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:14:02,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-21 01:14:02,678 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)] === [2021-11-21 01:14:02,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:14:02,679 INFO L85 PathProgramCache]: Analyzing trace with hash -791045974, now seen corresponding path program 1 times [2021-11-21 01:14:02,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:14:02,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538717140] [2021-11-21 01:14:02,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:14:02,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:14:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:14:02,891 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:14:02,891 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:14:02,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538717140] [2021-11-21 01:14:02,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538717140] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:14:02,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:14:02,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:14:02,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723139929] [2021-11-21 01:14:02,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:14:02,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:14:02,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:14:02,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:14:02,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:14:02,894 INFO L87 Difference]: Start difference. First operand 4787 states and 6640 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-21 01:14:06,717 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:14:09,667 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:14:12,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:14:12,550 INFO L93 Difference]: Finished difference Result 8145 states and 11511 transitions. [2021-11-21 01:14:12,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:14:12,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 123 [2021-11-21 01:14:12,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:14:12,575 INFO L225 Difference]: With dead ends: 8145 [2021-11-21 01:14:12,575 INFO L226 Difference]: Without dead ends: 8143 [2021-11-21 01:14:12,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:14:12,579 INFO L933 BasicCegarLoop]: 1935 mSDtfsCounter, 1687 mSDsluCounter, 3987 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1689 SdHoareTripleChecker+Valid, 5327 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:14:12,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1689 Valid, 5327 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 926 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2021-11-21 01:14:12,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8143 states. [2021-11-21 01:14:13,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8143 to 8048. [2021-11-21 01:14:13,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8048 states, 5131 states have (on average 1.3260572987721693) internal successors, (6804), 5318 states have internal predecessors, (6804), 2127 states have call successors, (2127), 765 states have call predecessors, (2127), 760 states have return successors, (2487), 2042 states have call predecessors, (2487), 2125 states have call successors, (2487) [2021-11-21 01:14:13,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8048 states to 8048 states and 11418 transitions. [2021-11-21 01:14:13,258 INFO L78 Accepts]: Start accepts. Automaton has 8048 states and 11418 transitions. Word has length 123 [2021-11-21 01:14:13,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:14:13,259 INFO L470 AbstractCegarLoop]: Abstraction has 8048 states and 11418 transitions. [2021-11-21 01:14:13,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-21 01:14:13,259 INFO L276 IsEmpty]: Start isEmpty. Operand 8048 states and 11418 transitions. [2021-11-21 01:14:13,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-21 01:14:13,261 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:14:13,261 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:14:13,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-21 01:14:13,262 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)] === [2021-11-21 01:14:13,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:14:13,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1208317547, now seen corresponding path program 1 times [2021-11-21 01:14:13,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:14:13,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642477386] [2021-11-21 01:14:13,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:14:13,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:14:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:14:13,461 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:14:13,461 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:14:13,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642477386] [2021-11-21 01:14:13,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642477386] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:14:13,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:14:13,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:14:13,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085757554] [2021-11-21 01:14:13,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:14:13,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:14:13,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:14:13,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:14:13,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:14:13,465 INFO L87 Difference]: Start difference. First operand 8048 states and 11418 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-21 01:14:17,317 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:14:19,535 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:14:22,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:14:22,939 INFO L93 Difference]: Finished difference Result 8088 states and 11447 transitions. [2021-11-21 01:14:22,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:14:22,939 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 128 [2021-11-21 01:14:22,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:14:22,961 INFO L225 Difference]: With dead ends: 8088 [2021-11-21 01:14:22,961 INFO L226 Difference]: Without dead ends: 8086 [2021-11-21 01:14:22,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:14:22,964 INFO L933 BasicCegarLoop]: 1842 mSDtfsCounter, 1743 mSDsluCounter, 3813 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s 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, 8.