./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--usb--kaweth.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f0d35ad3183ac446cae7457c51fa9452f8942f4b349e6e40633392db1dd8aa97 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:57:43,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:57:43,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:57:43,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:57:43,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:57:43,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:57:43,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:57:43,905 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:57:43,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:57:43,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:57:43,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:57:43,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:57:43,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:57:43,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:57:43,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:57:43,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:57:43,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:57:43,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:57:43,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:57:43,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:57:43,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:57:43,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:57:43,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:57:43,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:57:43,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:57:43,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:57:43,963 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:57:43,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:57:43,966 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:57:43,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:57:43,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:57:43,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:57:43,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:57:43,974 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:57:43,976 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:57:43,976 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:57:43,977 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:57:43,978 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:57:43,978 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:57:43,979 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:57:43,980 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:57:43,981 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 19:57:44,022 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:57:44,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:57:44,023 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:57:44,023 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:57:44,024 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:57:44,024 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:57:44,025 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:57:44,025 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:57:44,025 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:57:44,025 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:57:44,026 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:57:44,027 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:57:44,027 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:57:44,027 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:57:44,027 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:57:44,028 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:57:44,028 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:57:44,028 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:57:44,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:57:44,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:57:44,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:57:44,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:57:44,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:57:44,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:57:44,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:57:44,030 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:57:44,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:57:44,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:57:44,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:57:44,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:57:44,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:57:44,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:57:44,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:57:44,034 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:57:44,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:57:44,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:57:44,035 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:57:44,035 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:57:44,035 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0d35ad3183ac446cae7457c51fa9452f8942f4b349e6e40633392db1dd8aa97 [2021-11-25 19:57:44,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:57:44,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:57:44,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:57:44,490 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:57:44,492 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:57:44,493 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i [2021-11-25 19:57:44,594 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/bin/utaipan-eEHZpOm5b7/data/153b6619a/437c9e730b3e44c89c8eb4164c81d3a0/FLAGc6f6cd5f7 [2021-11-25 19:57:45,989 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:57:45,990 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i [2021-11-25 19:57:46,044 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/bin/utaipan-eEHZpOm5b7/data/153b6619a/437c9e730b3e44c89c8eb4164c81d3a0/FLAGc6f6cd5f7 [2021-11-25 19:57:46,100 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/bin/utaipan-eEHZpOm5b7/data/153b6619a/437c9e730b3e44c89c8eb4164c81d3a0 [2021-11-25 19:57:46,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:57:46,105 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:57:46,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:57:46,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:57:46,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:57:46,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:57:46" (1/1) ... [2021-11-25 19:57:46,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6af50eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:57:46, skipping insertion in model container [2021-11-25 19:57:46,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:57:46" (1/1) ... [2021-11-25 19:57:46,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:57:46,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:57:50,848 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385539,385552] [2021-11-25 19:57:50,851 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385684,385697] [2021-11-25 19:57:50,852 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385830,385843] [2021-11-25 19:57:50,852 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385995,386008] [2021-11-25 19:57:50,853 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386153,386166] [2021-11-25 19:57:50,854 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386311,386324] [2021-11-25 19:57:50,854 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386469,386482] [2021-11-25 19:57:50,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386629,386642] [2021-11-25 19:57:50,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386788,386801] [2021-11-25 19:57:50,856 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386927,386940] [2021-11-25 19:57:50,856 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387069,387082] [2021-11-25 19:57:50,857 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387218,387231] [2021-11-25 19:57:50,857 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387357,387370] [2021-11-25 19:57:50,858 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387512,387525] [2021-11-25 19:57:50,859 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387672,387685] [2021-11-25 19:57:50,859 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387823,387836] [2021-11-25 19:57:50,860 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387974,387987] [2021-11-25 19:57:50,860 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388126,388139] [2021-11-25 19:57:50,861 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388275,388288] [2021-11-25 19:57:50,861 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388423,388436] [2021-11-25 19:57:50,862 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388580,388593] [2021-11-25 19:57:50,862 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388729,388742] [2021-11-25 19:57:50,863 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388885,388898] [2021-11-25 19:57:50,863 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389038,389051] [2021-11-25 19:57:50,864 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389184,389197] [2021-11-25 19:57:50,864 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389327,389340] [2021-11-25 19:57:50,865 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389479,389492] [2021-11-25 19:57:50,865 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389625,389638] [2021-11-25 19:57:50,866 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389770,389783] [2021-11-25 19:57:50,866 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389924,389937] [2021-11-25 19:57:50,867 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390075,390088] [2021-11-25 19:57:50,867 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390230,390243] [2021-11-25 19:57:50,868 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390382,390395] [2021-11-25 19:57:50,868 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390537,390550] [2021-11-25 19:57:50,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390701,390714] [2021-11-25 19:57:50,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390857,390870] [2021-11-25 19:57:50,870 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391021,391034] [2021-11-25 19:57:50,870 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391163,391176] [2021-11-25 19:57:50,871 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391321,391334] [2021-11-25 19:57:50,871 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391488,391501] [2021-11-25 19:57:50,872 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391647,391660] [2021-11-25 19:57:50,872 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391806,391819] [2021-11-25 19:57:50,873 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391955,391968] [2021-11-25 19:57:50,873 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392102,392115] [2021-11-25 19:57:50,874 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392241,392254] [2021-11-25 19:57:50,874 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392404,392417] [2021-11-25 19:57:50,875 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392570,392583] [2021-11-25 19:57:50,875 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392734,392747] [2021-11-25 19:57:50,876 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392899,392912] [2021-11-25 19:57:50,876 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393064,393077] [2021-11-25 19:57:50,877 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393230,393243] [2021-11-25 19:57:50,877 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393395,393408] [2021-11-25 19:57:50,878 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393562,393575] [2021-11-25 19:57:50,878 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393722,393735] [2021-11-25 19:57:50,881 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393884,393897] [2021-11-25 19:57:50,882 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394043,394056] [2021-11-25 19:57:50,883 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394189,394202] [2021-11-25 19:57:50,883 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394332,394345] [2021-11-25 19:57:50,884 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394476,394489] [2021-11-25 19:57:50,884 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394619,394632] [2021-11-25 19:57:50,885 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394763,394776] [2021-11-25 19:57:50,886 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394904,394917] [2021-11-25 19:57:50,886 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395042,395055] [2021-11-25 19:57:50,887 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395200,395213] [2021-11-25 19:57:50,887 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395359,395372] [2021-11-25 19:57:50,888 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395515,395528] [2021-11-25 19:57:50,888 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395664,395677] [2021-11-25 19:57:50,889 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395816,395829] [2021-11-25 19:57:50,890 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395967,395980] [2021-11-25 19:57:50,890 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396116,396129] [2021-11-25 19:57:50,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396268,396281] [2021-11-25 19:57:50,892 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396416,396429] [2021-11-25 19:57:50,892 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396569,396582] [2021-11-25 19:57:50,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396720,396733] [2021-11-25 19:57:50,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396870,396883] [2021-11-25 19:57:50,894 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397017,397030] [2021-11-25 19:57:50,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397168,397181] [2021-11-25 19:57:50,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397319,397332] [2021-11-25 19:57:50,896 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397467,397480] [2021-11-25 19:57:50,896 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397633,397646] [2021-11-25 19:57:50,897 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397802,397815] [2021-11-25 19:57:50,897 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397969,397982] [2021-11-25 19:57:50,898 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398137,398150] [2021-11-25 19:57:50,898 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398287,398300] [2021-11-25 19:57:50,899 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398434,398447] [2021-11-25 19:57:50,899 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398595,398608] [2021-11-25 19:57:50,900 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398765,398778] [2021-11-25 19:57:50,900 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398927,398940] [2021-11-25 19:57:50,923 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:57:51,002 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:57:51,480 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385539,385552] [2021-11-25 19:57:51,482 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385684,385697] [2021-11-25 19:57:51,487 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385830,385843] [2021-11-25 19:57:51,488 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385995,386008] [2021-11-25 19:57:51,488 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386153,386166] [2021-11-25 19:57:51,489 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386311,386324] [2021-11-25 19:57:51,490 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386469,386482] [2021-11-25 19:57:51,491 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386629,386642] [2021-11-25 19:57:51,492 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386788,386801] [2021-11-25 19:57:51,492 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386927,386940] [2021-11-25 19:57:51,494 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387069,387082] [2021-11-25 19:57:51,494 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387218,387231] [2021-11-25 19:57:51,495 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387357,387370] [2021-11-25 19:57:51,495 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387512,387525] [2021-11-25 19:57:51,496 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387672,387685] [2021-11-25 19:57:51,496 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387823,387836] [2021-11-25 19:57:51,497 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387974,387987] [2021-11-25 19:57:51,497 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388126,388139] [2021-11-25 19:57:51,498 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388275,388288] [2021-11-25 19:57:51,499 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388423,388436] [2021-11-25 19:57:51,499 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388580,388593] [2021-11-25 19:57:51,500 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388729,388742] [2021-11-25 19:57:51,501 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388885,388898] [2021-11-25 19:57:51,502 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389038,389051] [2021-11-25 19:57:51,502 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389184,389197] [2021-11-25 19:57:51,503 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389327,389340] [2021-11-25 19:57:51,503 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389479,389492] [2021-11-25 19:57:51,505 