./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--net--ethernet--atheros--atl1e--atl1e.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs --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 98f562a8edcec740524cc6f5ce26ff67bd28ae5ab18bd4408db10af8ffec4be5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:00:37,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:00:37,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:00:37,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:00:37,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:00:37,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:00:37,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:00:37,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:00:37,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:00:37,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:00:37,918 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:00:37,919 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:00:37,920 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:00:37,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:00:37,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:00:37,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:00:37,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:00:37,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:00:37,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:00:37,952 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:00:37,954 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:00:37,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:00:37,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:00:37,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:00:37,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:00:37,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:00:37,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:00:37,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:00:37,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:00:37,974 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:00:37,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:00:37,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:00:37,978 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:00:37,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:00:37,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:00:37,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:00:37,983 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:00:37,983 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:00:37,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:00:37,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:00:37,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:00:37,986 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:00:38,038 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:00:38,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:00:38,042 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:00:38,042 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:00:38,042 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:00:38,043 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:00:38,043 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:00:38,043 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:00:38,043 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:00:38,044 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:00:38,045 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:00:38,045 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:00:38,045 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:00:38,046 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:00:38,046 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:00:38,046 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:00:38,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:00:38,047 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:00:38,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:00:38,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:00:38,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:00:38,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:00:38,049 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:00:38,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:00:38,049 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:00:38,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:00:38,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:00:38,050 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:00:38,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:00:38,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:00:38,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:00:38,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:00:38,053 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:00:38,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:00:38,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:00:38,053 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:00:38,054 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:00:38,054 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_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98f562a8edcec740524cc6f5ce26ff67bd28ae5ab18bd4408db10af8ffec4be5 [2021-11-19 14:00:38,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:00:38,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:00:38,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:00:38,346 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:00:38,347 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:00:38,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i [2021-11-19 14:00:38,447 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/data/b5042abc1/4a4f467487834bdda66d72b7d0cef47f/FLAG1f2680d29 [2021-11-19 14:00:39,437 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:00:39,438 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i [2021-11-19 14:00:39,530 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/data/b5042abc1/4a4f467487834bdda66d72b7d0cef47f/FLAG1f2680d29 [2021-11-19 14:00:39,745 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/data/b5042abc1/4a4f467487834bdda66d72b7d0cef47f [2021-11-19 14:00:39,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:00:39,750 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:00:39,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:00:39,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:00:39,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:00:39,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:00:39" (1/1) ... [2021-11-19 14:00:39,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e533fa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:39, skipping insertion in model container [2021-11-19 14:00:39,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:00:39" (1/1) ... [2021-11-19 14:00:39,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:00:39,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:00:42,971 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:42,992 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:43,027 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:43,031 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:43,381 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:46,505 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534178,534191] [2021-11-19 14:00:46,510 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534323,534336] [2021-11-19 14:00:46,511 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534469,534482] [2021-11-19 14:00:46,511 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534634,534647] [2021-11-19 14:00:46,514 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534792,534805] [2021-11-19 14:00:46,515 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534950,534963] [2021-11-19 14:00:46,515 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535108,535121] [2021-11-19 14:00:46,516 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535268,535281] [2021-11-19 14:00:46,516 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535427,535440] [2021-11-19 14:00:46,516 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535566,535579] [2021-11-19 14:00:46,517 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535708,535721] [2021-11-19 14:00:46,517 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535857,535870] [2021-11-19 14:00:46,518 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535996,536009] [2021-11-19 14:00:46,518 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536151,536164] [2021-11-19 14:00:46,519 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536311,536324] [2021-11-19 14:00:46,519 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536462,536475] [2021-11-19 14:00:46,520 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536613,536626] [2021-11-19 14:00:46,520 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536765,536778] [2021-11-19 14:00:46,520 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536914,536927] [2021-11-19 14:00:46,521 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537062,537075] [2021-11-19 14:00:46,521 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537219,537232] [2021-11-19 14:00:46,522 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537368,537381] [2021-11-19 14:00:46,522 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537524,537537] [2021-11-19 14:00:46,522 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537677,537690] [2021-11-19 14:00:46,523 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537823,537836] [2021-11-19 14:00:46,523 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537966,537979] [2021-11-19 14:00:46,524 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538118,538131] [2021-11-19 14:00:46,524 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538264,538277] [2021-11-19 14:00:46,524 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538409,538422] [2021-11-19 14:00:46,525 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538563,538576] [2021-11-19 14:00:46,525 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538714,538727] [2021-11-19 14:00:46,525 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538869,538882] [2021-11-19 14:00:46,526 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539021,539034] [2021-11-19 14:00:46,526 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539176,539189] [2021-11-19 14:00:46,540 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539340,539353] [2021-11-19 14:00:46,540 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539496,539509] [2021-11-19 14:00:46,541 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539660,539673] [2021-11-19 14:00:46,541 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539802,539815] [2021-11-19 14:00:46,541 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539960,539973] [2021-11-19 14:00:46,542 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540127,540140] [2021-11-19 14:00:46,547 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540286,540299] [2021-11-19 14:00:46,548 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540445,540458] [2021-11-19 14:00:46,548 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540594,540607] [2021-11-19 14:00:46,549 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540741,540754] [2021-11-19 14:00:46,549 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540880,540893] [2021-11-19 14:00:46,550 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541043,541056] [2021-11-19 14:00:46,552 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541209,541222] [2021-11-19 14:00:46,552 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541373,541386] [2021-11-19 14:00:46,554 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541538,541551] [2021-11-19 14:00:46,556 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541703,541716] [2021-11-19 14:00:46,556 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541869,541882] [2021-11-19 14:00:46,557 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542034,542047] [2021-11-19 14:00:46,557 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542201,542214] [2021-11-19 14:00:46,558 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542361,542374] [2021-11-19 14:00:46,563 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542523,542536] [2021-11-19 14:00:46,563 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542682,542695] [2021-11-19 14:00:46,564 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542828,542841] [2021-11-19 14:00:46,564 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542971,542984] [2021-11-19 14:00:46,565 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543115,543128] [2021-11-19 14:00:46,565 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543258,543271] [2021-11-19 14:00:46,566 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543402,543415] [2021-11-19 14:00:46,566 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543543,543556] [2021-11-19 14:00:46,567 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543681,543694] [2021-11-19 14:00:46,567 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543839,543852] [2021-11-19 14:00:46,568 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543998,544011] [2021-11-19 14:00:46,568 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544154,544167] [2021-11-19 14:00:46,569 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544303,544316] [2021-11-19 14:00:46,569 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544455,544468] [2021-11-19 14:00:46,570 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544606,544619] [2021-11-19 14:00:46,570 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544755,544768] [2021-11-19 14:00:46,571 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544907,544920] [2021-11-19 14:00:46,571 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545055,545068] [2021-11-19 14:00:46,572 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545208,545221] [2021-11-19 14:00:46,572 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545359,545372] [2021-11-19 14:00:46,573 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545509,545522] [2021-11-19 14:00:46,573 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545656,545669] [2021-11-19 14:00:46,574 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545807,545820] [2021-11-19 14:00:46,574 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545958,545971] [2021-11-19 14:00:46,575 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546106,546119] [2021-11-19 14:00:46,575 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546272,546285] [2021-11-19 14:00:46,576 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546441,546454] [2021-11-19 14:00:46,576 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546608,546621] [2021-11-19 14:00:46,577 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546776,546789] [2021-11-19 14:00:46,577 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546926,546939] [2021-11-19 14:00:46,578 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547073,547086] [2021-11-19 14:00:46,578 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547234,547247] [2021-11-19 14:00:46,579 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547404,547417] [2021-11-19 14:00:46,579 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547566,547579] [2021-11-19 14:00:46,608 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:00:46,685 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:00:46,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4bfc094f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:46, skipping insertion in model container [2021-11-19 14:00:46,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:00:46,686 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:00:46,688 INFO L158 Benchmark]: Toolchain (without parser) took 6937.31ms. Allocated memory was 117.4MB in the beginning and 188.7MB in the end (delta: 71.3MB). Free memory was 83.5MB in the beginning and 119.7MB in the end (delta: -36.2MB). Peak memory consumption was 88.0MB. Max. memory is 16.1GB. [2021-11-19 14:00:46,689 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 96.5MB. Free memory was 66.9MB in the beginning and 66.9MB in the end (delta: 24.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:00:46,690 INFO L158 Benchmark]: CACSL2BoogieTranslator took 6934.49ms. Allocated memory was 117.4MB in the beginning and 188.7MB in the end (delta: 71.3MB). Free memory was 83.5MB in the beginning and 119.7MB in the end (delta: -36.2MB). Peak memory consumption was 88.0MB. Max. memory is 16.1GB. [2021-11-19 14:00:46,696 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 96.5MB. Free memory was 66.9MB in the beginning and 66.9MB in the end (delta: 24.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 6934.49ms. Allocated memory was 117.4MB in the beginning and 188.7MB in the end (delta: 71.3MB). Free memory was 83.5MB in the beginning and 119.7MB in the end (delta: -36.2MB). Peak memory consumption was 88.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7811]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs --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 98f562a8edcec740524cc6f5ce26ff67bd28ae5ab18bd4408db10af8ffec4be5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:00:48,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:00:48,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:00:48,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:00:48,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:00:48,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:00:48,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:00:48,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:00:48,988 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:00:48,996 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:00:48,998 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:00:49,000 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:00:49,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:00:49,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:00:49,005 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:00:49,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:00:49,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:00:49,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:00:49,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:00:49,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:00:49,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:00:49,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:00:49,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:00:49,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:00:49,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:00:49,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:00:49,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:00:49,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:00:49,045 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:00:49,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:00:49,046 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:00:49,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:00:49,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:00:49,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:00:49,052 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:00:49,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:00:49,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:00:49,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:00:49,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:00:49,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:00:49,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:00:49,062 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:00:49,106 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:00:49,107 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:00:49,108 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:00:49,108 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:00:49,109 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:00:49,109 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:00:49,109 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:00:49,109 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:00:49,110 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:00:49,110 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:00:49,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:00:49,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:00:49,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:00:49,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:00:49,113 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:00:49,113 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:00:49,114 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:00:49,114 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:00:49,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:00:49,114 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:00:49,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:00:49,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:00:49,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:00:49,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:00:49,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:00:49,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:00:49,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:00:49,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:00:49,116 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:00:49,116 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:00:49,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:00:49,117 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:00:49,117 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:00:49,117 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98f562a8edcec740524cc6f5ce26ff67bd28ae5ab18bd4408db10af8ffec4be5 [2021-11-19 14:00:49,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:00:49,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:00:49,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:00:49,507 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:00:49,508 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:00:49,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i [2021-11-19 14:00:49,603 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/data/0dbb6dc7d/9ba752a6f62d46fe971bcc92f8e9461e/FLAG75e2fd972 [2021-11-19 14:00:50,691 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:00:50,693 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i [2021-11-19 14:00:50,792 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/data/0dbb6dc7d/9ba752a6f62d46fe971bcc92f8e9461e/FLAG75e2fd972 [2021-11-19 14:00:50,952 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/data/0dbb6dc7d/9ba752a6f62d46fe971bcc92f8e9461e [2021-11-19 14:00:50,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:00:50,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:00:50,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:00:50,961 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:00:50,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:00:50,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:00:50" (1/1) ... [2021-11-19 14:00:50,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23eb4f26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:50, skipping insertion in model container [2021-11-19 14:00:50,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:00:50" (1/1) ... [2021-11-19 14:00:50,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:00:51,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:00:58,049 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534178,534191] [2021-11-19 14:00:58,052 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534323,534336] [2021-11-19 14:00:58,053 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534469,534482] [2021-11-19 14:00:58,054 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534634,534647] [2021-11-19 14:00:58,054 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534792,534805] [2021-11-19 14:00:58,055 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534950,534963] [2021-11-19 14:00:58,056 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535108,535121] [2021-11-19 14:00:58,056 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535268,535281] [2021-11-19 14:00:58,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535427,535440] [2021-11-19 14:00:58,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535566,535579] [2021-11-19 14:00:58,058 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535708,535721] [2021-11-19 14:00:58,059 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535857,535870] [2021-11-19 14:00:58,059 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535996,536009] [2021-11-19 14:00:58,060 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536151,536164] [2021-11-19 14:00:58,060 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536311,536324] [2021-11-19 14:00:58,061 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536462,536475] [2021-11-19 14:00:58,061 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536613,536626] [2021-11-19 14:00:58,062 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536765,536778] [2021-11-19 14:00:58,062 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536914,536927] [2021-11-19 14:00:58,063 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537062,537075] [2021-11-19 14:00:58,063 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537219,537232] [2021-11-19 14:00:58,064 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537368,537381] [2021-11-19 14:00:58,064 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537524,537537] [2021-11-19 14:00:58,065 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537677,537690] [2021-11-19 14:00:58,065 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537823,537836] [2021-11-19 14:00:58,066 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537966,537979] [2021-11-19 14:00:58,067 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538118,538131] [2021-11-19 14:00:58,067 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538264,538277] [2021-11-19 14:00:58,068 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538409,538422] [2021-11-19 14:00:58,068 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538563,538576] [2021-11-19 14:00:58,069 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538714,538727] [2021-11-19 14:00:58,069 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538869,538882] [2021-11-19 14:00:58,086 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539021,539034] [2021-11-19 14:00:58,087 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539176,539189] [2021-11-19 14:00:58,087 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539340,539353] [2021-11-19 14:00:58,088 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539496,539509] [2021-11-19 14:00:58,088 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539660,539673] [2021-11-19 14:00:58,089 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539802,539815] [2021-11-19 14:00:58,089 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539960,539973] [2021-11-19 14:00:58,090 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540127,540140] [2021-11-19 14:00:58,090 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540286,540299] [2021-11-19 14:00:58,091 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540445,540458] [2021-11-19 14:00:58,091 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540594,540607] [2021-11-19 14:00:58,092 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540741,540754] [2021-11-19 14:00:58,092 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540880,540893] [2021-11-19 14:00:58,092 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541043,541056] [2021-11-19 14:00:58,093 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541209,541222] [2021-11-19 14:00:58,093 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541373,541386] [2021-11-19 14:00:58,094 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541538,541551] [2021-11-19 14:00:58,094 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541703,541716] [2021-11-19 14:00:58,095 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541869,541882] [2021-11-19 14:00:58,095 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542034,542047] [2021-11-19 14:00:58,096 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542201,542214] [2021-11-19 14:00:58,096 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542361,542374] [2021-11-19 14:00:58,097 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542523,542536] [2021-11-19 14:00:58,097 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542682,542695] [2021-11-19 14:00:58,098 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542828,542841] [2021-11-19 14:00:58,098 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542971,542984] [2021-11-19 14:00:58,099 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543115,543128] [2021-11-19 14:00:58,099 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543258,543271] [2021-11-19 14:00:58,100 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543402,543415] [2021-11-19 14:00:58,100 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543543,543556] [2021-11-19 14:00:58,101 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543681,543694] [2021-11-19 14:00:58,101 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543839,543852] [2021-11-19 14:00:58,102 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543998,544011] [2021-11-19 14:00:58,102 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544154,544167] [2021-11-19 14:00:58,103 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544303,544316] [2021-11-19 14:00:58,103 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544455,544468] [2021-11-19 14:00:58,104 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544606,544619] [2021-11-19 14:00:58,104 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544755,544768] [2021-11-19 14:00:58,105 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544907,544920] [2021-11-19 14:00:58,105 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545055,545068] [2021-11-19 14:00:58,106 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545208,545221] [2021-11-19 14:00:58,106 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545359,545372] [2021-11-19 14:00:58,106 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545509,545522] [2021-11-19 14:00:58,107 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545656,545669] [2021-11-19 14:00:58,107 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545807,545820] [2021-11-19 14:00:58,108 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545958,545971] [2021-11-19 14:00:58,108 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546106,546119] [2021-11-19 14:00:58,109 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546272,546285] [2021-11-19 14:00:58,109 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546441,546454] [2021-11-19 14:00:58,110 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546608,546621] [2021-11-19 14:00:58,110 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546776,546789] [2021-11-19 14:00:58,111 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546926,546939] [2021-11-19 14:00:58,111 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547073,547086] [2021-11-19 14:00:58,112 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547234,547247] [2021-11-19 14:00:58,112 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547404,547417] [2021-11-19 14:00:58,113 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547566,547579] [2021-11-19 14:00:58,143 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:00:58,190 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:00:58,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:00:58,768 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534178,534191] [2021-11-19 14:00:58,769 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534323,534336] [2021-11-19 14:00:58,770 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534469,534482] [2021-11-19 14:00:58,772 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534634,534647] [2021-11-19 14:00:58,772 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534792,534805] [2021-11-19 14:00:58,774 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534950,534963] [2021-11-19 14:00:58,775 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535108,535121] [2021-11-19 14:00:58,776 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535268,535281] [2021-11-19 14:00:58,777 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535427,535440] [2021-11-19 14:00:58,777 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535566,535579] [2021-11-19 14:00:58,778 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535708,535721] [2021-11-19 14:00:58,780 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535857,535870] [2021-11-19 14:00:58,783 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535996,536009] [2021-11-19 14:00:58,783 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536151,536164] [2021-11-19 14:00:58,785 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536311,536324] [2021-11-19 14:00:58,785 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536462,536475] [2021-11-19 14:00:58,786 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536613,536626] [2021-11-19 14:00:58,786 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536765,536778] [2021-11-19 14:00:58,787 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536914,536927] [2021-11-19 14:00:58,788 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537062,537075] [2021-11-19 14:00:58,789 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537219,537232] [2021-11-19 14:00:58,789 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537368,537381] [2021-11-19 14:00:58,790 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537524,537537] [2021-11-19 14:00:58,790 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537677,537690] [2021-11-19 14:00:58,791 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537823,537836] [2021-11-19 14:00:58,792 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537966,537979] [2021-11-19 14:00:58,792 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538118,538131] [2021-11-19 14:00:58,793 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538264,538277] [2021-11-19 14:00:58,793 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538409,538422] [2021-11-19 14:00:58,794 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538563,538576] [2021-11-19 14:00:58,794 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538714,538727] [2021-11-19 14:00:58,795 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538869,538882] [2021-11-19 14:00:58,796 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539021,539034] [2021-11-19 14:00:58,796 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539176,539189] [2021-11-19 14:00:58,797 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539340,539353] [2021-11-19 14:00:58,797 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539496,539509] [2021-11-19 14:00:58,798 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539660,539673] [2021-11-19 14:00:58,799 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539802,539815] [2021-11-19 14:00:58,800 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539960,539973] [2021-11-19 14:00:58,801 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540127,540140] [2021-11-19 14:00:58,802 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540286,540299] [2021-11-19 14:00:58,803 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540445,540458] [2021-11-19 14:00:58,803 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540594,540607] [2021-11-19 14:00:58,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540741,540754] [2021-11-19 14:00:58,810 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540880,540893] [2021-11-19 14:00:58,811 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541043,541056] [2021-11-19 14:00:58,811 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541209,541222] [2021-11-19 14:00:58,812 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541373,541386] [2021-11-19 14:00:58,812 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541538,541551] [2021-11-19 14:00:58,812 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541703,541716] [2021-11-19 14:00:58,813 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_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541869,541882] [2021-11-19 14:00:58,814 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542034,542047] [2021-11-19 14:00:58,815 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542201,542214] [2021-11-19 14:00:58,815 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542361,542374] [2021-11-19 14:00:58,816 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542523,542536] [2021-11-19 14:00:58,816 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542682,542695] [2021-11-19 14:00:58,816 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542828,542841] [2021-11-19 14:00:58,817 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542971,542984] [2021-11-19 14:00:58,818 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543115,543128] [2021-11-19 14:00:58,819 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543258,543271] [2021-11-19 14:00:58,822 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543402,543415] [2021-11-19 14:00:58,823 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543543,543556] [2021-11-19 14:00:58,824 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543681,543694] [2021-11-19 14:00:58,824 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543839,543852] [2021-11-19 14:00:58,825 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_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543998,544011] [2021-11-19 14:00:58,826 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_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544154,544167] [2021-11-19 14:00:58,827 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_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544303,544316] [2021-11-19 14:00:58,827 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_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544455,544468] [2021-11-19 14:00:58,828 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544606,544619] [2021-11-19 14:00:58,834 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544755,544768] [2021-11-19 14:00:58,835 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544907,544920] [2021-11-19 14:00:58,836 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545055,545068] [2021-11-19 14:00:58,837 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545208,545221] [2021-11-19 14:00:58,837 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545359,545372] [2021-11-19 14:00:58,837 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545509,545522] [2021-11-19 14:00:58,838 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545656,545669] [2021-11-19 14:00:58,838 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545807,545820] [2021-11-19 14:00:58,839 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545958,545971] [2021-11-19 14:00:58,840 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_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546106,546119] [2021-11-19 14:00:58,841 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_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546272,546285] [2021-11-19 14:00:58,841 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_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546441,546454] [2021-11-19 14:00:58,843 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546608,546621] [2021-11-19 14:00:58,843 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546776,546789] [2021-11-19 14:00:58,843 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546926,546939] [2021-11-19 14:00:58,844 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_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547073,547086] [2021-11-19 14:00:58,844 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_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547234,547247] [2021-11-19 14:00:58,845 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_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547404,547417] [2021-11-19 14:00:58,845 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_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547566,547579] [2021-11-19 14:00:58,853 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:00:58,899 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:00:59,472 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534178,534191] [2021-11-19 14:00:59,473 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534323,534336] [2021-11-19 14:00:59,473 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534469,534482] [2021-11-19 14:00:59,474 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534634,534647] [2021-11-19 14:00:59,474 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534792,534805] [2021-11-19 14:00:59,475 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534950,534963] [2021-11-19 14:00:59,475 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535108,535121] [2021-11-19 14:00:59,475 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535268,535281] [2021-11-19 14:00:59,476 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535427,535440] [2021-11-19 14:00:59,476 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535566,535579] [2021-11-19 14:00:59,476 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535708,535721] [2021-11-19 14:00:59,476 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535857,535870] [2021-11-19 14:00:59,477 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535996,536009] [2021-11-19 14:00:59,477 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536151,536164] [2021-11-19 14:00:59,477 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536311,536324] [2021-11-19 14:00:59,478 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536462,536475] [2021-11-19 14:00:59,479 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536613,536626] [2021-11-19 14:00:59,479 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536765,536778] [2021-11-19 14:00:59,479 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536914,536927] [2021-11-19 14:00:59,480 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537062,537075] [2021-11-19 14:00:59,480 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537219,537232] [2021-11-19 14:00:59,480 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537368,537381] [2021-11-19 14:00:59,481 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537524,537537] [2021-11-19 14:00:59,481 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537677,537690] [2021-11-19 14:00:59,495 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537823,537836] [2021-11-19 14:00:59,495 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537966,537979] [2021-11-19 14:00:59,498 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538118,538131] [2021-11-19 14:00:59,498 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538264,538277] [2021-11-19 14:00:59,498 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538409,538422] [2021-11-19 14:00:59,499 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538563,538576] [2021-11-19 14:00:59,499 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538714,538727] [2021-11-19 14:00:59,499 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538869,538882] [2021-11-19 14:00:59,500 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539021,539034] [2021-11-19 14:00:59,500 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539176,539189] [2021-11-19 14:00:59,500 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539340,539353] [2021-11-19 14:00:59,500 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539496,539509] [2021-11-19 14:00:59,501 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539660,539673] [2021-11-19 14:00:59,501 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539802,539815] [2021-11-19 14:00:59,502 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539960,539973] [2021-11-19 14:00:59,502 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540127,540140] [2021-11-19 14:00:59,504 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540286,540299] [2021-11-19 14:00:59,504 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540445,540458] [2021-11-19 14:00:59,504 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540594,540607] [2021-11-19 14:00:59,506 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540741,540754] [2021-11-19 14:00:59,506 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540880,540893] [2021-11-19 14:00:59,507 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541043,541056] [2021-11-19 14:00:59,507 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541209,541222] [2021-11-19 14:00:59,507 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541373,541386] [2021-11-19 14:00:59,508 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541538,541551] [2021-11-19 14:00:59,508 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541703,541716] [2021-11-19 14:00:59,509 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541869,541882] [2021-11-19 14:00:59,510 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542034,542047] [2021-11-19 14:00:59,510 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542201,542214] [2021-11-19 14:00:59,511 