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:14:22,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1745 Valid, 5089 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2021-11-21 01:14:22,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8086 states. [2021-11-21 01:14:23,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8086 to 8058. [2021-11-21 01:14:23,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8058 states, 5137 states have (on average 1.3256764648627604) internal successors, (6810), 5324 states have internal predecessors, (6810), 2129 states have call successors, (2129), 767 states have call predecessors, (2129), 762 states have return successors, (2489), 2044 states have call predecessors, (2489), 2127 states have call successors, (2489) [2021-11-21 01:14:23,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8058 states to 8058 states and 11428 transitions. [2021-11-21 01:14:23,561 INFO L78 Accepts]: Start accepts. Automaton has 8058 states and 11428 transitions. Word has length 128 [2021-11-21 01:14:23,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:14:23,561 INFO L470 AbstractCegarLoop]: Abstraction has 8058 states and 11428 transitions. [2021-11-21 01:14:23,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-21 01:14:23,562 INFO L276 IsEmpty]: Start isEmpty. Operand 8058 states and 11428 transitions. [2021-11-21 01:14:23,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-21 01:14:23,565 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:14:23,565 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:14:23,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-21 01:14:23,566 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)] === [2021-11-21 01:14:23,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:14:23,566 INFO L85 PathProgramCache]: Analyzing trace with hash 714053222, now seen corresponding path program 1 times [2021-11-21 01:14:23,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:14:23,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857376080] [2021-11-21 01:14:23,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:14:23,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:14:23,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:14:23,911 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:14:23,911 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:14:23,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857376080] [2021-11-21 01:14:23,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857376080] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:14:23,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:14:23,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:14:23,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338715505] [2021-11-21 01:14:23,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:14:23,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:14:23,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:14:23,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:14:23,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:14:23,915 INFO L87 Difference]: Start difference. First operand 8058 states and 11428 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 01:14:28,142 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:14:31,608 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:14:34,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:14:34,207 INFO L93 Difference]: Finished difference Result 14487 states and 21226 transitions. [2021-11-21 01:14:34,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:14:34,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 133 [2021-11-21 01:14:34,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:14:34,279 INFO L225 Difference]: With dead ends: 14487 [2021-11-21 01:14:34,279 INFO L226 Difference]: Without dead ends: 14277 [2021-11-21 01:14:34,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:14:34,302 INFO L933 BasicCegarLoop]: 1903 mSDtfsCounter, 1646 mSDsluCounter, 3953 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1646 SdHoareTripleChecker+Valid, 5263 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:14:34,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1646 Valid, 5263 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 920 Invalid, 1 Unknown, 0 Unchecked, 9.3s Time] [2021-11-21 01:14:34,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14277 states. [2021-11-21 01:14:35,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14277 to 14180. [2021-11-21 01:14:35,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14180 states, 9124 states have (on average 1.3319815870232354) internal successors, (12153), 9455 states have internal predecessors, (12153), 3668 states have call successors, (3668), 1373 states have call predecessors, (3668), 1358 states have return successors, (5053), 3497 states have call predecessors, (5053), 3665 states have call successors, (5053) [2021-11-21 01:14:35,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14180 states to 14180 states and 20874 transitions. [2021-11-21 01:14:35,823 INFO L78 Accepts]: Start accepts. Automaton has 14180 states and 20874 transitions. Word has length 133 [2021-11-21 01:14:35,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:14:35,823 INFO L470 AbstractCegarLoop]: Abstraction has 14180 states and 20874 transitions. [2021-11-21 01:14:35,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 01:14:35,824 INFO L276 IsEmpty]: Start isEmpty. Operand 14180 states and 20874 transitions. [2021-11-21 01:14:35,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2021-11-21 01:14:35,828 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:14:35,828 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] [2021-11-21 01:14:35,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-21 01:14:35,829 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)] === [2021-11-21 01:14:35,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:14:35,830 INFO L85 PathProgramCache]: Analyzing trace with hash 475064825, now seen corresponding path program 1 times [2021-11-21 01:14:35,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:14:35,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578836185] [2021-11-21 01:14:35,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:14:35,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:14:36,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:14:36,856 INFO L134 CoverageAnalysis]: Checked inductivity of 4011 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4011 trivial. 