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389625,389638] [2021-11-25 19:57:51,506 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389770,389783] [2021-11-25 19:57:51,506 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389924,389937] [2021-11-25 19:57:51,507 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390075,390088] [2021-11-25 19:57:51,507 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390230,390243] [2021-11-25 19:57:51,508 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390382,390395] [2021-11-25 19:57:51,511 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390537,390550] [2021-11-25 19:57:51,512 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390701,390714] [2021-11-25 19:57:51,513 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390857,390870] [2021-11-25 19:57:51,513 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391021,391034] [2021-11-25 19:57:51,514 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391163,391176] [2021-11-25 19:57:51,515 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391321,391334] [2021-11-25 19:57:51,515 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391488,391501] [2021-11-25 19:57:51,517 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391647,391660] [2021-11-25 19:57:51,517 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391806,391819] [2021-11-25 19:57:51,518 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391955,391968] [2021-11-25 19:57:51,519 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392102,392115] [2021-11-25 19:57:51,519 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392241,392254] [2021-11-25 19:57:51,520 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392404,392417] [2021-11-25 19:57:51,520 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392570,392583] [2021-11-25 19:57:51,520 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392734,392747] [2021-11-25 19:57:51,521 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392899,392912] [2021-11-25 19:57:51,521 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393064,393077] [2021-11-25 19:57:51,522 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393230,393243] [2021-11-25 19:57:51,522 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393395,393408] [2021-11-25 19:57:51,523 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393562,393575] [2021-11-25 19:57:51,523 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393722,393735] [2021-11-25 19:57:51,525 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393884,393897] [2021-11-25 19:57:51,564 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394043,394056] [2021-11-25 19:57:51,565 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394189,394202] [2021-11-25 19:57:51,565 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394332,394345] [2021-11-25 19:57:51,566 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394476,394489] [2021-11-25 19:57:51,566 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394619,394632] [2021-11-25 19:57:51,566 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394763,394776] [2021-11-25 19:57:51,567 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394904,394917] [2021-11-25 19:57:51,567 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395042,395055] [2021-11-25 19:57:51,568 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395200,395213] [2021-11-25 19:57:51,568 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395359,395372] [2021-11-25 19:57:51,568 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395515,395528] [2021-11-25 19:57:51,569 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395664,395677] [2021-11-25 19:57:51,569 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395816,395829] [2021-11-25 19:57:51,570 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395967,395980] [2021-11-25 19:57:51,570 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396116,396129] [2021-11-25 19:57:51,570 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396268,396281] [2021-11-25 19:57:51,571 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396416,396429] [2021-11-25 19:57:51,571 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396569,396582] [2021-11-25 19:57:51,571 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396720,396733] [2021-11-25 19:57:51,572 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396870,396883] [2021-11-25 19:57:51,572 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397017,397030] [2021-11-25 19:57:51,573 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397168,397181] [2021-11-25 19:57:51,573 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397319,397332] [2021-11-25 19:57:51,576 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397467,397480] [2021-11-25 19:57:51,576 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397633,397646] [2021-11-25 19:57:51,577 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397802,397815] [2021-11-25 19:57:51,578 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397969,397982] [2021-11-25 19:57:51,579 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398137,398150] [2021-11-25 19:57:51,579 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398287,398300] [2021-11-25 19:57:51,579 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_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398434,398447] [2021-11-25 19:57:51,580 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398595,398608] [2021-11-25 19:57:51,580 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398765,398778] [2021-11-25 19:57:51,580 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398927,398940] [2021-11-25 19:57:51,587 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:57:51,910 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:57:51,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:57:51 WrapperNode [2021-11-25 19:57:51,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:57:51,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:57:51,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:57:51,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:57:51,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:57:51" (1/1) ... [2021-11-25 19:57:52,083 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:57:51" (1/1) ... [2021-11-25 19:57:52,281 INFO L137 Inliner]: procedures = 616, calls = 2803, calls flagged for inlining = 287, calls inlined = 187, statements flattened = 4770 [2021-11-25 19:57:52,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:57:52,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:57:52,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:57:52,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:57:52,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:57:51" (1/1) ... [2021-11-25 19:57:52,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:57:51" (1/1) ... [2021-11-25 19:57:52,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:57:51" (1/1) ... [2021-11-25 19:57:52,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:57:51" (1/1) ... [2021-11-25 19:57:52,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:57:51" (1/1) ... [2021-11-25 19:57:52,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:57:51" (1/1) ... [2021-11-25 19:57:52,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:57:51" (1/1) ... [2021-11-25 19:57:52,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:57:52,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:57:52,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:57:52,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:57:52,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:57:51" (1/1) ... [2021-11-25 19:57:52,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:57:52,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:57:52,613 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:57:52,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:57:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-25 19:57:52,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-25 19:57:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-25 19:57:52,668 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-25 19:57:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 19:57:52,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 19:57:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_device_lock_of_kaweth_device [2021-11-25 19:57:52,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_device_lock_of_kaweth_device [2021-11-25 19:57:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-25 19:57:52,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-25 19:57:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2021-11-25 19:57:52,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2021-11-25 19:57:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 19:57:52,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 19:57:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_open [2021-11-25 19:57:52,673 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_open [2021-11-25 19:57:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-25 19:57:52,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-25 19:57:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-25 19:57:52,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-25 19:57:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 19:57:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_resume [2021-11-25 19:57:52,674 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_resume [2021-11-25 19:57:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 19:57:52,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 19:57:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 19:57:52,675 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 19:57:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 19:57:52,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 19:57:52,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-25 19:57:52,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-25 19:57:52,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:57:52,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-25 19:57:52,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-25 19:57:52,677 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 19:57:52,677 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 19:57:52,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 19:57:52,677 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_resubmit_rx_urb [2021-11-25 19:57:52,677 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_resubmit_rx_urb [2021-11-25 19:57:52,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 19:57:52,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-25 19:57:52,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-25 19:57:52,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 19:57:52,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 19:57:52,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-25 19:57:52,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-25 19:57:52,679 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-11-25 19:57:52,679 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-11-25 19:57:52,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:57:52,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-25 19:57:52,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-25 19:57:52,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-25 19:57:52,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-25 19:57:52,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 19:57:52,680 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 19:57:52,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-25 19:57:52,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-25 19:57:52,681 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-25 19:57:52,681 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-25 19:57:52,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 19:57:52,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 19:57:52,682 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_close [2021-11-25 19:57:52,682 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_close [2021-11-25 19:57:52,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-25 19:57:52,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-25 19:57:52,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_129 [2021-11-25 19:57:52,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_129 [2021-11-25 19:57:52,686 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_download_firmware [2021-11-25 19:57:52,686 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_download_firmware [2021-11-25 19:57:52,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-25 19:57:52,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-25 19:57:52,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:57:52,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:57:52,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 19:57:52,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 19:57:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 19:57:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 19:57:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 19:57:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 19:57:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-25 19:57:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-25 19:57:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-25 19:57:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-25 19:57:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 19:57:52,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 19:57:52,696 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-11-25 19:57:52,696 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-11-25 19:57:52,697 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-25 19:57:52,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-25 19:57:52,698 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_tx_timeout [2021-11-25 19:57:52,698 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_tx_timeout [2021-11-25 19:57:52,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:57:52,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:57:52,698 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-11-25 19:57:52,699 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-11-25 19:57:52,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 19:57:52,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 19:57:52,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 19:57:52,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 19:57:52,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 19:57:52,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 19:57:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_133 [2021-11-25 19:57:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_133 [2021-11-25 19:57:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-11-25 19:57:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-11-25 19:57:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_async_set_rx_mode [2021-11-25 19:57:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_async_set_rx_mode [2021-11-25 19:57:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_device_lock_of_kaweth_device [2021-11-25 19:57:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_device_lock_of_kaweth_device [2021-11-25 19:57:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 19:57:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 19:57:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-25 19:57:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-25 19:57:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-25 19:57:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-25 19:57:52,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-25 19:57:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-25 19:57:52,702 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-25 19:57:52,703 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-25 19:57:52,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:57:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 19:57:52,754 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 19:57:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-25 19:57:52,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-25 19:57:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 19:57:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_free_coherent [2021-11-25 19:57:52,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_free_coherent [2021-11-25 19:57:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 19:57:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-25 19:57:52,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-25 19:57:52,755 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 19:57:52,755 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 19:57:52,755 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-25 19:57:52,755 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-25 19:57:52,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 19:57:52,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 19:57:52,755 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-11-25 19:57:52,755 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-11-25 19:57:52,755 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-25 19:57:52,755 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-25 19:57:52,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-25 19:57:52,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-25 19:57:52,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-11-25 