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542361,542374] [2021-11-19 14:00:59,511 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542523,542536] [2021-11-19 14:00:59,511 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542682,542695] [2021-11-19 14:00:59,512 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542828,542841] [2021-11-19 14:00:59,512 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542971,542984] [2021-11-19 14:00:59,512 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543115,543128] [2021-11-19 14:00:59,513 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543258,543271] [2021-11-19 14:00:59,513 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543402,543415] [2021-11-19 14:00:59,513 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543543,543556] [2021-11-19 14:00:59,513 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543681,543694] [2021-11-19 14:00:59,514 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543839,543852] [2021-11-19 14:00:59,514 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543998,544011] [2021-11-19 14:00:59,514 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544154,544167] [2021-11-19 14:00:59,515 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544303,544316] [2021-11-19 14:00:59,515 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544455,544468] [2021-11-19 14:00:59,515 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544606,544619] [2021-11-19 14:00:59,516 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544755,544768] [2021-11-19 14:00:59,518 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544907,544920] [2021-11-19 14:00:59,519 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545055,545068] [2021-11-19 14:00:59,520 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545208,545221] [2021-11-19 14:00:59,520 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545359,545372] [2021-11-19 14:00:59,520 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545509,545522] [2021-11-19 14:00:59,521 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545656,545669] [2021-11-19 14:00:59,521 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545807,545820] [2021-11-19 14:00:59,521 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545958,545971] [2021-11-19 14:00:59,522 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546106,546119] [2021-11-19 14:00:59,527 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546272,546285] [2021-11-19 14:00:59,531 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546441,546454] [2021-11-19 14:00:59,532 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546608,546621] [2021-11-19 14:00:59,532 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546776,546789] [2021-11-19 14:00:59,532 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546926,546939] [2021-11-19 14:00:59,533 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547073,547086] [2021-11-19 14:00:59,533 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547234,547247] [2021-11-19 14:00:59,533 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547404,547417] [2021-11-19 14:00:59,534 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547566,547579] [2021-11-19 14:00:59,540 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:01:00,288 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:01:00,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:00 WrapperNode [2021-11-19 14:01:00,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:01:00,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:01:00,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:01:00,291 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:01:00,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:00" (1/1) ... [2021-11-19 14:01:00,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:00" (1/1) ... [2021-11-19 14:01:00,736 INFO L137 Inliner]: procedures = 832, calls = 3646, calls flagged for inlining = 391, calls inlined = 289, statements flattened = 7831 [2021-11-19 14:01:00,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:01:00,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:01:00,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:01:00,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:01:00,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:00" (1/1) ... [2021-11-19 14:01:00,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:00" (1/1) ... [2021-11-19 14:01:00,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:00" (1/1) ... [2021-11-19 14:01:00,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:00" (1/1) ... [2021-11-19 14:01:01,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:00" (1/1) ... [2021-11-19 14:01:01,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:00" (1/1) ... [2021-11-19 14:01:01,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:00" (1/1) ... [2021-11-19 14:01:01,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:01:01,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:01:01,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:01:01,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:01:01,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:00" (1/1) ... [2021-11-19 14:01:01,285 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:01:01,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:01:01,308 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:01:01,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:01:01,356 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_force_ps [2021-11-19 14:01:01,356 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_force_ps [2021-11-19 14:01:01,357 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 14:01:01,357 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 14:01:01,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_131 [2021-11-19 14:01:01,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_131 [2021-11-19 14:01:01,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-19 14:01:01,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-19 14:01:01,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:01:01,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:01:01,357 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 14:01:01,357 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 14:01:01,358 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-19 14:01:01,358 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-19 14:01:01,358 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_disable [2021-11-19 14:01:01,358 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_disable [2021-11-19 14:01:01,358 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_io_resume [2021-11-19 14:01:01,358 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_io_resume [2021-11-19 14:01:01,358 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_restart_autoneg [2021-11-19 14:01:01,358 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_restart_autoneg [2021-11-19 14:01:01,358 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_close [2021-11-19 14:01:01,358 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_close [2021-11-19 14:01:01,359 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-19 14:01:01,359 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-19 14:01:01,359 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tpd [2021-11-19 14:01:01,359 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tpd [2021-11-19 14:01:01,359 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 14:01:01,359 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 14:01:01,359 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-19 14:01:01,359 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-19 14:01:01,359 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-19 14:01:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-19 14:01:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-11-19 14:01:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-11-19 14:01:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_shutdown [2021-11-19 14:01:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_shutdown [2021-11-19 14:01:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-19 14:01:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-19 14:01:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-19 14:01:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-19 14:01:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-19 14:01:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-19 14:01:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 14:01:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 14:01:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:01:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:01:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-19 14:01:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-19 14:01:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-19 14:01:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-19 14:01:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-19 14:01:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-19 14:01:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2021-11-19 14:01:01,362 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2021-11-19 14:01:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-19 14:01:01,362 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-19 14:01:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2021-11-19 14:01:01,362 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2021-11-19 14:01:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 14:01:01,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 14:01:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_reset [2021-11-19 14:01:01,362 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_reset [2021-11-19 14:01:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-19 14:01:01,363 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-19 14:01:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 14:01:01,363 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 14:01:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_down [2021-11-19 14:01:01,363 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_down [2021-11-19 14:01:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-19 14:01:01,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-19 14:01:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:01:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:01:01,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:01:01,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:01:01,364 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 14:01:01,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 14:01:01,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:01:01,364 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 14:01:01,364 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-19 14:01:01,364 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-19 14:01:01,364 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_multi [2021-11-19 14:01:01,364 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_multi [2021-11-19 14:01:01,364 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-19 14:01:01,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-19 14:01:01,365 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 14:01:01,365 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 14:01:01,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 14:01:01,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 14:01:01,365 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_ring_resources [2021-11-19 14:01:01,365 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_ring_resources [2021-11-19 14:01:01,365 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-19 14:01:01,365 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-19 14:01:01,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:01:01,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:01:01,366 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-19 14:01:01,366 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-19 14:01:01,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:01:01,366 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-19 14:01:01,366 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-19 14:01:01,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 14:01:01,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 14:01:01,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_138 [2021-11-19 14:01:01,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_138 [2021-11-19 14:01:01,367 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-19 14:01:01,367 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-19 14:01:01,367 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-19 14:01:01,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-19 14:01:01,367 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-19 14:01:01,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-19 14:01:01,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 14:01:01,367 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 14:01:01,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_127 [2021-11-19 14:01:01,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_127 [2021-11-19 14:01:01,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-19 14:01:01,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-19 14:01:01,368 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-19 14:01:01,368 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-19 14:01:01,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-19 14:01:01,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-19 14:01:01,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:01:01,368 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 14:01:01,368 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 14:01:01,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-19 14:01:01,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-19 14:01:01,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:01:01,369 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_commit [2021-11-19 14:01:01,369 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_commit [2021-11-19 14:01:01,369 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-19 14:01:01,369 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-19 14:01:01,369 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 14:01:01,369 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 14:01:01,369 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-19 14:01:01,369 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-19 14:01:01,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 14:01:01,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 14:01:01,370 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_init [2021-11-19 14:01:01,370 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_init [2021-11-19 14:01:01,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-19 14:01:01,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-19 14:01:01,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-19 14:01:01,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-19 14:01:01,370 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-19 14:01:01,370 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-19 14:01:01,370 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 14:01:01,370 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 14:01:01,370 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_netpoll [2021-11-19 14:01:01,371 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_netpoll [2021-11-19 14:01:01,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 14:01:01,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 14:01:01,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:01:01,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 14:01:01,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:01:01,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:01:01,371 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_eeprom [2021-11-19 14:01:01,371 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_eeprom [2021-11-19 14:01:01,371 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_suspend [2021-11-19 14:01:01,371 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_suspend [2021-11-19 14:01:01,372 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_nway_reset [2021-11-19 14:01:01,372 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_nway_reset [2021-11-19 14:01:01,372 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-19 14:01:01,372 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-19 14:01:01,372 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2021-11-19 14:01:01,372 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2021-11-19 14:01:01,372 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_eeprom_len [2021-11-19 14:01:01,372 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_eeprom_len [2021-11-19 14:01:01,372 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-19 14:01:01,372 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-19 14:01:01,373 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reset_hw [2021-11-19 14:01:01,373 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reset_hw [2021-11-19 14:01:01,373 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-19 14:01:01,373 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-19 14:01:01,373 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_regs_len [2021-11-19 14:01:01,373 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_regs_len [2021-11-19 14:01:01,373 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-19 14:01:01,373 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-19 14:01:01,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-19 14:01:01,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-19 14:01:01,373 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 14:01:01,374 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 14:01:01,374 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_phy_reg [2021-11-19 14:01:01,374 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_phy_reg [2021-11-19 14:01:01,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 14:01:01,374 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 14:01:01,374 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-19 14:01:01,374 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-19 14:01:01,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_130 [2021-11-19 14:01:01,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_130 [2021-11-19 14:01:01,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:01:01,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:01:01,375 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_del_timer [2021-11-19 14:01:01,375 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_del_timer [2021-11-19 14:01:01,375 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-19 14:01:01,375 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-19 14:01:01,375 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-19 14:01:01,375 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-19 14:01:01,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-19 14:01:01,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-19 14:01:01,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-19 14:01:01,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-19 14:01:01,376 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-19 14:01:01,376 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-19 14:01:01,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:01:01,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:01:01,376 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-19 14:01:01,376 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-19 14:01:01,376 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 14:01:01,376 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 14:01:01,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:01:01,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:01:01,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-19 14:01:01,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-19 14:01:01,377 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_irq [2021-11-19 14:01:01,377 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_irq [2021-11-19 14:01:01,377 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-19 14:01:01,377 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-19 14:01:01,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:01:01,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 14:01:01,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:01:01,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:01:01,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:01:01,378 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-19 14:01:01,378 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-19 14:01:01,378 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_check_eeprom_exist [2021-11-19 14:01:01,378 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_check_eeprom_exist [2021-11-19 14:01:01,378 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 14:01:01,378 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 14:01:01,378 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_hw_set_mac_addr [2021-11-19 14:01:01,378 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_hw_set_mac_addr [2021-11-19 14:01:01,378 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-19 14:01:01,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-19 14:01:01,379 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tx_buffer [2021-11-19 14:01:01,379 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tx_buffer [2021-11-19 14:01:01,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-19 14:01:01,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-19 14:01:01,379 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 14:01:01,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 14:01:01,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-19 14:01:01,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-19 14:01:01,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 14:01:01,379 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 14:01:01,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-19 14:01:01,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-19 14:01:01,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 14:01:01,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 14:01:01,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-19 14:01:01,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-19 14:01:01,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-19 14:01:01,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-19 14:01:01,380 INFO L130 BoogieDeclarations]: Found specification of procedure __atl1e_vlan_mode [2021-11-19 14:01:01,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __atl1e_vlan_mode [2021-11-19 14:01:01,380 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-19 14:01:01,381 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-19 14:01:01,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 14:01:01,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 14:01:01,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 14:01:01,381 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-11-19 14:01:01,381 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-11-19 14:01:01,381 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_remove [2021-11-19 14:01:01,381 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_remove [2021-11-19 14:01:01,381 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-19 14:01:01,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-19 14:01:01,382 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-19 14:01:01,382 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-19 14:01:01,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_mdio_lock_of_atl1e_adapter [2021-11-19 14:01:01,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_mdio_lock_of_atl1e_adapter [2021-11-19 14:01:01,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-19 14:01:01,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-19 14:01:01,382 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-19 14:01:01,382 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-19 14:01:01,382 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-19 14:01:01,382 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-19 14:01:01,383 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_validate_option [2021-11-19 14:01:01,383 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_validate_option [2021-11-19 14:01:01,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 14:01:01,383 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-11-19 14:01:01,383 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-11-19 14:01:01,383 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-11-19 14:01:01,383 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-11-19 14:01:01,383 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-19 14:01:01,383 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-19 14:01:01,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:01:01,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:01:01,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:01:01,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 14:01:01,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:01:01,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:01:01,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:01:01,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:01:01,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:01:01,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2021-11-19 14:01:01,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2021-11-19 14:01:01,384 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-19 14:01:01,385 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-19 14:01:01,385 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_tx_ring [2021-11-19 14:01:01,385 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_tx_ring [2021-11-19 14:01:01,385 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-19 14:01:01,385 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-19 14:01:01,385 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_resume [2021-11-19 14:01:01,385 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_resume [2021-11-19 14:01:01,385 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 14:01:01,385 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 14:01:01,385 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-19 14:01:01,386 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-19 14:01:01,386 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-19 14:01:01,386 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-19 14:01:01,386 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_tx_timeout [2021-11-19 14:01:01,386 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_tx_timeout [2021-11-19 14:01:01,386 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_vlan_mode [2021-11-19 14:01:01,386 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_vlan_mode [2021-11-19 14:01:01,386 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_write_phy_reg [2021-11-19 14:01:01,386 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_write_phy_reg [2021-11-19 14:01:01,386 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-19 14:01:01,387 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-19 14:01:01,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:01:01,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:01:01,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:01:01,387 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_up [2021-11-19 14:01:01,387 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_up [2021-11-19 14:01:01,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:01:01,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:01:01,387 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-19 14:01:01,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-19 14:01:01,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-19 14:01:01,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-19 14:01:01,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_mdio_lock_of_atl1e_adapter [2021-11-19 14:01:01,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_mdio_lock_of_atl1e_adapter [2021-11-19 14:01:01,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:01:01,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:01:01,388 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reinit_locked [2021-11-19 14:01:01,388 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reinit_locked [2021-11-19 14:01:01,388 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_intr [2021-11-19 14:01:01,388 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_intr [2021-11-19 14:01:01,388 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 14:01:01,389 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 14:01:01,389 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-19 14:01:01,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-19 14:01:01,389 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_open [2021-11-19 14:01:01,389 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_open [2021-11-19 14:01:01,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-19 14:01:01,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-19 14:01:01,389 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-19 14:01:01,389 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-19 14:01:01,389 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_enable [2021-11-19 14:01:01,390 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_enable [2021-11-19 14:01:01,390 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 14:01:01,390 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 14:01:01,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-19 14:01:01,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-19 14:01:01,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-19 14:01:01,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-19 14:01:01,390 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-19 14:01:01,390 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-19 14:01:01,390 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-19 14:01:01,391 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-19 14:01:01,391 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_request_irq [2021-11-19 14:01:01,391 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_request_irq [2021-11-19 14:01:01,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:01:01,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:01:01,391 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-19 14:01:01,391 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-19 14:01:01,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-19 14:01:01,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-19 14:01:01,391 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-19 14:01:01,392 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-19 14:01:01,392 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-11-19 14:01:01,392 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-11-19 14:01:01,392 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-19 14:01:01,392 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-19 14:01:01,392 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_rx_ring [2021-11-19 14:01:01,392 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_rx_ring [2021-11-19 14:01:02,664 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:01:02,669 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:01:02,772 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:02:11,664 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:02:11,690 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:02:11,690 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:02:11,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:02:11 BoogieIcfgContainer [2021-11-19 14:02:11,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:02:11,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:02:11,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:02:11,703 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:02:11,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:00:50" (1/3) ... [2021-11-19 14:02:11,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6910eb9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:02:11, skipping insertion in model container [2021-11-19 14:02:11,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:00" (2/3) ... [2021-11-19 14:02:11,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6910eb9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:02:11, skipping insertion in model container [2021-11-19 14:02:11,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:02:11" (3/3) ... [2021-11-19 14:02:11,706 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i [2021-11-19 14:02:11,712 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:02:11,712 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2021-11-19 14:02:11,774 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:02:11,780 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 [2021-11-19 14:02:11,780 INFO L340 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2021-11-19 14:02:11,863 INFO L276 IsEmpty]: Start isEmpty. Operand has 2811 states, 1867 states have (on average 1.2512051419389394) internal successors, (2336), 1929 states have internal predecessors, (2336), 747 states have call successors, (747), 169 states have call predecessors, (747), 168 states have return successors, (743), 740 states have call predecessors, (743), 743 states have call successors, (743) [2021-11-19 14:02:11,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-19 14:02:11,871 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:11,872 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:02:11,872 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:02:11,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:11,878 INFO L85 PathProgramCache]: Analyzing trace with hash 486710648, now seen corresponding path program 1 times [2021-11-19 14:02:11,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:11,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1326938128] [2021-11-19 14:02:11,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:11,896 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:11,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:11,899 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:11,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:02:14,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:14,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 1723 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:02:14,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:15,400 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:02:15,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:15,958 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:02:15,959 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:15,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1326938128] [2021-11-19 14:02:15,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1326938128] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:15,960 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:02:15,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:02:15,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686461489] [2021-11-19 14:02:15,962 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:15,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:02:15,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:15,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:02:15,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:02:16,000 INFO L87 Difference]: Start difference. First operand has 2811 states, 1867 states have (on average 1.2512051419389394) internal successors, (2336), 1929 states have internal predecessors, (2336), 747 states have call successors, (747), 169 states have call predecessors, (747), 168 states have return successors, (743), 740 states have call predecessors, (743), 743 states have call successors, (743) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-19 14:02:16,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:16,487 INFO L93 Difference]: Finished difference Result 5587 states and 7723 transitions. [2021-11-19 14:02:16,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:02:16,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 64 [2021-11-19 14:02:16,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:16,529 INFO L225 Difference]: With dead ends: 5587 [2021-11-19 14:02:16,529 INFO L226 Difference]: Without dead ends: 2790 [2021-11-19 14:02:16,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:02:16,555 INFO L933 BasicCegarLoop]: 3776 mSDtfsCounter, 3729 mSDsluCounter, 7548 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3731 SdHoareTripleChecker+Valid, 11324 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:16,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3731 Valid, 11324 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:02:16,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2790 states. [2021-11-19 14:02:16,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2790 to 2790. [2021-11-19 14:02:16,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2790 states, 1853 states have (on average 1.2288181327576901) internal successors, (2277), 1912 states have internal predecessors, (2277), 743 states have call successors, (743), 168 states have call predecessors, (743), 167 states have return successors, (741), 738 states have call predecessors, (741), 741 states have call successors, (741) [2021-11-19 14:02:16,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2790 states to 2790 states and 3761 transitions. [2021-11-19 14:02:16,882 INFO L78 Accepts]: Start accepts. Automaton has 2790 states and 3761 transitions. Word has length 64 [2021-11-19 14:02:16,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:16,884 INFO L470 AbstractCegarLoop]: Abstraction has 2790 states and 3761 transitions. [2021-11-19 14:02:16,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-19 14:02:16,884 INFO L276 IsEmpty]: Start isEmpty. Operand 2790 states and 3761 transitions. [2021-11-19 14:02:16,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-19 14:02:16,888 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:16,889 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:02:16,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:17,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:17,102 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:02:17,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:17,103 INFO L85 PathProgramCache]: Analyzing trace with hash 2053259981, now seen corresponding path program 1 times [2021-11-19 14:02:17,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:17,106 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [654231686] [2021-11-19 14:02:17,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:17,107 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:17,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:17,108 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:17,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:02:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:19,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 1732 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:02:19,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:20,635 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:02:20,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:21,183 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:02:21,184 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:21,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [654231686] [2021-11-19 14:02:21,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [654231686] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:21,184 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:02:21,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:02:21,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906000537] [2021-11-19 14:02:21,184 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:21,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:02:21,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:21,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:02:21,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:02:21,187 INFO L87 Difference]: Start difference. First operand 2790 states and 3761 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 14:02:21,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:21,460 INFO L93 Difference]: Finished difference Result 2790 states and 3761 transitions. [2021-11-19 14:02:21,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:02:21,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 70 [2021-11-19 14:02:21,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:21,484 INFO L225 Difference]: With dead ends: 2790 [2021-11-19 14:02:21,484 INFO L226 Difference]: Without dead ends: 2788 [2021-11-19 14:02:21,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:02:21,487 INFO L933 BasicCegarLoop]: 3757 mSDtfsCounter, 3707 mSDsluCounter, 3755 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3709 SdHoareTripleChecker+Valid, 7512 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:21,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3709 Valid, 7512 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:02:21,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2788 states. [2021-11-19 14:02:21,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2788 to 2788. [2021-11-19 14:02:21,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2788 states, 1852 states have (on average 1.2284017278617712) internal successors, (2275), 1910 states have internal predecessors, (2275), 743 states have call successors, (743), 168 states have call predecessors, (743), 167 states have return successors, (741), 738 states have call predecessors, (741), 741 states have call successors, (741) [2021-11-19 14:02:21,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2788 states to 2788 states and 3759 transitions. [2021-11-19 14:02:21,674 INFO L78 Accepts]: Start accepts. Automaton has 2788 states and 3759 transitions. Word has length 70 [2021-11-19 14:02:21,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:21,677 INFO L470 AbstractCegarLoop]: Abstraction has 2788 states and 3759 transitions. [2021-11-19 14:02:21,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 14:02:21,678 INFO L276 IsEmpty]: Start isEmpty. Operand 2788 states and 3759 transitions. [2021-11-19 14:02:21,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-19 14:02:21,685 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:21,686 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:02:21,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:21,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:21,900 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:02:21,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:21,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1912413848, now seen corresponding path program 1 times [2021-11-19 14:02:21,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:21,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [773277279] [2021-11-19 14:02:21,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:21,904 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:21,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:21,906 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:21,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:02:24,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:24,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 1741 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:02:24,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:25,378 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:02:25,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:25,913 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:02:25,913 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:25,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [773277279] [2021-11-19 14:02:25,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [773277279] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:25,913 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:02:25,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:02:25,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807844613] [2021-11-19 14:02:25,913 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:25,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:02:25,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:25,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:02:25,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:02:25,915 INFO L87 Difference]: Start difference. First operand 2788 states and 3759 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 14:02:26,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:26,166 INFO L93 Difference]: Finished difference Result 2788 states and 3759 transitions. [2021-11-19 14:02:26,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:02:26,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 76 [2021-11-19 14:02:26,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:26,195 INFO L225 Difference]: With dead ends: 2788 [2021-11-19 14:02:26,195 INFO L226 Difference]: Without dead ends: 2786 [2021-11-19 