0 not checked. [2021-11-21 01:14:36,857 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:14:36,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578836185] [2021-11-21 01:14:36,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578836185] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:14:36,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:14:36,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:14:36,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619155469] [2021-11-21 01:14:36,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:14:36,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:14:36,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:14:36,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:14:36,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:14:36,860 INFO L87 Difference]: Start difference. First operand 14180 states and 20874 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) [2021-11-21 01:14:43,371 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:14:45,982 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:14:49,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:14:49,134 INFO L93 Difference]: Finished difference Result 28307 states and 43359 transitions. [2021-11-21 01:14:49,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:14:49,137 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 [2021-11-21 01:14:49,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:14:49,199 INFO L225 Difference]: With dead ends: 28307 [2021-11-21 01:14:49,199 INFO L226 Difference]: Without dead ends: 14184 [2021-11-21 01:14:49,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:14:49,347 INFO L933 BasicCegarLoop]: 1482 mSDtfsCounter, 5 mSDsluCounter, 3530 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4444 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:14:49,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 4444 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 861 Invalid, 2 Unknown, 0 Unchecked, 10.9s Time] [2021-11-21 01:14:49,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14184 states. [2021-11-21 01:14:51,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14184 to 14182. [2021-11-21 01:14:51,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14182 states, 9126 states have (on average 1.3301555993863685) internal successors, (12139), 9465 states have internal predecessors, (12139), 3660 states have call successors, (3660), 1373 states have call predecessors, (3660), 1366 states have return successors, (5049), 3489 states have call predecessors, (5049), 3657 states have call successors, (5049) [2021-11-21 01:14:51,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14182 states to 14182 states and 20848 transitions. [2021-11-21 01:14:51,146 INFO L78 Accepts]: Start accepts. Automaton has 14182 states and 20848 transitions. Word has length 395 [2021-11-21 01:14:51,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:14:51,148 INFO L470 AbstractCegarLoop]: Abstraction has 14182 states and 20848 transitions. [2021-11-21 01:14:51,148 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) [2021-11-21 01:14:51,148 INFO L276 IsEmpty]: Start isEmpty. Operand 14182 states and 20848 transitions. [2021-11-21 01:14:51,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2021-11-21 01:14:51,152 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:14:51,153 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] [2021-11-21 01:14:51,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-21 01:14:51,153 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)] === [2021-11-21 01:14:51,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:14:51,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1264833804, now seen corresponding path program 1 times [2021-11-21 01:14:51,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:14:51,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434152362] [2021-11-21 01:14:51,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:14:51,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:14:51,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:14:52,184 INFO L134 CoverageAnalysis]: Checked inductivity of 4019 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4019 trivial. 0 not checked. [2021-11-21 01:14:52,184 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:14:52,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434152362] [2021-11-21 01:14:52,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434152362] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:14:52,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:14:52,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-21 01:14:52,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868588422] [2021-11-21 01:14:52,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:14:52,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-21 01:14:52,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:14:52,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-21 01:14:52,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:14:52,187 INFO L87 Difference]: Start difference. First operand 14182 states and 20848 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) [2021-11-21 01:15:03,903 