19:57:52,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-11-25 19:57:52,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-25 19:57:52,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-25 19:57:52,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-25 19:57:52,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-25 19:57:52,756 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 19:57:52,756 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 19:57:52,756 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_set_rx_mode [2021-11-25 19:57:52,756 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_set_rx_mode [2021-11-25 19:57:52,756 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-25 19:57:52,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-25 19:57:52,756 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-25 19:57:52,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-25 19:57:52,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-25 19:57:52,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-25 19:57:52,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:57:52,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-25 19:57:52,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-25 19:57:52,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 19:57:52,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 19:57:52,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-25 19:57:52,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-25 19:57:52,757 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_resubmit_int_urb [2021-11-25 19:57:52,757 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_resubmit_int_urb [2021-11-25 19:57:52,757 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_control [2021-11-25 19:57:52,758 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_control [2021-11-25 19:57:52,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 19:57:52,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 19:57:52,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-25 19:57:52,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-25 19:57:52,758 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-25 19:57:52,758 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_kill_urbs [2021-11-25 19:57:52,758 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_kill_urbs [2021-11-25 19:57:52,758 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_disconnect [2021-11-25 19:57:52,758 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_disconnect [2021-11-25 19:57:52,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:57:52,758 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-25 19:57:52,759 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-25 19:57:53,527 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:57:53,532 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:57:53,740 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 19:58:01,857 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:58:02,629 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:58:02,629 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 19:58:02,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:58:02 BoogieIcfgContainer [2021-11-25 19:58:02,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:58:02,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:58:02,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:58:02,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:58:02,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:57:46" (1/3) ... [2021-11-25 19:58:02,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d5fd64b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:58:02, skipping insertion in model container [2021-11-25 19:58:02,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:57:51" (2/3) ... [2021-11-25 19:58:02,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d5fd64b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:58:02, skipping insertion in model container [2021-11-25 19:58:02,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:58:02" (3/3) ... [2021-11-25 19:58:02,658 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i [2021-11-25 19:58:02,666 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:58:02,666 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-11-25 19:58:02,752 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:58:02,768 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 19:58:02,772 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-11-25 19:58:02,827 INFO L276 IsEmpty]: Start isEmpty. Operand has 916 states, 505 states have (on average 1.2752475247524753) internal successors, (644), 545 states have internal predecessors, (644), 301 states have call successors, (301), 81 states have call predecessors, (301), 80 states have return successors, (297), 296 states have call predecessors, (297), 297 states have call successors, (297) [2021-11-25 19:58:02,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-25 19:58:02,836 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:58:02,837 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:58:02,837 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-25 19:58:02,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:58:02,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1899553895, now seen corresponding path program 1 times [2021-11-25 19:58:02,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:58:02,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769748929] [2021-11-25 19:58:02,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:58:02,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:58:03,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:58:04,021 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 19:58:04,022 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:58:04,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769748929] [2021-11-25 19:58:04,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769748929] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:58:04,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:58:04,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:58:04,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403131052] [2021-11-25 19:58:04,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:58:04,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:58:04,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:58:04,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:58:04,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:58:04,085 INFO L87 Difference]: Start difference. First operand has 916 states, 505 states have (on average 1.2752475247524753) internal successors, (644), 545 states have internal predecessors, (644), 301 states have call successors, (301), 81 states have call predecessors, (301), 80 states have return successors, (297), 296 states have call predecessors, (297), 297 states have call successors, (297) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-25 19:58:07,837 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:58:08,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:58:08,834 INFO L93 Difference]: Finished difference Result 1903 states and 2665 transitions. [2021-11-25 19:58:08,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:58:08,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 51 [2021-11-25 19:58:08,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:58:08,887 INFO L225 Difference]: With dead ends: 1903 [2021-11-25 19:58:08,887 INFO L226 Difference]: Without dead ends: 1042 [2021-11-25 19:58:08,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:58:08,910 INFO L933 BasicCegarLoop]: 1087 mSDtfsCounter, 1174 mSDsluCounter, 1433 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 2318 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:58:08,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1178 Valid, 2318 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2021-11-25 19:58:08,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2021-11-25 19:58:09,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1033. [2021-11-25 19:58:09,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 576 states have (on average 1.2100694444444444) internal successors, (697), 613 states have internal predecessors, (697), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-25 19:58:09,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1351 transitions. [2021-11-25 19:58:09,156 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1351 transitions. Word has length 51 [2021-11-25 19:58:09,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:58:09,157 INFO L470 AbstractCegarLoop]: Abstraction has 1033 states and 1351 transitions. [2021-11-25 19:58:09,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-25 19:58:09,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1351 transitions. [2021-11-25 19:58:09,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-25 19:58:09,163 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:58:09,164 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:58:09,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:58:09,164 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-25 19:58:09,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:58:09,166 INFO L85 PathProgramCache]: Analyzing trace with hash -2086936408, now seen corresponding path program 1 times [2021-11-25 19:58:09,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:58:09,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579217931] [2021-11-25 19:58:09,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:58:09,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:58:09,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:58:09,756 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 19:58:09,756 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:58:09,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579217931] [2021-11-25 19:58:09,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579217931] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:58:09,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:58:09,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:58:09,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072775734] [2021-11-25 19:58:09,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:58:09,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:58:09,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:58:09,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:58:09,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:58:09,761 INFO L87 Difference]: Start difference. First operand 1033 states and 1351 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-25 19:58:13,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:58:13,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:58:13,752 INFO L93 Difference]: Finished difference Result 1042 states and 1358 transitions. [2021-11-25 19:58:13,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:58:13,753 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2021-11-25 19:58:13,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:58:13,762 INFO L225 Difference]: With dead ends: 1042 [2021-11-25 19:58:13,762 INFO L226 Difference]: Without dead ends: 1040 [2021-11-25 19:58:13,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:58:13,764 INFO L933 BasicCegarLoop]: 1071 mSDtfsCounter, 1156 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 2284 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:58:13,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1160 Valid, 2284 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2021-11-25 19:58:13,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2021-11-25 19:58:13,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 1031. [2021-11-25 19:58:13,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 575 states have (on average 1.208695652173913) internal successors, (695), 611 states have internal predecessors, (695), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-25 19:58:13,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1349 transitions. [2021-11-25 19:58:13,836 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1349 transitions. Word has length 56 [2021-11-25 19:58:13,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:58:13,837 INFO L470 AbstractCegarLoop]: Abstraction has 1031 states and 1349 transitions. [2021-11-25 19:58:13,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-25 19:58:13,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1349 transitions. [2021-11-25 19:58:13,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-25 19:58:13,841 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:58:13,841 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:58:13,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:58:13,841 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-25 19:58:13,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:58:13,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1573572753, now seen corresponding path program 1 times [2021-11-25 19:58:13,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:58:13,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62259204] [2021-11-25 19:58:13,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:58:13,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:58:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:58:14,182 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 19:58:14,182 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:58:14,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62259204] [2021-11-25 19:58:14,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62259204] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:58:14,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:58:14,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:58:14,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874220848] [2021-11-25 19:58:14,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:58:14,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:58:14,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:58:14,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:58:14,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:58:14,185 INFO L87 Difference]: Start difference. First operand 1031 states and 1349 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-25 19:58:16,402 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:58:17,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:58:17,071 INFO L93 Difference]: Finished difference Result 1031 states and 1349 transitions. [2021-11-25 19:58:17,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:58:17,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2021-11-25 19:58:17,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:58:17,080 INFO L225 Difference]: With dead ends: 1031 [2021-11-25 19:58:17,080 INFO L226 Difference]: Without dead ends: 1029 [2021-11-25 19:58:17,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:58:17,082 INFO L933 BasicCegarLoop]: 1020 mSDtfsCounter, 1167 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1169 SdHoareTripleChecker+Valid, 2040 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:58:17,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1169 Valid, 2040 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-25 19:58:17,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2021-11-25 19:58:17,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 1029. [2021-11-25 19:58:17,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1029 states, 574 states have (on average 1.2073170731707317) internal successors, (693), 609 states have internal predecessors, (693), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-25 19:58:17,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1347 transitions. [2021-11-25 19:58:17,145 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1347 transitions. Word has length 61 [2021-11-25 19:58:17,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:58:17,146 INFO L470 AbstractCegarLoop]: Abstraction has 1029 states and 1347 transitions. [2021-11-25 19:58:17,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-25 19:58:17,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1347 transitions. [2021-11-25 19:58:17,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-25 19:58:17,149 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:58:17,149 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:58:17,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 19:58:17,149 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-25 19:58:17,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:58:17,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1946985049, now seen corresponding path program 1 times [2021-11-25 19:58:17,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:58:17,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21279472] [2021-11-25 19:58:17,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:58:17,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:58:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:58:17,549 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 19:58:17,550 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:58:17,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21279472] [2021-11-25 19:58:17,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21279472] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:58:17,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:58:17,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:58:17,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073521663] [2021-11-25 19:58:17,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:58:17,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:58:17,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:58:17,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:58:17,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:58:17,553 INFO L87 Difference]: Start difference. First operand 1029 states and 1347 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-25 19:58:20,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:58:21,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:58:21,311 INFO L93 Difference]: Finished difference Result 1038 states and 1354 transitions. [2021-11-25 19:58:21,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:58:21,312 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 66 [2021-11-25 19:58:21,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:58:21,320 INFO L225 Difference]: With dead ends: 1038 [2021-11-25 19:58:21,320 INFO L226 Difference]: Without dead ends: 1036 [2021-11-25 19:58:21,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:58:21,322 INFO L933 BasicCegarLoop]: 1067 mSDtfsCounter, 1150 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 2276 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:58:21,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1154 Valid, 2276 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2021-11-25 19:58:21,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2021-11-25 19:58:21,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1027. [2021-11-25 19:58:21,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 573 states have (on average 1.205933682373473) internal successors, (691), 607 states have internal predecessors, (691), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-25 19:58:21,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1345 transitions. [2021-11-25 19:58:21,391 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1345 transitions. Word has length 66 [2021-11-25 19:58:21,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:58:21,392 INFO L470 AbstractCegarLoop]: Abstraction has 1027 states and 1345 transitions. [2021-11-25 19:58:21,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-25 19:58:21,392 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1345 transitions. [2021-11-25 19:58:21,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-25 19:58:21,394 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:58:21,395 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:58:21,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 19:58:21,395 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-25 19:58:21,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:58:21,396 INFO L85 PathProgramCache]: Analyzing trace with hash 993276308, now seen corresponding path program 1 times [2021-11-25 19:58:21,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:58:21,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335970216] [2021-11-25 19:58:21,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:58:21,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:58:21,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:58:21,818 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 19:58:21,818 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:58:21,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335970216] [2021-11-25 19:58:21,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335970216] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:58:21,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:58:21,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:58:21,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585415075] [2021-11-25 19:58:21,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:58:21,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:58:21,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:58:21,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:58:21,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:58:21,822 INFO L87 Difference]: Start difference. First operand 1027 states and 1345 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 19:58:24,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:58:26,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:58:27,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:58:27,119 INFO L93 Difference]: Finished difference Result 1027 states and 1345 transitions. [2021-11-25 19:58:27,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:58:27,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2021-11-25 19:58:27,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:58:27,129 INFO L225 Difference]: With dead ends: 1027 [2021-11-25 19:58:27,129 INFO L226 Difference]: Without dead ends: 1025 [2021-11-25 19:58:27,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:58:27,131 INFO L933 BasicCegarLoop]: 1016 mSDtfsCounter, 1161 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 2032 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:58:27,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1163 Valid, 2032 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2021-11-25 19:58:27,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2021-11-25 19:58:27,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 1025. [2021-11-25 19:58:27,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 572 states have (on average 1.2045454545454546) internal successors, (689), 605 states have internal predecessors, (689), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-25 19:58:27,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1343 transitions. [2021-11-25 19:58:27,220 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1343 transitions. Word has length 71 [2021-11-25 19:58:27,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:58:27,220 INFO L470 AbstractCegarLoop]: Abstraction has 1025 states and 1343 transitions. [2021-11-25 19:58:27,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 19:58:27,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1343 transitions. [2021-11-25 19:58:27,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-25 19:58:27,223 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:58:27,223 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:58:27,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 19:58:27,224 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-25 19:58:27,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:58:27,224 INFO L85 PathProgramCache]: Analyzing trace with hash 950289720, now seen corresponding path program 1 times [2021-11-25 19:58:27,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:58:27,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265749766] [2021-11-25 19:58:27,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:58:27,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:58:27,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:58:27,515 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 19:58:27,515 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:58:27,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265749766] [2021-11-25 19:58:27,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265749766] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:58:27,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:58:27,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:58:27,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054482749] [2021-11-25 19:58:27,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:58:27,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:58:27,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:58:27,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:58:27,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:58:27,518 INFO L87 Difference]: Start difference. First operand 1025 states and 1343 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 19:58:30,721 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:58:31,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:58:31,421 INFO L93 Difference]: Finished difference Result 1034 states and 1350 transitions. [2021-11-25 19:58:31,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:58:31,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 76 [2021-11-25 19:58:31,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:58:31,430 INFO L225 Difference]: With dead ends: 1034 [2021-11-25 19:58:31,431 INFO L226 Difference]: Without dead ends: 1032 [2021-11-25 19:58:31,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:58:31,433 INFO L933 BasicCegarLoop]: 1063 mSDtfsCounter, 1144 mSDsluCounter, 1406 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 2268 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:58:31,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1148 Valid, 2268 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-11-25 19:58:31,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2021-11-25 19:58:31,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 1023. [2021-11-25 19:58:31,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1023 states, 571 states have (on average 1.203152364273205) internal successors, (687), 603 states have internal predecessors, (687), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-25 19:58:31,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1341 transitions. [2021-11-25 19:58:31,506 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1341 transitions. Word has length 76 [2021-11-25 19:58:31,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:58:31,507 INFO L470 AbstractCegarLoop]: Abstraction has 1023 states and 1341 transitions. [2021-11-25 19:58:31,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 19:58:31,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1341 transitions. [2021-11-25 19:58:31,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-25 19:58:31,509 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:58:31,509 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:58:31,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 19:58:31,510 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-25 19:58:31,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:58:31,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1809153545, now seen corresponding path program 1 times [2021-11-25 19:58:31,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:58:31,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793126763] [2021-11-25 19:58:31,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:58:31,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:58:31,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:58:31,856 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 19:58:31,857 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:58:31,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793126763] [2021-11-25 19:58:31,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793126763] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:58:31,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:58:31,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:58:31,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892490121] [2021-11-25 19:58:31,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:58:31,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:58:31,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:58:31,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:58:31,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:58:31,859 INFO L87 Difference]: Start difference. First operand 1023 states and 1341 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 19:58:34,109 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:58:36,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:58:36,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:58:36,609 INFO L93 Difference]: Finished difference Result 1023 states and 1341 transitions. [2021-11-25 19:58:36,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:58:36,610 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 81 [2021-11-25 19:58:36,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:58:36,618 INFO L225 Difference]: With dead ends: 1023 [2021-11-25 19:58:36,619 INFO L226 Difference]: Without dead ends: 1021 [2021-11-25 19:58:36,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:58:36,620 INFO L933 BasicCegarLoop]: 1012 mSDtfsCounter, 1155 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 2024 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:58:36,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1157 Valid, 2024 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 338 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2021-11-25 19:58:36,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2021-11-25 19:58:36,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 1021. [2021-11-25 19:58:36,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 570 states have (on average 1.2017543859649122) internal successors, (685), 601 states have internal predecessors, (685), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-25 19:58:36,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1339 transitions. [2021-11-25 19:58:36,692 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1339 transitions. Word has length 81 [2021-11-25 19:58:36,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:58:36,692 INFO L470 AbstractCegarLoop]: Abstraction has 1021 states and 1339 transitions. [2021-11-25 19:58:36,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 19:58:36,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1339 transitions. [2021-11-25 19:58:36,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-25 19:58:36,694 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:58:36,694 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:58:36,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 19:58:36,695 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-25 19:58:36,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:58:36,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1665949854, now seen corresponding path program 1 times [2021-11-25 19:58:36,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:58:36,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603131996] [2021-11-25 19:58:36,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:58:36,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:58:36,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:58:36,983 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 19:58:36,983 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:58:36,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603131996] [2021-11-25 19:58:36,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603131996] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:58:36,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:58:36,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:58:36,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530262166] [2021-11-25 19:58:36,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:58:36,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:58:36,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:58:36,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:58:36,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:58:36,986 INFO L87 Difference]: Start difference. First operand 1021 states and 1339 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 19:58:40,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:58:40,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:58:40,658 INFO L93 Difference]: Finished difference Result 1030 states and 1346 transitions. [2021-11-25 19:58:40,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:58:40,659 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 86 [2021-11-25 19:58:40,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:58:40,667 INFO L225 Difference]: With dead ends: 1030 [2021-11-25 19:58:40,667 INFO L226 Difference]: Without dead ends: 1028 [2021-11-25 19:58:40,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:58:40,669 INFO L933 BasicCegarLoop]: 1059 mSDtfsCounter, 1142 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 2256 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:58:40,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1146 Valid, 2256 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-11-25 19:58:40,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2021-11-25 19:58:40,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1019. [2021-11-25 19:58:40,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 569 states have (on average 1.2003514938488578) internal successors, (683), 599 states have internal predecessors, (683), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-25 19:58:40,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1337 transitions. [2021-11-25 19:58:40,760 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1337 transitions. Word has length 86 [2021-11-25 19:58:40,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:58:40,763 INFO L470 AbstractCegarLoop]: Abstraction has 1019 states and 1337 transitions. [2021-11-25 19:58:40,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 19:58:40,763 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1337 transitions. [2021-11-25 19:58:40,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-25 19:58:40,766 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:58:40,766 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:58:40,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 19:58:40,767 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-25 19:58:40,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:58:40,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1045124389, now seen corresponding path program 1 times [2021-11-25 19:58:40,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:58:40,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482381761] [2021-11-25 19:58:40,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:58:40,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:58:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:58:41,106 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 19:58:41,106 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:58:41,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482381761] [2021-11-25 19:58:41,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482381761] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:58:41,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:58:41,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:58:41,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492114334] [2021-11-25 19:58:41,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:58:41,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:58:41,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:58:41,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:58:41,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:58:41,110 INFO L87 Difference]: Start difference. First operand 1019 states and 1337 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 19:58:44,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:58:45,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:58:45,124 INFO L93 Difference]: Finished difference Result 1028 states and 1344 transitions. [2021-11-25 19:58:45,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:58:45,125 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 88 [2021-11-25 19:58:45,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:58:45,133 INFO L225 Difference]: With dead ends: 1028 [2021-11-25 19:58:45,133 INFO L226 Difference]: Without dead ends: 1026 [2021-11-25 19:58:45,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:58:45,134 INFO L933 BasicCegarLoop]: 1057 mSDtfsCounter, 1134 mSDsluCounter, 1400 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 2256 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:58:45,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1138 Valid, 2256 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2021-11-25 19:58:45,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2021-11-25 19:58:45,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 1017. [2021-11-25 19:58:45,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 568 states have (on average 1.198943661971831) internal successors, (681), 597 states have internal predecessors, (681), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-25 19:58:45,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1335 transitions. [2021-11-25 19:58:45,210 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1335 transitions. Word has length 88 [2021-11-25 19:58:45,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:58:45,211 INFO L470 AbstractCegarLoop]: Abstraction has 1017 states and 1335 transitions. [2021-11-25 19:58:45,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 19:58:45,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1335 transitions. [2021-11-25 19:58:45,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-25 19:58:45,213 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:58:45,213 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:58:45,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 19:58:45,214 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-25 19:58:45,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:58:45,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1170818888, now seen corresponding path program 1 times [2021-11-25 19:58:45,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:58:45,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490465963] [2021-11-25 19:58:45,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:58:45,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:58:45,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:58:45,498 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 19:58:45,498 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:58:45,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490465963] [2021-11-25 19:58:45,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490465963] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:58:45,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:58:45,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:58:45,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135698248] [2021-11-25 19:58:45,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:58:45,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:58:45,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:58:45,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:58:45,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:58:45,507 INFO L87 Difference]: Start difference. First operand 1017 states and 1335 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 19:58:48,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:58:49,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:58:49,284 INFO L93 Difference]: Finished difference Result 1026 states and 1342 transitions. [2021-11-25 19:58:49,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:58:49,285 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 93 [2021-11-25 19:58:49,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:58:49,292 INFO L225 Difference]: With dead ends: 1026 [2021-11-25 19:58:49,293 INFO L226 Difference]: Without dead ends: 1024 [2021-11-25 19:58:49,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:58:49,294 INFO L933 BasicCegarLoop]: 1055 mSDtfsCounter, 1133 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:58:49,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1137 Valid, 2252 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2021-11-25 19:58:49,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2021-11-25 19:58:49,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 1015. [2021-11-25 19:58:49,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 567 states have (on average 1.1975308641975309) internal successors, (679), 595 states have internal predecessors, (679), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-25 19:58:49,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1333 transitions. [2021-11-25 19:58:49,369 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1333 transitions. Word has length 93 [2021-11-25 19:58:49,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:58:49,369 INFO L470 AbstractCegarLoop]: Abstraction has 1015 states and 1333 transitions. [2021-11-25 19:58:49,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 19:58:49,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1333 transitions. [2021-11-25 19:58:49,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-25 19:58:49,371 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:58:49,372 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:58:49,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 19:58:49,372 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-25 19:58:49,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:58:49,373 INFO L85 PathProgramCache]: Analyzing trace with hash -2080074411, now seen corresponding path program 1 times [2021-11-25 19:58:49,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:58:49,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266603364] [2021-11-25 19:58:49,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:58:49,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:58:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:58:49,662 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 19:58:49,663 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:58:49,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266603364] [2021-11-25 19:58:49,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266603364] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:58:49,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:58:49,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:58:49,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52491240] [2021-11-25 19:58:49,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:58:49,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:58:49,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:58:49,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:58:49,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:58:49,666 INFO L87 Difference]: Start difference. First operand 1015 states and 1333 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 19:58:53,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:58:53,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:58:53,813 INFO L93 Difference]: Finished difference Result 1024 states and 1340 transitions. [2021-11-25 19:58:53,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:58:53,814 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 98 [2021-11-25 19:58:53,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:58:53,820 INFO L225 Difference]: With dead ends: 1024 [2021-11-25 19:58:53,821 INFO L226 Difference]: Without dead ends: 1022 [2021-11-25 19:58:53,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:58:53,822 INFO L933 BasicCegarLoop]: 1053 mSDtfsCounter, 1130 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 2248 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:58:53,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1134 Valid, 2248 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2021-11-25 19:58:53,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2021-11-25 19:58:53,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 1013. [2021-11-25 19:58:53,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 566 states have (on average 1.196113074204947) internal successors, (677), 593 states have internal predecessors, (677), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-25 19:58:53,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1331 transitions. [2021-11-25 19:58:53,899 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1331 transitions. Word has length 98 [2021-11-25 19:58:53,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:58:53,899 INFO L470 AbstractCegarLoop]: Abstraction has 1013 states and 1331 transitions. [2021-11-25 19:58:53,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 19:58:53,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1331 transitions. [2021-11-25 19:58:53,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-25 19:58:53,901 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:58:53,902 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:58:53,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 19:58:53,902 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-25 19:58:53,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:58:53,903 INFO L85 PathProgramCache]: Analyzing trace with hash 499093469, now seen corresponding path program 1 times [2021-11-25 19:58:53,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:58:53,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877083691] [2021-11-25 19:58:53,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:58:53,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:58:54,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:58:54,180 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 19:58:54,180 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:58:54,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877083691] [2021-11-25 19:58:54,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877083691] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:58:54,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:58:54,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:58:54,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939606637] [2021-11-25 19:58:54,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:58:54,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:58:54,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:58:54,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:58:54,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:58:54,183 INFO L87 Difference]: Start difference. First operand 1013 states and 1331 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-25 19:58:56,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:58:58,616 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:58:59,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:58:59,252 INFO L93 Difference]: Finished difference Result 1013 states and 1331 transitions. [2021-11-25 19:58:59,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:58:59,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 103 [2021-11-25 19:58:59,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:58:59,259 INFO L225 Difference]: With dead ends: 1013 [2021-11-25 19:58:59,259 INFO L226 Difference]: Without dead ends: 1011 [2021-11-25 19:58:59,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:58:59,261 INFO L933 BasicCegarLoop]: 1002 mSDtfsCounter, 1141 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 2004 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:58:59,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1143 Valid, 2004 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 338 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2021-11-25 19:58:59,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2021-11-25 19:58:59,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 1011. [2021-11-25 19:58:59,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1011 states, 565 states have (on average 1.1946902654867257) internal successors, (675), 591 states have internal predecessors, (675), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-25 19:58:59,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 1011 states and 1329 transitions. [2021-11-25 19:58:59,336 INFO L78 Accepts]: Start accepts. Automaton has 1011 states and 1329 transitions. Word has length 103 [2021-11-25 19:58:59,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:58:59,336 INFO L470 AbstractCegarLoop]: Abstraction has 1011 states and 1329 transitions. [2021-11-25 19:58:59,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-25 19:58:59,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1011 states and 1329 transitions. [2021-11-25 19:58:59,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-25 19:58:59,339 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:58:59,339 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:58:59,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 19:58:59,340 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-25 19:58:59,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:58:59,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1771861774, now seen corresponding path program 1 times [2021-11-25 19:58:59,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:58:59,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836865202] [2021-11-25 19:58:59,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:58:59,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:58:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:58:59,614 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 19:58:59,614 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:58:59,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836865202] [2021-11-25 19:58:59,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836865202] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:58:59,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:58:59,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:58:59,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605783090] [2021-11-25 19:58:59,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:58:59,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:58:59,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:58:59,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:58:59,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:58:59,617 INFO L87 Difference]: Start difference. First operand 1011 states and 1329 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-25 19:59:02,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:59:03,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:59:03,358 INFO L93 Difference]: Finished difference Result 1020 states and 1336 transitions. [2021-11-25 19:59:03,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:59:03,358 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 108 [2021-11-25 19:59:03,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:59:03,365 INFO L225 Difference]: With dead ends: 1020 [2021-11-25 19:59:03,365 INFO L226 Difference]: Without dead ends: 1018 [2021-11-25 19:59:03,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:59:03,367 INFO L933 BasicCegarLoop]: 1049 mSDtfsCounter, 1124 mSDsluCounter, 1392 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1128 SdHoareTripleChecker+Valid, 2240 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:59:03,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1128 Valid, 2240 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2021-11-25 19:59:03,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1018 states. [2021-11-25 19:59:03,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1018 to 1009. [2021-11-25 19:59:03,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 564 states have (on average 1.1932624113475176) internal successors, (673), 589 states have internal predecessors, (673), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-25 19:59:03,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1327 transitions. [2021-11-25 19:59:03,447 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1327 transitions. Word has length 108 [2021-11-25 19:59:03,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:59:03,448 INFO L470 AbstractCegarLoop]: Abstraction has 1009 states and 1327 transitions. [2021-11-25 19:59:03,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-25 19:59:03,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1327 transitions. [2021-11-25 19:59:03,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-25 19:59:03,450 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:59:03,451 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:59:03,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-25 19:59:03,451 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-25 19:59:03,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:59:03,452 INFO L85 PathProgramCache]: Analyzing trace with hash -201463559, now seen corresponding path program 1 times [2021-11-25 19:59:03,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:59:03,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408304193] [2021-11-25 19:59:03,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:59:03,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:59:03,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:59:03,710 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 19:59:03,710 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:59:03,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408304193] [2021-11-25 19:59:03,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408304193] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:59:03,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:59:03,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:59:03,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85990509] [2021-11-25 19:59:03,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:59:03,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:59:03,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:59:03,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:59:03,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:59:03,713 INFO L87 Difference]: Start difference. First operand 1009 states and 1327 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-25 19:59:06,773 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:59:07,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:59:07,343 INFO L93 Difference]: Finished difference Result 1018 states and 1334 transitions. [2021-11-25 19:59:07,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:59:07,344 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 113 [2021-11-25 19:59:07,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:59:07,352 INFO L225 Difference]: With dead ends: 1018 [2021-11-25 19:59:07,352 INFO L226 Difference]: Without dead ends: 1016 [2021-11-25 19:59:07,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:59:07,354 INFO L933 BasicCegarLoop]: 1047 mSDtfsCounter, 1121 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1125 SdHoareTripleChecker+Valid, 2236 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:59:07,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1125 Valid, 2236 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-11-25 19:59:07,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2021-11-25 19:59:07,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 1007. [2021-11-25 19:59:07,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 563 states have (on average 1.191829484902309) internal successors, (671), 587 states have internal predecessors, (671), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-25 19:59:07,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1325 transitions. [2021-11-25 19:59:07,438 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1325 transitions. Word has length 113 [2021-11-25 19:59:07,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:59:07,438 INFO L470 AbstractCegarLoop]: Abstraction has 1007 states and 1325 transitions. [2021-11-25 19:59:07,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-25 19:59:07,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1325 transitions. [2021-11-25 19:59:07,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-25 19:59:07,441 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:59:07,441 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:59:07,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-25 19:59:07,442 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-25 19:59:07,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:59:07,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1614493235, now seen corresponding path program 1 times [2021-11-25 19:59:07,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:59:07,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366591347] [2021-11-25 19:59:07,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:59:07,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:59:07,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:59:07,730 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 19:59:07,730 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:59:07,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366591347] [2021-11-25 19:59:07,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366591347] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:59:07,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:59:07,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:59:07,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24323873] [2021-11-25 19:59:07,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:59:07,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:59:07,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:59:07,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:59:07,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:59:07,733 INFO L87 Difference]: Start difference. First operand 1007 states and 1325 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-25 19:59:10,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:59:11,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:59:12,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:59:12,199 INFO L93 Difference]: Finished difference Result 1007 states and 1325 transitions. [2021-11-25 19:59:12,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:59:12,199 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 118 [2021-11-25 19:59:12,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:59:12,207 INFO L225 Difference]: With dead ends: 1007 [2021-11-25 19:59:12,207 INFO L226 Difference]: Without dead ends: 1005 [2021-11-25 19:59:12,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:59:12,209 INFO L933 BasicCegarLoop]: 996 mSDtfsCounter, 1132 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 1992 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:59:12,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1134 Valid, 1992 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-11-25 19:59:12,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2021-11-25 19:59:12,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 1005. [2021-11-25 19:59:12,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 562 states have (on average 1.190391459074733) internal successors, (669), 585 states have internal predecessors, (669), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-25 19:59:12,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1323 transitions. [2021-11-25 19:59:12,300 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1323 transitions. Word has length 118 [2021-11-25 19:59:12,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:59:12,301 INFO L470 AbstractCegarLoop]: Abstraction has 1005 states and 1323 transitions. [2021-11-25 19:59:12,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-25 19:59:12,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1323 transitions. [2021-11-25 19:59:12,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-25 19:59:12,304 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:59:12,304 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:59:12,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-25 19:59:12,305 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-25 19:59:12,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:59:12,305 INFO L85 PathProgramCache]: Analyzing trace with hash -165107209, now seen corresponding path program 1 times [2021-11-25 19:59:12,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:59:12,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180298322] [2021-11-25 19:59:12,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:59:12,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:59:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:59:12,728 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2021-11-25 19:59:12,729 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:59:12,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180298322] [2021-11-25 19:59:12,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180298322] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:59:12,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:59:12,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:59:12,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960955681] [2021-11-25 19:59:12,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:59:12,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:59:12,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:59:12,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:59:12,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:59:12,732 INFO L87 Difference]: Start difference. First operand 1005 states and 1323 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-25 19:59:15,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:59:16,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:59:16,219 INFO L93 Difference]: Finished difference Result 1824 states and 2294 transitions. [2021-11-25 19:59:16,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:59:16,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 148 [2021-11-25 19:59:16,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:59:16,231 INFO L225 Difference]: With dead ends: 1824 [2021-11-25 19:59:16,231 INFO L226 Difference]: Without dead ends: 1232 [2021-11-25 19:59:16,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:59:16,234 INFO L933 BasicCegarLoop]: 1049 mSDtfsCounter, 946 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 1425 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:59:16,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [947 Valid, 1425 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 249 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2021-11-25 19:59:16,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2021-11-25 19:59:16,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1213. [2021-11-25 19:59:16,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1213 states, 684 states have (on average 1.1871345029239766) internal successors, (812), 707 states have internal predecessors, (812), 378 states have call successors, (378), 138 states have call predecessors, (378), 137 states have return successors, (377), 374 states have call predecessors, (377), 376 states have call successors, (377) [2021-11-25 19:59:16,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 1567 transitions. [2021-11-25 19:59:16,348 INFO L78 Accepts]: Start accepts. Automaton has 1213 states and 1567 transitions. Word has length 148 [2021-11-25 19:59:16,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:59:16,348 INFO L470 AbstractCegarLoop]: Abstraction has 1213 states and 1567 transitions. [2021-11-25 19:59:16,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-25 19:59:16,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1213 states and 1567 transitions. [2021-11-25 19:59:16,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-25 19:59:16,351 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:59:16,351 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:59:16,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-25 19:59:16,352 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-25 19:59:16,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:59:16,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1140682789, now seen corresponding path program 1 times [2021-11-25 19:59:16,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:59:16,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802308336] [2021-11-25 19:59:16,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:59:16,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:59:16,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:59:16,689 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 19:59:16,690 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:59:16,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802308336] [2021-11-25 19:59:16,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802308336] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:59:16,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:59:16,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:59:16,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880876875] [2021-11-25 19:59:16,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:59:16,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:59:16,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:59:16,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:59:16,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:59:16,692 INFO L87 Difference]: Start difference. First operand 1213 states and 1567 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-25 19:59:19,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:59:20,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:59:20,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:59:20,962 INFO L93 Difference]: Finished difference Result 1213 states and 1567 transitions. [2021-11-25 19:59:20,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:59:20,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 123 [2021-11-25 19:59:20,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:59:20,970 INFO L225 Difference]: With dead ends: 1213 [2021-11-25 19:59:20,970 INFO L226 Difference]: Without dead ends: 1211 [2021-11-25 19:59:20,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:59:20,972 INFO L933 BasicCegarLoop]: 994 mSDtfsCounter, 1129 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 1988 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:59:20,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1131 Valid, 1988 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2021-11-25 19:59:20,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2021-11-25 19:59:21,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 1211. [2021-11-25 19:59:21,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1211 states, 683 states have (on average 1.1859443631039532) internal successors, (810), 705 states have internal predecessors, (810), 378 states have call successors, (378), 138 states have call predecessors, (378), 137 states have return successors, (377), 374 states have call predecessors, (377), 376 states have call successors, (377) [2021-11-25 19:59:21,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 1565 transitions. [2021-11-25 19:59:21,090 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 1565 transitions. Word has length 123 [2021-11-25 19:59:21,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:59:21,091 INFO L470 AbstractCegarLoop]: Abstraction has 1211 states and 1565 transitions. [2021-11-25 19:59:21,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-25 19:59:21,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 1565 transitions. [2021-11-25 19:59:21,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-25 19:59:21,094 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:59:21,094 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:59:21,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-25 19:59:21,094 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-25 19:59:21,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:59:21,095 INFO L85 PathProgramCache]: Analyzing trace with hash -2009046417, now seen corresponding path program 1 times [2021-11-25 19:59:21,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:59:21,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823877766] [2021-11-25 19:59:21,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:59:21,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:59:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:59:21,498 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2021-11-25 19:59:21,499 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:59:21,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823877766] [2021-11-25 19:59:21,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823877766] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:59:21,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852097619] [2021-11-25 19:59:21,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:59:21,500 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:59:21,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:59:21,501 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:59:21,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 19:59:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:59:23,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 5370 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 19:59:23,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:59:23,636 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2021-11-25 19:59:23,637 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:59:23,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852097619] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:59:23,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 19:59:23,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-11-25 19:59:23,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090310706] [2021-11-25 19:59:23,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:59:23,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:59:23,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:59:23,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:59:23,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:59:23,639 INFO L87 Difference]: Start difference. First operand 1211 states and 1565 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-25 19:59:25,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:59:25,378 INFO L93 Difference]: Finished difference Result 1815 states and 2286 transitions. [2021-11-25 19:59:25,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:59:25,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 153 [2021-11-25 19:59:25,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:59:25,386 INFO L225 Difference]: With dead ends: 1815 [2021-11-25 19:59:25,386 INFO L226 Difference]: Without dead ends: 1229 [2021-11-25 19:59:25,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:59:25,390 INFO L933 BasicCegarLoop]: 1002 mSDtfsCounter, 1086 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:59:25,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1086 Valid, 1052 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-25 19:59:25,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2021-11-25 19:59:25,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1227. [2021-11-25 19:59:25,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1227 states, 690 states have (on average 1.181159420289855) internal successors, (815), 712 states have internal predecessors, (815), 382 states have call successors, (382), 144 states have call predecessors, (382), 143 states have return successors, (381), 377 states have call predecessors, (381), 380 states have call successors, (381) [2021-11-25 19:59:25,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1578 transitions. [2021-11-25 19:59:25,511 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1578 transitions. Word has length 153 [2021-11-25 19:59:25,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:59:25,511 INFO L470 AbstractCegarLoop]: Abstraction has 1227 states and 1578 transitions. [2021-11-25 19:59:25,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-25 19:59:25,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1578 transitions. [2021-11-25 19:59:25,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-25 19:59:25,514 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:59:25,514 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:59:25,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 19:59:25,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-25 19:59:25,734 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-25 19:59:25,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:59:25,734 INFO L85 PathProgramCache]: Analyzing trace with hash -448572785, now seen corresponding path program 1 times [2021-11-25 19:59:25,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:59:25,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220324403] [2021-11-25 19:59:25,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:59:25,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:59:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:59:26,016 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 19:59:26,016 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:59:26,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220324403] [2021-11-25 19:59:26,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220324403] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:59:26,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:59:26,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:59:26,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744579530] [2021-11-25 19:59:26,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:59:26,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:59:26,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:59:26,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:59:26,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:59:26,020 INFO L87 Difference]: Start difference. First operand 1227 states and 1578 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-25 19:59:29,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:59:29,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:59:29,815 INFO L93 Difference]: Finished difference Result 1240 states and 1588 transitions. [2021-11-25 19:59:29,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:59:29,816 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 128 [2021-11-25 19:59:29,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:59:29,825 INFO L225 Difference]: With dead ends: 1240 [2021-11-25 19:59:29,825 INFO L226 Difference]: Without dead ends: 1238 [2021-11-25 19:59:29,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:59:29,827 INFO L933 BasicCegarLoop]: 1036 mSDtfsCounter, 1107 mSDsluCounter, 1379 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 2214 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:59:29,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1111 Valid, 2214 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2021-11-25 19:59:29,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2021-11-25 19:59:29,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 1232. [2021-11-25 19:59:29,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 693 states have (on average 1.178932178932179) internal successors, (817), 715 states have internal predecessors, (817), 383 states have call successors, (383), 145 states have call predecessors, (383), 145 states have return successors, (383), 378 states have call predecessors, (383), 381 states have call successors, (383) [2021-11-25 19:59:29,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 1583 transitions. [2021-11-25 19:59:29,939 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 1583 transitions. Word has length 128 [2021-11-25 19:59:29,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:59:29,940 INFO L470 AbstractCegarLoop]: Abstraction has 1232 states and 1583 transitions. [2021-11-25 19:59:29,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-25 19:59:29,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 1583 transitions. [2021-11-25 19:59:29,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-25 19:59:29,943 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:59:29,943 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:59:29,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-25 19:59:29,943 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-25 19:59:29,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:59:29,944 INFO L85 PathProgramCache]: Analyzing trace with hash 703783891, now seen corresponding path program 1 times [2021-11-25 19:59:29,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:59:29,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388384079] [2021-11-25 19:59:29,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:59:29,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:59:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:59:30,217 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 19:59:30,217 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:59:30,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388384079] [2021-11-25 19:59:30,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388384079] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:59:30,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:59:30,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:59:30,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388601446] [2021-11-25 19:59:30,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:59:30,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:59:30,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:59:30,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:59:30,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:59:30,220 INFO L87 Difference]: Start difference. First operand 1232 states and 1583 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-25 19:59:33,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:59:33,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:59:33,927 INFO L93 Difference]: Finished difference Result 1238 states and 1586 transitions. [2021-11-25 19:59:33,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:59:33,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 133 [2021-11-25 19:59:33,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:59:33,936 INFO L225 Difference]: With dead ends: 1238 [2021-11-25 19:59:33,936 INFO L226 Difference]: Without dead ends: 1236 [2021-11-25 19:59:33,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:59:33,938 INFO L933 BasicCegarLoop]: 1034 mSDtfsCounter, 1104 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 2210 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:59:33,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1108 Valid, 2210 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-11-25 19:59:33,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2021-11-25 19:59:34,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 1230. [2021-11-25 19:59:34,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 692 states have (on average 1.1777456647398843) internal successors, (815), 713 states have internal predecessors, (815), 383 states have call successors, (383), 145 states have call predecessors, (383), 145 states have return successors, (383), 378 states have call predecessors, (383), 381 states have call successors, (383) [2021-11-25 19:59:34,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1581 transitions. [2021-11-25 19:59:34,085 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1581 transitions. Word has length 133 [2021-11-25 19:59:34,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:59:34,085 INFO L470 AbstractCegarLoop]: Abstraction has 1230 states and 1581 transitions. [2021-11-25 19:59:34,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-25 19:59:34,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1581 transitions. [2021-11-25 19:59:34,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-25 19:59:34,088 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:59:34,088 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:59:34,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-25 19:59:34,089 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-25 19:59:34,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:59:34,089 INFO L85 PathProgramCache]: Analyzing trace with hash -2041113775, now seen corresponding path program 1 times [2021-11-25 19:59:34,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:59:34,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615848269] [2021-11-25 19:59:34,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:59:34,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:59:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:59:34,379 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 19:59:34,380 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:59:34,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615848269] [2021-11-25 19:59:34,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615848269] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:59:34,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:59:34,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:59:34,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224520552] [2021-11-25 19:59:34,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:59:34,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:59:34,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:59:34,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:59:34,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:59:34,382 INFO L87 Difference]: Start difference. First operand 1230 states and 1581 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-25 19:59:37,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:59:39,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:59:40,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:59:40,161 INFO L93 Difference]: Finished difference Result 1843 states and 2325 transitions. [2021-11-25 19:59:40,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:59:40,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 138 [2021-11-25 19:59:40,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:59:40,172 INFO L225 Difference]: With dead ends: 1843 [2021-11-25 19:59:40,172 INFO L226 Difference]: Without dead ends: 1841 [2021-11-25 19:59:40,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:59:40,174 INFO L933 BasicCegarLoop]: 1152 mSDtfsCounter, 899 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 3068 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:59:40,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [901 Valid, 3068 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2021-11-25 19:59:40,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1841 states. [2021-11-25 19:59:40,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1841 to 1809. [2021-11-25 19:59:40,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1809 states, 1015 states have (on average 1.167487684729064) internal successors, (1185), 1041 states have internal predecessors, (1185), 554 states have call successors, (554), 231 states have call predecessors, (554), 230 states have return successors, (557), 545 states have call predecessors, (557), 552 states have call successors, (557) [2021-11-25 19:59:40,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1809 states to 1809 states and 2296 transitions. [2021-11-25 19:59:40,327 INFO L78 Accepts]: Start accepts. Automaton has 1809 states and 2296 transitions. Word has length 138 [2021-11-25 19:59:40,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:59:40,328 INFO L470 AbstractCegarLoop]: Abstraction has 1809 states and 2296 transitions. [2021-11-25 19:59:40,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-25 19:59:40,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1809 states and 2296 transitions. [2021-11-25 19:59:40,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-25 19:59:40,331 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:59:40,331 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:59:40,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-25 19:59:40,332 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-25 19:59:40,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:59:40,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1797852913, now seen corresponding path program 1 times [2021-11-25 19:59:40,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:59:40,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533801333] [2021-11-25 19:59:40,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:59:40,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:59:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:59:40,647 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 19:59:40,647 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:59:40,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533801333] [2021-11-25 19:59:40,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533801333] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:59:40,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:59:40,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:59:40,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558780781] [2021-11-25 19:59:40,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:59:40,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:59:40,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:59:40,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:59:40,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:59:40,651 INFO L87 Difference]: Start difference. First operand 1809 states and 2296 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-25 19:59:43,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:59:44,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:59:44,307 INFO L93 Difference]: Finished difference Result 1818 states and 2302 transitions. [2021-11-25 19:59:44,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:59:44,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 143 [2021-11-25 19:59:44,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:59:44,320 INFO L225 Difference]: With dead ends: 1818 [2021-11-25 19:59:44,320 INFO L226 Difference]: Without dead ends: 1816 [2021-11-25 19:59:44,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:59:44,322 INFO L933 BasicCegarLoop]: 1032 mSDtfsCounter, 1100 mSDsluCounter, 1375 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 2206 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:59:44,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1104 Valid, 2206 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-11-25 19:59:44,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1816 states. [2021-11-25 19:59:44,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1816 to 1807. [2021-11-25 19:59:44,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1807 states, 1014 states have (on average 1.1666666666666667) internal successors, (1183), 1039 states have internal predecessors, (1183), 554 states have call successors, (554), 231 states have call predecessors, (554), 230 states have return successors, (557), 545 states have call predecessors, (557), 552 states have call successors, (557) [2021-11-25 19:59:44,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 2294 transitions. [2021-11-25 19:59:44,504 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 2294 transitions. Word has length 143 [2021-11-25 19:59:44,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:59:44,504 INFO L470 AbstractCegarLoop]: Abstraction has 1807 states and 2294 transitions. [2021-11-25 19:59:44,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-25 19:59:44,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 2294 transitions. [2021-11-25 19:59:44,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-25 19:59:44,507 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:59:44,508 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:59:44,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-25 19:59:44,508 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-25 19:59:44,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:59:44,509 INFO L85 PathProgramCache]: Analyzing trace with hash 594163738, now seen corresponding path program 1 times [2021-11-25 19:59:44,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:59:44,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101345462] [2021-11-25 19:59:44,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:59:44,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:59:44,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:59:45,098 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2021-11-25 19:59:45,099 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:59:45,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101345462] [2021-11-25 19:59:45,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101345462] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:59:45,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:59:45,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:59:45,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883472084] [2021-11-25 19:59:45,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:59:45,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:59:45,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:59:45,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:59:45,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:59:45,102 INFO L87 Difference]: Start difference. First operand 1807 states and 2294 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-25 19:59:48,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:59:50,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:59:50,808 INFO L93 Difference]: Finished difference Result 3727 states and 4810 transitions. [2021-11-25 19:59:50,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:59:50,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 177 [2021-11-25 19:59:50,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:59:50,835 INFO L225 Difference]: With dead ends: 3727 [2021-11-25 19:59:50,842 INFO L226 Difference]: Without dead ends: 1985 [2021-11-25 19:59:50,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:59:50,856 INFO L933 BasicCegarLoop]: 1116 mSDtfsCounter, 103 mSDsluCounter, 2394 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 3180 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:59:50,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 3180 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2021-11-25 19:59:50,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985 states. [2021-11-25 19:59:51,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985 to 1809. [2021-11-25 19:59:51,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1809 states, 1016 states have (on average 1.1663385826771653) internal successors, (1185), 1041 states have internal predecessors, (1185), 554 states have call successors, (554), 231 states have call predecessors, (554), 230 states have return successors, (557), 545 states have call predecessors, (557), 552 states have call successors, (557) [2021-11-25 19:59:51,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1809 states to 1809 states and 2296 transitions. [2021-11-25 19:59:51,058 INFO L78 Accepts]: Start accepts. Automaton has 1809 states and 2296 transitions. Word has length 177 [2021-11-25 19:59:51,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:59:51,059 INFO L470 AbstractCegarLoop]: Abstraction has 1809 states and 2296 transitions. [2021-11-25 19:59:51,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-25 19:59:51,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1809 states and 2296 transitions. [2021-11-25 19:59:51,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-25 19:59:51,062 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:59:51,062 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:59:51,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-25 19:59:51,062 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-25 19:59:51,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:59:51,063 INFO L85 PathProgramCache]: Analyzing trace with hash 2090989494, now seen corresponding path program 1 times [2021-11-25 19:59:51,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:59:51,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93670180] [2021-11-25 19:59:51,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:59:51,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:59:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:59:51,386 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 19:59:51,387 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:59:51,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93670180] [2021-11-25 19:59:51,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93670180] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:59:51,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:59:51,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:59:51,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985685419] [2021-11-25 19:59:51,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:59:51,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:59:51,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:59:51,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:59:51,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:59:51,391 INFO L87 Difference]: Start difference. First operand 1809 states and 2296 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-25 19:59:54,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:59:57,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:59:58,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:59:58,534 INFO L93 Difference]: Finished difference Result 2645 states and 3341 transitions. [2021-11-25 19:59:58,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:59:58,534 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 148 [2021-11-25 19:59:58,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:59:58,546 INFO L225 Difference]: With dead ends: 2645 [2021-11-25 19:59:58,546 INFO L226 Difference]: Without dead ends: 2483 [2021-11-25 19:59:58,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:59:58,552 INFO L933 BasicCegarLoop]: 1182 mSDtfsCounter, 792 mSDsluCounter, 2415 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 3278 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:59:58,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [792 Valid, 3278 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 499 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2021-11-25 19:59:58,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2483 states. [2021-11-25 19:59:58,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2483 to 2465. [2021-11-25 19:59:58,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2465 states, 1379 states have (on average 1.1595358955765047) internal successors, (1599), 1407 states have internal predecessors, (1599), 751 states have call successors, (751), 330 states have call predecessors, (751), 326 states have return successors, (773), 737 states have call predecessors, (773), 747 states have call successors, (773) [2021-11-25 19:59:58,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 3123 transitions. [2021-11-25 19:59:58,854 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 3123 transitions. Word has length 148 [2021-11-25 19:59:58,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:59:58,855 INFO L470 AbstractCegarLoop]: Abstraction has 2465 states and 3123 transitions. [2021-11-25 19:59:58,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-25 19:59:58,855 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 3123 transitions. [2021-11-25 19:59:58,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-11-25 19:59:58,857 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:59:58,857 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:59:58,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-25 19:59:58,858 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-25 19:59:58,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:59:58,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1696547477, now seen corresponding path program 1 times [2021-11-25 19:59:58,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:59:58,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450252435] [2021-11-25 19:59:58,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:59:58,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:59:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:59:59,285 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2021-11-25 19:59:59,286 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:59:59,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450252435] [2021-11-25 19:59:59,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450252435] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:59:59,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:59:59,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:59:59,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929679834] [2021-11-25 19:59:59,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:59:59,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:59:59,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:59:59,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:59:59,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:59:59,289 INFO L87 Difference]: Start difference. First operand 2465 states and 3123 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-25 20:00:02,449 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:00:03,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:00:03,328 INFO L93 Difference]: Finished difference Result 4858 states and 6151 transitions. [2021-11-25 20:00:03,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:00:03,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 194 [2021-11-25 20:00:03,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:00:03,338 INFO L225 Difference]: With dead ends: 4858 [2021-11-25 20:00:03,339 INFO L226 Difference]: Without dead ends: 2468 [2021-11-25 20:00:03,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:00:03,349 INFO L933 BasicCegarLoop]: 981 mSDtfsCounter, 1 mSDsluCounter, 2290 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2940 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:00:03,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 2940 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 508 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2021-11-25 20:00:03,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2468 states. [2021-11-25 20:00:03,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2468 to 2467. [2021-11-25 20:00:03,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2467 states, 1381 states have (on average 1.159304851556843) internal successors, (1601), 1409 states have internal predecessors, (1601), 751 states have call successors, (751), 330 states have call predecessors, (751), 326 states have return successors, (773), 737 states have call predecessors, (773), 747 states have call successors, (773) [2021-11-25 20:00:03,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 3125 transitions. [2021-11-25 20:00:03,685 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 3125 transitions. Word has length 194 [2021-11-25 20:00:03,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:00:03,686 INFO L470 AbstractCegarLoop]: Abstraction has 2467 states and 3125 transitions. [2021-11-25 20:00:03,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-25 20:00:03,687 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 3125 transitions. [2021-11-25 20:00:03,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-25 20:00:03,688 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:00:03,689 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 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] [2021-11-25 20:00:03,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-25 20:00:03,689 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-25 20:00:03,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:00:03,690 INFO L85 PathProgramCache]: Analyzing trace with hash 123659729, now seen corresponding path program 1 times [2021-11-25 20:00:03,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:00:03,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177005510] [2021-11-25 20:00:03,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:00:03,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:00:03,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:00:04,131 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2021-11-25 20:00:04,131 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:00:04,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177005510] [2021-11-25 20:00:04,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177005510] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:00:04,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069452424] [2021-11-25 20:00:04,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:00:04,132 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:00:04,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:00:04,142 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:00:04,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60f6e89-a0f7-42be-88f3-e94f849452c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 20:00:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:00:06,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 5811 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 20:00:06,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:00:06,531 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2021-11-25 20:00:06,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:00:06,975 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2021-11-25 20:00:06,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069452424] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:00:06,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1584680339] [2021-11-25 20:00:07,001 INFO L159 IcfgInterpreter]: Started Sifa with 95 locations of interest [2021-11-25 20:00:07,001 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:00:07,006 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:00:07,012 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:00:07,012 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:00:14,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-25 20:00:16,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-25 20:00:16,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-25 20:00:17,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-25 20:00:18,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-25 20:00:18,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-25 20:00:19,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-25 20:00:20,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-25 20:00:20,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-25 20:00:21,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-25 20:00:22,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-25 20:00:22,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-25 20:00:23,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-25 20:03:40,801 WARN L227 SmtUtils]: Spent 13.18s on a formula simplification. DAG size of input: 5414 DAG size of output: 5414 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-25 20:03:47,546 WARN L227 SmtUtils]: Spent 6.61s on a formula simplification that was a NOOP. DAG size: 5573 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-25 20:04:04,510 WARN L227 SmtUtils]: Spent 13.56s on a formula simplification. DAG size of input: 5414 DAG size of output: 5414 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-25 20:04:11,020 WARN L227 SmtUtils]: Spent 6.42s on a formula simplification that was a NOOP. DAG size: 5573 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-25 20:04:29,825 WARN L227 SmtUtils]: Spent 6.23s on a formula simplification that was a NOOP. DAG size: 5415 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:07:36,664 WARN L227 SmtUtils]: Spent 6.62s on a formula simplification that was a NOOP. DAG size: 5310 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:08:16,870 WARN L227 SmtUtils]: Spent 7.42s on a formula simplification that was a NOOP. DAG size: 5308 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:08:57,452 WARN L227 SmtUtils]: Spent 7.43s on a formula simplification that was a NOOP. DAG size: 5306 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:09:34,840 WARN L227 SmtUtils]: Spent 7.44s on a formula simplification that was a NOOP. DAG size: 5304 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:10:13,730 WARN L227 SmtUtils]: Spent 6.27s on a formula simplification that was a NOOP. DAG size: 5302 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:10:55,190 WARN L227 SmtUtils]: Spent 13.54s on a formula simplification. DAG size of input: 5303 DAG size of output: 5303 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)