14:02:26,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:02:26,202 INFO L933 BasicCegarLoop]: 3755 mSDtfsCounter, 3699 mSDsluCounter, 3753 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3701 SdHoareTripleChecker+Valid, 7508 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:26,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3701 Valid, 7508 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:02:26,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states. [2021-11-19 14:02:26,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 2786. [2021-11-19 14:02:26,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2786 states, 1851 states have (on average 1.2279848730415992) internal successors, (2273), 1908 states have internal predecessors, (2273), 743 states have call successors, (743), 168 states have call predecessors, (743), 167 states have return successors, (741), 738 states have call predecessors, (741), 741 states have call successors, (741) [2021-11-19 14:02:26,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2786 states to 2786 states and 3757 transitions. [2021-11-19 14:02:26,389 INFO L78 Accepts]: Start accepts. Automaton has 2786 states and 3757 transitions. Word has length 76 [2021-11-19 14:02:26,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:26,390 INFO L470 AbstractCegarLoop]: Abstraction has 2786 states and 3757 transitions. [2021-11-19 14:02:26,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 14:02:26,390 INFO L276 IsEmpty]: Start isEmpty. Operand 2786 states and 3757 transitions. [2021-11-19 14:02:26,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-19 14:02:26,393 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:26,394 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:02:26,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:26,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:26,615 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:02:26,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:26,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1120970197, now seen corresponding path program 1 times [2021-11-19 14:02:26,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:26,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [669197914] [2021-11-19 14:02:26,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:26,619 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:26,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:26,624 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:26,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:02:28,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:28,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 1750 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:02:28,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:29,878 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:02:29,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:30,367 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:02:30,367 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:30,367 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [669197914] [2021-11-19 14:02:30,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [669197914] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:30,368 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:02:30,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:02:30,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940096871] [2021-11-19 14:02:30,368 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:30,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:02:30,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:30,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:02:30,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:02:30,370 INFO L87 Difference]: Start difference. First operand 2786 states and 3757 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-19 14:02:30,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:30,609 INFO L93 Difference]: Finished difference Result 2786 states and 3757 transitions. [2021-11-19 14:02:30,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:02:30,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 82 [2021-11-19 14:02:30,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:30,638 INFO L225 Difference]: With dead ends: 2786 [2021-11-19 14:02:30,638 INFO L226 Difference]: Without dead ends: 2784 [2021-11-19 14:02:30,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:02:30,641 INFO L933 BasicCegarLoop]: 3753 mSDtfsCounter, 3691 mSDsluCounter, 3751 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3693 SdHoareTripleChecker+Valid, 7504 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:30,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3693 Valid, 7504 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:02:30,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2021-11-19 14:02:30,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 2784. [2021-11-19 14:02:30,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2784 states, 1850 states have (on average 1.2275675675675675) internal successors, (2271), 1906 states have internal predecessors, (2271), 743 states have call successors, (743), 168 states have call predecessors, (743), 167 states have return successors, (741), 738 states have call predecessors, (741), 741 states have call successors, (741) [2021-11-19 14:02:30,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2784 states to 2784 states and 3755 transitions. [2021-11-19 14:02:30,826 INFO L78 Accepts]: Start accepts. Automaton has 2784 states and 3755 transitions. Word has length 82 [2021-11-19 14:02:30,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:30,827 INFO L470 AbstractCegarLoop]: Abstraction has 2784 states and 3755 transitions. [2021-11-19 14:02:30,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-19 14:02:30,828 INFO L276 IsEmpty]: Start isEmpty. Operand 2784 states and 3755 transitions. [2021-11-19 14:02:30,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-19 14:02:30,829 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:30,829 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:02:30,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:31,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:31,055 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:02:31,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:31,055 INFO L85 PathProgramCache]: Analyzing trace with hash -318040224, now seen corresponding path program 1 times [2021-11-19 14:02:31,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:31,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1170164418] [2021-11-19 14:02:31,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:31,060 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:31,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:31,062 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:31,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:02:33,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:33,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 1759 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:02:33,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:34,334 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:02:34,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:34,861 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:02:34,861 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:34,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1170164418] [2021-11-19 14:02:34,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1170164418] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:34,862 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:02:34,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:02:34,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963958274] [2021-11-19 14:02:34,863 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:34,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:02:34,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:34,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:02:34,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:02:34,865 INFO L87 Difference]: Start difference. First operand 2784 states and 3755 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-19 14:02:35,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:35,114 INFO L93 Difference]: Finished difference Result 2784 states and 3755 transitions. [2021-11-19 14:02:35,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:02:35,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 88 [2021-11-19 14:02:35,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:35,138 INFO L225 Difference]: With dead ends: 2784 [2021-11-19 14:02:35,138 INFO L226 Difference]: Without dead ends: 2782 [2021-11-19 14:02:35,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:02:35,141 INFO L933 BasicCegarLoop]: 3751 mSDtfsCounter, 3680 mSDsluCounter, 7498 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3682 SdHoareTripleChecker+Valid, 11249 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:35,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3682 Valid, 11249 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:02:35,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2782 states. [2021-11-19 14:02:35,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2782 to 2782. [2021-11-19 14:02:35,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2782 states, 1849 states have (on average 1.227149810708491) internal successors, (2269), 1904 states have internal predecessors, (2269), 743 states have call successors, (743), 168 states have call predecessors, (743), 167 states have return successors, (741), 738 states have call predecessors, (741), 741 states have call successors, (741) [2021-11-19 14:02:35,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3753 transitions. [2021-11-19 14:02:35,356 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3753 transitions. Word has length 88 [2021-11-19 14:02:35,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:35,357 INFO L470 AbstractCegarLoop]: Abstraction has 2782 states and 3753 transitions. [2021-11-19 14:02:35,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-19 14:02:35,359 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3753 transitions. [2021-11-19 14:02:35,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-19 14:02:35,367 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:35,381 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:02:35,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:35,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:35,595 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:02:35,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:35,596 INFO L85 PathProgramCache]: Analyzing trace with hash -2032595313, now seen corresponding path program 1 times [2021-11-19 14:02:35,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:35,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1161562936] [2021-11-19 14:02:35,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:35,598 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:35,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:35,600 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:35,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:02:38,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:38,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 1919 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 14:02:38,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:39,158 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 95 proven. 3 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-19 14:02:39,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:40,456 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-19 14:02:40,456 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:40,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1161562936] [2021-11-19 14:02:40,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1161562936] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:02:40,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1405811940] [2021-11-19 14:02:40,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:40,457 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:02:40,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:02:40,463 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:02:40,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-19 14:02:41,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:41,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 1919 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:02:41,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:42,430 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-19 14:02:42,430 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:42,902 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-19 14:02:42,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1405811940] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:42,902 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:02:42,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8, 8] total 11 [2021-11-19 14:02:42,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135663930] [2021-11-19 14:02:42,902 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:42,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:02:42,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:42,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:02:42,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:02:42,904 INFO L87 Difference]: Start difference. First operand 2782 states and 3753 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-19 14:02:43,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:43,519 INFO L93 Difference]: Finished difference Result 7512 states and 10139 transitions. [2021-11-19 14:02:43,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:02:43,520 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), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 114 [2021-11-19 14:02:43,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:43,567 INFO L225 Difference]: With dead ends: 7512 [2021-11-19 14:02:43,567 INFO L226 Difference]: Without dead ends: 4751 [2021-11-19 14:02:43,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:02:43,583 INFO L933 BasicCegarLoop]: 5266 mSDtfsCounter, 3735 mSDsluCounter, 5321 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3735 SdHoareTripleChecker+Valid, 10587 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:43,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3735 Valid, 10587 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:02:43,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4751 states. [2021-11-19 14:02:43,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4751 to 4737. [2021-11-19 14:02:43,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4737 states, 3174 states have (on average 1.2303087586641461) internal successors, (3905), 3250 states have internal predecessors, (3905), 1251 states have call successors, (1251), 290 states have call predecessors, (1251), 289 states have return successors, (1249), 1243 states have call predecessors, (1249), 1249 states have call successors, (1249) [2021-11-19 14:02:43,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4737 states to 4737 states and 6405 transitions. [2021-11-19 14:02:43,953 INFO L78 Accepts]: Start accepts. Automaton has 4737 states and 6405 transitions. Word has length 114 [2021-11-19 14:02:43,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:43,954 INFO L470 AbstractCegarLoop]: Abstraction has 4737 states and 6405 transitions. [2021-11-19 14:02:43,954 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), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-19 14:02:43,954 INFO L276 IsEmpty]: Start isEmpty. Operand 4737 states and 6405 transitions. [2021-11-19 14:02:43,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-19 14:02:43,956 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:43,957 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:02:43,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:44,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:44,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:44,373 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:02:44,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:44,374 INFO L85 PathProgramCache]: Analyzing trace with hash -933336745, now seen corresponding path program 1 times [2021-11-19 14:02:44,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:44,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1788054431] [2021-11-19 14:02:44,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:44,375 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:44,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:44,376 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:44,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:02:46,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:46,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 1768 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:02:46,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:47,618 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:02:47,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:48,159 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:02:48,159 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:48,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1788054431] [2021-11-19 14:02:48,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1788054431] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:48,160 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:02:48,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:02:48,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305226232] [2021-11-19 14:02:48,160 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:48,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:02:48,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:48,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:02:48,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:02:48,161 INFO L87 Difference]: Start difference. First operand 4737 states and 6405 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 14:02:48,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:48,561 INFO L93 Difference]: Finished difference Result 4737 states and 6405 transitions. [2021-11-19 14:02:48,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:02:48,561 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 94 [2021-11-19 14:02:48,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:48,596 INFO L225 Difference]: With dead ends: 4737 [2021-11-19 14:02:48,596 INFO L226 Difference]: Without dead ends: 4735 [2021-11-19 14:02:48,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:02:48,600 INFO L933 BasicCegarLoop]: 3749 mSDtfsCounter, 3675 mSDsluCounter, 3747 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3677 SdHoareTripleChecker+Valid, 7496 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:48,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3677 Valid, 7496 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:02:48,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4735 states. [2021-11-19 14:02:48,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4735 to 4735. [2021-11-19 14:02:48,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4735 states, 3173 states have (on average 1.2300661834226285) internal successors, (3903), 3248 states have internal predecessors, (3903), 1251 states have call successors, (1251), 290 states have call predecessors, (1251), 289 states have return successors, (1249), 1243 states have call predecessors, (1249), 1249 states have call successors, (1249) [2021-11-19 14:02:48,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4735 states to 4735 states and 6403 transitions. [2021-11-19 14:02:48,935 INFO L78 Accepts]: Start accepts. Automaton has 4735 states and 6403 transitions. Word has length 94 [2021-11-19 14:02:48,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:48,935 INFO L470 AbstractCegarLoop]: Abstraction has 4735 states and 6403 transitions. [2021-11-19 14:02:48,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 14:02:48,936 INFO L276 IsEmpty]: Start isEmpty. Operand 4735 states and 6403 transitions. [2021-11-19 14:02:48,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-19 14:02:48,938 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:48,938 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:02:48,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:49,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:49,152 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:02:49,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:49,153 INFO L85 PathProgramCache]: Analyzing trace with hash 713197777, now seen corresponding path program 1 times [2021-11-19 14:02:49,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:49,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [553602256] [2021-11-19 14:02:49,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:49,155 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:49,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:49,157 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:49,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 14:02:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:51,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 1877 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:02:51,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:53,546 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 79 proven. 3 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-19 14:02:53,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:55,203 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 9 proven. 27 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-11-19 14:02:55,203 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:55,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [553602256] [2021-11-19 14:02:55,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [553602256] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:02:55,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1686009730] [2021-11-19 14:02:55,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:55,204 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:02:55,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:02:55,205 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:02:55,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-19 14:02:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:58,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 1877 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-19 14:02:58,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:00,366 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2021-11-19 14:03:00,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:02,443 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2021-11-19 14:03:02,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1686009730] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:03:02,443 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:03:02,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [17, 17] total 28 [2021-11-19 14:03:02,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111539037] [2021-11-19 14:03:02,443 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:02,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 14:03:02,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:02,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 14:03:02,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=695, Unknown=0, NotChecked=0, Total=756 [2021-11-19 14:03:02,445 INFO L87 Difference]: Start difference. First operand 4735 states and 6403 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (24), 6 states have call predecessors, (24), 4 states have call successors, (24) [2021-11-19 14:03:03,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:03,345 INFO L93 Difference]: Finished difference Result 5013 states and 6709 transitions. [2021-11-19 14:03:03,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:03:03,346 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (24), 6 states have call predecessors, (24), 4 states have call successors, (24) Word has length 119 [2021-11-19 14:03:03,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:03,400 INFO L225 Difference]: With dead ends: 5013 [2021-11-19 14:03:03,400 INFO L226 Difference]: Without dead ends: 4762 [2021-11-19 14:03:03,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 446 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=67, Invalid=745, Unknown=0, NotChecked=0, Total=812 [2021-11-19 14:03:03,406 INFO L933 BasicCegarLoop]: 3793 mSDtfsCounter, 44 mSDsluCounter, 26487 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 30280 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:03:03,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 30280 Invalid, 46 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:03:03,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4762 states. [2021-11-19 14:03:03,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4762 to 4735. [2021-11-19 14:03:03,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4735 states, 3173 states have (on average 1.229751024267255) internal successors, (3902), 3247 states have internal predecessors, (3902), 1251 states have call successors, (1251), 290 states have call predecessors, (1251), 289 states have return successors, (1249), 1243 states have call predecessors, (1249), 1249 states have call successors, (1249) [2021-11-19 14:03:03,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4735 states to 4735 states and 6402 transitions. [2021-11-19 14:03:03,751 INFO L78 Accepts]: Start accepts. Automaton has 4735 states and 6402 transitions. Word has length 119 [2021-11-19 14:03:03,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:03,752 INFO L470 AbstractCegarLoop]: Abstraction has 4735 states and 6402 transitions. [2021-11-19 14:03:03,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (24), 6 states have call predecessors, (24), 4 states have call successors, (24) [2021-11-19 14:03:03,752 INFO L276 IsEmpty]: Start isEmpty. Operand 4735 states and 6402 transitions. [2021-11-19 14:03:03,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-19 14:03:03,756 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:03,756 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 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] [2021-11-19 14:03:03,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:03,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:04,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:03:04,171 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:03:04,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:04,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1132136734, now seen corresponding path program 1 times [2021-11-19 14:03:04,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:04,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130926671] [2021-11-19 14:03:04,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:04,174 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:04,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:04,179 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:04,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 14:03:06,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:06,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 1928 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 14:03:06,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:07,656 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 95 proven. 3 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-11-19 14:03:07,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:08,935 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-11-19 14:03:08,935 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:08,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130926671] [2021-11-19 14:03:08,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130926671] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:03:08,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [873564413] [2021-11-19 14:03:08,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:08,936 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:03:08,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:03:08,944 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:03:08,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-19 14:03:10,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:10,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 1928 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:03:10,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:10,970 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-19 14:03:10,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:11,707 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-11-19 14:03:11,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [873564413] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:03:11,708 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:03:11,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8, 8] total 11 [2021-11-19 14:03:11,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200914227] [2021-11-19 14:03:11,709 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:11,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:03:11,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:11,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:03:11,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:03:11,711 INFO L87 Difference]: Start difference. First operand 4735 states and 6402 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-19 14:03:12,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:12,260 INFO L93 Difference]: Finished difference Result 9445 states and 12769 transitions. [2021-11-19 14:03:12,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:03:12,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 120 [2021-11-19 14:03:12,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:12,290 INFO L225 Difference]: With dead ends: 9445 [2021-11-19 14:03:12,290 INFO L226 Difference]: Without dead ends: 4731 [2021-11-19 14:03:12,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 467 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:03:12,317 INFO L933 BasicCegarLoop]: 3744 mSDtfsCounter, 3728 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3728 SdHoareTripleChecker+Valid, 3744 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:03:12,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3728 Valid, 3744 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:03:12,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4731 states. [2021-11-19 14:03:12,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4731 to 4731. [2021-11-19 14:03:12,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4731 states, 3170 states have (on average 1.2293375394321766) internal successors, (3897), 3243 states have internal predecessors, (3897), 1251 states have call successors, (1251), 290 states have call predecessors, (1251), 289 states have return successors, (1249), 1243 states have call predecessors, (1249), 1249 states have call successors, (1249) [2021-11-19 14:03:12,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4731 states to 4731 states and 6397 transitions. [2021-11-19 14:03:12,660 INFO L78 Accepts]: Start accepts. Automaton has 4731 states and 6397 transitions. Word has length 120 [2021-11-19 14:03:12,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:12,661 INFO L470 AbstractCegarLoop]: Abstraction has 4731 states and 6397 transitions. [2021-11-19 14:03:12,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-19 14:03:12,661 INFO L276 IsEmpty]: Start isEmpty. Operand 4731 states and 6397 transitions. [2021-11-19 14:03:12,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-19 14:03:12,663 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:12,663 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:03:12,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:12,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:13,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:03:13,079 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:03:13,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:13,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1863929462, now seen corresponding path program 1 times [2021-11-19 14:03:13,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:13,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1218086601] [2021-11-19 14:03:13,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:13,082 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:13,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:13,085 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:13,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 14:03:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:15,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:03:15,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:16,687 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:03:16,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:17,238 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:03:17,238 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:17,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1218086601] [2021-11-19 14:03:17,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1218086601] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:03:17,238 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:03:17,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:03:17,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318967078] [2021-11-19 14:03:17,239 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:17,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:03:17,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:17,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:03:17,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:03:17,240 INFO L87 Difference]: Start difference. First operand 4731 states and 6397 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 14:03:17,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:17,570 INFO L93 Difference]: Finished difference Result 4731 states and 6397 transitions. [2021-11-19 14:03:17,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:03:17,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 100 [2021-11-19 14:03:17,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:17,594 INFO L225 Difference]: With dead ends: 4731 [2021-11-19 14:03:17,594 INFO L226 Difference]: Without dead ends: 4729 [2021-11-19 14:03:17,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:03:17,599 INFO L933 BasicCegarLoop]: 3741 mSDtfsCounter, 3658 mSDsluCounter, 7478 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3660 SdHoareTripleChecker+Valid, 11219 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:03:17,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3660 Valid, 11219 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:03:17,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4729 states. [2021-11-19 14:03:17,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4729 to 4729. [2021-11-19 14:03:17,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4729 states, 3169 states have (on average 1.2290943515304513) internal successors, (3895), 3241 states have internal predecessors, (3895), 1251 states have call successors, (1251), 290 states have call predecessors, (1251), 289 states have return successors, (1249), 1243 states have call predecessors, (1249), 1249 states have call successors, (1249) [2021-11-19 14:03:17,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4729 states to 4729 states and 6395 transitions. [2021-11-19 14:03:17,952 INFO L78 Accepts]: Start accepts. Automaton has 4729 states and 6395 transitions. Word has length 100 [2021-11-19 14:03:17,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:17,954 INFO L470 AbstractCegarLoop]: Abstraction has 4729 states and 6395 transitions. [2021-11-19 14:03:17,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 14:03:17,955 INFO L276 IsEmpty]: Start isEmpty. Operand 4729 states and 6395 transitions. [2021-11-19 14:03:17,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-19 14:03:17,957 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:17,957 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:03:18,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:18,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:03:18,179 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:03:18,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:18,179 INFO L85 PathProgramCache]: Analyzing trace with hash -523213804, now seen corresponding path program 1 times [2021-11-19 14:03:18,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:18,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1901352601] [2021-11-19 14:03:18,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:18,182 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:18,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:18,183 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:18,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 14:03:20,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:20,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 1888 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:03:20,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:23,072 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 79 proven. 3 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-19 14:03:23,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:24,818 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 9 proven. 27 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-11-19 14:03:24,819 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:24,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1901352601] [2021-11-19 14:03:24,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1901352601] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:03:24,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [821690670] [2021-11-19 14:03:24,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:24,819 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:03:24,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:03:24,827 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:03:24,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-11-19 14:03:31,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:31,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 1888 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:03:31,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:33,831 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2021-11-19 14:03:33,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:35,012 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2021-11-19 14:03:35,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [821690670] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:03:35,013 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:03:35,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [17, 17] total 25 [2021-11-19 14:03:35,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187311821] [2021-11-19 14:03:35,014 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:35,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:03:35,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:35,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:03:35,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=547, Unknown=0, NotChecked=0, Total=600 [2021-11-19 14:03:35,016 INFO L87 Difference]: Start difference. First operand 4729 states and 6395 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 14:03:35,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:35,683 INFO L93 Difference]: Finished difference Result 4831 states and 6511 transitions. [2021-11-19 14:03:35,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:03:35,683 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 123 [2021-11-19 14:03:35,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:35,711 INFO L225 Difference]: With dead ends: 4831 [2021-11-19 14:03:35,712 INFO L226 Difference]: Without dead ends: 4829 [2021-11-19 14:03:35,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 465 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=66, Invalid=636, Unknown=0, NotChecked=0, Total=702 [2021-11-19 14:03:35,717 INFO L933 BasicCegarLoop]: 3786 mSDtfsCounter, 3593 mSDsluCounter, 11490 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3594 SdHoareTripleChecker+Valid, 15276 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:03:35,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3594 Valid, 15276 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:03:35,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4829 states. [2021-11-19 14:03:36,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4829 to 4827. [2021-11-19 14:03:36,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4827 states, 3236 states have (on average 1.2289864029666255) internal successors, (3977), 3307 states have internal predecessors, (3977), 1266 states have call successors, (1266), 307 states have call predecessors, (1266), 306 states have return successors, (1264), 1258 states have call predecessors, (1264), 1264 states have call successors, (1264) [2021-11-19 14:03:36,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4827 states to 4827 states and 6507 transitions. [2021-11-19 14:03:36,215 INFO L78 Accepts]: Start accepts. Automaton has 4827 states and 6507 transitions. Word has length 123 [2021-11-19 14:03:36,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:36,216 INFO L470 AbstractCegarLoop]: Abstraction has 4827 states and 6507 transitions. [2021-11-19 14:03:36,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 14:03:36,216 INFO L276 IsEmpty]: Start isEmpty. Operand 4827 states and 6507 transitions. [2021-11-19 14:03:36,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-19 14:03:36,218 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:36,218 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:03:36,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:36,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-11-19 14:03:36,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:03:36,635 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:03:36,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:36,636 INFO L85 PathProgramCache]: Analyzing trace with hash 282908363, now seen corresponding path program 1 times [2021-11-19 14:03:36,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:36,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [121222224] [2021-11-19 14:03:36,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:36,637 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:36,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:36,638 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:36,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-19 14:03:38,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:38,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 1786 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:03:38,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:40,354 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:03:40,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:40,984 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:03:40,985 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:40,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [121222224] [2021-11-19 14:03:40,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [121222224] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:03:40,985 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:03:40,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:03:40,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389135389] [2021-11-19 14:03:40,985 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:40,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:03:40,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:40,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:03:40,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:03:40,986 INFO L87 Difference]: Start difference. First operand 4827 states and 6507 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 14:03:41,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:41,275 INFO L93 Difference]: Finished difference Result 4827 states and 6507 transitions. [2021-11-19 14:03:41,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:03:41,275 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 106 [2021-11-19 14:03:41,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:41,298 INFO L225 Difference]: With dead ends: 4827 [2021-11-19 14:03:41,298 INFO L226 Difference]: Without dead ends: 4825 [2021-11-19 14:03:41,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:03:41,303 INFO L933 BasicCegarLoop]: 3737 mSDtfsCounter, 3659 mSDsluCounter, 3731 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3661 SdHoareTripleChecker+Valid, 7468 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:03:41,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3661 Valid, 7468 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:03:41,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4825 states. [2021-11-19 14:03:41,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4825 to 4825. [2021-11-19 14:03:41,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4825 states, 3235 states have (on average 1.2287480680061824) internal successors, (3975), 3305 states have internal predecessors, (3975), 1266 states have call successors, (1266), 307 states have call predecessors, (1266), 306 states have return