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:07,649 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:15:15,439 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:15:23,982 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:26,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:15:26,147 INFO L93 Difference]: Finished difference Result 21040 states and 31686 transitions. [2021-11-21 01:15:26,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-21 01:15:26,148 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 [2021-11-21 01:15:26,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:15:26,268 INFO L225 Difference]: With dead ends: 21040 [2021-11-21 01:15:26,268 INFO L226 Difference]: Without dead ends: 21038 [2021-11-21 01:15:26,281 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 [2021-11-21 01:15:26,282 INFO L933 BasicCegarLoop]: 4198 mSDtfsCounter, 5370 mSDsluCounter, 13172 mSDsCounter, 0 mSdLazyCounter, 5422 mSolverCounterSat, 1355 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5370 SdHoareTripleChecker+Valid, 14880 SdHoareTripleChecker+Invalid, 6778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1355 IncrementalHoareTripleChecker+Valid, 5422 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:15:26,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5370 Valid, 14880 Invalid, 6778 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1355 Valid, 5422 Invalid, 1 Unknown, 0 Unchecked, 31.7s Time] [2021-11-21 01:15:26,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21038 states. [2021-11-21 01:15:28,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21038 to 20484. [2021-11-21 01:15:28,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20484 states, 13196 states have (on average 1.3333585935131858) internal successors, (17595), 13687 states have internal predecessors, (17595), 5288 states have call successors, (5288), 1959 states have call predecessors, (5288), 1970 states have return successors, (8247), 5051 states have call predecessors, (8247), 5285 states have call successors, (8247) [2021-11-21 01:15:28,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20484 states to 20484 states and 31130 transitions. [2021-11-21 01:15:28,417 INFO L78 Accepts]: Start accepts. Automaton has 20484 states and 31130 transitions. Word has length 399 [2021-11-21 01:15:28,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:15:28,418 INFO L470 AbstractCegarLoop]: Abstraction has 20484 states and 31130 transitions. [2021-11-21 01:15:28,418 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) [2021-11-21 01:15:28,419 INFO L276 IsEmpty]: Start isEmpty. Operand 20484 states and 31130 transitions. [2021-11-21 01:15:28,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2021-11-21 01:15:28,423 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:15:28,424 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] [2021-11-21 01:15:28,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-21 01:15:28,424 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)] === [2021-11-21 01:15:28,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:15:28,425 INFO L85 PathProgramCache]: Analyzing trace with hash -980313287, now seen corresponding path program 1 times [2021-11-21 01:15:28,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:15:28,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567394238] [2021-11-21 01:15:28,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:15:28,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:15:28,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:15:28,892 INFO L134 CoverageAnalysis]: Checked inductivity of 4308 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4308 trivial. 0 not checked. [2021-11-21 01:15:28,892 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:15:28,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567394238] [2021-11-21 01:15:28,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567394238] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:15:28,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:15:28,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:15:28,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069023777] [2021-11-21 01:15:28,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:15:28,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:15:28,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:15:28,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:15:28,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:15:28,896 INFO L87 Difference]: Start difference. First operand 20484 states and 31130 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) [2021-11-21 01:15:33,600 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:15:36,303 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:15:40,606 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:15:47,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:15:47,228 INFO L93 Difference]: Finished difference Result 39177 states and 63513 transitions. [2021-11-21 01:15:47,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:15:47,228 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 [2021-11-21 01:15:47,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:15:47,483 INFO L225 Difference]: With dead ends: 39177 [2021-11-21 01:15:47,483 INFO L226 Difference]: Without dead ends: 39175 [2021-11-21 01:15:47,508 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 [2021-11-21 01:15:47,509 INFO L933 BasicCegarLoop]: 2313 mSDtfsCounter, 1588 mSDsluCounter, 7119 mSDsCounter, 0 mSdLazyCounter, 1488 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s 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, 15.