successors, (1264), 1258 states have call predecessors, (1264), 1264 states have call successors, (1264) [2021-11-19 14:03:41,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4825 states to 4825 states and 6505 transitions. [2021-11-19 14:03:41,769 INFO L78 Accepts]: Start accepts. Automaton has 4825 states and 6505 transitions. Word has length 106 [2021-11-19 14:03:41,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:41,769 INFO L470 AbstractCegarLoop]: Abstraction has 4825 states and 6505 transitions. [2021-11-19 14:03:41,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 14:03:41,770 INFO L276 IsEmpty]: Start isEmpty. Operand 4825 states and 6505 transitions. [2021-11-19 14:03:41,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-19 14:03:41,772 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:41,772 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:03:41,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:41,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:03:41,995 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:03:41,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:41,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1292182286, now seen corresponding path program 1 times [2021-11-19 14:03:41,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:41,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [811484797] [2021-11-19 14:03:41,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:41,998 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:41,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:42,000 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:42,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-19 14:03:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:44,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 1789 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:03:44,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:45,826 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:03:45,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:46,506 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:03:46,506 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:46,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [811484797] [2021-11-19 14:03:46,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [811484797] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:03:46,506 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:03:46,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:03:46,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958401851] [2021-11-19 14:03:46,506 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:46,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:03:46,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:46,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:03:46,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:03:46,507 INFO L87 Difference]: Start difference. First operand 4825 states and 6505 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 14:03:46,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:46,880 INFO L93 Difference]: Finished difference Result 4825 states and 6505 transitions. [2021-11-19 14:03:46,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:03:46,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 108 [2021-11-19 14:03:46,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:46,902 INFO L225 Difference]: With dead ends: 4825 [2021-11-19 14:03:46,902 INFO L226 Difference]: Without dead ends: 4823 [2021-11-19 14:03:46,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:03:46,907 INFO L933 BasicCegarLoop]: 3735 mSDtfsCounter, 3647 mSDsluCounter, 3733 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3649 SdHoareTripleChecker+Valid, 7468 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:03:46,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3649 Valid, 7468 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:03:46,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4823 states. [2021-11-19 14:03:47,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4823 to 4823. [2021-11-19 14:03:47,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4823 states, 3234 states have (on average 1.2285095856524428) internal successors, (3973), 3303 states have internal predecessors, (3973), 1266 states have call successors, (1266), 307 states have call predecessors, (1266), 306 states have return successors, (1264), 1258 states have call predecessors, (1264), 1264 states have call successors, (1264) [2021-11-19 14:03:47,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4823 states to 4823 states and 6503 transitions. [2021-11-19 14:03:47,331 INFO L78 Accepts]: Start accepts. Automaton has 4823 states and 6503 transitions. Word has length 108 [2021-11-19 14:03:47,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:47,332 INFO L470 AbstractCegarLoop]: Abstraction has 4823 states and 6503 transitions. [2021-11-19 14:03:47,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 14:03:47,333 INFO L276 IsEmpty]: Start isEmpty. Operand 4823 states and 6503 transitions. [2021-11-19 14:03:47,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-19 14:03:47,335 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:47,335 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:03:47,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:47,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:03:47,558 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:03:47,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:47,558 INFO L85 PathProgramCache]: Analyzing trace with hash -208892171, now seen corresponding path program 1 times [2021-11-19 14:03:47,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:47,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [581567084] [2021-11-19 14:03:47,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:47,561 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:47,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:47,562 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:47,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-19 14:03:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:49,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 1798 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:03:49,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:51,063 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:03:51,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:51,729 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:03:51,729 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:51,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [581567084] [2021-11-19 14:03:51,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [581567084] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:03:51,729 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:03:51,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:03:51,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417579016] [2021-11-19 14:03:51,730 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:51,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:03:51,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:51,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:03:51,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:03:51,731 INFO L87 Difference]: Start difference. First operand 4823 states and 6503 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 14:03:52,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:52,124 INFO L93 Difference]: Finished difference Result 4823 states and 6503 transitions. [2021-11-19 14:03:52,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:03:52,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 114 [2021-11-19 14:03:52,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:52,143 INFO L225 Difference]: With dead ends: 4823 [2021-11-19 14:03:52,143 INFO L226 Difference]: Without dead ends: 4821 [2021-11-19 14:03:52,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:03:52,147 INFO L933 BasicCegarLoop]: 3733 mSDtfsCounter, 3639 mSDsluCounter, 3731 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3641 SdHoareTripleChecker+Valid, 7464 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:03:52,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3641 Valid, 7464 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:03:52,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4821 states. [2021-11-19 14:03:52,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4821 to 4821. [2021-11-19 14:03:52,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4821 states, 3233 states have (on average 1.228270955768636) internal successors, (3971), 3301 states have internal predecessors, (3971), 1266 states have call successors, (1266), 307 states have call predecessors, (1266), 306 states have return successors, (1264), 1258 states have call predecessors, (1264), 1264 states have call successors, (1264) [2021-11-19 14:03:52,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4821 states to 4821 states and 6501 transitions. [2021-11-19 14:03:52,642 INFO L78 Accepts]: Start accepts. Automaton has 4821 states and 6501 transitions. Word has length 114 [2021-11-19 14:03:52,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:52,643 INFO L470 AbstractCegarLoop]: Abstraction has 4821 states and 6501 transitions. [2021-11-19 14:03:52,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 14:03:52,644 INFO L276 IsEmpty]: Start isEmpty. Operand 4821 states and 6501 transitions. [2021-11-19 14:03:52,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-19 14:03:52,652 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:52,653 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:03:52,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:52,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:03:52,875 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:03:52,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:52,875 INFO L85 PathProgramCache]: Analyzing trace with hash 767627696, now seen corresponding path program 1 times [2021-11-19 14:03:52,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:52,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [27546397] [2021-11-19 14:03:52,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:52,878 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:52,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:52,879 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:52,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-19 14:03:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:55,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 1807 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:03:55,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:56,741 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:03:56,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:57,323 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:03:57,323 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:57,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [27546397] [2021-11-19 14:03:57,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [27546397] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:03:57,323 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:03:57,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:03:57,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812852454] [2021-11-19 14:03:57,324 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:57,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:03:57,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:57,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:03:57,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:03:57,325 INFO L87 Difference]: Start difference. First operand 4821 states and 6501 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 14:03:57,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:57,654 INFO L93 Difference]: Finished difference Result 4821 states and 6501 transitions. [2021-11-19 14:03:57,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:03:57,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 120 [2021-11-19 14:03:57,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:57,677 INFO L225 Difference]: With dead ends: 4821 [2021-11-19 14:03:57,678 INFO L226 Difference]: Without dead ends: 4819 [2021-11-19 14:03:57,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:03:57,682 INFO L933 BasicCegarLoop]: 3731 mSDtfsCounter, 3628 mSDsluCounter, 7458 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3630 SdHoareTripleChecker+Valid, 11189 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:03:57,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3630 Valid, 11189 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:03:57,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4819 states. [2021-11-19 14:03:58,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4819 to 4819. [2021-11-19 14:03:58,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4819 states, 3232 states have (on average 1.2280321782178218) internal successors, (3969), 3299 states have internal predecessors, (3969), 1266 states have call successors, (1266), 307 states have call predecessors, (1266), 306 states have return successors, (1264), 1258 states have call predecessors, (1264), 1264 states have call successors, (1264) [2021-11-19 14:03:58,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4819 states to 4819 states and 6499 transitions. [2021-11-19 14:03:58,174 INFO L78 Accepts]: Start accepts. Automaton has 4819 states and 6499 transitions. Word has length 120 [2021-11-19 14:03:58,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:58,175 INFO L470 AbstractCegarLoop]: Abstraction has 4819 states and 6499 transitions. [2021-11-19 14:03:58,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 14:03:58,175 INFO L276 IsEmpty]: Start isEmpty. Operand 4819 states and 6499 transitions. [2021-11-19 14:03:58,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-19 14:03:58,177 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:58,178 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:03:58,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:58,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:03:58,395 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:03:58,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:58,396 INFO L85 PathProgramCache]: Analyzing trace with hash -673696038, now seen corresponding path program 1 times [2021-11-19 14:03:58,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:58,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [880231690] [2021-11-19 14:03:58,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:58,398 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:58,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:58,399 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:58,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-19 14:04:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:00,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 1816 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:04:00,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:02,047 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:04:02,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:02,715 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:04:02,715 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:04:02,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [880231690] [2021-11-19 14:04:02,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [880231690] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:04:02,716 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:04:02,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:04:02,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889287641] [2021-11-19 14:04:02,716 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:04:02,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:04:02,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:04:02,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:04:02,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:04:02,718 INFO L87 Difference]: Start difference. First operand 4819 states and 6499 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-19 14:04:03,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:04:03,164 INFO L93 Difference]: Finished difference Result 4819 states and 6499 transitions. [2021-11-19 14:04:03,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:04:03,165 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 126 [2021-11-19 14:04:03,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:04:03,186 INFO L225 Difference]: With dead ends: 4819 [2021-11-19 14:04:03,186 INFO L226 Difference]: Without dead ends: 4817 [2021-11-19 14:04:03,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:04:03,191 INFO L933 BasicCegarLoop]: 3729 mSDtfsCounter, 3623 mSDsluCounter, 3727 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3625 SdHoareTripleChecker+Valid, 7456 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:04:03,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3625 Valid, 7456 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:04:03,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4817 states. [2021-11-19 14:04:03,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4817 to 4817. [2021-11-19 14:04:03,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4817 states, 3231 states have (on average 1.2277932528628908) internal successors, (3967), 3297 states have internal predecessors, (3967), 1266 states have call successors, (1266), 307 states have call predecessors, (1266), 306 states have return successors, (1264), 1258 states have call predecessors, (1264), 1264 states have call successors, (1264) [2021-11-19 14:04:03,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4817 states to 4817 states and 6497 transitions. [2021-11-19 14:04:03,660 INFO L78 Accepts]: Start accepts. Automaton has 4817 states and 6497 transitions. Word has length 126 [2021-11-19 14:04:03,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:04:03,662 INFO L470 AbstractCegarLoop]: Abstraction has 4817 states and 6497 transitions. [2021-11-19 14:04:03,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-19 14:04:03,663 INFO L276 IsEmpty]: Start isEmpty. Operand 4817 states and 6497 transitions. [2021-11-19 14:04:03,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-19 14:04:03,667 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:03,667 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:04:03,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:03,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:04:03,891 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:04:03,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:03,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1727183827, now seen corresponding path program 1 times [2021-11-19 14:04:03,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:03,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [256431072] [2021-11-19 14:04:03,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:03,894 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:03,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:03,895 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:03,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-19 14:04:06,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:06,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 1825 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:04:06,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:07,728 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:04:07,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:08,377 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:04:08,377 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:04:08,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [256431072] [2021-11-19 14:04:08,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [256431072] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:04:08,378 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:04:08,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:04:08,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412944620] [2021-11-19 14:04:08,378 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:04:08,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:04:08,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:04:08,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:04:08,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:04:08,379 INFO L87 Difference]: Start difference. First operand 4817 states and 6497 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-19 14:04:08,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:04:08,697 INFO L93 Difference]: Finished difference Result 4817 states and 6497 transitions. [2021-11-19 14:04:08,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:04:08,698 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 132 [2021-11-19 14:04:08,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:04:08,717 INFO L225 Difference]: With dead ends: 4817 [2021-11-19 14:04:08,717 INFO L226 Difference]: Without dead ends: 4815 [2021-11-19 14:04:08,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:04:08,721 INFO L933 BasicCegarLoop]: 3727 mSDtfsCounter, 3612 mSDsluCounter, 7450 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3614 SdHoareTripleChecker+Valid, 11177 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:04:08,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3614 Valid, 11177 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:04:08,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4815 states. [2021-11-19 14:04:09,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4815 to 4815. [2021-11-19 14:04:09,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4815 states, 3230 states have (on average 1.2275541795665634) internal successors, (3965), 3295 states have internal predecessors, (3965), 1266 states have call successors, (1266), 307 states have call predecessors, (1266), 306 states have return successors, (1264), 1258 states have call predecessors, (1264), 1264 states have call successors, (1264) [2021-11-19 14:04:09,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4815 states to 4815 states and 6495 transitions. [2021-11-19 14:04:09,250 INFO L78 Accepts]: Start accepts. Automaton has 4815 states and 6495 transitions. Word has length 132 [2021-11-19 14:04:09,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:04:09,251 INFO L470 AbstractCegarLoop]: Abstraction has 4815 states and 6495 transitions. [2021-11-19 14:04:09,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-19 14:04:09,251 INFO L276 IsEmpty]: Start isEmpty. Operand 4815 states and 6495 transitions. [2021-11-19 14:04:09,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-19 14:04:09,254 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:09,254 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:04:09,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:09,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:04:09,467 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:04:09,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:09,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1804007079, now seen corresponding path program 1 times [2021-11-19 14:04:09,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:09,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055781916] [2021-11-19 14:04:09,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:09,470 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:09,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:09,471 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:09,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-19 14:04:11,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:11,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 1834 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:04:11,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:13,430 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:04:13,430 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:14,058 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:04:14,058 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:04:14,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055781916] [2021-11-19 14:04:14,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1055781916] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:04:14,058 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:04:14,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:04:14,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264873616] [2021-11-19 14:04:14,058 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:04:14,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:04:14,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:04:14,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:04:14,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:04:14,060 INFO L87 Difference]: Start difference. First operand 4815 states and 6495 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-19 14:04:14,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:04:14,408 INFO L93 Difference]: Finished difference Result 4815 states and 6495 transitions. [2021-11-19 14:04:14,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:04:14,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 138 [2021-11-19 14:04:14,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:04:14,433 INFO L225 Difference]: With dead ends: 4815 [2021-11-19 14:04:14,434 INFO L226 Difference]: Without dead ends: 4813 [2021-11-19 14:04:14,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:04:14,436 INFO L933 BasicCegarLoop]: 3725 mSDtfsCounter, 3604 mSDsluCounter, 7446 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3606 SdHoareTripleChecker+Valid, 11171 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:04:14,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3606 Valid, 11171 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:04:14,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4813 states. [2021-11-19 14:04:14,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4813 to 4813. [2021-11-19 14:04:14,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4813 states, 3229 states have (on average 1.2273149581913905) internal successors, (3963), 3293 states have internal predecessors, (3963), 1266 states have call successors, (1266), 307 states have call predecessors, (1266), 306 states have return successors, (1264), 1258 states have call predecessors, (1264), 1264 states have call successors, (1264) [2021-11-19 14:04:14,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4813 states to 4813 states and 6493 transitions. [2021-11-19 14:04:14,997 INFO L78 Accepts]: Start accepts. Automaton has 4813 states and 6493 transitions. Word has length 138 [2021-11-19 14:04:14,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:04:14,998 INFO L470 AbstractCegarLoop]: Abstraction has 4813 states and 6493 transitions. [2021-11-19 14:04:14,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-19 14:04:14,998 INFO L276 IsEmpty]: Start isEmpty. Operand 4813 states and 6493 transitions. [2021-11-19 14:04:15,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-19 14:04:15,001 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:15,001 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:04:15,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:15,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:04:15,223 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:04:15,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:15,224 INFO L85 PathProgramCache]: Analyzing trace with hash 128985629, now seen corresponding path program 1 times [2021-11-19 14:04:15,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:15,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2015352765] [2021-11-19 14:04:15,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:15,226 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:15,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:15,227 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:15,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-19 14:04:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:17,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 1968 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:04:17,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:20,030 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 95 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-11-19 14:04:20,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:21,823 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2021-11-19 14:04:21,823 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:04:21,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2015352765] [2021-11-19 14:04:21,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2015352765] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:04:21,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1738640615] [2021-11-19 14:04:21,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:21,824 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:04:21,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:04:21,836 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:04:21,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2021-11-19 14:04:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:23,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 1968 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:04:23,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:24,080 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2021-11-19 14:04:24,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:24,661 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2021-11-19 14:04:24,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1738640615] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:04:24,662 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:04:24,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [17, 17] total 23 [2021-11-19 14:04:24,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574997662] [2021-11-19 14:04:24,662 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:04:24,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:04:24,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:04:24,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:04:24,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2021-11-19 14:04:24,664 INFO L87 Difference]: Start difference. First operand 4813 states and 6493 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 1 states have call successors, (24) [2021-11-19 14:04:25,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:04:25,219 INFO L93 Difference]: Finished difference Result 9619 states and 13037 transitions. [2021-11-19 14:04:25,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:04:25,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 1 states have call successors, (24) Word has length 162 [2021-11-19 14:04:25,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:04:25,252 INFO L225 Difference]: With dead ends: 9619 [2021-11-19 14:04:25,253 INFO L226 Difference]: Without dead ends: 4827 [2021-11-19 14:04:25,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 623 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=51, Invalid=501, Unknown=0, NotChecked=0, Total=552 [2021-11-19 14:04:25,278 INFO L933 BasicCegarLoop]: 3725 mSDtfsCounter, 3 mSDsluCounter, 11162 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 14887 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:04:25,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 14887 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:04:25,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4827 states. [2021-11-19 14:04:25,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4827 to 4825. [2021-11-19 14:04:25,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4825 states, 3238 states have (on average 1.2266831377393452) internal successors, (3972), 3302 states have internal predecessors, (3972), 1266 states have call successors, (1266), 307 states have call predecessors, (1266), 309 states have return successors, (1305), 1261 states have call predecessors, (1305), 1264 states have call successors, (1305) [2021-11-19 14:04:25,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4825 states to 4825 states and 6543 transitions. [2021-11-19 14:04:25,717 INFO L78 Accepts]: Start accepts. Automaton has 4825 states and 6543 transitions. Word has length 162 [2021-11-19 14:04:25,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:04:25,718 INFO L470 AbstractCegarLoop]: Abstraction has 4825 states and 6543 transitions. [2021-11-19 14:04:25,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 1 states have call successors, (24) [2021-11-19 14:04:25,718 INFO L276 IsEmpty]: Start isEmpty. Operand 4825 states and 6543 transitions. [2021-11-19 14:04:25,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-19 14:04:25,721 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:25,721 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:04:25,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:25,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:26,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:04:26,143 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:04:26,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:26,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1636537438, now seen corresponding path program 1 times [2021-11-19 14:04:26,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:26,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886319162] [2021-11-19 14:04:26,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:26,145 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:26,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:26,146 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:26,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-19 14:04:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:28,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 1968 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:04:28,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:31,097 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 95 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-11-19 14:04:31,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:33,063 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2021-11-19 14:04:33,063 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:04:33,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886319162] [2021-11-19 14:04:33,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [886319162] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:04:33,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [275629352] [2021-11-19 14:04:33,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:33,063 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:04:33,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:04:33,064 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:04:33,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2021-11-19 14:04:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:36,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 1968 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:04:36,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:37,274 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2021-11-19 14:04:37,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:37,958 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2021-11-19 14:04:37,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [275629352] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:04:37,958 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:04:37,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [17, 17] total 22 [2021-11-19 14:04:37,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471599073] [2021-11-19 14:04:37,958 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:04:37,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:04:37,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:04:37,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:04:37,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462 [2021-11-19 14:04:37,960 INFO L87 Difference]: Start difference. First operand 4825 states and 6543 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, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) [2021-11-19 14:04:38,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:04:38,391 INFO L93 Difference]: Finished difference Result 9693 states and 13415 transitions. [2021-11-19 14:04:38,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:04:38,391 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, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) Word has length 162 [2021-11-19 14:04:38,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:04:38,413 INFO L225 Difference]: With dead ends: 9693 [2021-11-19 14:04:38,414 INFO L226 Difference]: Without dead ends: 4889 [2021-11-19 14:04:38,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 644 GetRequests, 624 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462 [2021-11-19 14:04:38,438 INFO L933 BasicCegarLoop]: 3727 mSDtfsCounter, 21 mSDsluCounter, 3723 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 7450 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:04:38,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 7450 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:04:38,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4889 states. [2021-11-19 14:04:38,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4889 to 4853. [2021-11-19 14:04:38,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4853 states, 3258 states have (on average 1.2265193370165746) internal successors, (3996), 3322 states have internal predecessors, (3996), 1274 states have call successors, (1274), 307 states have call predecessors, (1274), 309 states have return successors, (1313), 1269 states have call predecessors, (1313), 1272 states have call successors, (1313) [2021-11-19 14:04:38,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4853 states to 4853 states and 6583 transitions. [2021-11-19 14:04:38,938 INFO L78 Accepts]: Start accepts. Automaton has 4853 states and 6583 transitions. Word has length 162 [2021-11-19 14:04:38,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:04:38,939 INFO L470 AbstractCegarLoop]: Abstraction has 4853 states and 6583 transitions. [2021-11-19 14:04:38,939 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, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) [2021-11-19 14:04:38,939 INFO L276 IsEmpty]: Start isEmpty. Operand 4853 states and 6583 transitions. [2021-11-19 14:04:38,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-19 14:04:38,942 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:38,942 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:04:38,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (27)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:39,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (26)] Ended with exit code 0 [2021-11-19 14:04:39,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:04:39,347 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:04:39,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:39,348 INFO L85 PathProgramCache]: Analyzing trace with hash -176559558, now seen corresponding path program 1 times [2021-11-19 14:04:39,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:39,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1243837013] [2021-11-19 14:04:39,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:39,349 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:39,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:39,350 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:39,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-19 14:04:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:41,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 1843 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:04:41,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:43,617 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:04:43,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:45,110 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:04:45,111 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:04:45,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1243837013] [2021-11-19 14:04:45,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1243837013] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:04:45,111 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:04:45,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2021-11-19 14:04:45,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124744921] [2021-11-19 14:04:45,112 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:04:45,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:04:45,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:04:45,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:04:45,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:04:45,114 INFO L87 Difference]: Start difference. First operand 4853 states and 6583 transitions. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-19 14:04:48,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:04:48,124 INFO L93 Difference]: Finished difference Result 4853 states and 6583 transitions. [2021-11-19 14:04:48,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:04:48,124 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 144 [2021-11-19 14:04:48,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:04:48,136 INFO L225 Difference]: With dead ends: 4853 [2021-11-19 14:04:48,136 INFO L226 Difference]: Without dead ends: 4851 [2021-11-19 14:04:48,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:04:48,139 INFO L933 BasicCegarLoop]: 3723 mSDtfsCounter, 5818 mSDsluCounter, 7442 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1462 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5820 SdHoareTripleChecker+Valid, 11165 SdHoareTripleChecker+Invalid, 1464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1462 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:04:48,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5820 Valid, 11165 Invalid, 1464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1462 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-19 14:04:48,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4851 states. [2021-11-19 14:04:48,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4851 to 4851. [2021-11-19 14:04:48,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4851 states, 3257 states have (on average 1.226281854467301) internal successors, (3994), 3320 states have internal predecessors, (3994), 1274 states have call successors, (1274), 307 states have call predecessors, (1274), 309 states have return successors, (1313), 1269 states have call predecessors, (1313), 1272 states have call successors, (1313) [2021-11-19 14:04:48,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4851 states to 4851 states and 6581 transitions. [2021-11-19 14:04:48,756 INFO L78 Accepts]: Start accepts. Automaton has 4851 states and 6581 transitions. Word has length 144 [2021-11-19 14:04:48,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:04:48,757 INFO L470 AbstractCegarLoop]: Abstraction has 4851 states and 6581 transitions. [2021-11-19 14:04:48,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-19 14:04:48,757 INFO L276 IsEmpty]: Start isEmpty. Operand 4851 states and 6581 transitions. [2021-11-19 14:04:48,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-19 14:04:48,760 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:48,760 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:04:48,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:48,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:04:48,975 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:04:48,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:48,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1440404068, now seen corresponding path program 1 times [2021-11-19 14:04:48,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:48,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2044587977] [2021-11-19 14:04:48,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:48,978 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:48,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:48,980 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:49,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-19 14:04:51,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:51,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 1987 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:04:51,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:54,405 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 95 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-11-19 14:04:54,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:56,253 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2021-11-19 14:04:56,253 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:04:56,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2044587977] [2021-11-19 14:04:56,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2044587977] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:04:56,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1889532618] [2021-11-19 14:04:56,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:56,254 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:04:56,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:04:56,256 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:04:56,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2021-11-19 14:04:57,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:57,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 1987 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:04:57,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:58,140 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2021-11-19 14:04:58,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:58,554 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2021-11-19 14:04:58,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1889532618] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:04:58,554 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:04:58,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [17, 17] total 21 [2021-11-19 14:04:58,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605897540] [2021-11-19 14:04:58,555 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:04:58,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:04:58,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:04:58,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:04:58,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2021-11-19 14:04:58,556 INFO L87 Difference]: Start difference. First operand 4851 states and 6581 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2021-11-19 14:04:59,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:04:59,100 INFO L93 Difference]: Finished difference Result 9687 states and 13216 transitions. [2021-11-19 14:04:59,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:04:59,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173 [2021-11-19 14:04:59,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:04:59,118 INFO L225 Difference]: With dead ends: 9687 [2021-11-19 14:04:59,118 INFO L226 Difference]: Without dead ends: 4857 [2021-11-19 14:04:59,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 688 GetRequests, 669 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2021-11-19 14:04:59,134 INFO L933 BasicCegarLoop]: 3724 mSDtfsCounter, 2 mSDsluCounter, 3719 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7443 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:04:59,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 7443 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:04:59,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4857 states. [2021-11-19 14:04:59,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4857 to 4855. [2021-11-19 14:04:59,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4855 states, 3261 states have (on average 1.2260042931616069) internal successors, (3998), 3324 states have internal predecessors, (3998), 1274 states have call successors, (1274), 307 states have call predecessors, (1274), 309 states have return successors, (1313), 1269 states have call predecessors, (1313), 1272 states have call successors, (1313) [2021-11-19 14:04:59,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4855 states to 4855 states and 6585 transitions. [2021-11-19 14:04:59,520 INFO L78 Accepts]: Start accepts. Automaton has 4855 states and 6585 transitions. Word has length 173 [2021-11-19 14:04:59,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:04:59,521 INFO L470 AbstractCegarLoop]: Abstraction has 4855 states and 6585 transitions. [2021-11-19 14:04:59,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2021-11-19 14:04:59,521 INFO L276 IsEmpty]: Start isEmpty. Operand 4855 states and 6585 transitions. [2021-11-19 14:04:59,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-19 14:04:59,523 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:59,523 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:04:59,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (29)] Ended with exit code 0 [2021-11-19 14:04:59,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2021-11-19 14:04:59,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:04:59,939 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:04:59,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:59,940 INFO L85 PathProgramCache]: Analyzing trace with hash 747141799, now seen corresponding path program 1 times [2021-11-19 14:04:59,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:59,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [415988554] [2021-11-19 14:04:59,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:59,942 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:59,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:59,943 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:59,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-19 14:05:02,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:05:02,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 1852 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:05:02,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:05:03,964 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:05:03,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:05:04,686 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:05:04,686 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:05:04,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [415988554] [2021-11-19 14:05:04,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [415988554] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:05:04,686 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:05:04,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:05:04,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282337308] [2021-11-19 14:05:04,687 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:05:04,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:05:04,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:05:04,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:05:04,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:05:04,688 INFO L87 Difference]: Start difference. First operand 4855 states and 6585 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-19 14:05:05,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:05:05,046 INFO L93 Difference]: Finished difference Result 4855 states and 6585 transitions. [2021-11-19 14:05:05,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:05:05,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 150 [2021-11-19 14:05:05,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:05:05,066 INFO L225 Difference]: With dead ends: 4855 [2021-11-19 14:05:05,066 INFO L226 Difference]: Without dead ends: 4853 [2021-11-19 14:05:05,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 294 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:05:05,071 INFO L933 BasicCegarLoop]: 3721 mSDtfsCounter, 3588 mSDsluCounter, 7438 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3590 SdHoareTripleChecker+Valid, 11159 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:05:05,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3590 Valid, 11159 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:05:05,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4853 states. [2021-11-19 14:05:05,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4853 to 4853. [2021-11-19 14:05:05,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4853 states, 3260 states have (on average 1.2257668711656442) internal successors, (3996), 3322 states have internal predecessors, (3996), 1274 states have call successors, (1274), 307 states have call predecessors, (1274), 309 states have return successors, (1313), 1269 states have call predecessors, (1313), 1272 states have call successors, (1313) [2021-11-19 14:05:05,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4853 states to 4853 states and 6583 transitions. [2021-11-19 14:05:05,641 INFO L78 Accepts]: Start accepts. Automaton has 4853 states and 6583 transitions. Word has length 150 [2021-11-19 14:05:05,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:05:05,642 INFO L470 AbstractCegarLoop]: Abstraction has 4853 states and 6583 transitions. [2021-11-19 14:05:05,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-19 14:05:05,642 INFO L276 IsEmpty]: Start isEmpty. Operand 4853 states and 6583 transitions. [2021-11-19 14:05:05,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-19 14:05:05,645 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:05:05,646 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:05:05,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-11-19 14:05:05,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:05:05,852 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:05:05,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:05:05,853 INFO L85 PathProgramCache]: Analyzing trace with hash 788842412, now seen corresponding path program 1 times [2021-11-19 14:05:05,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:05:05,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131307416] [2021-11-19 14:05:05,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:05:05,855 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:05:05,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:05:05,855 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:05:05,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-11-19 14:05:08,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:05:08,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 1861 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:05:08,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:05:10,448 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:05:10,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:05:11,316 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:05:11,317 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:05:11,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131307416] [2021-11-19 14:05:11,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1131307416] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:05:11,317 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:05:11,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:05:11,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982814258] [2021-11-19 14:05:11,317 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:05:11,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:05:11,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:05:11,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:05:11,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:05:11,319 INFO L87 Difference]: Start difference. First operand 4853 states and 6583 transitions. Second operand has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-19 14:05:11,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:05:11,777 INFO L93 Difference]: Finished difference Result 4853 states and 6583 transitions. [2021-11-19 14:05:11,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:05:11,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 156 [2021-11-19 14:05:11,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:05:11,795 INFO L225 Difference]: With dead ends: 4853 [2021-11-19 14:05:11,795 INFO L226 Difference]: Without dead ends: 4851 [2021-11-19 14:05:11,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:05:11,799 INFO L933 BasicCegarLoop]: 3719 mSDtfsCounter, 3580 mSDsluCounter, 7434 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3582 SdHoareTripleChecker+Valid, 11153 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:05:11,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3582 Valid, 11153 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:05:11,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4851 states. [2021-11-19 14:05:12,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4851 to 4851. [2021-11-19 14:05:12,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4851 states, 3259 states have (on average 1.2255293034673214) internal successors, (3994), 3320 states have internal predecessors, (3994), 1274 states have call successors, (1274), 307 states have call predecessors, (1274), 309 states have return successors, (1313), 1269 states have call predecessors, (1313), 1272 states have call successors, (1313) [2021-11-19 14:05:12,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4851 states to 4851 states and 6581 transitions. [2021-11-19 14:05:12,326 INFO L78 Accepts]: Start accepts. Automaton has 4851 states and 6581 transitions. Word has length 156 [2021-11-19 14:05:12,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:05:12,327 INFO L470 AbstractCegarLoop]: Abstraction has 4851 states and 6581 transitions. [2021-11-19 14:05:12,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-19 14:05:12,327 INFO L276 IsEmpty]: Start isEmpty. Operand 4851 states and 6581 transitions. [2021-11-19 14:05:12,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-19 14:05:12,330 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:05:12,331 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:05:12,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-11-19 14:05:12,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:05:12,547 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:05:12,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:05:12,548 INFO L85 PathProgramCache]: Analyzing trace with hash -2027612812, now seen corresponding path program 1 times [2021-11-19 14:05:12,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:05:12,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2120031494] [2021-11-19 14:05:12,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:05:12,550 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:05:12,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:05:12,551 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:05:12,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-11-19 14:05:14,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:05:14,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 1870 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:05:15,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:05:16,985 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:05:16,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:05:17,756 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:05:17,756 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:05:17,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2120031494] [2021-11-19 14:05:17,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2120031494] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:05:17,757 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:05:17,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:05:17,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885068369] [2021-11-19 14:05:17,757 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:05:17,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:05:17,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:05:17,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:05:17,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:05:17,759 INFO L87 Difference]: Start difference. First operand 4851 states and 6581 transitions. Second operand has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-19 14:05:18,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:05:18,138 INFO L93 Difference]: Finished difference Result 4851 states and 6581 transitions. [2021-11-19 14:05:18,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:05:18,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 162 [2021-11-19 14:05:18,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:05:18,159 INFO L225 Difference]: With dead ends: 4851 [2021-11-19 14:05:18,159 INFO L226 Difference]: Without dead ends: 4849 [2021-11-19 14:05:18,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:05:18,164 INFO L933 BasicCegarLoop]: 3717 mSDtfsCounter, 3575 mSDsluCounter, 3715 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3577 SdHoareTripleChecker+Valid, 7432 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:05:18,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3577 Valid, 7432 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:05:18,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4849 states. [2021-11-19 14:05:18,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4849 to 4849. [2021-11-19 14:05:18,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4849 states, 3258 states have (on average 1.225291589932474) internal successors, (3992), 3318 states have internal predecessors, (3992), 1274 states have call successors, (1274), 307 states have call predecessors, (1274), 309 states have return successors, (1313), 1269 states have call predecessors, (1313), 1272 states have call successors, (1313) [2021-11-19 14:05:18,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4849 states to 4849 states and 6579 transitions. [2021-11-19 14:05:18,829 INFO L78 Accepts]: Start accepts. Automaton has 4849 states and 6579 transitions. Word has length 162 [2021-11-19 14:05:18,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:05:18,830 INFO L470 AbstractCegarLoop]: Abstraction has 4849 states and 6579 transitions. [2021-11-19 14:05:18,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-19 14:05:18,830 INFO L276 IsEmpty]: Start isEmpty. Operand 4849 states and 6579 transitions. [2021-11-19 14:05:18,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-19 14:05:18,834 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:05:18,834 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:05:18,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-11-19 14:05:19,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:05:19,047 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:05:19,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:05:19,047 INFO L85 PathProgramCache]: Analyzing trace with hash -551408878, now seen corresponding path program 1 times [2021-11-19 14:05:19,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:05:19,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [253453556] [2021-11-19 14:05:19,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:05:19,050 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:05:19,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:05:19,050 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:05:19,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-11-19 14:05:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:05:21,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 2010 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:05:21,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:05:23,968 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 95 proven. 3 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-19 14:05:23,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:05:25,794 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-19 14:05:25,794 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:05:25,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [253453556] [2021-11-19 14:05:25,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [253453556] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:05:25,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [942287795] [2021-11-19 14:05:25,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:05:25,795 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:05:25,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:05:25,798 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:05:25,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2021-11-19 14:05:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:05:29,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 2010 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:05:29,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:05:30,511 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2021-11-19 14:05:30,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:05:31,891 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2021-11-19 14:05:31,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [942287795] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:05:31,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661857066] [2021-11-19 14:05:31,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:05:31,892 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:05:31,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:05:31,893 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:05:31,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-11-19 14:05:33,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:05:33,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 2010 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:05:33,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:05:35,271 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 95 proven. 3 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-19 14:05:35,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:05:36,771 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-19 14:05:36,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661857066] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:05:36,772 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 14:05:36,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 5, 5, 17, 17] total 26 [2021-11-19 14:05:36,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658335178] [2021-11-19 14:05:36,773 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 14:05:36,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-19 14:05:36,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:05:36,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-19 14:05:36,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=588, Unknown=0, NotChecked=0, Total=650 [2021-11-19 14:05:36,776 INFO L87 Difference]: Start difference. First operand 4849 states and 6579 transitions. Second operand has 26 states, 25 states have (on average 6.8) internal successors, (170), 24 states have internal predecessors, (170), 11 states have call successors, (69), 2 states have call predecessors, (69), 5 states have return successors, (69), 12 states have call predecessors, (69), 11 states have call successors, (69) [2021-11-19 14:05:47,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:05:47,330 INFO L93 Difference]: Finished difference Result 9880 states and 13764 transitions. [2021-11-19 14:05:47,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-19 14:05:47,331 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 6.8) internal successors, (170), 24 states have internal predecessors, (170), 11 states have call successors, (69), 2 states have call predecessors, (69), 5 states have return successors, (69), 12 states have call predecessors, (69), 11 states have call successors, (69) Word has length 186 [2021-11-19 14:05:47,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:05:47,351 INFO L225 Difference]: With dead ends: 9880 [2021-11-19 14:05:47,351 INFO L226 Difference]: Without dead ends: 5051 [2021-11-19 14:05:47,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1126 GetRequests, 1089 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=198, Invalid=1284, Unknown=0, NotChecked=0, Total=1482 [2021-11-19 14:05:47,371 INFO L933 BasicCegarLoop]: 3765 mSDtfsCounter, 131 mSDsluCounter, 78686 mSDsCounter, 0 mSdLazyCounter, 1156 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 82451 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 1156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:05:47,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 82451 Invalid, 1419 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [263 Valid, 1156 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2021-11-19 14:05:47,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5051 states. [2021-11-19 14:05:47,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5051 to 4959. [2021-11-19 14:05:47,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4959 states, 3332 states have (on average 1.2250900360144057) internal successors, (4082), 3392 states have internal predecessors, (4082), 1310 states have call successors, (1310), 307 states have call predecessors, (1310), 309 states have return successors, (1349), 1305 states have call predecessors, (1349), 1308 states have call successors, (1349) [2021-11-19 14:05:47,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4959 states to 4959 states and 6741 transitions. [2021-11-19 14:05:47,853 INFO L78 Accepts]: Start accepts. Automaton has 4959 states and 6741 transitions. Word has length 186 [2021-11-19 14:05:47,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:05:47,854 INFO L470 AbstractCegarLoop]: Abstraction has 4959 states and 6741 transitions. [2021-11-19 14:05:47,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 6.8) internal successors, (170), 24 states have internal predecessors, (170), 11 states have call successors, (69), 2 states have call predecessors, (69), 5 states have return successors, (69), 12 states have call predecessors, (69), 11 states have call successors, (69) [2021-11-19 14:05:47,854 INFO L276 IsEmpty]: Start isEmpty. Operand 4959 states and 6741 transitions. [2021-11-19 14:05:47,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-19 14:05:47,857 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:05:47,857 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:05:47,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-11-19 14:05:48,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (35)] Forceful destruction successful, exit code 0 [2021-11-19 14:05:48,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2021-11-19 14:05:48,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:05:48,471 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:05:48,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:05:48,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1275987705, now seen corresponding path program 1 times [2021-11-19 14:05:48,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:05:48,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [807778643] [2021-11-19 14:05:48,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:05:48,473 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:05:48,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:05:48,474 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:05:48,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-11-19 14:05:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:05:50,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 1879 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:05:50,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:05:52,755 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:05:52,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:05:53,566 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:05:53,566 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:05:53,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [807778643] [2021-11-19 14:05:53,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [807778643] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:05:53,566 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:05:53,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:05:53,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688448689] [2021-11-19 14:05:53,567 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:05:53,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:05:53,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:05:53,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:05:53,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:05:53,568 INFO L87 Difference]: Start difference. First operand 4959 states and 6741 transitions. Second operand has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-19 14:05:53,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:05:53,970 INFO L93 Difference]: Finished difference Result 4959 states and 6741 transitions. [2021-11-19 14:05:53,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:05:53,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 168 [2021-11-19 14:05:53,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:05:53,987 INFO L225 Difference]: With dead ends: 4959 [2021-11-19 14:05:53,987 INFO L226 Difference]: Without dead ends: 4957 [2021-11-19 14:05:53,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:05:53,990 INFO L933 BasicCegarLoop]: 3715 mSDtfsCounter, 3567 mSDsluCounter, 3713 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3569 SdHoareTripleChecker+Valid, 7428 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:05:53,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3569 Valid, 7428 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:05:53,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4957 states. [2021-11-19 14:05:54,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4957 to 4957. [2021-11-19 14:05:54,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4957 states, 3331 states have (on average 1.224857400180126) internal successors, (4080), 3390 states have internal predecessors, (4080), 1310 states have call successors, (1310), 307 states have call predecessors, (1310), 309 states have return successors, (1349), 1305 states have call predecessors, (1349), 1308 states have call successors, (1349) [2021-11-19 14:05:54,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4957 states to 4957 states and 6739 transitions. [2021-11-19 14:05:54,512 INFO L78 Accepts]: Start accepts. Automaton has 4957 states and 6739 transitions. Word has length 168 [2021-11-19 14:05:54,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:05:54,512 INFO L470 AbstractCegarLoop]: Abstraction has 4957 states and 6739 transitions. [2021-11-19 14:05:54,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-19 14:05:54,513 INFO L276 IsEmpty]: Start isEmpty. Operand 4957 states and 6739 transitions. [2021-11-19 14:05:54,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-19 14:05:54,516 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:05:54,516 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:05:54,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2021-11-19 14:05:54,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:05:54,717 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:05:54,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:05:54,717 INFO L85 PathProgramCache]: Analyzing trace with hash 143132723, now seen corresponding path program 1 times [2021-11-19 14:05:54,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:05:54,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [817116410] [2021-11-19 14:05:54,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:05:54,719 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:05:54,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:05:54,720 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:05:54,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-11-19 14:05:56,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:05:57,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 1888 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:05:57,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:05:59,279 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:05:59,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:06:00,176 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:06:00,176 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:06:00,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [817116410] [2021-11-19 14:06:00,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [817116410] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:06:00,178 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:06:00,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:06:00,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134897343] [2021-11-19 14:06:00,178 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:06:00,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:06:00,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:06:00,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:06:00,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:06:00,179 INFO L87 Difference]: Start difference. First operand 4957 states and 6739 transitions. Second operand has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-19 14:06:00,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:06:00,670 INFO L93 Difference]: Finished difference Result 4957 states and 6739 transitions. [2021-11-19 14:06:00,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:06:00,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 174 [2021-11-19 14:06:00,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:06:00,693 INFO L225 Difference]: With dead ends: 4957 [2021-11-19 14:06:00,693 INFO L226 Difference]: Without dead ends: 4955 [2021-11-19 14:06:00,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:06:00,698 INFO L933 BasicCegarLoop]: 3713 mSDtfsCounter, 3556 mSDsluCounter, 7422 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3558 SdHoareTripleChecker+Valid, 11135 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:06:00,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3558 Valid, 11135 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:06:00,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4955 states. [2021-11-19 14:06:01,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4955 to 4955. [2021-11-19 14:06:01,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4955 states, 3330 states have (on average 1.2246246246246246) internal successors, (4078), 3388 states have internal predecessors, (4078), 1310 states have call successors, (1310), 307 states have call predecessors, (1310), 309 states have return successors, (1349), 1305 states have call predecessors, (1349), 1308 states have call successors, (1349) [2021-11-19 14:06:01,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4955 states to 4955 states and 6737 transitions. [2021-11-19 14:06:01,204 INFO L78 Accepts]: Start accepts. Automaton has 4955 states and 6737 transitions. Word has length 174 [2021-11-19 14:06:01,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:06:01,204 INFO L470 AbstractCegarLoop]: Abstraction has 4955 states and 6737 transitions. [2021-11-19 14:06:01,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-19 14:06:01,205 INFO L276 IsEmpty]: Start isEmpty. Operand 4955 states and 6737 transitions. [2021-11-19 14:06:01,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-19 14:06:01,208 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:06:01,209 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:06:01,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (38)] Ended with exit code 0 [2021-11-19 14:06:01,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:06:01,421 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:06:01,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:06:01,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1819415184, now seen corresponding path program 1 times [2021-11-19 14:06:01,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:06:01,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [754025727] [2021-11-19 14:06:01,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:06:01,423 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:06:01,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:06:01,424 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:06:01,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-11-19 14:06:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:06:03,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 1897 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:06:03,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:06:06,417 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:06:06,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:06:07,344 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:06:07,345 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:06:07,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [754025727] [2021-11-19 14:06:07,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [754025727] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:06:07,345 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:06:07,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:06:07,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775235874] [2021-11-19 14:06:07,345 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:06:07,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:06:07,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:06:07,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:06:07,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:06:07,347 INFO L87 Difference]: Start difference. First operand 4955 states and 6737 transitions. Second operand has 5 states, 5 states have (on average 40.8) internal successors, (204), 5 states have internal predecessors, (204), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-19 14:06:07,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:06:07,832 INFO L93 Difference]: Finished difference Result 4955 states and 6737 transitions. [2021-11-19 14:06:07,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:06:07,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 5 states have internal predecessors, (204), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 180 [2021-11-19 14:06:07,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:06:07,848 INFO L225 Difference]: With dead ends: 4955 [2021-11-19 14:06:07,849 INFO L226 Difference]: Without dead ends: 4780 [2021-11-19 14:06:07,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:06:07,852 INFO L933 BasicCegarLoop]: 3712 mSDtfsCounter, 3547 mSDsluCounter, 7424 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3547 SdHoareTripleChecker+Valid, 11136 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:06:07,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3547 Valid, 11136 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:06:07,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4780 states. [2021-11-19 14:06:08,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4780 to 4780. [2021-11-19 14:06:08,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4780 states, 3222 states have (on average 1.2309124767225326) internal successors, (3966), 3279 states have internal predecessors, (3966), 1263 states have call successors, (1263), 287 states have call predecessors, (1263), 290 states have return successors, (1303), 1259 states have call predecessors, (1303), 1262 states have call successors, (1303) [2021-11-19 14:06:08,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4780 states to 4780 states and 6532 transitions. [2021-11-19 14:06:08,422 INFO L78 Accepts]: Start accepts. Automaton has 4780 states and 6532 transitions. Word has length 180 [2021-11-19 14:06:08,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:06:08,422 INFO L470 AbstractCegarLoop]: Abstraction has 4780 states and 6532 transitions. [2021-11-19 14:06:08,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 5 states have internal predecessors, (204), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-19 14:06:08,422 INFO L276 IsEmpty]: Start isEmpty. Operand 4780 states and 6532 transitions. [2021-11-19 14:06:08,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-11-19 14:06:08,426 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:06:08,427 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:06:08,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2021-11-19 14:06:08,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:06:08,651 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:06:08,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:06:08,651 INFO L85 PathProgramCache]: Analyzing trace with hash 2066618738, now seen corresponding path program 1 times [2021-11-19 14:06:08,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:06:08,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [510250333] [2021-11-19 14:06:08,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:06:08,653 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:06:08,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:06:08,654 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:06:08,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-11-19 14:06:11,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:06:11,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 2376 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 14:06:11,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:06:13,399 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 165 proven. 3 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2021-11-19 14:06:13,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:06:15,040 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 6 proven. 39 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2021-11-19 14:06:15,040 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:06:15,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [510250333] [2021-11-19 14:06:15,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [510250333] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:06:15,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [336841353] [2021-11-19 14:06:15,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:06:15,040 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:06:15,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:06:15,041 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:06:15,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2021-11-19 14:06:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:06:16,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 2376 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 14:06:16,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:06:19,996 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-11-19 14:06:19,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:06:21,684 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-11-19 14:06:21,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [336841353] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:06:21,684 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:06:21,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [8, 8] total 14 [2021-11-19 14:06:21,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573263454] [2021-11-19 14:06:21,685 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:06:21,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:06:21,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:06:21,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:06:21,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:06:21,686 INFO L87 Difference]: Start difference. First operand 4780 states and 6532 transitions. Second operand has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 6 states have internal predecessors, (156), 2 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (64), 3 states have call predecessors, (64), 2 states have call successors, (64) [2021-11-19 14:06:23,922 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:06:25,929 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:06:46,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:06:46,637 INFO L93 Difference]: Finished difference Result 10233 states and 13899 transitions. [2021-11-19 14:06:46,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:06:46,638 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 6 states have internal predecessors, (156), 2 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (64), 3 states have call predecessors, (64), 2 states have call successors, (64) Word has length 262 [2021-11-19 14:06:46,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:06:46,718 INFO L225 Difference]: With dead ends: 10233 [2021-11-19 14:06:46,718 INFO L226 Difference]: Without dead ends: 5465 [2021-11-19 14:06:46,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1046 GetRequests, 1032 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-11-19 14:06:46,728 INFO L933 BasicCegarLoop]: 3802 mSDtfsCounter, 3347 mSDsluCounter, 12550 mSDsCounter, 0 mSdLazyCounter, 2794 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3352 SdHoareTripleChecker+Valid, 16352 SdHoareTripleChecker+Invalid, 2799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2794 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:06:46,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3352 Valid, 16352 Invalid, 2799 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2794 Invalid, 2 Unknown, 0 Unchecked, 23.8s Time] [2021-11-19 14:06:46,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5465 states. [2021-11-19 14:06:47,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5465 to 5461. [2021-11-19 14:06:47,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5461 states, 3675 states have (on average 1.2253061224489796) internal successors, (4503), 3738 states have internal predecessors, (4503), 1413 states have call successors, (1413), 366 states have call predecessors, (1413), 368 states have return successors, (1451), 1408 states have call predecessors, (1451), 1411 states have call successors, (1451) [2021-11-19 14:06:47,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5461 states to 5461 states and 7367 transitions. [2021-11-19 14:06:47,355 INFO L78 Accepts]: Start accepts. Automaton has 5461 states and 7367 transitions. Word has length 262 [2021-11-19 14:06:47,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:06:47,355 INFO L470 AbstractCegarLoop]: Abstraction has 5461 states and 7367 transitions. [2021-11-19 14:06:47,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 6 states have internal predecessors, (156), 2 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (64), 3 states have call predecessors, (64), 2 states have call successors, (64) [2021-11-19 14:06:47,356 INFO L276 IsEmpty]: Start isEmpty. Operand 5461 states and 7367 transitions. [2021-11-19 14:06:47,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-11-19 14:06:47,360 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:06:47,360 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:06:47,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (41)] Forceful destruction successful, exit code 0 [2021-11-19 14:06:47,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2021-11-19 14:06:47,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:06:47,761 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:06:47,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:06:47,761 INFO L85 PathProgramCache]: Analyzing trace with hash 2066678320, now seen corresponding path program 1 times [2021-11-19 14:06:47,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:06:47,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2104277416] [2021-11-19 14:06:47,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:06:47,763 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:06:47,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:06:47,764 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:06:47,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-11-19 14:06:50,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:06:50,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 2376 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 14:06:50,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:06:52,657 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 165 proven. 3 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2021-11-19 14:06:52,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:06:54,313 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 6 proven. 39 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2021-11-19 14:06:54,313 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:06:54,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2104277416] [2021-11-19 14:06:54,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2104277416] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:06:54,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [337194698] [2021-11-19 14:06:54,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:06:54,314 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:06:54,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:06:54,317 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:06:54,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2021-11-19 14:06:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:06:58,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 2376 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-19 14:06:58,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:00,381 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2021-11-19 14:07:00,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:01,700 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2021-11-19 14:07:01,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [337194698] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:07:01,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:07:01,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 8, 6] total 13 [2021-11-19 14:07:01,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791377702] [2021-11-19 14:07:01,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:07:01,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:07:01,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:07:01,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:07:01,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-11-19 14:07:01,702 INFO L87 Difference]: Start difference. First operand 5461 states and 7367 transitions. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 5 states have internal predecessors, (121), 3 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (35), 4 states have call predecessors, (35), 3 states have call successors, (35) [2021-11-19 14:07:02,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:07:02,470 INFO L93 Difference]: Finished difference Result 10907 states and 14713 transitions. [2021-11-19 14:07:02,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:07:02,472 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 5 states have internal predecessors, (121), 3 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (35), 4 states have call predecessors, (35), 3 states have call successors, (35) Word has length 262 [2021-11-19 14:07:02,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:07:02,491 INFO L225 Difference]: With dead ends: 10907 [2021-11-19 14:07:02,491 INFO L226 Difference]: Without dead ends: 5461 [2021-11-19 14:07:02,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1045 GetRequests, 1033 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:07:02,506 INFO L933 BasicCegarLoop]: 3523 mSDtfsCounter, 883 mSDsluCounter, 12889 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 16412 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:07:02,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1197 Valid, 16412 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:07:02,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5461 states. [2021-11-19 14:07:03,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5461 to 5461. [2021-11-19 14:07:03,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5461 states, 3675 states have (on average 1.2250340136054423) internal successors, (4502), 3737 states have internal predecessors, (4502), 1413 states have call successors, (1413), 366 states have call predecessors, (1413), 368 states have return successors, (1451), 1408 states have call predecessors, (1451), 1411 states have call successors, (1451) [2021-11-19 14:07:03,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5461 states to 5461 states and 7366 transitions. [2021-11-19 14:07:03,073 INFO L78 Accepts]: Start accepts. Automaton has 5461 states and 7366 transitions. Word has length 262 [2021-11-19 14:07:03,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:07:03,073 INFO L470 AbstractCegarLoop]: Abstraction has 5461 states and 7366 transitions. [2021-11-19 14:07:03,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 5 states have internal predecessors, (121), 3 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (35), 4 states have call predecessors, (35), 3 states have call successors, (35) [2021-11-19 14:07:03,074 INFO L276 IsEmpty]: Start isEmpty. Operand 5461 states and 7366 transitions. [2021-11-19 14:07:03,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2021-11-19 14:07:03,077 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:07:03,078 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:07:03,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:03,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (43)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:03,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:07:03,479 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:07:03,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:07:03,480 INFO L85 PathProgramCache]: Analyzing trace with hash -92837619, now seen corresponding path program 1 times [2021-11-19 14:07:03,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:07:03,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930360063] [2021-11-19 14:07:03,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:03,482 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:07:03,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:07:03,483 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:07:03,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-11-19 14:07:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:06,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 2387 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-19 14:07:06,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:08,732 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2021-11-19 14:07:08,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:10,769 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 27 proven. 14 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2021-11-19 14:07:10,769 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:07:10,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930360063] [2021-11-19 14:07:10,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930360063] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:07:10,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:07:10,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 17 [2021-11-19 14:07:10,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459261925] [2021-11-19 14:07:10,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:07:10,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 14:07:10,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:07:10,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 14:07:10,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2021-11-19 14:07:10,771 INFO L87 Difference]: Start difference. First operand 5461 states and 7366 transitions. Second operand has 14 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 6 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2021-11-19 14:07:19,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:07:19,830 INFO L93 Difference]: Finished difference Result 14135 states and 19552 transitions. [2021-11-19 14:07:19,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-19 14:07:19,831 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 6 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) Word has length 266 [2021-11-19 14:07:19,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:07:19,859 INFO L225 Difference]: With dead ends: 14135 [2021-11-19 14:07:19,860 INFO L226 Difference]: Without dead ends: 8692 [2021-11-19 14:07:19,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 517 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=149, Invalid=721, Unknown=0, NotChecked=0, Total=870 [2021-11-19 14:07:19,878 INFO L933 BasicCegarLoop]: 5118 mSDtfsCounter, 4078 mSDsluCounter, 55627 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 1479 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4358 SdHoareTripleChecker+Valid, 60745 SdHoareTripleChecker+Invalid, 2213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1479 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:07:19,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4358 Valid, 60745 Invalid, 2213 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1479 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2021-11-19 14:07:19,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8692 states. [2021-11-19 14:07:20,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8692 to 5476. [2021-11-19 14:07:20,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5476 states, 3686 states have (on average 1.2243624525230603) internal successors, (4513), 3748 states have internal predecessors, (4513), 1417 states have call successors, (1417), 366 states have call predecessors, (1417), 368 states have return successors, (1455), 1412 states have call predecessors, (1455), 1415 states have call successors, (1455) [2021-11-19 14:07:20,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5476 states to 5476 states and 7385 transitions. [2021-11-19 14:07:20,570 INFO L78 Accepts]: Start accepts. Automaton has 5476 states and 7385 transitions. Word has length 266 [2021-11-19 14:07:20,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:07:20,571 INFO L470 AbstractCegarLoop]: Abstraction has 5476 states and 7385 transitions. [2021-11-19 14:07:20,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 6 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2021-11-19 14:07:20,571 INFO L276 IsEmpty]: Start isEmpty. Operand 5476 states and 7385 transitions. [2021-11-19 14:07:20,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-11-19 14:07:20,574 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:07:20,574 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:07:20,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:20,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:07:20,775 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:07:20,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:07:20,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1179093111, now seen corresponding path program 1 times [2021-11-19 14:07:20,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:07:20,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1115539818] [2021-11-19 14:07:20,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:20,777 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:07:20,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:07:20,778 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:07:20,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2021-11-19 14:07:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:23,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 2242 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:07:23,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:24,757 INFO L134 CoverageAnalysis]: Checked inductivity of 587 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 587 trivial. 0 not checked. [2021-11-19 14:07:24,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:25,550 INFO L134 CoverageAnalysis]: Checked inductivity of 587 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 587 trivial. 0 not checked. [2021-11-19 14:07:25,550 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:07:25,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1115539818] [2021-11-19 14:07:25,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1115539818] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:07:25,551 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:07:25,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-19 14:07:25,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309436421] [2021-11-19 14:07:25,551 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:07:25,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:07:25,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:07:25,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:07:25,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:07:25,553 INFO L87 Difference]: Start difference. First operand 5476 states and 7385 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-19 14:07:27,701 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:07:28,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:07:28,446 INFO L93 Difference]: Finished difference Result 5478 states and 7386 transitions. [2021-11-19 14:07:28,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:07:28,447 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 282 [2021-11-19 14:07:28,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:07:28,462 INFO L225 Difference]: With dead ends: 5478 [2021-11-19 14:07:28,462 INFO L226 Difference]: Without dead ends: 5373 [2021-11-19 14:07:28,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 557 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:07:28,466 INFO L933 BasicCegarLoop]: 3585 mSDtfsCounter, 100 mSDsluCounter, 14204 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 17789 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:07:28,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 17789 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 14:07:28,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5373 states. [2021-11-19 14:07:29,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5373 to 5373. [2021-11-19 14:07:29,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5373 states, 3620 states have (on average 1.2240331491712708) internal successors, (4431), 3681 states have internal predecessors, (4431), 1384 states have call successors, (1384), 362 states have call predecessors, (1384), 364 states have return successors, (1421), 1380 states have call predecessors, (1421), 1384 states have call successors, (1421) [2021-11-19 14:07:29,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5373 states to 5373 states and 7236 transitions. [2021-11-19 14:07:29,023 INFO L78 Accepts]: Start accepts. Automaton has 5373 states and 7236 transitions. Word has length 282 [2021-11-19 14:07:29,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:07:29,023 INFO L470 AbstractCegarLoop]: Abstraction has 5373 states and 7236 transitions. [2021-11-19 14:07:29,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-19 14:07:29,023 INFO L276 IsEmpty]: Start isEmpty. Operand 5373 states and 7236 transitions. [2021-11-19 14:07:29,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-11-19 14:07:29,026 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:07:29,026 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:07:29,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:29,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:07:29,227 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:07:29,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:07:29,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1653482936, now seen corresponding path program 1 times [2021-11-19 14:07:29,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:07:29,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1144118817] [2021-11-19 14:07:29,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:29,230 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:07:29,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:07:29,230 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:07:29,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2021-11-19 14:07:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:32,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 2411 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:07:32,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:33,360 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-11-19 14:07:33,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:33,915 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-11-19 14:07:33,915 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:07:33,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1144118817] [2021-11-19 14:07:33,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1144118817] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:07:33,915 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:07:33,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 7 [2021-11-19 14:07:33,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310374083] [2021-11-19 14:07:33,916 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:07:33,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:07:33,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:07:33,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:07:33,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:07:33,917 INFO L87 Difference]: Start difference. First operand 5373 states and 7236 transitions. Second operand has 7 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 14:07:34,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:07:34,674 INFO L93 Difference]: Finished difference Result 5445 states and 7335 transitions. [2021-11-19 14:07:34,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:07:34,675 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 274 [2021-11-19 14:07:34,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:07:34,693 INFO L225 Difference]: With dead ends: 5445 [2021-11-19 14:07:34,693 INFO L226 Difference]: Without dead ends: 5443 [2021-11-19 14:07:34,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 541 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:07:34,695 INFO L933 BasicCegarLoop]: 3501 mSDtfsCounter, 95 mSDsluCounter, 17428 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 20929 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:07:34,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 20929 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:07:34,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5443 states. [2021-11-19 14:07:35,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5443 to 5401. [2021-11-19 14:07:35,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5401 states, 3644 states have (on average 1.223655323819978) internal successors, (4459), 3705 states have internal predecessors, (4459), 1386 states have call successors, (1386), 364 states have call predecessors, (1386), 366 states have return successors, (1423), 1382 states have call predecessors, (1423), 1386 states have call successors, (1423) [2021-11-19 14:07:35,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5401 states to 5401 states and 7268 transitions. [2021-11-19 14:07:35,265 INFO L78 Accepts]: Start accepts. Automaton has 5401 states and 7268 transitions. Word has length 274 [2021-11-19 14:07:35,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:07:35,266 INFO L470 AbstractCegarLoop]: Abstraction has 5401 states and 7268 transitions. [2021-11-19 14:07:35,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 14:07:35,266 INFO L276 IsEmpty]: Start isEmpty. Operand 5401 states and 7268 transitions. [2021-11-19 14:07:35,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-11-19 14:07:35,271 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:07:35,271 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:07:35,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:35,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:07:35,487 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:07:35,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:07:35,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1985996034, now seen corresponding path program 1 times [2021-11-19 14:07:35,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:07:35,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292664454] [2021-11-19 14:07:35,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:35,491 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:07:35,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:07:35,492 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:07:35,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-11-19 14:07:38,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:39,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 2418 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:07:39,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:42,048 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-11-19 14:07:42,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:43,426 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-11-19 14:07:43,426 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:07:43,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292664454] [2021-11-19 14:07:43,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1292664454] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:07:43,426 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:07:43,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-19 14:07:43,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124370510] [2021-11-19 14:07:43,427 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:07:43,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:07:43,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:07:43,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:07:43,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:07:43,428 INFO L87 Difference]: Start difference. First operand 5401 states and 7268 transitions. Second operand has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 3 states have call successors, (72), 3 states have call predecessors, (72), 2 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2021-11-19 14:07:46,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:07:46,164 INFO L93 Difference]: Finished difference Result 10773 states and 14512 transitions. [2021-11-19 14:07:46,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:07:46,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 3 states have call successors, (72), 3 states have call predecessors, (72), 2 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) Word has length 278 [2021-11-19 14:07:46,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:07:46,183 INFO L225 Difference]: With dead ends: 10773 [2021-11-19 14:07:46,183 INFO L226 Difference]: Without dead ends: 5391 [2021-11-19 14:07:46,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 552 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:07:46,200 INFO L933 BasicCegarLoop]: 3466 mSDtfsCounter, 5308 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5308 SdHoareTripleChecker+Valid, 3466 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1342 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:07:46,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5308 Valid, 3466 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1342 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-19 14:07:46,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5391 states. [2021-11-19 14:07:46,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5391 to 5391. [2021-11-19 14:07:46,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5391 states, 3635 states have (on average 1.2220082530949106) internal successors, (4442), 3695 states have internal predecessors, (4442), 1386 states have call successors, (1386), 364 states have call predecessors, (1386), 366 states have return successors, (1423), 1382 states have call predecessors, (1423), 1386 states have call successors, (1423) [2021-11-19 14:07:46,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5391 states to 5391 states and 7251 transitions. [2021-11-19 14:07:46,925 INFO L78 Accepts]: Start accepts. Automaton has 5391 states and 7251 transitions. Word has length 278 [2021-11-19 14:07:46,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:07:46,925 INFO L470 AbstractCegarLoop]: Abstraction has 5391 states and 7251 transitions. [2021-11-19 14:07:46,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 3 states have call successors, (72), 3 states have call predecessors, (72), 2 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2021-11-19 14:07:46,926 INFO L276 IsEmpty]: Start isEmpty. Operand 5391 states and 7251 transitions. [2021-11-19 14:07:46,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-11-19 14:07:46,930 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:07:46,930 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:07:46,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (47)] Ended with exit code 0 [2021-11-19 14:07:47,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:07:47,131 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:07:47,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:07:47,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1912866658, now seen corresponding path program 1 times [2021-11-19 14:07:47,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:07:47,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784023476] [2021-11-19 14:07:47,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:47,133 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:07:47,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:07:47,134 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:07:47,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2021-11-19 14:07:50,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:50,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 2498 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 14:07:50,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:52,029 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2021-11-19 14:07:52,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:53,735 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2021-11-19 14:07:53,736 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:07:53,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [784023476] [2021-11-19 14:07:53,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [784023476] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:07:53,736 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:07:53,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-11-19 14:07:53,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4445293] [2021-11-19 14:07:53,737 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:07:53,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 14:07:53,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:07:53,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 14:07:53,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:07:53,738 INFO L87 Difference]: Start difference. First operand 5391 states and 7251 transitions. Second operand has 14 states, 14 states have (on average 10.428571428571429) internal successors, (146), 12 states have internal predecessors, (146), 2 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (40), 4 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-19 14:07:55,813 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:07:57,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:07:57,013 INFO L93 Difference]: Finished difference Result 10817 states and 14560 transitions. [2021-11-19 14:07:57,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:07:57,015 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.428571428571429) internal successors, (146), 12 states have internal predecessors, (146), 2 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (40), 4 states have call predecessors, (40), 2 states have call successors, (40) Word has length 305 [2021-11-19 14:07:57,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:07:57,040 INFO L225 Difference]: With dead ends: 10817 [2021-11-19 14:07:57,041 INFO L226 Difference]: Without dead ends: 5445 [2021-11-19 14:07:57,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 596 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2021-11-19 14:07:57,058 INFO L933 BasicCegarLoop]: 3494 mSDtfsCounter, 48 mSDsluCounter, 38358 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 41852 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:07:57,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 41852 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 14:07:57,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2021-11-19 14:07:57,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5405. [2021-11-19 14:07:57,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5405 states, 3647 states have (on average 1.2212777625445572) internal successors, (4454), 3707 states have internal predecessors, (4454), 1386 states have call successors, (1386), 364 states have call predecessors, (1386), 368 states have return successors, (1427), 1384 states have call predecessors, (1427), 1386 states have call successors, (1427) [2021-11-19 14:07:57,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5405 states to 5405 states and 7267 transitions. [2021-11-19 14:07:57,822 INFO L78 Accepts]: Start accepts. Automaton has 5405 states and 7267 transitions. Word has length 305 [2021-11-19 14:07:57,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:07:57,823 INFO L470 AbstractCegarLoop]: Abstraction has 5405 states and 7267 transitions. [2021-11-19 14:07:57,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.428571428571429) internal successors, (146), 12 states have internal predecessors, (146), 2 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (40), 4 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-19 14:07:57,823 INFO L276 IsEmpty]: Start isEmpty. Operand 5405 states and 7267 transitions. [2021-11-19 14:07:57,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-11-19 14:07:57,828 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:07:57,828 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:07:57,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:58,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:07:58,029 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:07:58,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:07:58,029 INFO L85 PathProgramCache]: Analyzing trace with hash -365667355, now seen corresponding path program 1 times [2021-11-19 14:07:58,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:07:58,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [957033082] [2021-11-19 14:07:58,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:58,031 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:07:58,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:07:58,032 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:07:58,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2021-11-19 14:08:01,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:08:01,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 2542 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:08:01,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:08:02,437 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2021-11-19 14:08:02,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:08:03,057 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2021-11-19 14:08:03,057 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:08:03,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [957033082] [2021-11-19 14:08:03,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [957033082] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:08:03,057 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:08:03,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 14:08:03,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253303838] [2021-11-19 14:08:03,058 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:08:03,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:08:03,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:08:03,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:08:03,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:08:03,060 INFO L87 Difference]: Start difference. First operand 5405 states and 7267 transitions. Second operand has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2021-11-19 14:08:03,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:08:03,672 INFO L93 Difference]: Finished difference Result 5405 states and 7267 transitions. [2021-11-19 14:08:03,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:08:03,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 326 [2021-11-19 14:08:03,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:08:03,685 INFO L225 Difference]: With dead ends: 5405 [2021-11-19 14:08:03,686 INFO L226 Difference]: Without dead ends: 5403 [2021-11-19 14:08:03,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 651 GetRequests, 646 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:08:03,688 INFO L933 BasicCegarLoop]: 3463 mSDtfsCounter, 13 mSDsluCounter, 13828 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 17291 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:08:03,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 17291 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:08:03,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5403 states. [2021-11-19 14:08:04,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5403 to 5403. [2021-11-19 14:08:04,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5403 states, 3646 states have (on average 1.2207899067471202) internal successors, (4451), 3705 states have internal predecessors, (4451), 1386 states have call successors, (1386), 364 states have call predecessors, (1386), 368 states have return successors, (1427), 1384 states have call predecessors, (1427), 1386 states have call successors, (1427) [2021-11-19 14:08:04,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5403 states to 5403 states and 7264 transitions. [2021-11-19 14:08:04,294 INFO L78 Accepts]: Start accepts. Automaton has 5403 states and 7264 transitions. Word has length 326 [2021-11-19 14:08:04,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:08:04,295 INFO L470 AbstractCegarLoop]: Abstraction has 5403 states and 7264 transitions. [2021-11-19 14:08:04,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2021-11-19 14:08:04,295 INFO L276 IsEmpty]: Start isEmpty. Operand 5403 states and 7264 transitions. [2021-11-19 14:08:04,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2021-11-19 14:08:04,303 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:08:04,303 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:08:04,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (49)] Ended with exit code 0 [2021-11-19 14:08:04,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:08:04,504 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:08:04,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:08:04,504 INFO L85 PathProgramCache]: Analyzing trace with hash -758929120, now seen corresponding path program 1 times [2021-11-19 14:08:04,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:08:04,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1346088493] [2021-11-19 14:08:04,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:08:04,508 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:08:04,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:08:04,509 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:08:04,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2021-11-19 14:08:08,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:08:08,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 2995 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:08:08,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:08:10,757 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-19 14:08:10,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:08:12,044 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2021-11-19 14:08:12,044 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:08:12,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1346088493] [2021-11-19 14:08:12,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1346088493] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:08:12,045 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:08:12,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 14:08:12,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255972581] [2021-11-19 14:08:12,045 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:08:12,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:08:12,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:08:12,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:08:12,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:08:12,047 INFO L87 Difference]: Start difference. First operand 5403 states and 7264 transitions. Second operand has 8 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 2 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2021-11-19 14:08:13,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:08:13,604 INFO L93 Difference]: Finished difference Result 11150 states and 15035 transitions. [2021-11-19 14:08:13,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:08:13,604 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 2 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) Word has length 373 [2021-11-19 14:08:13,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:08:13,630 INFO L225 Difference]: With dead ends: 11150 [2021-11-19 14:08:13,631 INFO L226 Difference]: Without dead ends: 5766 [2021-11-19 14:08:13,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 748 GetRequests, 740 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:08:13,647 INFO L933 BasicCegarLoop]: 3748 mSDtfsCounter, 817 mSDsluCounter, 14650 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 308 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 18398 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:08:13,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [855 Valid, 18398 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [308 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 14:08:13,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5766 states. [2021-11-19 14:08:14,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5766 to 5406. [2021-11-19 14:08:14,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5406 states, 3649 states have (on average 1.2206083858591394) internal successors, (4454), 3708 states have internal predecessors, (4454), 1386 states have call successors, (1386), 364 states have call predecessors, (1386), 368 states have return successors, (1427), 1384 states have call predecessors, (1427), 1386 states have call successors, (1427) [2021-11-19 14:08:14,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5406 states to 5406 states and 7267 transitions. [2021-11-19 14:08:14,296 INFO L78 Accepts]: Start accepts. Automaton has 5406 states and 7267 transitions. Word has length 373 [2021-11-19 14:08:14,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:08:14,296 INFO L470 AbstractCegarLoop]: Abstraction has 5406 states and 7267 transitions. [2021-11-19 14:08:14,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 2 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2021-11-19 14:08:14,297 INFO L276 IsEmpty]: Start isEmpty. Operand 5406 states and 7267 transitions. [2021-11-19 14:08:14,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2021-11-19 14:08:14,305 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:08:14,305 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:08:14,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2021-11-19 14:08:14,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:08:14,506 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:08:14,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:08:14,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1892753186, now seen corresponding path program 1 times [2021-11-19 14:08:14,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:08:14,509 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [663832577] [2021-11-19 14:08:14,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:08:14,509 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:08:14,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:08:14,510 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:08:14,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2021-11-19 14:08:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:08:19,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 2998 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:08:19,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:08:21,036 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2021-11-19 14:08:21,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:08:22,297 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2021-11-19 14:08:22,297 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:08:22,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [663832577] [2021-11-19 14:08:22,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [663832577] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:08:22,298 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:08:22,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 14:08:22,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747329343] [2021-11-19 14:08:22,298 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:08:22,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:08:22,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:08:22,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:08:22,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:08:22,300 INFO L87 Difference]: Start difference. First operand 5406 states and 7267 transitions. Second operand has 8 states, 8 states have (on average 32.625) internal successors, (261), 8 states have internal predecessors, (261), 2 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) [2021-11-19 14:08:26,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:08:26,039 INFO L93 Difference]: Finished difference Result 11173 states and 15065 transitions. [2021-11-19 14:08:26,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:08:26,040 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 32.625) internal successors, (261), 8 states have internal predecessors, (261), 2 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) Word has length 373 [2021-11-19 14:08:26,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:08:26,063 INFO L225 Difference]: With dead ends: 11173 [2021-11-19 14:08:26,064 INFO L226 Difference]: Without dead ends: 5786 [2021-11-19 14:08:26,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 748 GetRequests, 740 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:08:26,079 INFO L933 BasicCegarLoop]: 3733 mSDtfsCounter, 784 mSDsluCounter, 18273 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 22006 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:08:26,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [824 Valid, 22006 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-19 14:08:26,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5786 states. [2021-11-19 14:08:26,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5786 to 5409. [2021-11-19 14:08:26,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5409 states, 3652 states have (on average 1.2204271631982475) internal successors, (4457), 3711 states have internal predecessors, (4457), 1386 states have call successors, (1386), 364 states have call predecessors, (1386), 368 states have return successors, (1427), 1384 states have call predecessors, (1427), 1386 states have call successors, (1427) [2021-11-19 14:08:26,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5409 states to 5409 states and 7270 transitions. [2021-11-19 14:08:26,646 INFO L78 Accepts]: Start accepts. Automaton has 5409 states and 7270 transitions. Word has length 373 [2021-11-19 14:08:26,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:08:26,646 INFO L470 AbstractCegarLoop]: Abstraction has 5409 states and 7270 transitions. [2021-11-19 14:08:26,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 32.625) internal successors, (261), 8 states have internal predecessors, (261), 2 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) [2021-11-19 14:08:26,646 INFO L276 IsEmpty]: Start isEmpty. Operand 5409 states and 7270 transitions. [2021-11-19 14:08:26,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-11-19 14:08:26,654 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:08:26,655 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:08:26,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (51)] Ended with exit code 0 [2021-11-19 14:08:26,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:08:26,856 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:08:26,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:08:26,857 INFO L85 PathProgramCache]: Analyzing trace with hash -866031375, now seen corresponding path program 1 times [2021-11-19 14:08:26,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:08:26,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1257195242] [2021-11-19 14:08:26,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:08:26,859 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:08:26,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:08:26,860 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:08:26,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2021-11-19 14:08:31,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:08:31,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 3045 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-19 14:08:31,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:08:33,744 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2021-11-19 14:08:33,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:08:35,304 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2021-11-19 14:08:35,304 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:08:35,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1257195242] [2021-11-19 14:08:35,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1257195242] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:08:35,305 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:08:35,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-19 14:08:35,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555900594] [2021-11-19 14:08:35,305 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:08:35,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 14:08:35,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:08:35,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 14:08:35,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:08:35,307 INFO L87 Difference]: Start difference. First operand 5409 states and 7270 transitions. Second operand has 10 states, 10 states have (on average 25.9) internal successors, (259), 8 states have internal predecessors, (259), 2 states have call successors, (77), 2 states have call predecessors, (77), 4 states have return successors, (78), 4 states have call predecessors, (78), 2 states have call successors, (78) [2021-11-19 14:08:38,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:08:38,181 INFO L93 Difference]: Finished difference Result 10978 states and 14772 transitions. [2021-11-19 14:08:38,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:08:38,181 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 25.9) internal successors, (259), 8 states have internal predecessors, (259), 2 states have call successors, (77), 2 states have call predecessors, (77), 4 states have return successors, (78), 4 states have call predecessors, (78), 2 states have call successors, (78) Word has length 394 [2021-11-19 14:08:38,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:08:38,199 INFO L225 Difference]: With dead ends: 10978 [2021-11-19 14:08:38,199 INFO L226 Difference]: Without dead ends: 5588 [2021-11-19 14:08:38,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 787 GetRequests, 778 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:08:38,213 INFO L933 BasicCegarLoop]: 3683 mSDtfsCounter, 256 mSDsluCounter, 18231 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 21914 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:08:38,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [304 Valid, 21914 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-19 14:08:38,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5588 states. [2021-11-19 14:08:38,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5588 to 5414. [2021-11-19 14:08:38,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 3656 states have (on average 1.2201859956236323) internal successors, (4461), 3715 states have internal predecessors, (4461), 1386 states have call successors, (1386), 364 states have call predecessors, (1386), 369 states have return successors, (1430), 1385 states have call predecessors, (1430), 1386 states have call successors, (1430) [2021-11-19 14:08:38,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 7277 transitions. [2021-11-19 14:08:38,851 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 7277 transitions. Word has length 394 [2021-11-19 14:08:38,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:08:38,851 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 7277 transitions. [2021-11-19 14:08:38,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 25.9) internal successors, (259), 8 states have internal predecessors, (259), 2 states have call successors, (77), 2 states have call predecessors, (77), 4 states have return successors, (78), 4 states have call predecessors, (78), 2 states have call successors, (78) [2021-11-19 14:08:38,851 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 7277 transitions. [2021-11-19 14:08:38,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2021-11-19 14:08:38,859 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:08:38,860 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:08:38,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2021-11-19 14:08:39,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:08:39,061 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:08:39,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:08:39,062 INFO L85 PathProgramCache]: Analyzing trace with hash 2079259959, now seen corresponding path program 1 times [2021-11-19 14:08:39,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:08:39,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1517481694] [2021-11-19 14:08:39,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:08:39,065 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:08:39,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:08:39,066 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:08:39,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2021-11-19 14:08:45,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:08:45,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 3077 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:08:45,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:08:46,629 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2021-11-19 14:08:46,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:08:47,527 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-11-19 14:08:47,527 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:08:47,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1517481694] [2021-11-19 14:08:47,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1517481694] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:08:47,527 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:08:47,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 14:08:47,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017903041] [2021-11-19 14:08:47,528 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:08:47,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:08:47,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:08:47,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:08:47,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:08:47,529 INFO L87 Difference]: Start difference. First operand 5414 states and 7277 transitions. Second operand has 4 states, 4 states have (on average 62.5) internal successors, (250), 4 states have internal predecessors, (250), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2021-11-19 14:08:49,600 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:51,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:08:51,188 INFO L93 Difference]: Finished difference Result 11029 states and 14845 transitions. [2021-11-19 14:08:51,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:08:51,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 4 states have internal predecessors, (250), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) Word has length 410 [2021-11-19 14:08:51,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:08:51,207 INFO L225 Difference]: With dead ends: 11029 [2021-11-19 14:08:51,207 INFO L226 Difference]: Without dead ends: 5634 [2021-11-19 14:08:51,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 820 GetRequests, 817 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:08:51,221 INFO L933 BasicCegarLoop]: 3748 mSDtfsCounter, 1694 mSDsluCounter, 5214 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 586 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1697 SdHoareTripleChecker+Valid, 8962 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 586 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:08:51,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1697 Valid, 8962 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [586 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2021-11-19 14:08:51,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5634 states. [2021-11-19 14:08:51,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5634 to 5414. [2021-11-19 14:08:51,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 3656 states have (on average 1.2199124726477024) internal successors, (4460), 3715 states have internal predecessors, (4460), 1386 states have call successors, (1386), 364 states have call predecessors, (1386), 369 states have return successors, (1430), 1385 states have call predecessors, (1430), 1386 states have call successors, (1430) [2021-11-19 14:08:51,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 7276 transitions. [2021-11-19 14:08:51,928 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 7276 transitions. Word has length 410 [2021-11-19 14:08:51,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:08:51,929 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 7276 transitions. [2021-11-19 14:08:51,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 4 states have internal predecessors, (250), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2021-11-19 14:08:51,929 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 7276 transitions. [2021-11-19 14:08:51,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2021-11-19 14:08:51,937 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:08:51,937 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:08:52,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (53)] Ended with exit code 0 [2021-11-19 14:08:52,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:08:52,138 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:08:52,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:08:52,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1111305661, now seen corresponding path program 1 times [2021-11-19 14:08:52,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:08:52,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1934507738] [2021-11-19 14:08:52,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:08:52,141 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:08:52,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:08:52,142 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:08:52,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2021-11-19 14:08:58,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:08:59,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 3160 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:08:59,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:09:00,176 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2021-11-19 14:09:00,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:09:01,138 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2021-11-19 14:09:01,138 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:09:01,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1934507738] [2021-11-19 14:09:01,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1934507738] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:09:01,138 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:09:01,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:09:01,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984984193] [2021-11-19 14:09:01,139 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:09:01,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:09:01,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:09:01,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:09:01,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:09:01,140 INFO L87 Difference]: Start difference. First operand 5414 states and 7276 transitions. Second operand has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) [2021-11-19 14:09:01,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:09:01,903 INFO L93 Difference]: Finished difference Result 10841 states and 14620 transitions. [2021-11-19 14:09:01,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:09:01,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) Word has length 437 [2021-11-19 14:09:01,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:09:01,923 INFO L225 Difference]: With dead ends: 10841 [2021-11-19 14:09:01,923 INFO L226 Difference]: Without dead ends: 5446 [2021-11-19 14:09:01,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 872 GetRequests, 870 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:09:01,935 INFO L933 BasicCegarLoop]: 3463 mSDtfsCounter, 24 mSDsluCounter, 6884 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 10347 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:09:01,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 10347 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:09:01,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5446 states. [2021-11-19 14:09:02,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5446 to 5436. [2021-11-19 14:09:02,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 3674 states have (on average 1.2193794229722374) internal successors, (4480), 3733 states have internal predecessors, (4480), 1390 states have call successors, (1390), 364 states have call predecessors, (1390), 369 states have return successors, (1434), 1389 states have call predecessors, (1434), 1390 states have call successors, (1434) [2021-11-19 14:09:02,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 7304 transitions. [2021-11-19 14:09:02,587 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 7304 transitions. Word has length 437 [2021-11-19 14:09:02,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:09:02,587 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 7304 transitions. [2021-11-19 14:09:02,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) [2021-11-19 14:09:02,588 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 7304 transitions. [2021-11-19 14:09:02,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2021-11-19 14:09:02,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:09:02,596 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:09:02,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (54)] Forceful destruction successful, exit code 0 [2021-11-19 14:09:02,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:09:02,797 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:09:02,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:09:02,798 INFO L85 PathProgramCache]: Analyzing trace with hash -410404092, now seen corresponding path program 1 times [2021-11-19 14:09:02,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:09:02,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [382673546] [2021-11-19 14:09:02,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:09:02,801 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:09:02,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:09:02,801 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:09:02,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2021-11-19 14:09:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:09:09,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 3173 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:09:09,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:09:10,892 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2021-11-19 14:09:10,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:09:12,054 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-11-19 14:09:12,054 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:09:12,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [382673546] [2021-11-19 14:09:12,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [382673546] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:09:12,054 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:09:12,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-19 14:09:12,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401584408] [2021-11-19 14:09:12,055 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:09:12,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:09:12,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:09:12,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:09:12,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:09:12,056 INFO L87 Difference]: Start difference. First operand 5436 states and 7304 transitions. Second operand has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 5 states have internal predecessors, (238), 2 states have call successors, (75), 2 states have call predecessors, (75), 3 states have return successors, (75), 3 states have call predecessors, (75), 2 states have call successors, (75) [2021-11-19 14:09:13,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:09:13,747 INFO L93 Difference]: Finished difference Result 12519 states and 17077 transitions. [2021-11-19 14:09:13,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:09:13,749 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 5 states have internal predecessors, (238), 2 states have call successors, (75), 2 states have call predecessors, (75), 3 states have return successors, (75), 3 states have call predecessors, (75), 2 states have call successors, (75) Word has length 444 [2021-11-19 14:09:13,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:09:13,770 INFO L225 Difference]: With dead ends: 12519 [2021-11-19 14:09:13,770 INFO L226 Difference]: Without dead ends: 7102 [2021-11-19 14:09:13,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 887 GetRequests, 881 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:09:13,783 INFO L933 BasicCegarLoop]: 4860 mSDtfsCounter, 853 mSDsluCounter, 18286 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 23146 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:09:13,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1150 Valid, 23146 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 14:09:13,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7102 states. [2021-11-19 14:09:14,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7102 to 5441. [2021-11-19 14:09:14,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5441 states, 3678 states have (on average 1.2191408374116368) internal successors, (4484), 3737 states have internal predecessors, (4484), 1390 states have call successors, (1390), 364 states have call predecessors, (1390), 370 states have return successors, (1437), 1390 states have call predecessors, (1437), 1390 states have call successors, (1437) [2021-11-19 14:09:14,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5441 states to 5441 states and 7311 transitions. [2021-11-19 14:09:14,478 INFO L78 Accepts]: Start accepts. Automaton has 5441 states and 7311 transitions. Word has length 444 [2021-11-19 14:09:14,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:09:14,479 INFO L470 AbstractCegarLoop]: Abstraction has 5441 states and 7311 transitions. [2021-11-19 14:09:14,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 5 states have internal predecessors, (238), 2 states have call successors, (75), 2 states have call predecessors, (75), 3 states have return successors, (75), 3 states have call predecessors, (75), 2 states have call successors, (75) [2021-11-19 14:09:14,480 INFO L276 IsEmpty]: Start isEmpty. Operand 5441 states and 7311 transitions. [2021-11-19 14:09:14,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2021-11-19 14:09:14,490 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:09:14,490 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:09:14,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (55)] Forceful destruction successful, exit code 0 [2021-11-19 14:09:14,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:09:14,691 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:09:14,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:09:14,691 INFO L85 PathProgramCache]: Analyzing trace with hash -615720166, now seen corresponding path program 1 times [2021-11-19 14:09:14,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:09:14,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095850140] [2021-11-19 14:09:14,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:09:14,694 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:09:14,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:09:14,695 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:09:14,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2021-11-19 14:09:21,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:09:21,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 3182 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:09:21,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:09:22,687 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2021-11-19 14:09:22,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:09:23,664 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-11-19 14:09:23,664 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:09:23,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2095850140] [2021-11-19 14:09:23,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2095850140] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:09:23,665 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:09:23,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:09:23,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661845214] [2021-11-19 14:09:23,665 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:09:23,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:09:23,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:09:23,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:09:23,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:09:23,666 INFO L87 Difference]: Start difference. First operand 5441 states and 7311 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) [2021-11-19 14:09:24,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:09:24,349 INFO L93 Difference]: Finished difference Result 10871 states and 14615 transitions. [2021-11-19 14:09:24,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:09:24,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) Word has length 447 [2021-11-19 14:09:24,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:09:24,365 INFO L225 Difference]: With dead ends: 10871 [2021-11-19 14:09:24,365 INFO L226 Difference]: Without dead ends: 5449 [2021-11-19 14:09:24,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 892 GetRequests, 891 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:09:24,379 INFO L933 BasicCegarLoop]: 3463 mSDtfsCounter, 3 mSDsluCounter, 3459 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6922 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:09:24,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 6922 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:09:24,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2021-11-19 14:09:25,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5443. [2021-11-19 14:09:25,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 3680 states have (on average 1.2190217391304348) internal successors, (4486), 3739 states have internal predecessors, (4486), 1390 states have call successors, (1390), 364 states have call predecessors, (1390), 370 states have return successors, (1437), 1390 states have call predecessors, (1437), 1390 states have call successors, (1437) [2021-11-19 14:09:25,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 7313 transitions. [2021-11-19 14:09:25,059 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 7313 transitions. Word has length 447 [2021-11-19 14:09:25,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:09:25,060 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 7313 transitions. [2021-11-19 14:09:25,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) [2021-11-19 14:09:25,060 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 7313 transitions. [2021-11-19 14:09:25,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2021-11-19 14:09:25,066 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:09:25,066 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:09:25,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (56)] Forceful destruction successful, exit code 0 [2021-11-19 14:09:25,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:09:25,267 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:09:25,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:09:25,268 INFO L85 PathProgramCache]: Analyzing trace with hash 2031884188, now seen corresponding path program 1 times [2021-11-19 14:09:25,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:09:25,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314455323] [2021-11-19 14:09:25,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:09:25,270 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:09:25,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:09:25,271 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:09:25,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2021-11-19 14:09:31,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:09:32,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 3182 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:09:32,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:09:33,343 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2021-11-19 14:09:33,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:09:34,279 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-11-19 14:09:34,279 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:09:34,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314455323] [2021-11-19 14:09:34,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [314455323] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:09:34,280 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:09:34,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:09:34,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772873696] [2021-11-19 14:09:34,280 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:09:34,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:09:34,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:09:34,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:09:34,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:09:34,281 INFO L87 Difference]: Start difference. First operand 5443 states and 7313 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) [2021-11-19 14:09:34,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:09:34,970 INFO L93 Difference]: Finished difference Result 10875 states and 14616 transitions. [2021-11-19 14:09:34,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:09:34,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) Word has length 447 [2021-11-19 14:09:34,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:09:34,991 INFO L225 Difference]: With dead ends: 10875 [2021-11-19 14:09:34,991 INFO L226 Difference]: Without dead ends: 5451 [2021-11-19 14:09:35,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 892 GetRequests, 891 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:09:35,006 INFO L933 BasicCegarLoop]: 3468 mSDtfsCounter, 3 mSDsluCounter, 3462 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6930 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:09:35,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 6930 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:09:35,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5451 states. [2021-11-19 14:09:35,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5451 to 5445. [2021-11-19 14:09:35,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 3682 states have (on average 1.2189027702335686) internal successors, (4488), 3741 states have internal predecessors, (4488), 1390 states have call successors, (1390), 364 states have call predecessors, (1390), 370 states have return successors, (1437), 1390 states have call predecessors, (1437), 1390 states have call successors, (1437) [2021-11-19 14:09:35,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 7315 transitions. [2021-11-19 14:09:35,701 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 7315 transitions. Word has length 447 [2021-11-19 14:09:35,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:09:35,702 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 7315 transitions. [2021-11-19 14:09:35,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) [2021-11-19 14:09:35,702 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 7315 transitions. [2021-11-19 14:09:35,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2021-11-19 14:09:35,713 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:09:35,713 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:09:35,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (57)] Forceful destruction successful, exit code 0 [2021-11-19 14:09:35,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:09:35,920 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:09:35,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:09:35,920 INFO L85 PathProgramCache]: Analyzing trace with hash 58718810, now seen corresponding path program 1 times [2021-11-19 14:09:35,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:09:35,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [911875552] [2021-11-19 14:09:35,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:09:35,923 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:09:35,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:09:35,924 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:09:35,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2021-11-19 14:09:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:09:42,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 3182 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:09:42,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:09:44,091 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2021-11-19 14:09:44,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:09:45,000 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-11-19 14:09:45,000 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:09:45,001 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [911875552] [2021-11-19 14:09:45,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [911875552] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:09:45,001 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:09:45,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 14:09:45,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056047874] [2021-11-19 14:09:45,001 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:09:45,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:09:45,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:09:45,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:09:45,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:09:45,002 INFO L87 Difference]: Start difference. First operand 5445 states and 7315 transitions. Second operand has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) [2021-11-19 14:09:47,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:09:47,050 INFO L93 Difference]: Finished difference Result 14183 states and 19564 transitions. [2021-11-19 14:09:47,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:09:47,051 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) Word has length 447 [2021-11-19 14:09:47,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:09:47,077 INFO L225 Difference]: With dead ends: 14183 [2021-11-19 14:09:47,077 INFO L226 Difference]: Without dead ends: 8757 [2021-11-19 14:09:47,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 894 GetRequests, 891 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:09:47,091 INFO L933 BasicCegarLoop]: 4283 mSDtfsCounter, 2502 mSDsluCounter, 8122 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 574 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2798 SdHoareTripleChecker+Valid, 12405 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 574 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:09:47,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2798 Valid, 12405 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [574 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-19 14:09:47,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8757 states. [2021-11-19 14:09:47,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8757 to 5447. [2021-11-19 14:09:47,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 3684 states have (on average 1.218783930510315) internal successors, (4490), 3743 states have internal predecessors, (4490), 1390 states have call successors, (1390), 364 states have call predecessors, (1390), 370 states have return successors, (1437), 1390 states have call predecessors, (1437), 1390 states have call successors, (1437) [2021-11-19 14:09:47,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 7317 transitions. [2021-11-19 14:09:47,838 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 7317 transitions. Word has length 447 [2021-11-19 14:09:47,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:09:47,838 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 7317 transitions. [2021-11-19 14:09:47,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) [2021-11-19 14:09:47,839 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 7317 transitions. [2021-11-19 14:09:47,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2021-11-19 14:09:47,845 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:09:47,845 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:09:47,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (58)] Forceful destruction successful, exit code 0 [2021-11-19 14:09:48,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:09:48,046 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:09:48,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:09:48,047 INFO L85 PathProgramCache]: Analyzing trace with hash -697354775, now seen corresponding path program 1 times [2021-11-19 14:09:48,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:09:48,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [716731890] [2021-11-19 14:09:48,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:09:48,050 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:09:48,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:09:48,050 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:09:48,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2021-11-19 14:09:54,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:09:55,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 3201 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:09:55,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:09:56,219 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2021-11-19 14:09:56,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:09:57,421 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2021-11-19 14:09:57,421 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:09:57,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [716731890] [2021-11-19 14:09:57,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [716731890] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:09:57,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:09:57,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2021-11-19 14:09:57,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244687064] [2021-11-19 14:09:57,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:09:57,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:09:57,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:09:57,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:09:57,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:09:57,423 INFO L87 Difference]: Start difference. First operand 5447 states and 7317 transitions. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 2 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2021-11-19 14:09:59,666 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:00,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:10:00,522 INFO L93 Difference]: Finished difference Result 10883 states and 14648 transitions. [2021-11-19 14:10:00,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:10:00,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 2 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 454 [2021-11-19 14:10:00,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:10:00,540 INFO L225 Difference]: With dead ends: 10883 [2021-11-19 14:10:00,540 INFO L226 Difference]: Without dead ends: 5455 [2021-11-19 14:10:00,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 907 GetRequests, 902 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:10:00,554 INFO L933 BasicCegarLoop]: 3456 mSDtfsCounter, 3 mSDsluCounter, 6902 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 10358 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:10:00,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 10358 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-19 14:10:00,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5455 states. [2021-11-19 14:10:01,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5455 to 5455. [2021-11-19 14:10:01,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 3690 states have (on average 1.218970189701897) internal successors, (4498), 3751 states have internal predecessors, (4498), 1390 states have call successors, (1390), 364 states have call predecessors, (1390), 372 states have return successors, (1446), 1390 states have call predecessors, (1446), 1390 states have call successors, (1446) [2021-11-19 14:10:01,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 7334 transitions. [2021-11-19 14:10:01,255 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 7334 transitions. Word has length 454 [2021-11-19 14:10:01,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:10:01,256 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 7334 transitions. [2021-11-19 14:10:01,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 2 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2021-11-19 14:10:01,256 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 7334 transitions. [2021-11-19 14:10:01,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2021-11-19 14:10:01,262 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:10:01,262 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:10:01,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2021-11-19 14:10:01,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:10:01,463 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:10:01,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:10:01,463 INFO L85 PathProgramCache]: Analyzing trace with hash -56377898, now seen corresponding path program 1 times [2021-11-19 14:10:01,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:10:01,466 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960627731] [2021-11-19 14:10:01,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:10:01,466 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:10:01,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:10:01,467 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:10:01,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2021-11-19 14:10:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:10:08,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 3234 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:10:08,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:10:10,107 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 84 proven. 1 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2021-11-19 14:10:10,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:10:11,401 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2021-11-19 14:10:11,401 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:10:11,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960627731] [2021-11-19 14:10:11,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1960627731] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:10:11,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1184226788] [2021-11-19 14:10:11,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:10:11,402 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:10:11,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:10:11,403 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:10:11,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (61)] Waiting until timeout for monitored process [2021-11-19 14:10:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:10:13,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 3234 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-19 14:10:13,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:10:15,146 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2021-11-19 14:10:15,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:10:17,898 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2021-11-19 14:10:17,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1184226788] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:10:17,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:10:17,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 5, 9] total 18 [2021-11-19 14:10:17,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524354316] [2021-11-19 14:10:17,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:10:17,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:10:17,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:10:17,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:10:17,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-11-19 14:10:17,900 INFO L87 Difference]: Start difference. First operand 5455 states and 7334 transitions. Second operand has 8 states, 7 states have (on average 30.857142857142858) internal successors, (216), 6 states have internal predecessors, (216), 3 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (60), 4 states have call predecessors, (60), 3 states have call successors, (60) [2021-11-19 14:10:21,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:10:21,780 INFO L93 Difference]: Finished difference Result 10931 states and 14750 transitions. [2021-11-19 14:10:21,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:10:21,781 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 30.857142857142858) internal successors, (216), 6 states have internal predecessors, (216), 3 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (60), 4 states have call predecessors, (60), 3 states have call successors, (60) Word has length 455 [2021-11-19 14:10:21,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:10:21,799 INFO L225 Difference]: With dead ends: 10931 [2021-11-19 14:10:21,799 INFO L226 Difference]: Without dead ends: 5495 [2021-11-19 14:10:21,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1820 GetRequests, 1799 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2021-11-19 14:10:21,814 INFO L933 BasicCegarLoop]: 3420 mSDtfsCounter, 18 mSDsluCounter, 20458 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 23878 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:10:21,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 23878 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-19 14:10:21,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5495 states. [2021-11-19 14:10:22,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5495 to 5467. [2021-11-19 14:10:22,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5467 states, 3698 states have (on average 1.218496484586263) internal successors, (4506), 3755 states have internal predecessors, (4506), 1394 states have call successors, (1394), 364 states have call predecessors, (1394), 372 states have return successors, (1450), 1394 states have call predecessors, (1450), 1394 states have call successors, (1450) [2021-11-19 14:10:22,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 7350 transitions. [2021-11-19 14:10:22,515 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 7350 transitions. Word has length 455 [2021-11-19 14:10:22,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:10:22,516 INFO L470 AbstractCegarLoop]: Abstraction has 5467 states and 7350 transitions. [2021-11-19 14:10:22,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 30.857142857142858) internal successors, (216), 6 states have internal predecessors, (216), 3 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (60), 4 states have call predecessors, (60), 3 states have call successors, (60) [2021-11-19 14:10:22,516 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 7350 transitions. [2021-11-19 14:10:22,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2021-11-19 14:10:22,523 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:10:22,523 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:10:22,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (61)] Forceful destruction successful, exit code 0 [2021-11-19 14:10:22,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (60)] Forceful destruction successful, exit code 0 [2021-11-19 14:10:22,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:10:22,924 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:10:22,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:10:22,924 INFO L85 PathProgramCache]: Analyzing trace with hash 863030327, now seen corresponding path program 1 times [2021-11-19 14:10:22,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:10:22,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [839788970] [2021-11-19 14:10:22,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:10:22,927 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:10:22,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:10:22,928 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:10:22,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2021-11-19 14:10:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:10:30,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 3241 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:10:30,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:10:31,585 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 87 proven. 1 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2021-11-19 14:10:31,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:10:33,023 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2021-11-19 14:10:33,023 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:10:33,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [839788970] [2021-11-19 14:10:33,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [839788970] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:10:33,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2089712039] [2021-11-19 14:10:33,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:10:33,024 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:10:33,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:10:33,025 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:10:33,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2021-11-19 14:10:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:10:35,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 3241 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:10:35,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:10:36,503 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-11-19 14:10:36,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:10:37,675 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2021-11-19 14:10:37,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2089712039] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:10:37,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:10:37,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5, 4] total 11 [2021-11-19 14:10:37,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046435830] [2021-11-19 14:10:37,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:10:37,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:10:37,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:10:37,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:10:37,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:10:37,678 INFO L87 Difference]: Start difference. First operand 5467 states and 7350 transitions. Second operand has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 2 states have call successors, (61), 2 states have call predecessors, (61), 3 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2021-11-19 14:10:39,859 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:40,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:10:40,719 INFO L93 Difference]: Finished difference Result 10921 states and 14695 transitions. [2021-11-19 14:10:40,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:10:40,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 2 states have call successors, (61), 2 states have call predecessors, (61), 3 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 457 [2021-11-19 14:10:40,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:10:40,734 INFO L225 Difference]: With dead ends: 10921 [2021-11-19 14:10:40,734 INFO L226 Difference]: Without dead ends: 5473 [2021-11-19 14:10:40,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1825 GetRequests, 1815 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:10:40,744 INFO L933 BasicCegarLoop]: 3457 mSDtfsCounter, 2 mSDsluCounter, 6902 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10359 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:10:40,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 10359 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-19 14:10:40,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5473 states. [2021-11-19 14:10:41,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5473 to 5469. [2021-11-19 14:10:41,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5469 states, 3700 states have (on average 1.218918918918919) internal successors, (4510), 3757 states have internal predecessors, (4510), 1394 states have call successors, (1394), 364 states have call predecessors, (1394), 372 states have return successors, (1450), 1394 states have call predecessors, (1450), 1394 states have call successors, (1450) [2021-11-19 14:10:41,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5469 states to 5469 states and 7354 transitions. [2021-11-19 14:10:41,369 INFO L78 Accepts]: Start accepts. Automaton has 5469 states and 7354 transitions. Word has length 457 [2021-11-19 14:10:41,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:10:41,370 INFO L470 AbstractCegarLoop]: Abstraction has 5469 states and 7354 transitions. [2021-11-19 14:10:41,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 2 states have call successors, (61), 2 states have call predecessors, (61), 3 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2021-11-19 14:10:41,370 INFO L276 IsEmpty]: Start isEmpty. Operand 5469 states and 7354 transitions. [2021-11-19 14:10:41,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2021-11-19 14:10:41,377 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:10:41,377 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:10:41,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (62)] Ended with exit code 0 [2021-11-19 14:10:41,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (63)] Forceful destruction successful, exit code 0 [2021-11-19 14:10:41,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:10:41,783 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:10:41,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:10:41,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1687118632, now seen corresponding path program 1 times [2021-11-19 14:10:41,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:10:41,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2118872181] [2021-11-19 14:10:41,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:10:41,786 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:10:41,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:10:41,787 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:10:41,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2021-11-19 14:10:48,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:10:49,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 3248 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:10:49,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:10:50,680 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 88 proven. 1 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-11-19 14:10:50,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:10:52,162 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 503 trivial. 0 not checked. [2021-11-19 14:10:52,162 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:10:52,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2118872181] [2021-11-19 14:10:52,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2118872181] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:10:52,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1866410347] [2021-11-19 14:10:52,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:10:52,162 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:10:52,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:10:52,164 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:10:52,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process [2021-11-19 14:10:57,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:10:57,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 3248 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:10:57,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:10:59,025 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 88 proven. 1 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-11-19 14:10:59,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:11:00,177 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 503 trivial. 0 not checked. [2021-11-19 14:11:00,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1866410347] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:11:00,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845610046] [2021-11-19 14:11:00,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:11:00,178 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:11:00,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:11:00,179 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:11:00,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2021-11-19 14:11:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:11:02,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 3248 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 14:11:02,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:11:03,782 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2021-11-19 14:11:03,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:11:04,808 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2021-11-19 14:11:04,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845610046] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:11:04,808 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 14:11:04,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [5, 5, 5, 5] total 15 [2021-11-19 14:11:04,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436597060] [2021-11-19 14:11:04,809 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:11:04,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 14:11:04,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:11:04,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 14:11:04,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-11-19 14:11:04,811 INFO L87 Difference]: Start difference. First operand 5469 states and 7354 transitions. Second operand has 9 states, 9 states have (on average 24.555555555555557) internal successors, (221), 9 states have internal predecessors, (221), 2 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2021-11-19 14:11:16,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:11:16,257 INFO L93 Difference]: Finished difference Result 19364 states and 27433 transitions. [2021-11-19 14:11:16,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-19 14:11:16,258 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 24.555555555555557) internal successors, (221), 9 states have internal predecessors, (221), 2 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 458 [2021-11-19 14:11:16,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:11:16,295 INFO L225 Difference]: With dead ends: 19364 [2021-11-19 14:11:16,296 INFO L226 Difference]: Without dead ends: 13914 [2021-11-19 14:11:16,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2766 GetRequests, 2734 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=225, Invalid=897, Unknown=0, NotChecked=0, Total=1122 [2021-11-19 14:11:16,310 INFO L933 BasicCegarLoop]: 7250 mSDtfsCounter, 4546 mSDsluCounter, 41796 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 2180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5385 SdHoareTripleChecker+Valid, 49046 SdHoareTripleChecker+Invalid, 2906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2180 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:11:16,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5385 Valid, 49046 Invalid, 2906 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2180 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2021-11-19 14:11:16,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13914 states. [2021-11-19 14:11:17,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13914 to 5473. [2021-11-19 14:11:17,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5473 states, 3704 states have (on average 1.21841252699784) internal successors, (4513), 3761 states have internal predecessors, (4513), 1394 states have call successors, (1394), 364 states have call predecessors, (1394), 372 states have return successors, (1450), 1394 states have call predecessors, (1450), 1394 states have call successors, (1450) [2021-11-19 14:11:17,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5473 states to 5473 states and 7357 transitions. [2021-11-19 14:11:17,232 INFO L78 Accepts]: Start accepts. Automaton has 5473 states and 7357 transitions. Word has length 458 [2021-11-19 14:11:17,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:11:17,232 INFO L470 AbstractCegarLoop]: Abstraction has 5473 states and 7357 transitions. [2021-11-19 14:11:17,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 24.555555555555557) internal successors, (221), 9 states have internal predecessors, (221), 2 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2021-11-19 14:11:17,232 INFO L276 IsEmpty]: Start isEmpty. Operand 5473 states and 7357 transitions. [2021-11-19 14:11:17,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2021-11-19 14:11:17,239 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:11:17,239 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:11:17,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (64)] Forceful destruction successful, exit code 0 [2021-11-19 14:11:17,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (65)] Ended with exit code 0 [2021-11-19 14:11:17,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2021-11-19 14:11:17,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:11:17,840 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:11:17,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:11:17,841 INFO L85 PathProgramCache]: Analyzing trace with hash -2018728342, now seen corresponding path program 1 times [2021-11-19 14:11:17,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:11:17,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [978386977] [2021-11-19 14:11:17,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:11:17,844 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:11:17,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:11:17,844 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:11:17,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2021-11-19 14:11:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:11:25,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 3251 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:11:25,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:11:26,283 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 85 proven. 1 refuted. 0 times theorem prover too weak. 430 trivial. 0 not checked. [2021-11-19 14:11:26,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:11:27,585 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 509 trivial. 0 not checked. [2021-11-19 14:11:27,585 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:11:27,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [978386977] [2021-11-19 14:11:27,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [978386977] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:11:27,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [300948000] [2021-11-19 14:11:27,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:11:27,586 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:11:27,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:11:27,587 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:11:27,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (68)] Waiting until timeout for monitored process [2021-11-19 14:11:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:11:32,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 3251 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:11:32,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:11:34,142 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 85 proven. 1 refuted. 0 times theorem prover too weak. 430 trivial. 0 not checked. [2021-11-19 14:11:34,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:11:35,225 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 509 trivial. 0 not checked. [2021-11-19 14:11:35,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [300948000] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:11:35,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724484714] [2021-11-19 14:11:35,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:11:35,226 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:11:35,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:11:35,227 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:11:35,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2021-11-19 14:11:37,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:11:37,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 3251 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:11:37,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:11:38,837 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2021-11-19 14:11:38,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:11:40,259 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2021-11-19 14:11:40,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724484714] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:11:40,260 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 14:11:40,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [5, 5, 5, 5] total 18 [2021-11-19 14:11:40,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424646750] [2021-11-19 14:11:40,261 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:11:40,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 14:11:40,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:11:40,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 14:11:40,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-11-19 14:11:40,262 INFO L87 Difference]: Start difference. First operand 5473 states and 7357 transitions. Second operand has 12 states, 12 states have (on average 20.083333333333332) internal successors, (241), 12 states have internal predecessors, (241), 4 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (69), 4 states have call predecessors, (69), 4 states have call successors, (69) [2021-11-19 14:11:44,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:11:44,669 INFO L93 Difference]: Finished difference Result 12245 states and 16629 transitions. [2021-11-19 14:11:44,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-19 14:11:44,670 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 20.083333333333332) internal successors, (241), 12 states have internal predecessors, (241), 4 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (69), 4 states have call predecessors, (69), 4 states have call successors, (69) Word has length 460 [2021-11-19 14:11:44,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:11:44,688 INFO L225 Difference]: With dead ends: 12245 [2021-11-19 14:11:44,688 INFO L226 Difference]: Without dead ends: 6791 [2021-11-19 14:11:44,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2768 GetRequests, 2744 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=129, Invalid=521, Unknown=0, NotChecked=0, Total=650 [2021-11-19 14:11:44,702 INFO L933 BasicCegarLoop]: 4635 mSDtfsCounter, 3619 mSDsluCounter, 26230 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 1570 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3991 SdHoareTripleChecker+Valid, 30865 SdHoareTripleChecker+Invalid, 1796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1570 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:11:44,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3991 Valid, 30865 Invalid, 1796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1570 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-19 14:11:44,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6791 states. [2021-11-19 14:11:45,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6791 to 5477. [2021-11-19 14:11:45,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5477 states, 3708 states have (on average 1.2181769147788566) internal successors, (4517), 3764 states have internal predecessors, (4517), 1394 states have call successors, (1394), 364 states have call predecessors, (1394), 372 states have return successors, (1450), 1395 states have call predecessors, (1450), 1394 states have call successors, (1450) [2021-11-19 14:11:45,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5477 states to 5477 states and 7361 transitions. [2021-11-19 14:11:45,439 INFO L78 Accepts]: Start accepts. Automaton has 5477 states and 7361 transitions. Word has length 460 [2021-11-19 14:11:45,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:11:45,440 INFO L470 AbstractCegarLoop]: Abstraction has 5477 states and 7361 transitions. [2021-11-19 14:11:45,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 20.083333333333332) internal successors, (241), 12 states have internal predecessors, (241), 4 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (69), 4 states have call predecessors, (69), 4 states have call successors, (69) [2021-11-19 14:11:45,440 INFO L276 IsEmpty]: Start isEmpty. Operand 5477 states and 7361 transitions. [2021-11-19 14:11:45,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2021-11-19 14:11:45,448 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:11:45,449 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:11:45,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (68)] Ended with exit code 0 [2021-11-19 14:11:45,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (67)] Ended with exit code 0 [2021-11-19 14:11:45,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Forceful destruction successful, exit code 0 [2021-11-19 14:11:46,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:11:46,059 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:11:46,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:11:46,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1860892088, now seen corresponding path program 1 times [2021-11-19 14:11:46,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:11:46,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944786144] [2021-11-19 14:11:46,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:11:46,065 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:11:46,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:11:46,065 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:11:46,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (70)] Waiting until timeout for monitored process [2021-11-19 14:11:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:11:53,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 3331 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:11:53,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:11:54,574 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 151 proven. 1 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2021-11-19 14:11:54,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:11:55,940 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2021-11-19 14:11:55,940 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:11:55,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944786144] [2021-11-19 14:11:55,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [944786144] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:11:55,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [682975052] [2021-11-19 14:11:55,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:11:55,941 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:11:55,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:11:55,941 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:11:55,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (71)] Waiting until timeout for monitored process [2021-11-19 14:11:57,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:11:57,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 3331 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 14:11:57,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:11:59,517 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2021-11-19 14:11:59,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:12:01,522 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2021-11-19 14:12:01,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [682975052] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:12:01,522 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:12:01,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [5, 5] total 22 [2021-11-19 14:12:01,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662233413] [2021-11-19 14:12:01,523 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:12:01,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-19 14:12:01,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:12:01,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-19 14:12:01,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2021-11-19 14:12:01,524 INFO L87 Difference]: Start difference. First operand 5477 states and 7361 transitions. Second operand has 16 states, 16 states have (on average 15.9375) internal successors, (255), 14 states have internal predecessors, (255), 4 states have call successors, (74), 2 states have call predecessors, (74), 4 states have return successors, (75), 6 states have call predecessors, (75), 4 states have call successors, (75) [2021-11-19 14:12:07,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:12:07,027 INFO L93 Difference]: Finished difference Result 13406 states and 18390 transitions. [2021-11-19 14:12:07,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-19 14:12:07,027 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.9375) internal successors, (255), 14 states have internal predecessors, (255), 4 states have call successors, (74), 2 states have call predecessors, (74), 4 states have return successors, (75), 6 states have call predecessors, (75), 4 states have call successors, (75) Word has length 489 [2021-11-19 14:12:07,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:12:07,046 INFO L225 Difference]: With dead ends: 13406 [2021-11-19 14:12:07,046 INFO L226 Difference]: Without dead ends: 7948 [2021-11-19 14:12:07,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1965 GetRequests, 1938 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=131, Invalid=681, Unknown=0, NotChecked=0, Total=812 [2021-11-19 14:12:07,058 INFO L933 BasicCegarLoop]: 4911 mSDtfsCounter, 5416 mSDsluCounter, 46704 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 2184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5549 SdHoareTripleChecker+Valid, 51615 SdHoareTripleChecker+Invalid, 2462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2184 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:12:07,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5549 Valid, 51615 Invalid, 2462 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2184 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-11-19 14:12:07,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7948 states. [2021-11-19 14:12:08,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7948 to 6829. [2021-11-19 14:12:08,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6829 states, 4654 states have (on average 1.2331327889987107) internal successors, (5739), 4731 states have internal predecessors, (5739), 1798 states have call successors, (1798), 364 states have call predecessors, (1798), 374 states have return successors, (1866), 1796 states have call predecessors, (1866), 1798 states have call successors, (1866) [2021-11-19 14:12:08,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6829 states to 6829 states and 9403 transitions. [2021-11-19 14:12:08,068 INFO L78 Accepts]: Start accepts. Automaton has 6829 states and 9403 transitions. Word has length 489 [2021-11-19 14:12:08,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:12:08,069 INFO L470 AbstractCegarLoop]: Abstraction has 6829 states and 9403 transitions. [2021-11-19 14:12:08,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.9375) internal successors, (255), 14 states have internal predecessors, (255), 4 states have call successors, (74), 2 states have call predecessors, (74), 4 states have return successors, (75), 6 states have call predecessors, (75), 4 states have call successors, (75) [2021-11-19 14:12:08,069 INFO L276 IsEmpty]: Start isEmpty. Operand 6829 states and 9403 transitions. [2021-11-19 14:12:08,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2021-11-19 14:12:08,083 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:12:08,083 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:12:08,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (70)] Ended with exit code 0 [2021-11-19 14:12:08,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (71)] Forceful destruction successful, exit code 0 [2021-11-19 14:12:08,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:12:08,507 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:12:08,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:12:08,508 INFO L85 PathProgramCache]: Analyzing trace with hash 64151526, now seen corresponding path program 1 times [2021-11-19 14:12:08,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:12:08,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197082944] [2021-11-19 14:12:08,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:12:08,511 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:12:08,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:12:08,512 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:12:08,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (72)] Waiting until timeout for monitored process [2021-11-19 14:12:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:12:15,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 3400 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:12:15,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:12:16,925 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 151 proven. 1 refuted. 0 times theorem prover too weak. 449 trivial. 0 not checked. [2021-11-19 14:12:16,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:12:18,286 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2021-11-19 14:12:18,286 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:12:18,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [197082944] [2021-11-19 14:12:18,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [197082944] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:12:18,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1695832673] [2021-11-19 14:12:18,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:12:18,287 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:12:18,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:12:18,287 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:12:18,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (73)] Waiting until timeout for monitored process [2021-11-19 14:12:23,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:12:23,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 3400 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:12:23,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:12:24,628 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 151 proven. 1 refuted. 0 times theorem prover too weak. 449 trivial. 0 not checked. [2021-11-19 14:12:24,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:12:25,789 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2021-11-19 14:12:25,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1695832673] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:12:25,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173738169] [2021-11-19 14:12:25,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:12:25,790 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:12:25,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:12:25,792 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:12:25,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2021-11-19 14:12:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:12:28,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 3400 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 14:12:28,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:12:29,760 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2021-11-19 14:12:29,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:12:31,191 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 562 trivial. 0 not checked. [2021-11-19 14:12:31,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173738169] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:12:31,191 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 14:12:31,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [5, 5, 5, 5] total 17 [2021-11-19 14:12:31,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353423240] [2021-11-19 14:12:31,192 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:12:31,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-19 14:12:31,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:12:31,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-19 14:12:31,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-11-19 14:12:31,194 INFO L87 Difference]: Start difference. First operand 6829 states and 9403 transitions. Second operand has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 10 states have internal predecessors, (257), 4 states have call successors, (73), 2 states have call predecessors, (73), 4 states have return successors, (73), 5 states have call predecessors, (73), 4 states have call successors, (73) [2021-11-19 14:12:35,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:12:35,882 INFO L93 Difference]: Finished difference Result 16054 states and 22390 transitions. [2021-11-19 14:12:35,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-19 14:12:35,883 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 10 states have internal predecessors, (257), 4 states have call successors, (73), 2 states have call predecessors, (73), 4 states have return successors, (73), 5 states have call predecessors, (73), 4 states have call successors, (73) Word has length 500 [2021-11-19 14:12:35,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:12:35,904 INFO L225 Difference]: With dead ends: 16054 [2021-11-19 14:12:35,904 INFO L226 Difference]: Without dead ends: 9242 [2021-11-19 14:12:35,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3001 GetRequests, 2980 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2021-11-19 14:12:35,918 INFO L933 BasicCegarLoop]: 4899 mSDtfsCounter, 2298 mSDsluCounter, 31665 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2686 SdHoareTripleChecker+Valid, 36564 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:12:35,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2686 Valid, 36564 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-19 14:12:35,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9242 states. [2021-11-19 14:12:36,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9242 to 6851. [2021-11-19 14:12:36,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6851 states, 4670 states have (on average 1.232762312633833) internal successors, (5757), 4747 states have internal predecessors, (5757), 1802 states have call successors, (1802), 364 states have call predecessors, (1802), 376 states have return successors, (1873), 1802 states have call predecessors, (1873), 1802 states have call successors, (1873) [2021-11-19 14:12:36,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6851 states to 6851 states and 9432 transitions. [2021-11-19 14:12:36,973 INFO L78 Accepts]: Start accepts. Automaton has 6851 states and 9432 transitions. Word has length 500 [2021-11-19 14:12:36,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:12:36,973 INFO L470 AbstractCegarLoop]: Abstraction has 6851 states and 9432 transitions. [2021-11-19 14:12:36,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 10 states have internal predecessors, (257), 4 states have call successors, (73), 2 states have call predecessors, (73), 4 states have return successors, (73), 5 states have call predecessors, (73), 4 states have call successors, (73) [2021-11-19 14:12:36,974 INFO L276 IsEmpty]: Start isEmpty. Operand 6851 states and 9432 transitions. [2021-11-19 14:12:36,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2021-11-19 14:12:36,988 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:12:36,988 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 9, 9, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:12:37,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (73)] Forceful destruction successful, exit code 0 [2021-11-19 14:12:37,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (72)] Forceful destruction successful, exit code 0 [2021-11-19 14:12:37,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Forceful destruction successful, exit code 0 [2021-11-19 14:12:37,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:12:37,616 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:12:37,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:12:37,617 INFO L85 PathProgramCache]: Analyzing trace with hash -764881709, now seen corresponding path program 1 times [2021-11-19 14:12:37,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:12:37,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425803146] [2021-11-19 14:12:37,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:12:37,620 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:12:37,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:12:37,621 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:12:37,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (75)] Waiting until timeout for monitored process [2021-11-19 14:12:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:12:44,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 3443 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:12:44,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:12:45,886 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 312 proven. 1 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2021-11-19 14:12:45,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:12:47,449 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 778 trivial. 0 not checked. [2021-11-19 14:12:47,449 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:12:47,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425803146] [2021-11-19 14:12:47,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1425803146] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:12:47,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1099686547] [2021-11-19 14:12:47,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:12:47,450 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:12:47,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:12:47,450 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:12:47,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (76)] Waiting until timeout for monitored process [2021-11-19 14:12:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:12:49,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 3443 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:12:49,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:12:55,249 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 785 trivial. 0 not checked. [2021-11-19 14:12:55,250 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:12:58,018 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 785 trivial. 0 not checked. [2021-11-19 14:12:58,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1099686547] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:12:58,018 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:12:58,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [5, 5] total 13 [2021-11-19 14:12:58,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268515616] [2021-11-19 14:12:58,020 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:12:58,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:12:58,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:12:58,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:12:58,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-11-19 14:12:58,022 INFO L87 Difference]: Start difference. First operand 6851 states and 9432 transitions. Second operand has 7 states, 7 states have (on average 48.57142857142857) internal successors, (340), 5 states have internal predecessors, (340), 2 states have call successors, (138), 4 states have call predecessors, (138), 2 states have return successors, (136), 2 states have call predecessors, (136), 2 states have call successors, (136) [2021-11-19 14:13:00,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:13:00,173 INFO L93 Difference]: Finished difference Result 13659 states and 18810 transitions. [2021-11-19 14:13:00,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:13:00,173 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 48.57142857142857) internal successors, (340), 5 states have internal predecessors, (340), 2 states have call successors, (138), 4 states have call predecessors, (138), 2 states have return successors, (136), 2 states have call predecessors, (136), 2 states have call successors, (136) Word has length 526 [2021-11-19 14:13:00,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:13:00,204 INFO L225 Difference]: With dead ends: 13659 [2021-11-19 14:13:00,204 INFO L226 Difference]: Without dead ends: 13657 [2021-11-19 14:13:00,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2102 GetRequests, 2089 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-11-19 14:13:00,210 INFO L933 BasicCegarLoop]: 4438 mSDtfsCounter, 3100 mSDsluCounter, 16737 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3101 SdHoareTripleChecker+Valid, 21175 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:13:00,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3101 Valid, 21175 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:13:00,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13657 states. [2021-11-19 14:13:02,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13657 to 13651. [2021-11-19 14:13:02,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13651 states, 9307 states have (on average 1.233372730203073) internal successors, (11479), 9471 states have internal predecessors, (11479), 3591 states have call successors, (3591), 728 states have call predecessors, (3591), 750 states have return successors, (3733), 3577 states have call predecessors, (3733), 3591 states have call successors, (3733) [2021-11-19 14:13:02,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13651 states to 13651 states and 18803 transitions. [2021-11-19 14:13:02,352 INFO L78 Accepts]: Start accepts. Automaton has 13651 states and 18803 transitions. Word has length 526 [2021-11-19 14:13:02,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:13:02,352 INFO L470 AbstractCegarLoop]: Abstraction has 13651 states and 18803 transitions. [2021-11-19 14:13:02,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.57142857142857) internal successors, (340), 5 states have internal predecessors, (340), 2 states have call successors, (138), 4 states have call predecessors, (138), 2 states have return successors, (136), 2 states have call predecessors, (136), 2 states have call successors, (136) [2021-11-19 14:13:02,352 INFO L276 IsEmpty]: Start isEmpty. Operand 13651 states and 18803 transitions. [2021-11-19 14:13:02,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2021-11-19 14:13:02,363 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:13:02,364 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:13:02,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (76)] Forceful destruction successful, exit code 0 [2021-11-19 14:13:02,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (75)] Forceful destruction successful, exit code 0 [2021-11-19 14:13:02,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:13:02,765 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:13:02,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:13:02,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1761282166, now seen corresponding path program 1 times [2021-11-19 14:13:02,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:13:02,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1378144825] [2021-11-19 14:13:02,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:13:02,769 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:13:02,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:13:02,769 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:13:02,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42543ed5-9a3b-4ef2-bd8d-2488efc4f5f7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (77)] Waiting until timeout for monitored process [2021-11-19 14:13:09,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:13:09,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 3500 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:13:09,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:13:11,159 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 166 proven. 1 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2021-11-19 14:13:11,159 INFO L328 TraceCheckSpWp]: Computing backward predicates...