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:15:47,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1591 Valid, 8359 Invalid, 1492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1488 Invalid, 1 Unknown, 0 Unchecked, 15.0s Time] [2021-11-21 01:15:47,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39175 states. [2021-11-21 01:15:51,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39175 to 38476. [2021-11-21 01:15:51,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38476 states, 24640 states have (on average 1.3290584415584417) internal successors, (32748), 25679 states have internal predecessors, (32748), 10027 states have call successors, (10027), 3804 states have call predecessors, (10027), 3779 states have return successors, (20019), 9370 states have call predecessors, (20019), 10024 states have call successors, (20019) [2021-11-21 01:15:51,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38476 states to 38476 states and 62794 transitions. [2021-11-21 01:15:51,742 INFO L78 Accepts]: Start accepts. Automaton has 38476 states and 62794 transitions. Word has length 445 [2021-11-21 01:15:51,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:15:51,743 INFO L470 AbstractCegarLoop]: Abstraction has 38476 states and 62794 transitions. [2021-11-21 01:15:51,743 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) [2021-11-21 01:15:51,743 INFO L276 IsEmpty]: Start isEmpty. Operand 38476 states and 62794 transitions. [2021-11-21 01:15:51,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2021-11-21 01:15:51,753 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:15:51,754 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] [2021-11-21 01:15:51,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-21 01:15:51,755 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)] === [2021-11-21 01:15:51,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:15:51,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1233760715, now seen corresponding path program 1 times [2021-11-21 01:15:51,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:15:51,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730640361] [2021-11-21 01:15:51,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:15:51,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:15:52,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:15:53,146 INFO L134 CoverageAnalysis]: Checked inductivity of 4322 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4322 trivial. 0 not checked. [2021-11-21 01:15:53,146 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:15:53,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730640361] [2021-11-21 01:15:53,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730640361] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:15:53,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:15:53,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-21 01:15:53,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642608461] [2021-11-21 01:15:53,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:15:53,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 01:15:53,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:15:53,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 01:15:53,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:15:53,150 INFO L87 Difference]: Start difference. First operand 38476 states and 62794 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) [2021-11-21 01:16:01,253 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:16:06,323 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:16:14,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:14,910 INFO L93 Difference]: Finished difference Result 51173 states and 83792 transitions. [2021-11-21 01:16:14,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 01:16:14,911 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 [2021-11-21 01:16:14,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:15,391 INFO L225 Difference]: With dead ends: 51173 [2021-11-21 01:16:15,392 INFO L226 Difference]: Without dead ends: 51171 [2021-11-21 01:16:15,421 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 [2021-11-21 01:16:15,424 INFO L933 BasicCegarLoop]: 1914 mSDtfsCounter, 2121 mSDsluCounter, 9822 mSDsCounter, 0 mSdLazyCounter, 1976 mSolverCounterSat, 823 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2122 SdHoareTripleChecker+Valid, 10192 SdHoareTripleChecker+Invalid, 2800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 823 IncrementalHoareTripleChecker+Valid, 1976 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:15,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2122 Valid, 10192 Invalid, 2800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [823 Valid, 1976 Invalid, 1 Unknown, 0 Unchecked, 17.1s Time] [2021-11-21 01:16:15,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51171 states. [2021-11-21 01:16:20,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51171 to 51132. [2021-11-21 01:16:20,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51132 states, 32729 states have (on average 1.3260411256072595) internal successors, (43400), 34211 states have internal predecessors, (43400), 13060 states have call successors, (13060), 5324 states have call predecessors, (13060), 5313 states have return successors, (27274), 12149 states have call predecessors, (27274), 13057 states have call successors, (27274) [2021-11-21 01:16:21,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51132 states to 51132 states and 83734 transitions. [2021-11-21 01:16:21,310 INFO L78 Accepts]: Start accepts. Automaton has 51132 states and 83734 transitions. Word has length 462 [2021-11-21 01:16:21,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:21,311 INFO L470 AbstractCegarLoop]: Abstraction has 51132 states and 83734 transitions. [2021-11-21 01:16:21,311 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) [2021-11-21 01:16:21,311 INFO L276 IsEmpty]: Start isEmpty. Operand 51132 states and 83734 transitions. [2021-11-21 01:16:21,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2021-11-21 01:16:21,326 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:21,327 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] [2021-11-21 01:16:21,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-21 01:16:21,327 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)] === [2021-11-21 01:16:21,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:21,328 INFO L85 PathProgramCache]: Analyzing trace with hash 2120523281, now seen corresponding path program 1 times [2021-11-21 01:16:21,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:21,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260560103] [2021-11-21 01:16:21,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:21,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:22,149 INFO L134 CoverageAnalysis]: Checked inductivity of 4322 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4322 trivial. 0 not checked. [2021-11-21 01:16:22,157 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:22,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260560103] [2021-11-21 01:16:22,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260560103] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:22,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:22,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-21 01:16:22,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165714667] [2021-11-21 01:16:22,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:22,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 01:16:22,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:22,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 01:16:22,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:16:22,162 INFO L87 Difference]: Start difference. First operand 51132 states and 83734 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) [2021-11-21 01:16:30,290 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:16:33,207 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:16:44,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:44,565 INFO L93 Difference]: Finished difference Result 71330 states and 115240 transitions. [2021-11-21 01:16:44,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 01:16:44,566 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 [2021-11-21 01:16:44,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:45,075 INFO L225 Difference]: With dead ends: 71330 [2021-11-21 01:16:45,075 INFO L226 Difference]: Without dead ends: 71328 [2021-11-21 01:16:45,123 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 [2021-11-21 01:16:45,124 INFO L933 BasicCegarLoop]: 1954 mSDtfsCounter, 2121 mSDsluCounter, 9913 mSDsCounter, 0 mSdLazyCounter, 2003 mSolverCounterSat, 823 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2122 SdHoareTripleChecker+Valid, 10309 SdHoareTripleChecker+Invalid, 2828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 823 IncrementalHoareTripleChecker+Valid, 2003 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:45,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2122 Valid, 10309 Invalid, 2828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [823 Valid, 2003 Invalid, 2 Unknown, 0 Unchecked, 16.3s Time] [2021-11-21 01:16:45,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71328 states. [2021-11-21 01:16:51,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71328 to 70364. [2021-11-21 01:16:51,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70364 states, 44858 states have (on average 1.3212804850862723) internal successors, (59270), 46976 states have internal predecessors, (59270), 17602 states have call successors, (17602), 7864 states have call predecessors, (17602), 7874 states have return successors, (37235), 16326 states have call predecessors, (37235), 17599 states have call successors, (37235) [2021-11-21 01:16:52,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70364 states to 70364 states and 114107 transitions. [2021-11-21 01:16:52,626 INFO L78 Accepts]: Start accepts. Automaton has 70364 states and 114107 transitions. Word has length 461 [2021-11-21 01:16:52,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:52,627 INFO L470 AbstractCegarLoop]: Abstraction has 70364 states and 114107 transitions. [2021-11-21 01:16:52,627 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) [2021-11-21 01:16:52,628 INFO L276 IsEmpty]: Start isEmpty. Operand 70364 states and 114107 transitions. [2021-11-21 01:16:52,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2021-11-21 01:16:52,638 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:52,639 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] [2021-11-21 01:16:52,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-21 01:16:52,639 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)] === [2021-11-21 01:16:52,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:52,640 INFO L85 PathProgramCache]: Analyzing trace with hash -911047320, now seen corresponding path program 1 times [2021-11-21 01:16:52,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:52,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622082309] [2021-11-21 01:16:52,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:52,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:53,176 INFO L134 CoverageAnalysis]: Checked inductivity of 4350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4350 trivial. 0 not checked. [2021-11-21 01:16:53,176 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:53,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622082309] [2021-11-21 01:16:53,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622082309] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:53,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:53,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:16:53,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026356031] [2021-11-21 01:16:53,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:53,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:16:53,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:53,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:16:53,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:16:53,179 INFO L87 Difference]: Start difference. First operand 70364 states and 114107 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) [2021-11-21 01:16:58,490 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:17:04,462 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:17:17,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:17:17,863 INFO L93 Difference]: Finished difference Result 137433 states and 240232 transitions. [2021-11-21 01:17:17,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:17:17,863 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 [2021-11-21 01:17:17,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted.