./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 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/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_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f0d35ad3183ac446cae7457c51fa9452f8942f4b349e6e40633392db1dd8aa97 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:59:35,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:59:35,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:59:35,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:59:35,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:59:35,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:59:35,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:59:35,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:59:35,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:59:35,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:59:35,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:59:35,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:59:35,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:59:35,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:59:35,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:59:35,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:59:35,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:59:35,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:59:35,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:59:35,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:59:35,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:59:35,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:59:35,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:59:35,839 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:59:35,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:59:35,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:59:35,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:59:35,851 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:59:35,852 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:59:35,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:59:35,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:59:35,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:59:35,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:59:35,858 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:59:35,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:59:35,860 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:59:35,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:59:35,861 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:59:35,861 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:59:35,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:59:35,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:59:35,864 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 13:59:35,908 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:59:35,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:59:35,910 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:59:35,910 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:59:35,911 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:59:35,911 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:59:35,911 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:59:35,912 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:59:35,912 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:59:35,912 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:59:35,913 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:59:35,913 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:59:35,914 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:59:35,914 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:59:35,914 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:59:35,915 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:59:35,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:59:35,916 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:59:35,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:59:35,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:59:35,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:59:35,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:59:35,918 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:59:35,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:59:35,918 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:59:35,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:59:35,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:59:35,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:59:35,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:59:35,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:59:35,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:59:35,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:59:35,922 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:59:35,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:59:35,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:59:35,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:59:35,923 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:59:35,924 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0d35ad3183ac446cae7457c51fa9452f8942f4b349e6e40633392db1dd8aa97 [2021-11-19 13:59:36,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:59:36,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:59:36,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:59:36,259 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:59:36,260 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:59:36,261 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i [2021-11-19 13:59:36,333 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/data/cd3895f24/d6b882565f4b4fe98957b47c3cc66c1b/FLAGc1f313052 [2021-11-19 13:59:37,375 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:59:37,376 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i [2021-11-19 13:59:37,451 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/data/cd3895f24/d6b882565f4b4fe98957b47c3cc66c1b/FLAGc1f313052 [2021-11-19 13:59:37,700 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/data/cd3895f24/d6b882565f4b4fe98957b47c3cc66c1b [2021-11-19 13:59:37,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:59:37,702 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:59:37,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:59:37,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:59:37,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:59:37,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:59:37" (1/1) ... [2021-11-19 13:59:37,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3de28a53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:37, skipping insertion in model container [2021-11-19 13:59:37,724 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:59:37" (1/1) ... [2021-11-19 13:59:37,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:59:37,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:59:39,576 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:39,991 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:59:41,866 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385539,385552] [2021-11-19 13:59:41,870 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385684,385697] [2021-11-19 13:59:41,871 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385830,385843] [2021-11-19 13:59:41,876 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385995,386008] [2021-11-19 13:59:41,877 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386153,386166] [2021-11-19 13:59:41,877 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386311,386324] [2021-11-19 13:59:41,878 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386469,386482] [2021-11-19 13:59:41,878 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386629,386642] [2021-11-19 13:59:41,879 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386788,386801] [2021-11-19 13:59:41,879 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386927,386940] [2021-11-19 13:59:41,880 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387069,387082] [2021-11-19 13:59:41,880 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387218,387231] [2021-11-19 13:59:41,881 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387357,387370] [2021-11-19 13:59:41,881 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387512,387525] [2021-11-19 13:59:41,882 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387672,387685] [2021-11-19 13:59:41,882 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387823,387836] [2021-11-19 13:59:41,883 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387974,387987] [2021-11-19 13:59:41,883 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388126,388139] [2021-11-19 13:59:41,883 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388275,388288] [2021-11-19 13:59:41,884 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388423,388436] [2021-11-19 13:59:41,884 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388580,388593] [2021-11-19 13:59:41,885 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388729,388742] [2021-11-19 13:59:41,885 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388885,388898] [2021-11-19 13:59:41,886 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389038,389051] [2021-11-19 13:59:41,886 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389184,389197] [2021-11-19 13:59:41,887 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389327,389340] [2021-11-19 13:59:41,887 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389479,389492] [2021-11-19 13:59:41,888 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389625,389638] [2021-11-19 13:59:41,888 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389770,389783] [2021-11-19 13:59:41,889 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389924,389937] [2021-11-19 13:59:41,889 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390075,390088] [2021-11-19 13:59:41,889 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390230,390243] [2021-11-19 13:59:41,890 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390382,390395] [2021-11-19 13:59:41,890 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390537,390550] [2021-11-19 13:59:41,891 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390701,390714] [2021-11-19 13:59:41,891 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390857,390870] [2021-11-19 13:59:41,892 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391021,391034] [2021-11-19 13:59:41,892 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391163,391176] [2021-11-19 13:59:41,893 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391321,391334] [2021-11-19 13:59:41,893 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391488,391501] [2021-11-19 13:59:41,894 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391647,391660] [2021-11-19 13:59:41,894 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391806,391819] [2021-11-19 13:59:41,895 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391955,391968] [2021-11-19 13:59:41,895 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392102,392115] [2021-11-19 13:59:41,896 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392241,392254] [2021-11-19 13:59:41,896 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392404,392417] [2021-11-19 13:59:41,897 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392570,392583] [2021-11-19 13:59:41,897 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392734,392747] [2021-11-19 13:59:41,897 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392899,392912] [2021-11-19 13:59:41,898 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393064,393077] [2021-11-19 13:59:41,898 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393230,393243] [2021-11-19 13:59:41,899 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393395,393408] [2021-11-19 13:59:41,899 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393562,393575] [2021-11-19 13:59:41,900 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393722,393735] [2021-11-19 13:59:41,901 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393884,393897] [2021-11-19 13:59:41,901 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394043,394056] [2021-11-19 13:59:41,902 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394189,394202] [2021-11-19 13:59:41,902 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394332,394345] [2021-11-19 13:59:41,903 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394476,394489] [2021-11-19 13:59:41,903 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394619,394632] [2021-11-19 13:59:41,904 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394763,394776] [2021-11-19 13:59:41,904 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394904,394917] [2021-11-19 13:59:41,905 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395042,395055] [2021-11-19 13:59:41,905 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395200,395213] [2021-11-19 13:59:41,906 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395359,395372] [2021-11-19 13:59:41,906 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395515,395528] [2021-11-19 13:59:41,906 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395664,395677] [2021-11-19 13:59:41,907 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395816,395829] [2021-11-19 13:59:41,907 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395967,395980] [2021-11-19 13:59:41,908 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396116,396129] [2021-11-19 13:59:41,908 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396268,396281] [2021-11-19 13:59:41,909 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396416,396429] [2021-11-19 13:59:41,909 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396569,396582] [2021-11-19 13:59:41,910 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396720,396733] [2021-11-19 13:59:41,910 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396870,396883] [2021-11-19 13:59:41,911 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397017,397030] [2021-11-19 13:59:41,911 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397168,397181] [2021-11-19 13:59:41,912 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397319,397332] [2021-11-19 13:59:41,912 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397467,397480] [2021-11-19 13:59:41,913 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397633,397646] [2021-11-19 13:59:41,913 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397802,397815] [2021-11-19 13:59:41,914 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397969,397982] [2021-11-19 13:59:41,935 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398137,398150] [2021-11-19 13:59:41,936 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398287,398300] [2021-11-19 13:59:41,936 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398434,398447] [2021-11-19 13:59:41,937 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398595,398608] [2021-11-19 13:59:41,937 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398765,398778] [2021-11-19 13:59:41,937 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398927,398940] [2021-11-19 13:59:41,959 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:59:42,007 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 13:59:42,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@27034c52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:42, skipping insertion in model container [2021-11-19 13:59:42,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:59:42,009 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:59:42,010 INFO L158 Benchmark]: Toolchain (without parser) took 4306.91ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 65.2MB in the beginning and 69.1MB in the end (delta: -4.0MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. [2021-11-19 13:59:42,011 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 98.6MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:59:42,012 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4289.81ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 65.2MB in the beginning and 69.1MB in the end (delta: -4.0MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. [2021-11-19 13:59:42,013 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 98.6MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4289.81ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 65.2MB in the beginning and 69.1MB in the end (delta: -4.0MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6614]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/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_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f0d35ad3183ac446cae7457c51fa9452f8942f4b349e6e40633392db1dd8aa97 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:59:44,131 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:59:44,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:59:44,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:59:44,192 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:59:44,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:59:44,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:59:44,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:59:44,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:59:44,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:59:44,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:59:44,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:59:44,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:59:44,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:59:44,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:59:44,227 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:59:44,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:59:44,232 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:59:44,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:59:44,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:59:44,247 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:59:44,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:59:44,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:59:44,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:59:44,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:59:44,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:59:44,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:59:44,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:59:44,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:59:44,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:59:44,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:59:44,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:59:44,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:59:44,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:59:44,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:59:44,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:59:44,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:59:44,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:59:44,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:59:44,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:59:44,278 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:59:44,279 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 13:59:44,321 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:59:44,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:59:44,323 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:59:44,323 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:59:44,323 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:59:44,323 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:59:44,323 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:59:44,324 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:59:44,324 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:59:44,324 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:59:44,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:59:44,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:59:44,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:59:44,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:59:44,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:59:44,327 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:59:44,327 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:59:44,328 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:59:44,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:59:44,328 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:59:44,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:59:44,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:59:44,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:59:44,329 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:59:44,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:59:44,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:59:44,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:59:44,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:59:44,330 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:59:44,330 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:59:44,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:59:44,330 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:59:44,330 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:59:44,331 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0d35ad3183ac446cae7457c51fa9452f8942f4b349e6e40633392db1dd8aa97 [2021-11-19 13:59:44,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:59:44,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:59:44,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:59:44,776 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:59:44,777 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:59:44,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i [2021-11-19 13:59:44,870 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/data/4d6208006/9aeed7fe422942eabb77140a495adae5/FLAGd4ed18dbb [2021-11-19 13:59:45,909 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:59:45,910 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i [2021-11-19 13:59:45,980 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/data/4d6208006/9aeed7fe422942eabb77140a495adae5/FLAGd4ed18dbb [2021-11-19 13:59:46,241 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/data/4d6208006/9aeed7fe422942eabb77140a495adae5 [2021-11-19 13:59:46,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:59:46,245 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:59:46,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:59:46,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:59:46,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:59:46,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:59:46" (1/1) ... [2021-11-19 13:59:46,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e820907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:46, skipping insertion in model container [2021-11-19 13:59:46,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:59:46" (1/1) ... [2021-11-19 13:59:46,259 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:59:46,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:59:50,691 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385539,385552] [2021-11-19 13:59:50,694 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385684,385697] [2021-11-19 13:59:50,694 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385830,385843] [2021-11-19 13:59:50,695 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385995,386008] [2021-11-19 13:59:50,695 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386153,386166] [2021-11-19 13:59:50,696 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386311,386324] [2021-11-19 13:59:50,696 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386469,386482] [2021-11-19 13:59:50,697 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386629,386642] [2021-11-19 13:59:50,697 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386788,386801] [2021-11-19 13:59:50,698 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386927,386940] [2021-11-19 13:59:50,698 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387069,387082] [2021-11-19 13:59:50,699 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387218,387231] [2021-11-19 13:59:50,699 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387357,387370] [2021-11-19 13:59:50,700 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387512,387525] [2021-11-19 13:59:50,700 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387672,387685] [2021-11-19 13:59:50,701 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387823,387836] [2021-11-19 13:59:50,701 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387974,387987] [2021-11-19 13:59:50,702 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388126,388139] [2021-11-19 13:59:50,702 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388275,388288] [2021-11-19 13:59:50,703 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388423,388436] [2021-11-19 13:59:50,703 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388580,388593] [2021-11-19 13:59:50,704 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388729,388742] [2021-11-19 13:59:50,704 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388885,388898] [2021-11-19 13:59:50,705 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389038,389051] [2021-11-19 13:59:50,705 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389184,389197] [2021-11-19 13:59:50,706 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389327,389340] [2021-11-19 13:59:50,706 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389479,389492] [2021-11-19 13:59:50,707 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389625,389638] [2021-11-19 13:59:50,707 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389770,389783] [2021-11-19 13:59:50,708 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389924,389937] [2021-11-19 13:59:50,708 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390075,390088] [2021-11-19 13:59:50,708 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390230,390243] [2021-11-19 13:59:50,709 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390382,390395] [2021-11-19 13:59:50,709 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390537,390550] [2021-11-19 13:59:50,710 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390701,390714] [2021-11-19 13:59:50,710 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390857,390870] [2021-11-19 13:59:50,712 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391021,391034] [2021-11-19 13:59:50,713 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391163,391176] [2021-11-19 13:59:50,714 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391321,391334] [2021-11-19 13:59:50,714 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391488,391501] [2021-11-19 13:59:50,714 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391647,391660] [2021-11-19 13:59:50,715 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391806,391819] [2021-11-19 13:59:50,717 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391955,391968] [2021-11-19 13:59:50,717 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392102,392115] [2021-11-19 13:59:50,718 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392241,392254] [2021-11-19 13:59:50,718 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392404,392417] [2021-11-19 13:59:50,719 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392570,392583] [2021-11-19 13:59:50,720 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392734,392747] [2021-11-19 13:59:50,721 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392899,392912] [2021-11-19 13:59:50,722 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393064,393077] [2021-11-19 13:59:50,722 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393230,393243] [2021-11-19 13:59:50,722 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393395,393408] [2021-11-19 13:59:50,723 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393562,393575] [2021-11-19 13:59:50,723 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393722,393735] [2021-11-19 13:59:50,725 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393884,393897] [2021-11-19 13:59:50,726 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394043,394056] [2021-11-19 13:59:50,726 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394189,394202] [2021-11-19 13:59:50,727 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394332,394345] [2021-11-19 13:59:50,727 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394476,394489] [2021-11-19 13:59:50,728 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394619,394632] [2021-11-19 13:59:50,728 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394763,394776] [2021-11-19 13:59:50,729 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394904,394917] [2021-11-19 13:59:50,729 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395042,395055] [2021-11-19 13:59:50,730 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395200,395213] [2021-11-19 13:59:50,730 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395359,395372] [2021-11-19 13:59:50,731 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395515,395528] [2021-11-19 13:59:50,731 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395664,395677] [2021-11-19 13:59:50,732 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395816,395829] [2021-11-19 13:59:50,733 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395967,395980] [2021-11-19 13:59:50,733 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396116,396129] [2021-11-19 13:59:50,734 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396268,396281] [2021-11-19 13:59:50,734 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396416,396429] [2021-11-19 13:59:50,735 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396569,396582] [2021-11-19 13:59:50,735 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396720,396733] [2021-11-19 13:59:50,735 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396870,396883] [2021-11-19 13:59:50,736 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397017,397030] [2021-11-19 13:59:50,736 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397168,397181] [2021-11-19 13:59:50,737 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397319,397332] [2021-11-19 13:59:50,737 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397467,397480] [2021-11-19 13:59:50,738 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397633,397646] [2021-11-19 13:59:50,738 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397802,397815] [2021-11-19 13:59:50,739 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397969,397982] [2021-11-19 13:59:50,739 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398137,398150] [2021-11-19 13:59:50,740 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398287,398300] [2021-11-19 13:59:50,740 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398434,398447] [2021-11-19 13:59:50,741 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398595,398608] [2021-11-19 13:59:50,741 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398765,398778] [2021-11-19 13:59:50,742 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398927,398940] [2021-11-19 13:59:50,764 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:59:50,876 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:59:50,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:59:51,334 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385539,385552] [2021-11-19 13:59:51,335 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385684,385697] [2021-11-19 13:59:51,335 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385830,385843] [2021-11-19 13:59:51,336 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385995,386008] [2021-11-19 13:59:51,337 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386153,386166] [2021-11-19 13:59:51,338 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386311,386324] [2021-11-19 13:59:51,339 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386469,386482] [2021-11-19 13:59:51,339 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386629,386642] [2021-11-19 13:59:51,339 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386788,386801] [2021-11-19 13:59:51,344 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386927,386940] [2021-11-19 13:59:51,344 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387069,387082] [2021-11-19 13:59:51,345 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387218,387231] [2021-11-19 13:59:51,345 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387357,387370] [2021-11-19 13:59:51,346 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387512,387525] [2021-11-19 13:59:51,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387672,387685] [2021-11-19 13:59:51,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387823,387836] [2021-11-19 13:59:51,348 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387974,387987] [2021-11-19 13:59:51,348 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388126,388139] [2021-11-19 13:59:51,349 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388275,388288] [2021-11-19 13:59:51,349 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388423,388436] [2021-11-19 13:59:51,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388580,388593] [2021-11-19 13:59:51,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388729,388742] [2021-11-19 13:59:51,351 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388885,388898] [2021-11-19 13:59:51,351 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389038,389051] [2021-11-19 13:59:51,352 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389184,389197] [2021-11-19 13:59:51,352 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389327,389340] [2021-11-19 13:59:51,352 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389479,389492] [2021-11-19 13:59:51,353 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389625,389638] [2021-11-19 13:59:51,353 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389770,389783] [2021-11-19 13:59:51,354 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389924,389937] [2021-11-19 13:59:51,354 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390075,390088] [2021-11-19 13:59:51,355 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390230,390243] [2021-11-19 13:59:51,356 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390382,390395] [2021-11-19 13:59:51,356 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390537,390550] [2021-11-19 13:59:51,357 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390701,390714] [2021-11-19 13:59:51,357 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390857,390870] [2021-11-19 13:59:51,358 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391021,391034] [2021-11-19 13:59:51,358 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391163,391176] [2021-11-19 13:59:51,359 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391321,391334] [2021-11-19 13:59:51,359 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391488,391501] [2021-11-19 13:59:51,360 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391647,391660] [2021-11-19 13:59:51,360 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391806,391819] [2021-11-19 13:59:51,361 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391955,391968] [2021-11-19 13:59:51,361 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392102,392115] [2021-11-19 13:59:51,361 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392241,392254] [2021-11-19 13:59:51,362 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392404,392417] [2021-11-19 13:59:51,362 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392570,392583] [2021-11-19 13:59:51,363 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392734,392747] [2021-11-19 13:59:51,363 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392899,392912] [2021-11-19 13:59:51,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393064,393077] [2021-11-19 13:59:51,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393230,393243] [2021-11-19 13:59:51,365 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393395,393408] [2021-11-19 13:59:51,365 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393562,393575] [2021-11-19 13:59:51,366 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393722,393735] [2021-11-19 13:59:51,367 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393884,393897] [2021-11-19 13:59:51,367 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394043,394056] [2021-11-19 13:59:51,368 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394189,394202] [2021-11-19 13:59:51,368 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394332,394345] [2021-11-19 13:59:51,368 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394476,394489] [2021-11-19 13:59:51,369 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394619,394632] [2021-11-19 13:59:51,369 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394763,394776] [2021-11-19 13:59:51,370 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394904,394917] [2021-11-19 13:59:51,370 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395042,395055] [2021-11-19 13:59:51,371 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395200,395213] [2021-11-19 13:59:51,371 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395359,395372] [2021-11-19 13:59:51,372 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395515,395528] [2021-11-19 13:59:51,372 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395664,395677] [2021-11-19 13:59:51,373 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395816,395829] [2021-11-19 13:59:51,373 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395967,395980] [2021-11-19 13:59:51,373 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396116,396129] [2021-11-19 13:59:51,374 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396268,396281] [2021-11-19 13:59:51,374 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396416,396429] [2021-11-19 13:59:51,375 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396569,396582] [2021-11-19 13:59:51,375 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396720,396733] [2021-11-19 13:59:51,376 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396870,396883] [2021-11-19 13:59:51,376 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397017,397030] [2021-11-19 13:59:51,377 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397168,397181] [2021-11-19 13:59:51,377 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397319,397332] [2021-11-19 13:59:51,377 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397467,397480] [2021-11-19 13:59:51,378 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397633,397646] [2021-11-19 13:59:51,382 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397802,397815] [2021-11-19 13:59:51,384 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397969,397982] [2021-11-19 13:59:51,384 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398137,398150] [2021-11-19 13:59:51,385 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398287,398300] [2021-11-19 13:59:51,385 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398434,398447] [2021-11-19 13:59:51,386 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398595,398608] [2021-11-19 13:59:51,386 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398765,398778] [2021-11-19 13:59:51,387 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398927,398940] [2021-11-19 13:59:51,393 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:59:51,441 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:59:51,844 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385539,385552] [2021-11-19 13:59:51,845 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385684,385697] [2021-11-19 13:59:51,845 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385830,385843] [2021-11-19 13:59:51,845 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385995,386008] [2021-11-19 13:59:51,846 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386153,386166] [2021-11-19 13:59:51,846 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386311,386324] [2021-11-19 13:59:51,846 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386469,386482] [2021-11-19 13:59:51,847 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386629,386642] [2021-11-19 13:59:51,847 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386788,386801] [2021-11-19 13:59:51,847 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386927,386940] [2021-11-19 13:59:51,848 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387069,387082] [2021-11-19 13:59:51,848 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387218,387231] [2021-11-19 13:59:51,849 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387357,387370] [2021-11-19 13:59:51,849 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387512,387525] [2021-11-19 13:59:51,850 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387672,387685] [2021-11-19 13:59:51,850 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387823,387836] [2021-11-19 13:59:51,851 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387974,387987] [2021-11-19 13:59:51,851 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388126,388139] [2021-11-19 13:59:51,851 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388275,388288] [2021-11-19 13:59:51,852 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388423,388436] [2021-11-19 13:59:51,852 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388580,388593] [2021-11-19 13:59:51,852 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388729,388742] [2021-11-19 13:59:51,853 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388885,388898] [2021-11-19 13:59:51,854 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389038,389051] [2021-11-19 13:59:51,854 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389184,389197] [2021-11-19 13:59:51,854 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389327,389340] [2021-11-19 13:59:51,856 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389479,389492] [2021-11-19 13:59:51,857 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389625,389638] [2021-11-19 13:59:51,857 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389770,389783] [2021-11-19 13:59:51,857 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389924,389937] [2021-11-19 13:59:51,858 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390075,390088] [2021-11-19 13:59:51,858 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390230,390243] [2021-11-19 13:59:51,858 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390382,390395] [2021-11-19 13:59:51,859 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390537,390550] [2021-11-19 13:59:51,859 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390701,390714] [2021-11-19 13:59:51,859 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390857,390870] [2021-11-19 13:59:51,860 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391021,391034] [2021-11-19 13:59:51,860 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391163,391176] [2021-11-19 13:59:51,860 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391321,391334] [2021-11-19 13:59:51,861 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391488,391501] [2021-11-19 13:59:51,861 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391647,391660] [2021-11-19 13:59:51,862 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391806,391819] [2021-11-19 13:59:51,862 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391955,391968] [2021-11-19 13:59:51,864 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392102,392115] [2021-11-19 13:59:51,865 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392241,392254] [2021-11-19 13:59:51,865 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392404,392417] [2021-11-19 13:59:51,865 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392570,392583] [2021-11-19 13:59:51,866 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392734,392747] [2021-11-19 13:59:51,866 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392899,392912] [2021-11-19 13:59:51,866 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393064,393077] [2021-11-19 13:59:51,867 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393230,393243] [2021-11-19 13:59:51,868 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393395,393408] [2021-11-19 13:59:51,868 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393562,393575] [2021-11-19 13:59:51,868 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393722,393735] [2021-11-19 13:59:51,869 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393884,393897] [2021-11-19 13:59:51,870 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394043,394056] [2021-11-19 13:59:51,870 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394189,394202] [2021-11-19 13:59:51,871 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394332,394345] [2021-11-19 13:59:51,871 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394476,394489] [2021-11-19 13:59:51,871 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394619,394632] [2021-11-19 13:59:51,871 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394763,394776] [2021-11-19 13:59:51,872 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394904,394917] [2021-11-19 13:59:51,872 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395042,395055] [2021-11-19 13:59:51,872 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395200,395213] [2021-11-19 13:59:51,873 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395359,395372] [2021-11-19 13:59:51,873 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395515,395528] [2021-11-19 13:59:51,874 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395664,395677] [2021-11-19 13:59:51,874 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395816,395829] [2021-11-19 13:59:51,874 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395967,395980] [2021-11-19 13:59:51,875 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396116,396129] [2021-11-19 13:59:51,875 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396268,396281] [2021-11-19 13:59:51,875 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396416,396429] [2021-11-19 13:59:51,876 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396569,396582] [2021-11-19 13:59:51,876 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396720,396733] [2021-11-19 13:59:51,876 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396870,396883] [2021-11-19 13:59:51,877 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397017,397030] [2021-11-19 13:59:51,877 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397168,397181] [2021-11-19 13:59:51,878 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397319,397332] [2021-11-19 13:59:51,878 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397467,397480] [2021-11-19 13:59:51,883 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397633,397646] [2021-11-19 13:59:51,890 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397802,397815] [2021-11-19 13:59:51,891 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397969,397982] [2021-11-19 13:59:51,891 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398137,398150] [2021-11-19 13:59:51,891 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398287,398300] [2021-11-19 13:59:51,892 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398434,398447] [2021-11-19 13:59:51,892 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398595,398608] [2021-11-19 13:59:51,892 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398765,398778] [2021-11-19 13:59:51,893 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_069cf977-dd9d-4976-8bfb-cec3f598fc36/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398927,398940] [2021-11-19 13:59:51,897 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:59:52,251 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:59:52,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:52 WrapperNode [2021-11-19 13:59:52,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:59:52,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:59:52,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:59:52,253 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:59:52,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:52" (1/1) ... [2021-11-19 13:59:52,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:52" (1/1) ... [2021-11-19 13:59:52,645 INFO L137 Inliner]: procedures = 631, calls = 2803, calls flagged for inlining = 287, calls inlined = 187, statements flattened = 4643 [2021-11-19 13:59:52,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:59:52,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:59:52,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:59:52,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:59:52,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:52" (1/1) ... [2021-11-19 13:59:52,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:52" (1/1) ... [2021-11-19 13:59:52,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:52" (1/1) ... [2021-11-19 13:59:52,712 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:52" (1/1) ... [2021-11-19 13:59:52,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:52" (1/1) ... [2021-11-19 13:59:52,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:52" (1/1) ... [2021-11-19 13:59:53,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:52" (1/1) ... [2021-11-19 13:59:53,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:59:53,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:59:53,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:59:53,068 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:59:53,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:52" (1/1) ... [2021-11-19 13:59:53,076 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:59:53,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:59:53,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:59:53,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:59:53,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-19 13:59:53,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-19 13:59:53,152 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 13:59:53,152 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 13:59:53,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 13:59:53,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 13:59:53,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_device_lock_of_kaweth_device [2021-11-19 13:59:53,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_device_lock_of_kaweth_device [2021-11-19 13:59:53,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-19 13:59:53,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-19 13:59:53,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2021-11-19 13:59:53,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2021-11-19 13:59:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 13:59:53,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 13:59:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_open [2021-11-19 13:59:53,154 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_open [2021-11-19 13:59:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-19 13:59:53,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-19 13:59:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-19 13:59:53,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-19 13:59:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-19 13:59:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_resume [2021-11-19 13:59:53,155 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_resume [2021-11-19 13:59:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 13:59:53,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 13:59:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 13:59:53,155 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 13:59:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 13:59:53,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 13:59:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-19 13:59:53,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-19 13:59:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:59:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 13:59:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:59:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 13:59:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 13:59:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-19 13:59:53,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-19 13:59:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 13:59:53,157 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 13:59:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_resubmit_rx_urb [2021-11-19 13:59:53,157 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_resubmit_rx_urb [2021-11-19 13:59:53,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-19 13:59:53,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-19 13:59:53,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 13:59:53,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 13:59:53,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-19 13:59:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-19 13:59:53,159 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-11-19 13:59:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-11-19 13:59:53,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-19 13:59:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-19 13:59:53,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-19 13:59:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-19 13:59:53,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 13:59:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 13:59:53,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-19 13:59:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-19 13:59:53,160 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-19 13:59:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-19 13:59:53,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-19 13:59:53,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-19 13:59:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_close [2021-11-19 13:59:53,161 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_close [2021-11-19 13:59:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-19 13:59:53,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-19 13:59:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_129 [2021-11-19 13:59:53,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_129 [2021-11-19 13:59:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_download_firmware [2021-11-19 13:59:53,162 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_download_firmware [2021-11-19 13:59:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-19 13:59:53,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-19 13:59:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:59:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:59:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 13:59:53,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 13:59:53,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:59:53,163 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 13:59:53,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 13:59:53,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 13:59:53,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 13:59:53,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-19 13:59:53,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-19 13:59:53,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-19 13:59:53,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-19 13:59:53,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 13:59:53,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 13:59:53,164 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-11-19 13:59:53,164 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-11-19 13:59:53,164 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-19 13:59:53,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-19 13:59:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 13:59:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_tx_timeout [2021-11-19 13:59:53,165 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_tx_timeout [2021-11-19 13:59:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:59:53,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:59:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:59:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-11-19 13:59:53,166 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-11-19 13:59:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 13:59:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:59:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 13:59:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 13:59:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 13:59:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 13:59:53,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 13:59:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 13:59:53,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 13:59:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_133 [2021-11-19 13:59:53,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_133 [2021-11-19 13:59:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-11-19 13:59:53,169 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-11-19 13:59:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_async_set_rx_mode [2021-11-19 13:59:53,169 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_async_set_rx_mode [2021-11-19 13:59:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_device_lock_of_kaweth_device [2021-11-19 13:59:53,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_device_lock_of_kaweth_device [2021-11-19 13:59:53,170 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 13:59:53,170 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 13:59:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-19 13:59:53,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-19 13:59:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-19 13:59:53,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-19 13:59:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-19 13:59:53,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-19 13:59:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-19 13:59:53,172 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-19 13:59:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:59:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 13:59:53,172 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 13:59:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-19 13:59:53,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-19 13:59:53,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:59:53,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_free_coherent [2021-11-19 13:59:53,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_free_coherent [2021-11-19 13:59:53,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 13:59:53,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 13:59:53,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 13:59:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:59:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 13:59:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-19 13:59:53,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-19 13:59:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 13:59:53,174 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 13:59:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-19 13:59:53,175 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-19 13:59:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 13:59:53,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 13:59:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-11-19 13:59:53,175 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-11-19 13:59:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-19 13:59:53,175 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-19 13:59:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-19 13:59:53,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-19 13:59:53,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-11-19 13:59:53,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-11-19 13:59:53,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-19 13:59:53,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-19 13:59:53,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-19 13:59:53,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-19 13:59:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 13:59:53,177 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 13:59:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_set_rx_mode [2021-11-19 13:59:53,177 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_set_rx_mode [2021-11-19 13:59:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-19 13:59:53,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-19 13:59:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-19 13:59:53,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-19 13:59:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 13:59:53,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 13:59:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-19 13:59:53,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-19 13:59:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-19 13:59:53,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-19 13:59:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 13:59:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 13:59:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 13:59:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 13:59:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 13:59:53,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 13:59:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-19 13:59:53,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-19 13:59:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_resubmit_int_urb [2021-11-19 13:59:53,180 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_resubmit_int_urb [2021-11-19 13:59:53,180 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_control [2021-11-19 13:59:53,180 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_control [2021-11-19 13:59:53,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 13:59:53,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 13:59:53,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-19 13:59:53,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-19 13:59:53,181 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-19 13:59:53,181 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_kill_urbs [2021-11-19 13:59:53,181 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_kill_urbs [2021-11-19 13:59:53,181 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_disconnect [2021-11-19 13:59:53,181 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_disconnect [2021-11-19 13:59:53,181 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-19 13:59:53,181 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-19 13:59:53,937 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:59:53,942 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:59:56,223 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:00:35,605 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:00:35,632 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:00:35,632 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:00:35,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:00:35 BoogieIcfgContainer [2021-11-19 14:00:35,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:00:35,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:00:35,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:00:35,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:00:35,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:59:46" (1/3) ... [2021-11-19 14:00:35,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2604ee7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:00:35, skipping insertion in model container [2021-11-19 14:00:35,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:59:52" (2/3) ... [2021-11-19 14:00:35,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2604ee7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:00:35, skipping insertion in model container [2021-11-19 14:00:35,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:00:35" (3/3) ... [2021-11-19 14:00:35,645 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i [2021-11-19 14:00:35,650 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:00:35,651 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-11-19 14:00:35,776 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:00:35,786 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:00:35,786 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-11-19 14:00:35,855 INFO L276 IsEmpty]: Start isEmpty. Operand has 1202 states, 791 states have (on average 1.2414664981036663) internal successors, (982), 831 states have internal predecessors, (982), 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) [2021-11-19 14:00:35,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-19 14:00:35,867 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:35,868 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:35,868 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)] === [2021-11-19 14:00:35,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:35,874 INFO L85 PathProgramCache]: Analyzing trace with hash 385353035, now seen corresponding path program 1 times [2021-11-19 14:00:35,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:35,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1890498469] [2021-11-19 14:00:35,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:35,893 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:35,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:35,898 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:35,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:00:37,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:37,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 2096 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:00:37,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:37,862 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-19 14:00:37,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:38,273 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-19 14:00:38,274 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:38,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1890498469] [2021-11-19 14:00:38,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1890498469] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:00:38,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:00:38,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2021-11-19 14:00:38,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831451274] [2021-11-19 14:00:38,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:38,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:00:38,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:38,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:00:38,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:00:38,325 INFO L87 Difference]: Start difference. First operand has 1202 states, 791 states have (on average 1.2414664981036663) internal successors, (982), 831 states have internal predecessors, (982), 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 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-19 14:00:40,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:40,116 INFO L93 Difference]: Finished difference Result 2914 states and 4172 transitions. [2021-11-19 14:00:40,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:00:40,119 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 71 [2021-11-19 14:00:40,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:40,160 INFO L225 Difference]: With dead ends: 2914 [2021-11-19 14:00:40,160 INFO L226 Difference]: Without dead ends: 1788 [2021-11-19 14:00:40,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:00:40,182 INFO L933 BasicCegarLoop]: 2115 mSDtfsCounter, 1019 mSDsluCounter, 7098 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1205 SdHoareTripleChecker+Valid, 9213 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:40,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1205 Valid, 9213 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-19 14:00:40,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1788 states. [2021-11-19 14:00:40,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1788 to 1189. [2021-11-19 14:00:40,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1189 states, 783 states have (on average 1.1966794380587484) internal successors, (937), 820 states have internal predecessors, (937), 298 states have call successors, (298), 80 states have call predecessors, (298), 79 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2021-11-19 14:00:40,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1189 states to 1189 states and 1531 transitions. [2021-11-19 14:00:40,407 INFO L78 Accepts]: Start accepts. Automaton has 1189 states and 1531 transitions. Word has length 71 [2021-11-19 14:00:40,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:40,408 INFO L470 AbstractCegarLoop]: Abstraction has 1189 states and 1531 transitions. [2021-11-19 14:00:40,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-19 14:00:40,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1531 transitions. [2021-11-19 14:00:40,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-19 14:00:40,419 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:40,420 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:40,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-19 14:00:40,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:40,644 INFO L402 AbstractCegarLoop]: === Iteration 2 === 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)] === [2021-11-19 14:00:40,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:40,645 INFO L85 PathProgramCache]: Analyzing trace with hash 344678285, now seen corresponding path program 1 times [2021-11-19 14:00:40,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:40,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1494690650] [2021-11-19 14:00:40,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:40,649 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:40,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:40,650 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:40,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:00:41,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:42,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 2097 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:00:42,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:42,551 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:00:42,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:43,008 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:00:43,009 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:43,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1494690650] [2021-11-19 14:00:43,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1494690650] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:43,009 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:43,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:00:43,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460592600] [2021-11-19 14:00:43,010 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:43,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:00:43,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:43,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:00:43,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:00:43,012 INFO L87 Difference]: Start difference. First operand 1189 states and 1531 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 14:00:43,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:43,128 INFO L93 Difference]: Finished difference Result 1189 states and 1531 transitions. [2021-11-19 14:00:43,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:00:43,129 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 71 [2021-11-19 14:00:43,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:43,139 INFO L225 Difference]: With dead ends: 1189 [2021-11-19 14:00:43,139 INFO L226 Difference]: Without dead ends: 1187 [2021-11-19 14:00:43,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:00:43,141 INFO L933 BasicCegarLoop]: 1522 mSDtfsCounter, 1473 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 3042 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:43,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1475 Valid, 3042 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:00:43,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2021-11-19 14:00:43,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 1187. [2021-11-19 14:00:43,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1187 states, 782 states have (on average 1.1956521739130435) internal successors, (935), 818 states have internal predecessors, (935), 298 states have call successors, (298), 80 states have call predecessors, (298), 79 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2021-11-19 14:00:43,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1187 states to 1187 states and 1529 transitions. [2021-11-19 14:00:43,222 INFO L78 Accepts]: Start accepts. Automaton has 1187 states and 1529 transitions. Word has length 71 [2021-11-19 14:00:43,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:43,223 INFO L470 AbstractCegarLoop]: Abstraction has 1187 states and 1529 transitions. [2021-11-19 14:00:43,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 14:00:43,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1187 states and 1529 transitions. [2021-11-19 14:00:43,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-19 14:00:43,225 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:43,226 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:43,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:43,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:43,441 INFO L402 AbstractCegarLoop]: === Iteration 3 === 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)] === [2021-11-19 14:00:43,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:43,441 INFO L85 PathProgramCache]: Analyzing trace with hash -653152447, now seen corresponding path program 1 times [2021-11-19 14:00:43,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:43,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112498908] [2021-11-19 14:00:43,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:43,447 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:43,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:43,448 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:43,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:00:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:44,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 2106 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:00:44,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:45,594 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:00:45,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:45,980 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:00:45,981 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:45,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112498908] [2021-11-19 14:00:45,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2112498908] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:45,981 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:45,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:00:45,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99178398] [2021-11-19 14:00:45,982 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:45,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:00:45,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:45,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:00:45,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:00:45,983 INFO L87 Difference]: Start difference. First operand 1187 states and 1529 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 14:00:46,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:46,116 INFO L93 Difference]: Finished difference Result 1187 states and 1529 transitions. [2021-11-19 14:00:46,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:00:46,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 77 [2021-11-19 14:00:46,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:46,127 INFO L225 Difference]: With dead ends: 1187 [2021-11-19 14:00:46,128 INFO L226 Difference]: Without dead ends: 1185 [2021-11-19 14:00:46,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:00:46,132 INFO L933 BasicCegarLoop]: 1520 mSDtfsCounter, 1462 mSDsluCounter, 3036 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 4556 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:46,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1464 Valid, 4556 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:00:46,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2021-11-19 14:00:46,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1185. [2021-11-19 14:00:46,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 781 states have (on average 1.1946222791293213) internal successors, (933), 816 states have internal predecessors, (933), 298 states have call successors, (298), 80 states have call predecessors, (298), 79 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2021-11-19 14:00:46,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1527 transitions. [2021-11-19 14:00:46,227 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1527 transitions. Word has length 77 [2021-11-19 14:00:46,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:46,228 INFO L470 AbstractCegarLoop]: Abstraction has 1185 states and 1527 transitions. [2021-11-19 14:00:46,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 14:00:46,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1527 transitions. [2021-11-19 14:00:46,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-19 14:00:46,231 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:46,231 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:46,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:46,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:46,459 INFO L402 AbstractCegarLoop]: === Iteration 4 === 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)] === [2021-11-19 14:00:46,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:46,460 INFO L85 PathProgramCache]: Analyzing trace with hash 342503834, now seen corresponding path program 1 times [2021-11-19 14:00:46,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:46,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1336905047] [2021-11-19 14:00:46,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:46,462 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:46,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:46,463 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:46,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:00:47,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:47,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 2115 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:00:47,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:48,327 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:00:48,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:48,721 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:00:48,722 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:48,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1336905047] [2021-11-19 14:00:48,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1336905047] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:48,722 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:48,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:00:48,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220023023] [2021-11-19 14:00:48,723 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:48,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:00:48,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:48,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:00:48,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:00:48,725 INFO L87 Difference]: Start difference. First operand 1185 states and 1527 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-19 14:00:48,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:48,853 INFO L93 Difference]: Finished difference Result 1185 states and 1527 transitions. [2021-11-19 14:00:48,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:00:48,854 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 83 [2021-11-19 14:00:48,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:48,864 INFO L225 Difference]: With dead ends: 1185 [2021-11-19 14:00:48,864 INFO L226 Difference]: Without dead ends: 1183 [2021-11-19 14:00:48,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:00:48,866 INFO L933 BasicCegarLoop]: 1518 mSDtfsCounter, 1454 mSDsluCounter, 3032 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 4550 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:48,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1456 Valid, 4550 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:00:48,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2021-11-19 14:00:48,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183. [2021-11-19 14:00:48,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 780 states have (on average 1.1935897435897436) internal successors, (931), 814 states have internal predecessors, (931), 298 states have call successors, (298), 80 states have call predecessors, (298), 79 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2021-11-19 14:00:48,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1525 transitions. [2021-11-19 14:00:48,951 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1525 transitions. Word has length 83 [2021-11-19 14:00:48,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:48,951 INFO L470 AbstractCegarLoop]: Abstraction has 1183 states and 1525 transitions. [2021-11-19 14:00:48,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-19 14:00:48,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1525 transitions. [2021-11-19 14:00:48,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-19 14:00:48,953 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:48,954 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:48,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:49,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:49,167 INFO L402 AbstractCegarLoop]: === Iteration 5 === 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)] === [2021-11-19 14:00:49,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:49,167 INFO L85 PathProgramCache]: Analyzing trace with hash -856665656, now seen corresponding path program 1 times [2021-11-19 14:00:49,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:49,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [920231655] [2021-11-19 14:00:49,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:49,169 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:49,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:49,170 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:49,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:00:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:50,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 2124 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:00:50,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:51,024 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:00:51,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:51,358 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:00:51,358 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:51,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [920231655] [2021-11-19 14:00:51,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [920231655] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:51,358 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:51,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:00:51,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262370130] [2021-11-19 14:00:51,359 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:51,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:00:51,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:51,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:00:51,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:00:51,360 INFO L87 Difference]: Start difference. First operand 1183 states and 1525 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-19 14:00:51,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:51,478 INFO L93 Difference]: Finished difference Result 1183 states and 1525 transitions. [2021-11-19 14:00:51,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:00:51,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 89 [2021-11-19 14:00:51,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:51,488 INFO L225 Difference]: With dead ends: 1183 [2021-11-19 14:00:51,488 INFO L226 Difference]: Without dead ends: 1181 [2021-11-19 14:00:51,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:00:51,490 INFO L933 BasicCegarLoop]: 1516 mSDtfsCounter, 1449 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1451 SdHoareTripleChecker+Valid, 3030 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:51,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1451 Valid, 3030 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:00:51,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2021-11-19 14:00:51,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 1181. [2021-11-19 14:00:51,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 779 states have (on average 1.1925545571245186) internal successors, (929), 812 states have internal predecessors, (929), 298 states have call successors, (298), 80 states have call predecessors, (298), 79 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2021-11-19 14:00:51,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1523 transitions. [2021-11-19 14:00:51,574 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1523 transitions. Word has length 89 [2021-11-19 14:00:51,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:51,575 INFO L470 AbstractCegarLoop]: Abstraction has 1181 states and 1523 transitions. [2021-11-19 14:00:51,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-19 14:00:51,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1523 transitions. [2021-11-19 14:00:51,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-19 14:00:51,583 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:51,583 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:51,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:51,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:51,803 INFO L402 AbstractCegarLoop]: === Iteration 6 === 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)] === [2021-11-19 14:00:51,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:51,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1085719422, now seen corresponding path program 1 times [2021-11-19 14:00:51,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:51,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [824943925] [2021-11-19 14:00:51,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:51,806 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:51,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:51,808 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:51,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:00:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:53,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 2133 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:00:53,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:53,661 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:00:53,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:54,061 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:00:54,061 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:54,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [824943925] [2021-11-19 14:00:54,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [824943925] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:54,062 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:54,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:00:54,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746949955] [2021-11-19 14:00:54,062 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:54,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:00:54,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:54,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:00:54,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:00:54,064 INFO L87 Difference]: Start difference. First operand 1181 states and 1523 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 14:00:54,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:54,197 INFO L93 Difference]: Finished difference Result 1181 states and 1523 transitions. [2021-11-19 14:00:54,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:00:54,198 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 95 [2021-11-19 14:00:54,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:54,208 INFO L225 Difference]: With dead ends: 1181 [2021-11-19 14:00:54,208 INFO L226 Difference]: Without dead ends: 1179 [2021-11-19 14:00:54,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:00:54,211 INFO L933 BasicCegarLoop]: 1514 mSDtfsCounter, 1438 mSDsluCounter, 3024 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 4538 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:54,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1440 Valid, 4538 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:00:54,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2021-11-19 14:00:54,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 1179. [2021-11-19 14:00:54,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1179 states, 778 states have (on average 1.1915167095115682) internal successors, (927), 810 states have internal predecessors, (927), 298 states have call successors, (298), 80 states have call predecessors, (298), 79 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2021-11-19 14:00:54,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1179 states to 1179 states and 1521 transitions. [2021-11-19 14:00:54,313 INFO L78 Accepts]: Start accepts. Automaton has 1179 states and 1521 transitions. Word has length 95 [2021-11-19 14:00:54,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:54,314 INFO L470 AbstractCegarLoop]: Abstraction has 1179 states and 1521 transitions. [2021-11-19 14:00:54,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 14:00:54,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1179 states and 1521 transitions. [2021-11-19 14:00:54,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-19 14:00:54,317 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:54,317 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:54,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:54,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:54,539 INFO L402 AbstractCegarLoop]: === Iteration 7 === 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)] === [2021-11-19 14:00:54,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:54,539 INFO L85 PathProgramCache]: Analyzing trace with hash 697185118, now seen corresponding path program 1 times [2021-11-19 14:00:54,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:54,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458422540] [2021-11-19 14:00:54,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:54,541 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:54,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:54,542 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:54,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:00:55,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:55,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 2142 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:00:55,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:56,449 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:00:56,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:56,846 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:00:56,847 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:56,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458422540] [2021-11-19 14:00:56,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1458422540] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:56,847 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:56,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:00:56,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451139887] [2021-11-19 14:00:56,848 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:56,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:00:56,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:56,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:00:56,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:00:56,849 INFO L87 Difference]: Start difference. First operand 1179 states and 1521 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 14:00:56,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:56,982 INFO L93 Difference]: Finished difference Result 1179 states and 1521 transitions. [2021-11-19 14:00:56,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:00:56,983 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 101 [2021-11-19 14:00:56,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:56,993 INFO L225 Difference]: With dead ends: 1179 [2021-11-19 14:00:56,994 INFO L226 Difference]: Without dead ends: 1177 [2021-11-19 14:00:56,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:00:56,996 INFO L933 BasicCegarLoop]: 1512 mSDtfsCounter, 1430 mSDsluCounter, 3020 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 4532 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:56,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1432 Valid, 4532 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:00:56,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2021-11-19 14:00:57,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1177. [2021-11-19 14:00:57,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 777 states have (on average 1.1904761904761905) internal successors, (925), 808 states have internal predecessors, (925), 298 states have call successors, (298), 80 states have call predecessors, (298), 79 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2021-11-19 14:00:57,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1519 transitions. [2021-11-19 14:00:57,133 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1519 transitions. Word has length 101 [2021-11-19 14:00:57,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:57,133 INFO L470 AbstractCegarLoop]: Abstraction has 1177 states and 1519 transitions. [2021-11-19 14:00:57,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 14:00:57,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1519 transitions. [2021-11-19 14:00:57,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-19 14:00:57,137 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:57,138 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:57,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:57,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:57,351 INFO L402 AbstractCegarLoop]: === Iteration 8 === 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)] === [2021-11-19 14:00:57,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:57,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1172007804, now seen corresponding path program 1 times [2021-11-19 14:00:57,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:57,353 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [448951617] [2021-11-19 14:00:57,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:57,354 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:57,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:57,355 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:57,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:00:58,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:58,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 2151 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:00:58,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:59,339 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:00:59,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:59,772 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:00:59,772 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:59,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [448951617] [2021-11-19 14:00:59,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [448951617] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:59,773 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:59,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:00:59,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690159657] [2021-11-19 14:00:59,773 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:59,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:00:59,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:59,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:00:59,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:00:59,775 INFO L87 Difference]: Start difference. First operand 1177 states and 1519 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 14:00:59,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:59,920 INFO L93 Difference]: Finished difference Result 1177 states and 1519 transitions. [2021-11-19 14:00:59,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:00:59,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 107 [2021-11-19 14:00:59,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:59,930 INFO L225 Difference]: With dead ends: 1177 [2021-11-19 14:00:59,931 INFO L226 Difference]: Without dead ends: 1175 [2021-11-19 14:00:59,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:00:59,933 INFO L933 BasicCegarLoop]: 1510 mSDtfsCounter, 1422 mSDsluCounter, 3016 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1424 SdHoareTripleChecker+Valid, 4526 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:59,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1424 Valid, 4526 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:00:59,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2021-11-19 14:01:00,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1175. [2021-11-19 14:01:00,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1175 states, 776 states have (on average 1.1894329896907216) internal successors, (923), 806 states have internal predecessors, (923), 298 states have call successors, (298), 80 states have call predecessors, (298), 79 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2021-11-19 14:01:00,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1517 transitions. [2021-11-19 14:01:00,038 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1517 transitions. Word has length 107 [2021-11-19 14:01:00,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:00,039 INFO L470 AbstractCegarLoop]: Abstraction has 1175 states and 1517 transitions. [2021-11-19 14:01:00,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 14:01:00,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1517 transitions. [2021-11-19 14:01:00,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-19 14:01:00,042 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:00,042 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:00,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:00,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:00,263 INFO L402 AbstractCegarLoop]: === Iteration 9 === 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)] === [2021-11-19 14:01:00,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:00,263 INFO L85 PathProgramCache]: Analyzing trace with hash -412931297, now seen corresponding path program 1 times [2021-11-19 14:01:00,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:00,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2116337082] [2021-11-19 14:01:00,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:00,265 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:00,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:00,266 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:00,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 14:01:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:01,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 2160 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:01:01,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:02,510 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:01:02,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:02,937 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:01:02,938 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:02,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2116337082] [2021-11-19 14:01:02,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2116337082] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:01:02,938 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:01:02,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:01:02,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100367333] [2021-11-19 14:01:02,939 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:02,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:01:02,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:02,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:01:02,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:01:02,941 INFO L87 Difference]: Start difference. First operand 1175 states and 1517 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 14:01:03,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:03,093 INFO L93 Difference]: Finished difference Result 1175 states and 1517 transitions. [2021-11-19 14:01:03,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:01:03,094 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 113 [2021-11-19 14:01:03,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:03,104 INFO L225 Difference]: With dead ends: 1175 [2021-11-19 14:01:03,105 INFO L226 Difference]: Without dead ends: 1173 [2021-11-19 14:01:03,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:01:03,107 INFO L933 BasicCegarLoop]: 1508 mSDtfsCounter, 1418 mSDsluCounter, 3004 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1420 SdHoareTripleChecker+Valid, 4512 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:03,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1420 Valid, 4512 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:01:03,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2021-11-19 14:01:03,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 1173. [2021-11-19 14:01:03,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 775 states have (on average 1.1883870967741936) internal successors, (921), 804 states have internal predecessors, (921), 298 states have call successors, (298), 80 states have call predecessors, (298), 79 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2021-11-19 14:01:03,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1515 transitions. [2021-11-19 14:01:03,220 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1515 transitions. Word has length 113 [2021-11-19 14:01:03,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:03,220 INFO L470 AbstractCegarLoop]: Abstraction has 1173 states and 1515 transitions. [2021-11-19 14:01:03,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 14:01:03,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1515 transitions. [2021-11-19 14:01:03,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-19 14:01:03,224 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:03,224 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:03,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:03,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:03,444 INFO L402 AbstractCegarLoop]: === Iteration 10 === 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)] === [2021-11-19 14:01:03,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:03,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1689851646, now seen corresponding path program 1 times [2021-11-19 14:01:03,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:03,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [342544905] [2021-11-19 14:01:03,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:03,449 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:03,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:03,450 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:03,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 14:01:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:04,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 2163 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:01:04,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:05,713 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:01:05,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:06,187 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:01:06,187 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:06,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [342544905] [2021-11-19 14:01:06,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [342544905] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:01:06,187 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:01:06,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:01:06,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313812017] [2021-11-19 14:01:06,188 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:06,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:01:06,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:06,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:01:06,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:01:06,190 INFO L87 Difference]: Start difference. First operand 1173 states and 1515 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 14:01:06,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:06,391 INFO L93 Difference]: Finished difference Result 1173 states and 1515 transitions. [2021-11-19 14:01:06,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:01:06,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 115 [2021-11-19 14:01:06,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:06,403 INFO L225 Difference]: With dead ends: 1173 [2021-11-19 14:01:06,404 INFO L226 Difference]: Without dead ends: 1171 [2021-11-19 14:01:06,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:01:06,406 INFO L933 BasicCegarLoop]: 1506 mSDtfsCounter, 1413 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1415 SdHoareTripleChecker+Valid, 3010 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:06,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1415 Valid, 3010 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:01:06,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2021-11-19 14:01:06,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 1171. [2021-11-19 14:01:06,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 774 states have (on average 1.1873385012919897) internal successors, (919), 802 states have internal predecessors, (919), 298 states have call successors, (298), 80 states have call predecessors, (298), 79 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2021-11-19 14:01:06,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1513 transitions. [2021-11-19 14:01:06,534 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1513 transitions. Word has length 115 [2021-11-19 14:01:06,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:06,535 INFO L470 AbstractCegarLoop]: Abstraction has 1171 states and 1513 transitions. [2021-11-19 14:01:06,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 14:01:06,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1513 transitions. [2021-11-19 14:01:06,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-19 14:01:06,539 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:06,539 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:06,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:06,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:06,759 INFO L402 AbstractCegarLoop]: === Iteration 11 === 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)] === [2021-11-19 14:01:06,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:06,759 INFO L85 PathProgramCache]: Analyzing trace with hash -840109970, now seen corresponding path program 1 times [2021-11-19 14:01:06,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:06,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1878576235] [2021-11-19 14:01:06,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:06,763 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:06,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:06,765 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:06,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 14:01:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:08,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 2172 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:01:08,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:09,239 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:01:09,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:09,709 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:01:09,709 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:09,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1878576235] [2021-11-19 14:01:09,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1878576235] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:01:09,710 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:01:09,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:01:09,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406738890] [2021-11-19 14:01:09,711 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:09,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:01:09,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:09,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:01:09,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:01:09,713 INFO L87 Difference]: Start difference. First operand 1171 states and 1513 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 14:01:09,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:09,854 INFO L93 Difference]: Finished difference Result 1171 states and 1513 transitions. [2021-11-19 14:01:09,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:01:09,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 121 [2021-11-19 14:01:09,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:09,865 INFO L225 Difference]: With dead ends: 1171 [2021-11-19 14:01:09,866 INFO L226 Difference]: Without dead ends: 1169 [2021-11-19 14:01:09,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:01:09,868 INFO L933 BasicCegarLoop]: 1504 mSDtfsCounter, 1402 mSDsluCounter, 3004 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1404 SdHoareTripleChecker+Valid, 4508 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:09,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1404 Valid, 4508 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:01:09,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2021-11-19 14:01:10,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1169. [2021-11-19 14:01:10,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1169 states, 773 states have (on average 1.186287192755498) internal successors, (917), 800 states have internal predecessors, (917), 298 states have call successors, (298), 80 states have call predecessors, (298), 79 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2021-11-19 14:01:10,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1511 transitions. [2021-11-19 14:01:10,043 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1511 transitions. Word has length 121 [2021-11-19 14:01:10,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:10,044 INFO L470 AbstractCegarLoop]: Abstraction has 1169 states and 1511 transitions. [2021-11-19 14:01:10,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 14:01:10,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1511 transitions. [2021-11-19 14:01:10,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-19 14:01:10,047 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:10,047 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:10,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:10,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:10,271 INFO L402 AbstractCegarLoop]: === Iteration 12 === 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)] === [2021-11-19 14:01:10,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:10,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1637311748, now seen corresponding path program 1 times [2021-11-19 14:01:10,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:10,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002768213] [2021-11-19 14:01:10,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:10,274 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:10,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:10,278 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:10,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 14:01:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:11,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 2181 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:01:11,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:12,395 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:01:12,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:12,866 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:01:12,866 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:12,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2002768213] [2021-11-19 14:01:12,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2002768213] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:01:12,867 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:01:12,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:01:12,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301412277] [2021-11-19 14:01:12,867 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:12,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:01:12,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:12,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:01:12,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:01:12,869 INFO L87 Difference]: Start difference. First operand 1169 states and 1511 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-19 14:01:13,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:13,011 INFO L93 Difference]: Finished difference Result 1169 states and 1511 transitions. [2021-11-19 14:01:13,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:01:13,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 127 [2021-11-19 14:01:13,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:13,023 INFO L225 Difference]: With dead ends: 1169 [2021-11-19 14:01:13,024 INFO L226 Difference]: Without dead ends: 1167 [2021-11-19 14:01:13,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:01:13,026 INFO L933 BasicCegarLoop]: 1502 mSDtfsCounter, 1394 mSDsluCounter, 3000 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 4502 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:13,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1396 Valid, 4502 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:01:13,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2021-11-19 14:01:13,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 1167. [2021-11-19 14:01:13,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1167 states, 772 states have (on average 1.1852331606217616) internal successors, (915), 798 states have internal predecessors, (915), 298 states have call successors, (298), 80 states have call predecessors, (298), 79 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2021-11-19 14:01:13,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1509 transitions. [2021-11-19 14:01:13,264 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1509 transitions. Word has length 127 [2021-11-19 14:01:13,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:13,265 INFO L470 AbstractCegarLoop]: Abstraction has 1167 states and 1509 transitions. [2021-11-19 14:01:13,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-19 14:01:13,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1509 transitions. [2021-11-19 14:01:13,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-19 14:01:13,270 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:13,270 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:13,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:13,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:13,484 INFO L402 AbstractCegarLoop]: === Iteration 13 === 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)] === [2021-11-19 14:01:13,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:13,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1635450853, now seen corresponding path program 1 times [2021-11-19 14:01:13,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:13,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [820748704] [2021-11-19 14:01:13,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:13,487 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:13,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:13,488 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:13,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 14:01:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:14,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 2190 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:01:14,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:15,848 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:01:15,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:16,329 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:01:16,329 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:16,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [820748704] [2021-11-19 14:01:16,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [820748704] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:01:16,329 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:01:16,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:01:16,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907320089] [2021-11-19 14:01:16,330 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:16,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:01:16,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:16,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:01:16,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:01:16,332 INFO L87 Difference]: Start difference. First operand 1167 states and 1509 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-19 14:01:16,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:16,490 INFO L93 Difference]: Finished difference Result 1167 states and 1509 transitions. [2021-11-19 14:01:16,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:01:16,491 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 133 [2021-11-19 14:01:16,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:16,502 INFO L225 Difference]: With dead ends: 1167 [2021-11-19 14:01:16,502 INFO L226 Difference]: Without dead ends: 1165 [2021-11-19 14:01:16,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:01:16,504 INFO L933 BasicCegarLoop]: 1500 mSDtfsCounter, 1389 mSDsluCounter, 1498 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 2998 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:16,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1391 Valid, 2998 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:01:16,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2021-11-19 14:01:16,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 1165. [2021-11-19 14:01:16,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1165 states, 771 states have (on average 1.1841763942931258) internal successors, (913), 796 states have internal predecessors, (913), 298 states have call successors, (298), 80 states have call predecessors, (298), 79 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2021-11-19 14:01:16,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1165 states to 1165 states and 1507 transitions. [2021-11-19 14:01:16,723 INFO L78 Accepts]: Start accepts. Automaton has 1165 states and 1507 transitions. Word has length 133 [2021-11-19 14:01:16,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:16,723 INFO L470 AbstractCegarLoop]: Abstraction has 1165 states and 1507 transitions. [2021-11-19 14:01:16,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-19 14:01:16,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1165 states and 1507 transitions. [2021-11-19 14:01:16,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-19 14:01:16,727 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:16,727 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:16,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:16,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:16,943 INFO L402 AbstractCegarLoop]: === Iteration 14 === 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)] === [2021-11-19 14:01:16,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:16,943 INFO L85 PathProgramCache]: Analyzing trace with hash 258160742, now seen corresponding path program 1 times [2021-11-19 14:01:16,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:16,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1222005475] [2021-11-19 14:01:16,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:16,946 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:16,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:16,948 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:16,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 14:01:18,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:18,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 2199 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:01:18,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:19,338 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:01:19,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:19,869 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:01:19,869 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:19,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1222005475] [2021-11-19 14:01:19,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1222005475] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:01:19,869 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:01:19,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:01:19,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658734590] [2021-11-19 14:01:19,870 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:19,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:01:19,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:19,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:01:19,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:01:19,871 INFO L87 Difference]: Start difference. First operand 1165 states and 1507 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-19 14:01:20,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:20,014 INFO L93 Difference]: Finished difference Result 1165 states and 1507 transitions. [2021-11-19 14:01:20,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:01:20,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 139 [2021-11-19 14:01:20,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:20,024 INFO L225 Difference]: With dead ends: 1165 [2021-11-19 14:01:20,024 INFO L226 Difference]: Without dead ends: 1163 [2021-11-19 14:01:20,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:01:20,026 INFO L933 BasicCegarLoop]: 1498 mSDtfsCounter, 1381 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 2994 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:20,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1383 Valid, 2994 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:01:20,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2021-11-19 14:01:20,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 1163. [2021-11-19 14:01:20,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 770 states have (on average 1.183116883116883) internal successors, (911), 794 states have internal predecessors, (911), 298 states have call successors, (298), 80 states have call predecessors, (298), 79 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2021-11-19 14:01:20,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1505 transitions. [2021-11-19 14:01:20,164 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1505 transitions. Word has length 139 [2021-11-19 14:01:20,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:20,165 INFO L470 AbstractCegarLoop]: Abstraction has 1163 states and 1505 transitions. [2021-11-19 14:01:20,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-19 14:01:20,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1505 transitions. [2021-11-19 14:01:20,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-19 14:01:20,168 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:20,168 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:20,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:20,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:20,383 INFO L402 AbstractCegarLoop]: === Iteration 15 === 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)] === [2021-11-19 14:01:20,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:20,383 INFO L85 PathProgramCache]: Analyzing trace with hash 968451310, now seen corresponding path program 1 times [2021-11-19 14:01:20,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:20,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1307321314] [2021-11-19 14:01:20,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:20,387 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:20,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:20,388 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:20,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-19 14:01:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:21,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:01:21,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:22,924 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:01:22,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:23,430 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:01:23,431 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:23,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1307321314] [2021-11-19 14:01:23,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1307321314] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:01:23,431 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:01:23,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:01:23,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429883284] [2021-11-19 14:01:23,432 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:23,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:01:23,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:23,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:01:23,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:01:23,434 INFO L87 Difference]: Start difference. First operand 1163 states and 1505 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-19 14:01:23,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:23,614 INFO L93 Difference]: Finished difference Result 1163 states and 1505 transitions. [2021-11-19 14:01:23,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:01:23,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 145 [2021-11-19 14:01:23,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:23,627 INFO L225 Difference]: With dead ends: 1163 [2021-11-19 14:01:23,627 INFO L226 Difference]: Without dead ends: 1161 [2021-11-19 14:01:23,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:01:23,632 INFO L933 BasicCegarLoop]: 1496 mSDtfsCounter, 1370 mSDsluCounter, 2988 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1372 SdHoareTripleChecker+Valid, 4484 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:23,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1372 Valid, 4484 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:01:23,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2021-11-19 14:01:23,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1161. [2021-11-19 14:01:23,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1161 states, 769 states have (on average 1.1820546163849155) internal successors, (909), 792 states have internal predecessors, (909), 298 states have call successors, (298), 80 states have call predecessors, (298), 79 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2021-11-19 14:01:23,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1503 transitions. [2021-11-19 14:01:23,803 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1503 transitions. Word has length 145 [2021-11-19 14:01:23,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:23,805 INFO L470 AbstractCegarLoop]: Abstraction has 1161 states and 1503 transitions. [2021-11-19 14:01:23,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-19 14:01:23,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1503 transitions. [2021-11-19 14:01:23,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-19 14:01:23,810 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:23,810 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:23,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:24,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:24,024 INFO L402 AbstractCegarLoop]: === Iteration 16 === 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)] === [2021-11-19 14:01:24,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:24,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1527407926, now seen corresponding path program 1 times [2021-11-19 14:01:24,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:24,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2133663731] [2021-11-19 14:01:24,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:24,029 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:24,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:24,031 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:24,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-19 14:01:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:25,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 2217 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:01:25,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:26,431 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:01:26,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:27,364 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:01:27,364 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:27,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2133663731] [2021-11-19 14:01:27,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2133663731] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:01:27,364 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:01:27,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2021-11-19 14:01:27,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678028270] [2021-11-19 14:01:27,365 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:27,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:01:27,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:27,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:01:27,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:01:27,367 INFO L87 Difference]: Start difference. First operand 1161 states and 1503 transitions. Second operand has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 6 states have internal predecessors, (181), 3 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-19 14:01:28,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:28,686 INFO L93 Difference]: Finished difference Result 1161 states and 1503 transitions. [2021-11-19 14:01:28,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:01:28,688 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 6 states have internal predecessors, (181), 3 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 151 [2021-11-19 14:01:28,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:28,702 INFO L225 Difference]: With dead ends: 1161 [2021-11-19 14:01:28,702 INFO L226 Difference]: Without dead ends: 1159 [2021-11-19 14:01:28,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:01:28,705 INFO L933 BasicCegarLoop]: 1494 mSDtfsCounter, 2244 mSDsluCounter, 2984 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 569 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2246 SdHoareTripleChecker+Valid, 4478 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 569 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:28,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2246 Valid, 4478 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [569 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-19 14:01:28,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2021-11-19 14:01:28,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1159. [2021-11-19 14:01:28,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1159 states, 768 states have (on average 1.1809895833333333) internal successors, (907), 790 states have internal predecessors, (907), 298 states have call successors, (298), 80 states have call predecessors, (298), 79 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2021-11-19 14:01:28,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1501 transitions. [2021-11-19 14:01:28,916 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1501 transitions. Word has length 151 [2021-11-19 14:01:28,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:28,917 INFO L470 AbstractCegarLoop]: Abstraction has 1159 states and 1501 transitions. [2021-11-19 14:01:28,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 6 states have internal predecessors, (181), 3 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-19 14:01:28,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1501 transitions. [2021-11-19 14:01:28,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-19 14:01:28,921 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:28,922 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:28,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:29,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:29,147 INFO L402 AbstractCegarLoop]: === Iteration 17 === 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)] === [2021-11-19 14:01:29,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:29,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1583272458, now seen corresponding path program 1 times [2021-11-19 14:01:29,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:29,150 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85808589] [2021-11-19 14:01:29,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:29,150 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:29,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:29,151 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:29,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-19 14:01:31,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:31,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 2558 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-19 14:01:31,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:32,942 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 193 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2021-11-19 14:01:32,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:35,750 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 9 proven. 52 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2021-11-19 14:01:35,751 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:35,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [85808589] [2021-11-19 14:01:35,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [85808589] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:01:35,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:01:35,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [10] total 19 [2021-11-19 14:01:35,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858695211] [2021-11-19 14:01:35,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:35,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 14:01:35,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:35,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 14:01:35,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2021-11-19 14:01:35,754 INFO L87 Difference]: Start difference. First operand 1159 states and 1501 transitions. Second operand has 12 states, 10 states have (on average 7.9) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (23), 2 states have call predecessors, (23), 5 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) [2021-11-19 14:01:38,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:38,287 INFO L93 Difference]: Finished difference Result 2381 states and 3106 transitions. [2021-11-19 14:01:38,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-19 14:01:38,288 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.9) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (23), 2 states have call predecessors, (23), 5 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) Word has length 196 [2021-11-19 14:01:38,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:38,300 INFO L225 Difference]: With dead ends: 2381 [2021-11-19 14:01:38,300 INFO L226 Difference]: Without dead ends: 1247 [2021-11-19 14:01:38,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2021-11-19 14:01:38,307 INFO L933 BasicCegarLoop]: 1594 mSDtfsCounter, 398 mSDsluCounter, 12127 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 13721 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:38,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [583 Valid, 13721 Invalid, 408 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-19 14:01:38,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2021-11-19 14:01:38,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 1159. [2021-11-19 14:01:38,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1159 states, 768 states have (on average 1.1796875) internal successors, (906), 789 states have internal predecessors, (906), 298 states have call successors, (298), 80 states have call predecessors, (298), 79 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2021-11-19 14:01:38,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1500 transitions. [2021-11-19 14:01:38,454 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1500 transitions. Word has length 196 [2021-11-19 14:01:38,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:38,455 INFO L470 AbstractCegarLoop]: Abstraction has 1159 states and 1500 transitions. [2021-11-19 14:01:38,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.9) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (23), 2 states have call predecessors, (23), 5 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) [2021-11-19 14:01:38,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1500 transitions. [2021-11-19 14:01:38,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-19 14:01:38,457 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:38,458 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:38,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:38,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:38,675 INFO L402 AbstractCegarLoop]: === Iteration 18 === 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)] === [2021-11-19 14:01:38,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:38,675 INFO L85 PathProgramCache]: Analyzing trace with hash -79852977, now seen corresponding path program 1 times [2021-11-19 14:01:38,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:38,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [596615911] [2021-11-19 14:01:38,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:38,677 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:38,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:38,678 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:38,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-19 14:01:40,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:40,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 2226 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:01:40,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:41,140 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:01:41,141 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:41,678 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:01:41,678 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:41,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [596615911] [2021-11-19 14:01:41,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [596615911] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:01:41,679 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:01:41,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:01:41,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608932087] [2021-11-19 14:01:41,679 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:41,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:01:41,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:41,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:01:41,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:01:41,681 INFO L87 Difference]: Start difference. First operand 1159 states and 1500 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-19 14:01:41,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:41,901 INFO L93 Difference]: Finished difference Result 1159 states and 1500 transitions. [2021-11-19 14:01:41,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:01:41,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 157 [2021-11-19 14:01:41,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:41,912 INFO L225 Difference]: With dead ends: 1159 [2021-11-19 14:01:41,912 INFO L226 Difference]: Without dead ends: 1157 [2021-11-19 14:01:41,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 308 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:01:41,914 INFO L933 BasicCegarLoop]: 1491 mSDtfsCounter, 1356 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1358 SdHoareTripleChecker+Valid, 2980 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:41,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1358 Valid, 2980 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:01:41,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2021-11-19 14:01:42,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1157. [2021-11-19 14:01:42,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 767 states have (on average 1.1786179921773141) internal successors, (904), 787 states have internal predecessors, (904), 298 states have call successors, (298), 80 states have call predecessors, (298), 79 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2021-11-19 14:01:42,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1498 transitions. [2021-11-19 14:01:42,078 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1498 transitions. Word has length 157 [2021-11-19 14:01:42,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:42,079 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1498 transitions. [2021-11-19 14:01:42,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-19 14:01:42,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1498 transitions. [2021-11-19 14:01:42,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-11-19 14:01:42,082 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:42,083 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:42,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:42,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:42,299 INFO L402 AbstractCegarLoop]: === Iteration 19 === 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)] === [2021-11-19 14:01:42,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:42,299 INFO L85 PathProgramCache]: Analyzing trace with hash -21644979, now seen corresponding path program 1 times [2021-11-19 14:01:42,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:42,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [825746198] [2021-11-19 14:01:42,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:42,304 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:42,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:42,305 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:42,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-19 14:01:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:44,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 2569 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-19 14:01:44,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:46,191 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2021-11-19 14:01:46,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:48,719 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 22 proven. 39 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2021-11-19 14:01:48,719 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:48,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [825746198] [2021-11-19 14:01:48,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [825746198] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:01:48,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:01:48,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [10] total 19 [2021-11-19 14:01:48,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156385782] [2021-11-19 14:01:48,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:48,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 14:01:48,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:48,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 14:01:48,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2021-11-19 14:01:48,722 INFO L87 Difference]: Start difference. First operand 1157 states and 1498 transitions. Second operand has 12 states, 10 states have (on average 8.7) internal successors, (87), 9 states have internal predecessors, (87), 4 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (27), 6 states have call predecessors, (27), 4 states have call successors, (27) [2021-11-19 14:01:51,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:51,166 INFO L93 Difference]: Finished difference Result 2372 states and 3093 transitions. [2021-11-19 14:01:51,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-19 14:01:51,167 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.7) internal successors, (87), 9 states have internal predecessors, (87), 4 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (27), 6 states have call predecessors, (27), 4 states have call successors, (27) Word has length 200 [2021-11-19 14:01:51,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:51,179 INFO L225 Difference]: With dead ends: 2372 [2021-11-19 14:01:51,180 INFO L226 Difference]: Without dead ends: 1245 [2021-11-19 14:01:51,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2021-11-19 14:01:51,188 INFO L933 BasicCegarLoop]: 1591 mSDtfsCounter, 392 mSDsluCounter, 13698 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 15289 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:51,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [575 Valid, 15289 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-19 14:01:51,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2021-11-19 14:01:51,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 1157. [2021-11-19 14:01:51,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 767 states have (on average 1.1773142112125163) internal successors, (903), 786 states have internal predecessors, (903), 298 states have call successors, (298), 80 states have call predecessors, (298), 79 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2021-11-19 14:01:51,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1497 transitions. [2021-11-19 14:01:51,363 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1497 transitions. Word has length 200 [2021-11-19 14:01:51,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:51,364 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1497 transitions. [2021-11-19 14:01:51,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.7) internal successors, (87), 9 states have internal predecessors, (87), 4 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (27), 6 states have call predecessors, (27), 4 states have call successors, (27) [2021-11-19 14:01:51,364 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1497 transitions. [2021-11-19 14:01:51,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-19 14:01:51,367 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:51,367 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:51,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:51,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:51,573 INFO L402 AbstractCegarLoop]: === Iteration 20 === 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)] === [2021-11-19 14:01:51,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:51,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1489884183, now seen corresponding path program 1 times [2021-11-19 14:01:51,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:51,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1463533062] [2021-11-19 14:01:51,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:51,576 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:51,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:51,578 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:51,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-19 14:01:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:52,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 2235 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:01:52,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:54,117 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:01:54,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:54,695 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:01:54,696 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:54,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1463533062] [2021-11-19 14:01:54,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1463533062] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:01:54,696 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:01:54,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:01:54,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784659701] [2021-11-19 14:01:54,696 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:54,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:01:54,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:54,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:01:54,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:01:54,698 INFO L87 Difference]: Start difference. First operand 1157 states and 1497 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-19 14:01:54,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:01:54,849 INFO L93 Difference]: Finished difference Result 1157 states and 1497 transitions. [2021-11-19 14:01:54,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:01:54,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 163 [2021-11-19 14:01:54,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:01:54,861 INFO L225 Difference]: With dead ends: 1157 [2021-11-19 14:01:54,861 INFO L226 Difference]: Without dead ends: 1155 [2021-11-19 14:01:54,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:01:54,863 INFO L933 BasicCegarLoop]: 1488 mSDtfsCounter, 1347 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 2974 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:01:54,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1349 Valid, 2974 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:01:54,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2021-11-19 14:01:55,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1155. [2021-11-19 14:01:55,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 766 states have (on average 1.1762402088772845) internal successors, (901), 784 states have internal predecessors, (901), 298 states have call successors, (298), 80 states have call predecessors, (298), 79 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2021-11-19 14:01:55,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1495 transitions. [2021-11-19 14:01:55,051 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1495 transitions. Word has length 163 [2021-11-19 14:01:55,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:01:55,052 INFO L470 AbstractCegarLoop]: Abstraction has 1155 states and 1495 transitions. [2021-11-19 14:01:55,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-19 14:01:55,053 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1495 transitions. [2021-11-19 14:01:55,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-11-19 14:01:55,056 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:01:55,057 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:01:55,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-19 14:01:55,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:01:55,271 INFO L402 AbstractCegarLoop]: === Iteration 21 === 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)] === [2021-11-19 14:01:55,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:01:55,271 INFO L85 PathProgramCache]: Analyzing trace with hash -2099658134, now seen corresponding path program 1 times [2021-11-19 14:01:55,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:01:55,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44096137] [2021-11-19 14:01:55,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:01:55,274 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:01:55,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:01:55,276 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:01:55,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-19 14:01:57,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:01:57,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 2580 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:01:57,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:01:58,342 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2021-11-19 14:01:58,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:01:59,228 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2021-11-19 14:01:59,228 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:01:59,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44096137] [2021-11-19 14:01:59,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44096137] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:01:59,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:01:59,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2021-11-19 14:01:59,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906499909] [2021-11-19 14:01:59,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:01:59,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:01:59,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:01:59,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:01:59,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:01:59,232 INFO L87 Difference]: Start difference. First operand 1155 states and 1495 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-19 14:02:01,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:01,546 INFO L93 Difference]: Finished difference Result 2351 states and 3064 transitions. [2021-11-19 14:02:01,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:02:01,547 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 204 [2021-11-19 14:02:01,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:01,559 INFO L225 Difference]: With dead ends: 2351 [2021-11-19 14:02:01,560 INFO L226 Difference]: Without dead ends: 1241 [2021-11-19 14:02:01,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:02:01,566 INFO L933 BasicCegarLoop]: 1597 mSDtfsCounter, 375 mSDsluCounter, 5820 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 7417 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:01,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [550 Valid, 7417 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-19 14:02:01,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2021-11-19 14:02:01,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 1155. [2021-11-19 14:02:01,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 766 states have (on average 1.174934725848564) internal successors, (900), 784 states have internal predecessors, (900), 298 states have call successors, (298), 80 states have call predecessors, (298), 79 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2021-11-19 14:02:01,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1494 transitions. [2021-11-19 14:02:01,726 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1494 transitions. Word has length 204 [2021-11-19 14:02:01,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:01,727 INFO L470 AbstractCegarLoop]: Abstraction has 1155 states and 1494 transitions. [2021-11-19 14:02:01,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-19 14:02:01,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1494 transitions. [2021-11-19 14:02:01,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-11-19 14:02:01,730 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:01,731 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:02:01,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:01,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:01,959 INFO L402 AbstractCegarLoop]: === Iteration 22 === 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)] === [2021-11-19 14:02:01,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:01,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1851511640, now seen corresponding path program 1 times [2021-11-19 14:02:01,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:01,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2045745502] [2021-11-19 14:02:01,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:01,963 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:01,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:01,965 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:02,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-19 14:02:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:04,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 2580 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:02:04,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:05,200 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2021-11-19 14:02:05,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:06,061 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2021-11-19 14:02:06,061 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:06,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2045745502] [2021-11-19 14:02:06,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2045745502] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:02:06,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:02:06,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2021-11-19 14:02:06,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069990251] [2021-11-19 14:02:06,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:06,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:02:06,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:06,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:02:06,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:02:06,065 INFO L87 Difference]: Start difference. First operand 1155 states and 1494 transitions. Second operand has 6 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-19 14:02:08,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:08,088 INFO L93 Difference]: Finished difference Result 2347 states and 3057 transitions. [2021-11-19 14:02:08,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:02:08,091 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 204 [2021-11-19 14:02:08,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:08,102 INFO L225 Difference]: With dead ends: 2347 [2021-11-19 14:02:08,103 INFO L226 Difference]: Without dead ends: 1241 [2021-11-19 14:02:08,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:02:08,110 INFO L933 BasicCegarLoop]: 1596 mSDtfsCounter, 371 mSDsluCounter, 5820 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 7416 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:08,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [545 Valid, 7416 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-19 14:02:08,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2021-11-19 14:02:08,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 1155. [2021-11-19 14:02:08,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 766 states have (on average 1.1736292428198434) internal successors, (899), 784 states have internal predecessors, (899), 298 states have call successors, (298), 80 states have call predecessors, (298), 79 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2021-11-19 14:02:08,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1493 transitions. [2021-11-19 14:02:08,321 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1493 transitions. Word has length 204 [2021-11-19 14:02:08,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:08,321 INFO L470 AbstractCegarLoop]: Abstraction has 1155 states and 1493 transitions. [2021-11-19 14:02:08,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-19 14:02:08,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1493 transitions. [2021-11-19 14:02:08,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-11-19 14:02:08,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:08,325 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:02:08,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:08,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:08,551 INFO L402 AbstractCegarLoop]: === Iteration 23 === 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)] === [2021-11-19 14:02:08,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:08,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1599450154, now seen corresponding path program 1 times [2021-11-19 14:02:08,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:08,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [277623668] [2021-11-19 14:02:08,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:08,555 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:08,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:08,557 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:08,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-19 14:02:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:11,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 2580 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:02:11,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:11,556 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2021-11-19 14:02:11,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:12,280 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2021-11-19 14:02:12,280 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:12,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [277623668] [2021-11-19 14:02:12,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [277623668] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:12,280 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:02:12,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-19 14:02:12,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425329076] [2021-11-19 14:02:12,281 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:12,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:02:12,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:12,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:02:12,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:02:12,281 INFO L87 Difference]: Start difference. First operand 1155 states and 1493 transitions. Second operand has 8 states, 6 states have (on average 13.0) internal successors, (78), 7 states have internal predecessors, (78), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-19 14:02:15,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:15,212 INFO L93 Difference]: Finished difference Result 2343 states and 3050 transitions. [2021-11-19 14:02:15,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:02:15,213 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 13.0) internal successors, (78), 7 states have internal predecessors, (78), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 204 [2021-11-19 14:02:15,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:15,225 INFO L225 Difference]: With dead ends: 2343 [2021-11-19 14:02:15,225 INFO L226 Difference]: Without dead ends: 1241 [2021-11-19 14:02:15,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:02:15,255 INFO L933 BasicCegarLoop]: 1595 mSDtfsCounter, 367 mSDsluCounter, 8978 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 10573 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 58 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:15,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [540 Valid, 10573 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 58 Unchecked, 2.7s Time] [2021-11-19 14:02:15,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2021-11-19 14:02:15,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 1155. [2021-11-19 14:02:15,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 766 states have (on average 1.1723237597911227) internal successors, (898), 784 states have internal predecessors, (898), 298 states have call successors, (298), 80 states have call predecessors, (298), 79 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2021-11-19 14:02:15,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1492 transitions. [2021-11-19 14:02:15,503 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1492 transitions. Word has length 204 [2021-11-19 14:02:15,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:15,504 INFO L470 AbstractCegarLoop]: Abstraction has 1155 states and 1492 transitions. [2021-11-19 14:02:15,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 13.0) internal successors, (78), 7 states have internal predecessors, (78), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-19 14:02:15,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1492 transitions. [2021-11-19 14:02:15,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-11-19 14:02:15,507 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:15,508 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:02:15,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:15,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:15,721 INFO L402 AbstractCegarLoop]: === Iteration 24 === 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)] === [2021-11-19 14:02:15,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:15,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1089977064, now seen corresponding path program 1 times [2021-11-19 14:02:15,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:15,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1844131072] [2021-11-19 14:02:15,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:15,725 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:15,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:15,726 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:15,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-19 14:02:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:18,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 2580 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:02:18,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:19,051 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2021-11-19 14:02:19,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:19,668 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2021-11-19 14:02:19,668 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:19,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1844131072] [2021-11-19 14:02:19,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1844131072] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:19,669 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:02:19,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:02:19,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319015069] [2021-11-19 14:02:19,669 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:19,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:02:19,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:19,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:02:19,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:02:19,671 INFO L87 Difference]: Start difference. First operand 1155 states and 1492 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-19 14:02:20,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:20,432 INFO L93 Difference]: Finished difference Result 2347 states and 2947 transitions. [2021-11-19 14:02:20,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:02:20,433 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 204 [2021-11-19 14:02:20,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:20,457 INFO L225 Difference]: With dead ends: 2347 [2021-11-19 14:02:20,467 INFO L226 Difference]: Without dead ends: 1647 [2021-11-19 14:02:20,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:02:20,471 INFO L933 BasicCegarLoop]: 1766 mSDtfsCounter, 1444 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1444 SdHoareTripleChecker+Valid, 2979 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:20,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1444 Valid, 2979 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 14:02:20,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2021-11-19 14:02:20,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1631. [2021-11-19 14:02:20,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1098 states have (on average 1.1794171220400729) internal successors, (1295), 1120 states have internal predecessors, (1295), 398 states have call successors, (398), 124 states have call predecessors, (398), 123 states have return successors, (396), 394 states have call predecessors, (396), 396 states have call successors, (396) [2021-11-19 14:02:20,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 2089 transitions. [2021-11-19 14:02:20,768 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 2089 transitions. Word has length 204 [2021-11-19 14:02:20,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:20,769 INFO L470 AbstractCegarLoop]: Abstraction has 1631 states and 2089 transitions. [2021-11-19 14:02:20,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-19 14:02:20,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 2089 transitions. [2021-11-19 14:02:20,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-19 14:02:20,772 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:20,773 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:02:20,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:20,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:20,994 INFO L402 AbstractCegarLoop]: === Iteration 25 === 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)] === [2021-11-19 14:02:20,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:20,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1933436151, now seen corresponding path program 1 times [2021-11-19 14:02:20,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:20,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [617724052] [2021-11-19 14:02:20,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:20,998 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:20,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:20,999 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:21,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-19 14:02:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:22,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 2244 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:02:22,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:23,704 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:02:23,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:24,320 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:02:24,320 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:24,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [617724052] [2021-11-19 14:02:24,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [617724052] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:24,321 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:02:24,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:02:24,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67518007] [2021-11-19 14:02:24,321 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:24,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:02:24,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:24,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:02:24,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:02:24,324 INFO L87 Difference]: Start difference. First operand 1631 states and 2089 transitions. Second operand has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-19 14:02:24,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:24,583 INFO L93 Difference]: Finished difference Result 1631 states and 2089 transitions. [2021-11-19 14:02:24,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:02:24,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 169 [2021-11-19 14:02:24,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:24,594 INFO L225 Difference]: With dead ends: 1631 [2021-11-19 14:02:24,594 INFO L226 Difference]: Without dead ends: 1629 [2021-11-19 14:02:24,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:02:24,597 INFO L933 BasicCegarLoop]: 1483 mSDtfsCounter, 1333 mSDsluCounter, 2962 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 4445 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:24,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1335 Valid, 4445 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:02:24,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2021-11-19 14:02:24,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 1629. [2021-11-19 14:02:24,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1629 states, 1097 states have (on average 1.178669097538742) internal successors, (1293), 1118 states have internal predecessors, (1293), 398 states have call successors, (398), 124 states have call predecessors, (398), 123 states have return successors, (396), 394 states have call predecessors, (396), 396 states have call successors, (396) [2021-11-19 14:02:24,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2087 transitions. [2021-11-19 14:02:24,918 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2087 transitions. Word has length 169 [2021-11-19 14:02:24,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:24,919 INFO L470 AbstractCegarLoop]: Abstraction has 1629 states and 2087 transitions. [2021-11-19 14:02:24,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-19 14:02:24,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2087 transitions. [2021-11-19 14:02:24,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-19 14:02:24,923 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:24,923 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:02:24,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:25,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:25,139 INFO L402 AbstractCegarLoop]: === Iteration 26 === 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)] === [2021-11-19 14:02:25,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:25,139 INFO L85 PathProgramCache]: Analyzing trace with hash -51266601, now seen corresponding path program 1 times [2021-11-19 14:02:25,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:25,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1034658063] [2021-11-19 14:02:25,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:25,143 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:25,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:25,144 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:25,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-19 14:02:27,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:27,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 2589 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:02:27,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:28,475 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2021-11-19 14:02:28,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:29,085 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-11-19 14:02:29,086 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:29,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1034658063] [2021-11-19 14:02:29,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1034658063] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:29,086 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:02:29,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:02:29,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716168019] [2021-11-19 14:02:29,087 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:29,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:02:29,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:29,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:02:29,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:02:29,089 INFO L87 Difference]: Start difference. First operand 1629 states and 2087 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-19 14:02:29,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:29,826 INFO L93 Difference]: Finished difference Result 2366 states and 2976 transitions. [2021-11-19 14:02:29,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:02:29,827 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 210 [2021-11-19 14:02:29,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:29,834 INFO L225 Difference]: With dead ends: 2366 [2021-11-19 14:02:29,835 INFO L226 Difference]: Without dead ends: 1675 [2021-11-19 14:02:29,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:02:29,838 INFO L933 BasicCegarLoop]: 1536 mSDtfsCounter, 1434 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1434 SdHoareTripleChecker+Valid, 1666 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:29,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1434 Valid, 1666 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 14:02:29,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2021-11-19 14:02:30,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 1672. [2021-11-19 14:02:30,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 1122 states have (on average 1.1729055258467023) internal successors, (1316), 1144 states have internal predecessors, (1316), 411 states have call successors, (411), 130 states have call predecessors, (411), 129 states have return successors, (409), 405 states have call predecessors, (409), 409 states have call successors, (409) [2021-11-19 14:02:30,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 2136 transitions. [2021-11-19 14:02:30,058 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 2136 transitions. Word has length 210 [2021-11-19 14:02:30,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:30,059 INFO L470 AbstractCegarLoop]: Abstraction has 1672 states and 2136 transitions. [2021-11-19 14:02:30,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-19 14:02:30,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 2136 transitions. [2021-11-19 14:02:30,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-19 14:02:30,062 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:30,062 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:02:30,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (27)] Ended with exit code 0 [2021-11-19 14:02:30,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:30,263 INFO L402 AbstractCegarLoop]: === Iteration 27 === 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)] === [2021-11-19 14:02:30,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:30,263 INFO L85 PathProgramCache]: Analyzing trace with hash -551765127, now seen corresponding path program 1 times [2021-11-19 14:02:30,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:30,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2055336773] [2021-11-19 14:02:30,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:30,267 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:30,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:30,268 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:30,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-19 14:02:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:31,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 2253 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:02:31,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:32,713 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:02:32,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:33,319 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:02:33,319 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:33,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2055336773] [2021-11-19 14:02:33,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2055336773] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:33,320 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:02:33,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:02:33,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884735893] [2021-11-19 14:02:33,320 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:33,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:02:33,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:33,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:02:33,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:02:33,322 INFO L87 Difference]: Start difference. First operand 1672 states and 2136 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-19 14:02:33,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:33,821 INFO L93 Difference]: Finished difference Result 3065 states and 3888 transitions. [2021-11-19 14:02:33,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:02:33,822 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 175 [2021-11-19 14:02:33,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:33,833 INFO L225 Difference]: With dead ends: 3065 [2021-11-19 14:02:33,833 INFO L226 Difference]: Without dead ends: 3063 [2021-11-19 14:02:33,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:02:33,837 INFO L933 BasicCegarLoop]: 1921 mSDtfsCounter, 1323 mSDsluCounter, 3069 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 4990 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:33,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1325 Valid, 4990 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:02:33,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3063 states. [2021-11-19 14:02:34,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3063 to 3030. [2021-11-19 14:02:34,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 2041 states have (on average 1.171484566389025) internal successors, (2391), 2074 states have internal predecessors, (2391), 730 states have call successors, (730), 250 states have call predecessors, (730), 249 states have return successors, (737), 721 states have call predecessors, (737), 728 states have call successors, (737) [2021-11-19 14:02:34,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3858 transitions. [2021-11-19 14:02:34,465 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3858 transitions. Word has length 175 [2021-11-19 14:02:34,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:34,466 INFO L470 AbstractCegarLoop]: Abstraction has 3030 states and 3858 transitions. [2021-11-19 14:02:34,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-19 14:02:34,467 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3858 transitions. [2021-11-19 14:02:34,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-19 14:02:34,470 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:34,470 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:02:34,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:34,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:34,671 INFO L402 AbstractCegarLoop]: === Iteration 28 === 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)] === [2021-11-19 14:02:34,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:34,671 INFO L85 PathProgramCache]: Analyzing trace with hash 831265369, now seen corresponding path program 1 times [2021-11-19 14:02:34,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:34,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1192191926] [2021-11-19 14:02:34,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:34,675 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:34,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:34,676 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:34,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-19 14:02:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:35,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 2262 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:02:35,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:37,176 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:02:37,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:37,784 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:02:37,784 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:37,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1192191926] [2021-11-19 14:02:37,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1192191926] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:37,787 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:02:37,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:02:37,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365763719] [2021-11-19 14:02:37,788 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:37,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:02:37,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:37,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:02:37,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:02:37,790 INFO L87 Difference]: Start difference. First operand 3030 states and 3858 transitions. Second operand has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-19 14:02:38,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:38,182 INFO L93 Difference]: Finished difference Result 3030 states and 3858 transitions. [2021-11-19 14:02:38,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:02:38,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 181 [2021-11-19 14:02:38,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:38,195 INFO L225 Difference]: With dead ends: 3030 [2021-11-19 14:02:38,195 INFO L226 Difference]: Without dead ends: 3028 [2021-11-19 14:02:38,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:02:38,198 INFO L933 BasicCegarLoop]: 1476 mSDtfsCounter, 1317 mSDsluCounter, 1474 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 2950 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:38,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1319 Valid, 2950 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:02:38,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3028 states. [2021-11-19 14:02:38,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3028 to 3028. [2021-11-19 14:02:38,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3028 states, 2040 states have (on average 1.171078431372549) internal successors, (2389), 2072 states have internal predecessors, (2389), 730 states have call successors, (730), 250 states have call predecessors, (730), 249 states have return successors, (737), 721 states have call predecessors, (737), 728 states have call successors, (737) [2021-11-19 14:02:38,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3028 states to 3028 states and 3856 transitions. [2021-11-19 14:02:38,796 INFO L78 Accepts]: Start accepts. Automaton has 3028 states and 3856 transitions. Word has length 181 [2021-11-19 14:02:38,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:38,798 INFO L470 AbstractCegarLoop]: Abstraction has 3028 states and 3856 transitions. [2021-11-19 14:02:38,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-19 14:02:38,798 INFO L276 IsEmpty]: Start isEmpty. Operand 3028 states and 3856 transitions. [2021-11-19 14:02:38,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-19 14:02:38,802 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:38,802 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:02:38,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:39,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:39,020 INFO L402 AbstractCegarLoop]: === Iteration 29 === 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)] === [2021-11-19 14:02:39,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:39,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1850276804, now seen corresponding path program 1 times [2021-11-19 14:02:39,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:39,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1323092304] [2021-11-19 14:02:39,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:39,024 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:39,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:39,025 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:39,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-19 14:02:40,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:40,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 2271 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:02:40,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:41,610 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:02:41,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:42,219 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:02:42,219 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:42,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1323092304] [2021-11-19 14:02:42,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1323092304] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:42,219 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:02:42,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:02:42,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983214990] [2021-11-19 14:02:42,220 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:42,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:02:42,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:42,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:02:42,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:02:42,221 INFO L87 Difference]: Start difference. First operand 3028 states and 3856 transitions. Second operand has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 states have internal predecessors, (207), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-19 14:02:43,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:43,020 INFO L93 Difference]: Finished difference Result 5906 states and 7581 transitions. [2021-11-19 14:02:43,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:02:43,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 states have internal predecessors, (207), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 187 [2021-11-19 14:02:43,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:43,052 INFO L225 Difference]: With dead ends: 5906 [2021-11-19 14:02:43,052 INFO L226 Difference]: Without dead ends: 5694 [2021-11-19 14:02:43,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:02:43,060 INFO L933 BasicCegarLoop]: 1796 mSDtfsCounter, 1303 mSDsluCounter, 3159 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1303 SdHoareTripleChecker+Valid, 4955 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:43,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1303 Valid, 4955 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:02:43,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5694 states. [2021-11-19 14:02:44,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5694 to 5670. [2021-11-19 14:02:44,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5670 states, 3832 states have (on average 1.1764091858037578) internal successors, (4508), 3880 states have internal predecessors, (4508), 1358 states have call successors, (1358), 474 states have call predecessors, (1358), 471 states have return successors, (1438), 1345 states have call predecessors, (1438), 1354 states have call successors, (1438) [2021-11-19 14:02:44,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5670 states to 5670 states and 7304 transitions. [2021-11-19 14:02:44,175 INFO L78 Accepts]: Start accepts. Automaton has 5670 states and 7304 transitions. Word has length 187 [2021-11-19 14:02:44,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:44,176 INFO L470 AbstractCegarLoop]: Abstraction has 5670 states and 7304 transitions. [2021-11-19 14:02:44,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 states have internal predecessors, (207), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-19 14:02:44,176 INFO L276 IsEmpty]: Start isEmpty. Operand 5670 states and 7304 transitions. [2021-11-19 14:02:44,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-11-19 14:02:44,179 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:44,179 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:02:44,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:44,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:44,395 INFO L402 AbstractCegarLoop]: === Iteration 30 === 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)] === [2021-11-19 14:02:44,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:44,395 INFO L85 PathProgramCache]: Analyzing trace with hash 754196415, now seen corresponding path program 1 times [2021-11-19 14:02:44,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:44,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1133783948] [2021-11-19 14:02:44,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:44,398 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:44,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:44,399 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:44,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-19 14:02:47,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:47,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 2737 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:02:47,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:47,985 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2021-11-19 14:02:47,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:48,673 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2021-11-19 14:02:48,673 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:48,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1133783948] [2021-11-19 14:02:48,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1133783948] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:48,673 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:02:48,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 14:02:48,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627799207] [2021-11-19 14:02:48,674 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:48,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:02:48,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:48,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:02:48,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:02:48,676 INFO L87 Difference]: Start difference. First operand 5670 states and 7304 transitions. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 14:02:52,977 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:02:54,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:54,322 INFO L93 Difference]: Finished difference Result 11916 states and 15534 transitions. [2021-11-19 14:02:54,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:02:54,324 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 250 [2021-11-19 14:02:54,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:54,357 INFO L225 Difference]: With dead ends: 11916 [2021-11-19 14:02:54,357 INFO L226 Difference]: Without dead ends: 6351 [2021-11-19 14:02:54,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 492 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:02:54,381 INFO L933 BasicCegarLoop]: 1661 mSDtfsCounter, 454 mSDsluCounter, 7735 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 9396 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:54,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [523 Valid, 9396 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-11-19 14:02:54,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6351 states. [2021-11-19 14:02:55,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6351 to 5673. [2021-11-19 14:02:55,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5673 states, 3835 states have (on average 1.176271186440678) internal successors, (4511), 3883 states have internal predecessors, (4511), 1358 states have call successors, (1358), 474 states have call predecessors, (1358), 471 states have return successors, (1438), 1345 states have call predecessors, (1438), 1354 states have call successors, (1438) [2021-11-19 14:02:55,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5673 states to 5673 states and 7307 transitions. [2021-11-19 14:02:55,522 INFO L78 Accepts]: Start accepts. Automaton has 5673 states and 7307 transitions. Word has length 250 [2021-11-19 14:02:55,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:55,523 INFO L470 AbstractCegarLoop]: Abstraction has 5673 states and 7307 transitions. [2021-11-19 14:02:55,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 14:02:55,523 INFO L276 IsEmpty]: Start isEmpty. Operand 5673 states and 7307 transitions. [2021-11-19 14:02:55,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2021-11-19 14:02:55,526 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:55,526 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:02:55,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:55,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:55,727 INFO L402 AbstractCegarLoop]: === Iteration 31 === 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)] === [2021-11-19 14:02:55,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:55,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1848303891, now seen corresponding path program 1 times [2021-11-19 14:02:55,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:55,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1274962763] [2021-11-19 14:02:55,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:55,730 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:55,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:55,731 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:55,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-11-19 14:02:58,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:58,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 2784 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 14:02:58,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:59,194 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2021-11-19 14:02:59,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:00,115 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2021-11-19 14:03:00,116 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:00,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1274962763] [2021-11-19 14:03:00,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1274962763] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:03:00,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:03:00,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2021-11-19 14:03:00,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648620964] [2021-11-19 14:03:00,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:00,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:03:00,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:00,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:03:00,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:03:00,117 INFO L87 Difference]: Start difference. First operand 5673 states and 7307 transitions. Second operand has 6 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-19 14:03:02,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:02,786 INFO L93 Difference]: Finished difference Result 11568 states and 14992 transitions. [2021-11-19 14:03:02,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:03:02,787 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 271 [2021-11-19 14:03:02,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:02,822 INFO L225 Difference]: With dead ends: 11568 [2021-11-19 14:03:02,822 INFO L226 Difference]: Without dead ends: 6012 [2021-11-19 14:03:02,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 534 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:03:02,847 INFO L933 BasicCegarLoop]: 1657 mSDtfsCounter, 344 mSDsluCounter, 6105 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 7762 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:03:02,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [511 Valid, 7762 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-19 14:03:02,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6012 states. [2021-11-19 14:03:03,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6012 to 5673. [2021-11-19 14:03:03,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5673 states, 3835 states have (on average 1.1760104302477183) internal successors, (4510), 3883 states have internal predecessors, (4510), 1358 states have call successors, (1358), 474 states have call predecessors, (1358), 471 states have return successors, (1438), 1345 states have call predecessors, (1438), 1354 states have call successors, (1438) [2021-11-19 14:03:03,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5673 states to 5673 states and 7306 transitions. [2021-11-19 14:03:03,915 INFO L78 Accepts]: Start accepts. Automaton has 5673 states and 7306 transitions. Word has length 271 [2021-11-19 14:03:03,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:03,915 INFO L470 AbstractCegarLoop]: Abstraction has 5673 states and 7306 transitions. [2021-11-19 14:03:03,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-19 14:03:03,916 INFO L276 IsEmpty]: Start isEmpty. Operand 5673 states and 7306 transitions. [2021-11-19 14:03:03,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2021-11-19 14:03:03,919 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:03,920 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:03:03,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:04,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:03:04,143 INFO L402 AbstractCegarLoop]: === Iteration 32 === 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)] === [2021-11-19 14:03:04,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:04,143 INFO L85 PathProgramCache]: Analyzing trace with hash -395679407, now seen corresponding path program 1 times [2021-11-19 14:03:04,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:04,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447346181] [2021-11-19 14:03:04,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:04,148 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:04,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:04,149 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:04,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-11-19 14:03:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:07,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 2784 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:03:07,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:08,177 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2021-11-19 14:03:08,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:09,142 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2021-11-19 14:03:09,142 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:09,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447346181] [2021-11-19 14:03:09,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [447346181] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:03:09,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:03:09,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2021-11-19 14:03:09,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840266696] [2021-11-19 14:03:09,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:09,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:03:09,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:09,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:03:09,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:03:09,145 INFO L87 Difference]: Start difference. First operand 5673 states and 7306 transitions. Second operand has 6 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-19 14:03:11,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:11,386 INFO L93 Difference]: Finished difference Result 11564 states and 14985 transitions. [2021-11-19 14:03:11,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:03:11,386 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 271 [2021-11-19 14:03:11,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:11,419 INFO L225 Difference]: With dead ends: 11564 [2021-11-19 14:03:11,419 INFO L226 Difference]: Without dead ends: 6012 [2021-11-19 14:03:11,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 534 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:03:11,446 INFO L933 BasicCegarLoop]: 1656 mSDtfsCounter, 340 mSDsluCounter, 6106 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 7762 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:03:11,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [506 Valid, 7762 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-19 14:03:11,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6012 states. [2021-11-19 14:03:12,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6012 to 5673. [2021-11-19 14:03:12,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5673 states, 3835 states have (on average 1.1757496740547588) internal successors, (4509), 3883 states have internal predecessors, (4509), 1358 states have call successors, (1358), 474 states have call predecessors, (1358), 471 states have return successors, (1438), 1345 states have call predecessors, (1438), 1354 states have call successors, (1438) [2021-11-19 14:03:12,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5673 states to 5673 states and 7305 transitions. [2021-11-19 14:03:12,479 INFO L78 Accepts]: Start accepts. Automaton has 5673 states and 7305 transitions. Word has length 271 [2021-11-19 14:03:12,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:12,480 INFO L470 AbstractCegarLoop]: Abstraction has 5673 states and 7305 transitions. [2021-11-19 14:03:12,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-19 14:03:12,481 INFO L276 IsEmpty]: Start isEmpty. Operand 5673 states and 7305 transitions. [2021-11-19 14:03:12,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2021-11-19 14:03:12,484 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:12,484 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:03:12,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (33)] Ended with exit code 0 [2021-11-19 14:03:12,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:03:12,692 INFO L402 AbstractCegarLoop]: === Iteration 33 === 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)] === [2021-11-19 14:03:12,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:12,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1527548627, now seen corresponding path program 1 times [2021-11-19 14:03:12,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:12,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [621603649] [2021-11-19 14:03:12,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:12,696 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:12,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:12,697 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:12,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-11-19 14:03:15,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:15,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 2784 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:03:15,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:16,354 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2021-11-19 14:03:16,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:16,985 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2021-11-19 14:03:16,985 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:16,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [621603649] [2021-11-19 14:03:16,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [621603649] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:03:16,985 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:03:16,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 14:03:16,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806054998] [2021-11-19 14:03:16,986 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:16,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:03:16,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:16,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:03:16,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:03:16,987 INFO L87 Difference]: Start difference. First operand 5673 states and 7305 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-19 14:03:18,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:18,579 INFO L93 Difference]: Finished difference Result 11225 states and 14457 transitions. [2021-11-19 14:03:18,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:03:18,591 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 271 [2021-11-19 14:03:18,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:18,619 INFO L225 Difference]: With dead ends: 11225 [2021-11-19 14:03:18,619 INFO L226 Difference]: Without dead ends: 5679 [2021-11-19 14:03:18,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 536 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:03:18,640 INFO L933 BasicCegarLoop]: 1470 mSDtfsCounter, 12 mSDsluCounter, 2938 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4408 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:03:18,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 4408 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 14:03:18,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5679 states. [2021-11-19 14:03:19,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5679 to 5679. [2021-11-19 14:03:19,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5679 states, 3841 states have (on average 1.1754751366831555) internal successors, (4515), 3889 states have internal predecessors, (4515), 1358 states have call successors, (1358), 474 states have call predecessors, (1358), 471 states have return successors, (1438), 1345 states have call predecessors, (1438), 1354 states have call successors, (1438) [2021-11-19 14:03:19,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5679 states to 5679 states and 7311 transitions. [2021-11-19 14:03:19,749 INFO L78 Accepts]: Start accepts. Automaton has 5679 states and 7311 transitions. Word has length 271 [2021-11-19 14:03:19,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:19,750 INFO L470 AbstractCegarLoop]: Abstraction has 5679 states and 7311 transitions. [2021-11-19 14:03:19,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-19 14:03:19,750 INFO L276 IsEmpty]: Start isEmpty. Operand 5679 states and 7311 transitions. [2021-11-19 14:03:19,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-11-19 14:03:19,753 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:19,753 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:03:19,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (34)] Ended with exit code 0 [2021-11-19 14:03:19,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:03:19,967 INFO L402 AbstractCegarLoop]: === Iteration 34 === 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)] === [2021-11-19 14:03:19,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:19,967 INFO L85 PathProgramCache]: Analyzing trace with hash -693441059, now seen corresponding path program 1 times [2021-11-19 14:03:19,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:19,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1233421224] [2021-11-19 14:03:19,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:19,970 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:19,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:19,971 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:19,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-11-19 14:03:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:23,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 2796 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:03:23,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:23,895 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 15 proven. 8 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2021-11-19 14:03:23,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:24,618 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2021-11-19 14:03:24,619 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:24,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1233421224] [2021-11-19 14:03:24,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1233421224] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:03:24,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1333117236] [2021-11-19 14:03:24,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:24,619 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:03:24,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:03:24,621 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:03:24,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2021-11-19 14:03:26,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:26,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 2796 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:03:26,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:28,499 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 603 trivial. 0 not checked. [2021-11-19 14:03:28,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:29,705 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 603 trivial. 0 not checked. [2021-11-19 14:03:29,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1333117236] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:03:29,705 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:03:29,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [6, 6] total 15 [2021-11-19 14:03:29,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330473625] [2021-11-19 14:03:29,706 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:29,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:03:29,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:29,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:03:29,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-11-19 14:03:29,708 INFO L87 Difference]: Start difference. First operand 5679 states and 7311 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 6 states have internal predecessors, (126), 2 states have call successors, (60), 2 states have call predecessors, (60), 4 states have return successors, (58), 3 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-19 14:03:32,038 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:03:35,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:35,697 INFO L93 Difference]: Finished difference Result 11210 states and 14632 transitions. [2021-11-19 14:03:35,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:03:35,698 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 6 states have internal predecessors, (126), 2 states have call successors, (60), 2 states have call predecessors, (60), 4 states have return successors, (58), 3 states have call predecessors, (58), 2 states have call successors, (58) Word has length 279 [2021-11-19 14:03:35,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:35,719 INFO L225 Difference]: With dead ends: 11210 [2021-11-19 14:03:35,719 INFO L226 Difference]: Without dead ends: 5679 [2021-11-19 14:03:35,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1114 GetRequests, 1099 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2021-11-19 14:03:35,740 INFO L933 BasicCegarLoop]: 1468 mSDtfsCounter, 1318 mSDsluCounter, 3802 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 5270 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:03:35,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1326 Valid, 5270 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 602 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2021-11-19 14:03:35,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5679 states. [2021-11-19 14:03:36,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5679 to 5679. [2021-11-19 14:03:36,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5679 states, 3841 states have (on average 1.173392345743296) internal successors, (4507), 3889 states have internal predecessors, (4507), 1358 states have call successors, (1358), 474 states have call predecessors, (1358), 471 states have return successors, (1438), 1345 states have call predecessors, (1438), 1354 states have call successors, (1438) [2021-11-19 14:03:36,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5679 states to 5679 states and 7303 transitions. [2021-11-19 14:03:36,841 INFO L78 Accepts]: Start accepts. Automaton has 5679 states and 7303 transitions. Word has length 279 [2021-11-19 14:03:36,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:36,841 INFO L470 AbstractCegarLoop]: Abstraction has 5679 states and 7303 transitions. [2021-11-19 14:03:36,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 6 states have internal predecessors, (126), 2 states have call successors, (60), 2 states have call predecessors, (60), 4 states have return successors, (58), 3 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-19 14:03:36,841 INFO L276 IsEmpty]: Start isEmpty. Operand 5679 states and 7303 transitions. [2021-11-19 14:03:36,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-11-19 14:03:36,844 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:36,845 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:03:36,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2021-11-19 14:03:37,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (35)] Ended with exit code 0 [2021-11-19 14:03:37,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:03:37,260 INFO L402 AbstractCegarLoop]: === Iteration 35 === 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)] === [2021-11-19 14:03:37,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:37,260 INFO L85 PathProgramCache]: Analyzing trace with hash -693381477, now seen corresponding path program 1 times [2021-11-19 14:03:37,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:37,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305559534] [2021-11-19 14:03:37,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:37,263 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:37,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:37,264 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:37,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-11-19 14:03:40,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:40,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 2796 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:03:40,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:40,968 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 15 proven. 8 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2021-11-19 14:03:40,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:41,674 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2021-11-19 14:03:41,674 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:41,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305559534] [2021-11-19 14:03:41,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [305559534] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:03:41,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [681196236] [2021-11-19 14:03:41,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:41,675 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:03:41,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:03:41,676 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:03:41,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2021-11-19 14:03:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:43,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 2796 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:03:43,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:43,850 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 15 proven. 8 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2021-11-19 14:03:43,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:44,545 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2021-11-19 14:03:44,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [681196236] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:03:44,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771411283] [2021-11-19 14:03:44,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:44,545 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:03:44,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:03:44,546 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:03:44,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-11-19 14:03:47,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:47,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 2796 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:03:47,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:48,232 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 15 proven. 8 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2021-11-19 14:03:48,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:48,880 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2021-11-19 14:03:48,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771411283] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:03:48,880 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 14:03:48,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 10 [2021-11-19 14:03:48,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770735703] [2021-11-19 14:03:48,881 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 14:03:48,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 14:03:48,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:48,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 14:03:48,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:03:48,884 INFO L87 Difference]: Start difference. First operand 5679 states and 7303 transitions. Second operand has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-19 14:03:51,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:51,757 INFO L93 Difference]: Finished difference Result 11241 states and 14459 transitions. [2021-11-19 14:03:51,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:03:51,770 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 279 [2021-11-19 14:03:51,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:51,798 INFO L225 Difference]: With dead ends: 11241 [2021-11-19 14:03:51,799 INFO L226 Difference]: Without dead ends: 5695 [2021-11-19 14:03:51,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1673 GetRequests, 1660 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2021-11-19 14:03:51,819 INFO L933 BasicCegarLoop]: 1473 mSDtfsCounter, 30 mSDsluCounter, 7349 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 8822 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:03:51,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 8822 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-19 14:03:51,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5695 states. [2021-11-19 14:03:52,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5695 to 5695. [2021-11-19 14:03:52,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5695 states, 3857 states have (on average 1.172673061965258) internal successors, (4523), 3905 states have internal predecessors, (4523), 1358 states have call successors, (1358), 474 states have call predecessors, (1358), 471 states have return successors, (1438), 1345 states have call predecessors, (1438), 1354 states have call successors, (1438) [2021-11-19 14:03:52,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5695 states to 5695 states and 7319 transitions. [2021-11-19 14:03:52,743 INFO L78 Accepts]: Start accepts. Automaton has 5695 states and 7319 transitions. Word has length 279 [2021-11-19 14:03:52,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:52,743 INFO L470 AbstractCegarLoop]: Abstraction has 5695 states and 7319 transitions. [2021-11-19 14:03:52,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-19 14:03:52,744 INFO L276 IsEmpty]: Start isEmpty. Operand 5695 states and 7319 transitions. [2021-11-19 14:03:52,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-11-19 14:03:52,747 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:52,747 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:03:52,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:52,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (38)] Ended with exit code 0 [2021-11-19 14:03:53,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:53,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:03:53,371 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:03:53,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:53,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1898695966, now seen corresponding path program 1 times [2021-11-19 14:03:53,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:53,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1754175065] [2021-11-19 14:03:53,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:53,375 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:53,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:53,376 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:53,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-11-19 14:03:55,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:56,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 2762 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-19 14:03:56,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:57,400 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2021-11-19 14:03:57,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:59,259 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2021-11-19 14:03:59,259 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:59,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1754175065] [2021-11-19 14:03:59,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1754175065] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:03:59,260 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:03:59,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 14] imperfect sequences [] total 25 [2021-11-19 14:03:59,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448442528] [2021-11-19 14:03:59,260 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:59,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-19 14:03:59,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:59,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-19 14:03:59,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-11-19 14:03:59,262 INFO L87 Difference]: Start difference. First operand 5695 states and 7319 transitions. Second operand has 25 states, 23 states have (on average 5.3478260869565215) internal successors, (123), 23 states have internal predecessors, (123), 10 states have call successors, (46), 2 states have call predecessors, (46), 5 states have return successors, (42), 10 states have call predecessors, (42), 10 states have call successors, (42) [2021-11-19 14:04:07,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:04:07,414 INFO L93 Difference]: Finished difference Result 8747 states and 11275 transitions. [2021-11-19 14:04:07,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-19 14:04:07,415 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 5.3478260869565215) internal successors, (123), 23 states have internal predecessors, (123), 10 states have call successors, (46), 2 states have call predecessors, (46), 5 states have return successors, (42), 10 states have call predecessors, (42), 10 states have call successors, (42) Word has length 275 [2021-11-19 14:04:07,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:04:07,445 INFO L225 Difference]: With dead ends: 8747 [2021-11-19 14:04:07,445 INFO L226 Difference]: Without dead ends: 6289 [2021-11-19 14:04:07,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 562 GetRequests, 525 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=229, Invalid=1253, Unknown=0, NotChecked=0, Total=1482 [2021-11-19 14:04:07,453 INFO L933 BasicCegarLoop]: 1544 mSDtfsCounter, 462 mSDsluCounter, 31510 mSDsCounter, 0 mSdLazyCounter, 1371 mSolverCounterSat, 432 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 33054 SdHoareTripleChecker+Invalid, 1803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 432 IncrementalHoareTripleChecker+Valid, 1371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:04:07,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [512 Valid, 33054 Invalid, 1803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [432 Valid, 1371 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2021-11-19 14:04:07,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6289 states. [2021-11-19 14:04:08,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6289 to 5736. [2021-11-19 14:04:08,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5736 states, 3891 states have (on average 1.1691081984065792) internal successors, (4549), 3941 states have internal predecessors, (4549), 1367 states have call successors, (1367), 472 states have call predecessors, (1367), 469 states have return successors, (1445), 1352 states have call predecessors, (1445), 1363 states have call successors, (1445) [2021-11-19 14:04:08,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5736 states to 5736 states and 7361 transitions. [2021-11-19 14:04:08,277 INFO L78 Accepts]: Start accepts. Automaton has 5736 states and 7361 transitions. Word has length 275 [2021-11-19 14:04:08,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:04:08,277 INFO L470 AbstractCegarLoop]: Abstraction has 5736 states and 7361 transitions. [2021-11-19 14:04:08,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 5.3478260869565215) internal successors, (123), 23 states have internal predecessors, (123), 10 states have call successors, (46), 2 states have call predecessors, (46), 5 states have return successors, (42), 10 states have call predecessors, (42), 10 states have call successors, (42) [2021-11-19 14:04:08,278 INFO L276 IsEmpty]: Start isEmpty. Operand 5736 states and 7361 transitions. [2021-11-19 14:04:08,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2021-11-19 14:04:08,280 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:08,281 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:04:08,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (40)] Ended with exit code 0 [2021-11-19 14:04:08,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:04:08,495 INFO L402 AbstractCegarLoop]: === Iteration 37 === 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)] === [2021-11-19 14:04:08,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:08,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1828626095, now seen corresponding path program 2 times [2021-11-19 14:04:08,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:08,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877856534] [2021-11-19 14:04:08,498 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 14:04:08,498 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:08,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:08,499 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:08,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-11-19 14:04:09,724 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-19 14:04:09,725 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:04:09,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:04:09,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:10,238 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 667 trivial. 0 not checked. [2021-11-19 14:04:10,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:10,752 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 667 trivial. 0 not checked. [2021-11-19 14:04:10,753 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:04:10,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877856534] [2021-11-19 14:04:10,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1877856534] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:04:10,753 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:04:10,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 14:04:10,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260053049] [2021-11-19 14:04:10,753 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:04:10,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:04:10,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:04:10,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:04:10,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:04:10,755 INFO L87 Difference]: Start difference. First operand 5736 states and 7361 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2021-11-19 14:04:11,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:04:11,453 INFO L93 Difference]: Finished difference Result 5736 states and 7361 transitions. [2021-11-19 14:04:11,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:04:11,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 295 [2021-11-19 14:04:11,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:04:11,474 INFO L225 Difference]: With dead ends: 5736 [2021-11-19 14:04:11,475 INFO L226 Difference]: Without dead ends: 5734 [2021-11-19 14:04:11,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 589 GetRequests, 584 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:04:11,480 INFO L933 BasicCegarLoop]: 1465 mSDtfsCounter, 11 mSDsluCounter, 4387 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 5852 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:04:11,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 5852 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:04:11,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5734 states. [2021-11-19 14:04:12,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5734 to 5734. [2021-11-19 14:04:12,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5734 states, 3890 states have (on average 1.167095115681234) internal successors, (4540), 3939 states have internal predecessors, (4540), 1367 states have call successors, (1367), 472 states have call predecessors, (1367), 469 states have return successors, (1445), 1352 states have call predecessors, (1445), 1363 states have call successors, (1445) [2021-11-19 14:04:12,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5734 states to 5734 states and 7352 transitions. [2021-11-19 14:04:12,303 INFO L78 Accepts]: Start accepts. Automaton has 5734 states and 7352 transitions. Word has length 295 [2021-11-19 14:04:12,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:04:12,304 INFO L470 AbstractCegarLoop]: Abstraction has 5734 states and 7352 transitions. [2021-11-19 14:04:12,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2021-11-19 14:04:12,304 INFO L276 IsEmpty]: Start isEmpty. Operand 5734 states and 7352 transitions. [2021-11-19 14:04:12,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2021-11-19 14:04:12,307 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:12,307 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:04:12,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:12,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:04:12,508 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_linux_alloc_usb_lock_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)] === [2021-11-19 14:04:12,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:12,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1628141447, now seen corresponding path program 1 times [2021-11-19 14:04:12,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:12,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [877555355] [2021-11-19 14:04:12,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:12,512 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:12,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:12,513 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:12,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-11-19 14:04:15,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:15,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 2831 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:04:15,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:16,518 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 15 proven. 72 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2021-11-19 14:04:16,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:17,648 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2021-11-19 14:04:17,649 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:04:17,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [877555355] [2021-11-19 14:04:17,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [877555355] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:04:17,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [171314657] [2021-11-19 14:04:17,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:17,649 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:04:17,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:04:17,650 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:04:17,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2021-11-19 14:04:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:19,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 2831 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:04:19,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:21,289 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 667 trivial. 0 not checked. [2021-11-19 14:04:21,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:22,518 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 667 trivial. 0 not checked. [2021-11-19 14:04:22,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [171314657] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:04:22,519 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:04:22,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [10, 10] total 20 [2021-11-19 14:04:22,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657720651] [2021-11-19 14:04:22,520 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:04:22,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:04:22,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:04:22,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:04:22,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2021-11-19 14:04:22,521 INFO L87 Difference]: Start difference. First operand 5734 states and 7352 transitions. Second operand has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 3 states have call successors, (64), 3 states have call predecessors, (64), 2 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2021-11-19 14:04:23,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:04:23,374 INFO L93 Difference]: Finished difference Result 11289 states and 14677 transitions. [2021-11-19 14:04:23,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:04:23,375 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 3 states have call successors, (64), 3 states have call predecessors, (64), 2 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) Word has length 302 [2021-11-19 14:04:23,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:04:23,393 INFO L225 Difference]: With dead ends: 11289 [2021-11-19 14:04:23,393 INFO L226 Difference]: Without dead ends: 5716 [2021-11-19 14:04:23,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1204 GetRequests, 1186 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2021-11-19 14:04:23,413 INFO L933 BasicCegarLoop]: 1461 mSDtfsCounter, 1337 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 1461 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:04:23,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1337 Valid, 1461 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:04:23,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5716 states. [2021-11-19 14:04:24,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5716 to 5716. [2021-11-19 14:04:24,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5716 states, 3873 states have (on average 1.163697392202427) internal successors, (4507), 3921 states have internal predecessors, (4507), 1367 states have call successors, (1367), 472 states have call predecessors, (1367), 469 states have return successors, (1445), 1352 states have call predecessors, (1445), 1363 states have call successors, (1445) [2021-11-19 14:04:24,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5716 states to 5716 states and 7319 transitions. [2021-11-19 14:04:24,320 INFO L78 Accepts]: Start accepts. Automaton has 5716 states and 7319 transitions. Word has length 302 [2021-11-19 14:04:24,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:04:24,320 INFO L470 AbstractCegarLoop]: Abstraction has 5716 states and 7319 transitions. [2021-11-19 14:04:24,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 3 states have call successors, (64), 3 states have call predecessors, (64), 2 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2021-11-19 14:04:24,321 INFO L276 IsEmpty]: Start isEmpty. Operand 5716 states and 7319 transitions. [2021-11-19 14:04:24,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2021-11-19 14:04:24,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:24,326 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:04:24,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:24,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (43)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:24,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:04:24,739 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:04:24,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:24,739 INFO L85 PathProgramCache]: Analyzing trace with hash 678965092, now seen corresponding path program 1 times [2021-11-19 14:04:24,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:24,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1090175731] [2021-11-19 14:04:24,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:24,742 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:24,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:24,743 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:24,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-11-19 14:04:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:28,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 3263 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:04:28,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:29,487 INFO L134 CoverageAnalysis]: Checked inductivity of 881 backedges. 158 proven. 72 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2021-11-19 14:04:29,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:30,986 INFO L134 CoverageAnalysis]: Checked inductivity of 881 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 809 trivial. 0 not checked. [2021-11-19 14:04:30,986 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:04:30,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1090175731] [2021-11-19 14:04:30,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1090175731] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:04:30,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1923862845] [2021-11-19 14:04:30,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:30,987 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:04:30,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:04:30,988 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:04:30,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2021-11-19 14:04:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:33,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 3263 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:04:33,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:34,241 INFO L134 CoverageAnalysis]: Checked inductivity of 881 backedges. 158 proven. 72 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2021-11-19 14:04:34,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:35,381 INFO L134 CoverageAnalysis]: Checked inductivity of 881 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 809 trivial. 0 not checked. [2021-11-19 14:04:35,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1923862845] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:04:35,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041429278] [2021-11-19 14:04:35,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:35,382 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:04:35,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:04:35,383 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:04:35,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-11-19 14:04:38,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:38,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 3263 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-19 14:04:38,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:39,795 INFO L134 CoverageAnalysis]: Checked inductivity of 881 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 738 trivial. 0 not checked. [2021-11-19 14:04:39,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:41,580 INFO L134 CoverageAnalysis]: Checked inductivity of 881 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 877 trivial. 0 not checked. [2021-11-19 14:04:41,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041429278] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:04:41,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-19 14:04:41,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10, 10, 10, 10, 7] total 28 [2021-11-19 14:04:41,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262766915] [2021-11-19 14:04:41,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:04:41,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:04:41,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:04:41,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:04:41,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=651, Unknown=0, NotChecked=0, Total=756 [2021-11-19 14:04:41,584 INFO L87 Difference]: Start difference. First operand 5716 states and 7319 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 6 states have internal predecessors, (173), 3 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) [2021-11-19 14:04:44,165 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:04:45,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:04:45,056 INFO L93 Difference]: Finished difference Result 11339 states and 14642 transitions. [2021-11-19 14:04:45,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:04:45,057 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 6 states have internal predecessors, (173), 3 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) Word has length 437 [2021-11-19 14:04:45,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:04:45,081 INFO L225 Difference]: With dead ends: 11339 [2021-11-19 14:04:45,082 INFO L226 Difference]: Without dead ends: 5788 [2021-11-19 14:04:45,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2618 GetRequests, 2590 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=120, Invalid=750, Unknown=0, NotChecked=0, Total=870 [2021-11-19 14:04:45,098 INFO L933 BasicCegarLoop]: 1467 mSDtfsCounter, 9 mSDsluCounter, 7326 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 8793 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:04:45,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 8793 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-19 14:04:45,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5788 states. [2021-11-19 14:04:45,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5788 to 5780. [2021-11-19 14:04:45,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5780 states, 3917 states have (on average 1.1618585652284912) internal successors, (4551), 3969 states have internal predecessors, (4551), 1375 states have call successors, (1375), 472 states have call predecessors, (1375), 481 states have return successors, (1492), 1368 states have call predecessors, (1492), 1371 states have call successors, (1492) [2021-11-19 14:04:45,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5780 states to 5780 states and 7418 transitions. [2021-11-19 14:04:45,896 INFO L78 Accepts]: Start accepts. Automaton has 5780 states and 7418 transitions. Word has length 437 [2021-11-19 14:04:45,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:04:45,897 INFO L470 AbstractCegarLoop]: Abstraction has 5780 states and 7418 transitions. [2021-11-19 14:04:45,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 6 states have internal predecessors, (173), 3 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) [2021-11-19 14:04:45,897 INFO L276 IsEmpty]: Start isEmpty. Operand 5780 states and 7418 transitions. [2021-11-19 14:04:45,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2021-11-19 14:04:45,904 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:45,905 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 11, 11, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:04:46,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:46,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:46,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (45)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:46,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:04:46,519 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:04:46,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:46,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1227335428, now seen corresponding path program 1 times [2021-11-19 14:04:46,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:46,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1942951543] [2021-11-19 14:04:46,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:46,523 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:46,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:46,524 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:46,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-11-19 14:04:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:50,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 3450 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:04:50,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:51,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1124 backedges. 333 proven. 72 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2021-11-19 14:04:51,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:53,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1124 backedges. 7 proven. 72 refuted. 0 times theorem prover too weak. 1045 trivial. 0 not checked. [2021-11-19 14:04:53,555 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:04:53,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1942951543] [2021-11-19 14:04:53,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1942951543] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:04:53,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [647963481] [2021-11-19 14:04:53,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:53,557 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:04:53,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:04:53,558 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:04:53,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2021-11-19 14:04:55,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:55,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 3450 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:04:55,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:57,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1124 backedges. 333 proven. 72 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2021-11-19 14:04:57,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:58,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1124 backedges. 7 proven. 72 refuted. 0 times theorem prover too weak. 1045 trivial. 0 not checked. [2021-11-19 14:04:58,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [647963481] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:04:58,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041367349] [2021-11-19 14:04:58,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:58,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:04:58,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:04:58,391 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:04:58,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2021-11-19 14:05:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:05:01,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 3450 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:05:01,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:05:02,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1124 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked. [2021-11-19 14:05:02,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:05:04,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1124 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1117 trivial. 0 not checked. [2021-11-19 14:05:04,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041367349] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:05:04,294 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 14:05:04,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [10, 10, 10, 10] total 26 [2021-11-19 14:05:04,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487288393] [2021-11-19 14:05:04,295 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:05:04,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 14:05:04,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:05:04,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 14:05:04,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2021-11-19 14:05:04,298 INFO L87 Difference]: Start difference. First operand 5780 states and 7418 transitions. Second operand has 10 states, 10 states have (on average 21.5) internal successors, (215), 8 states have internal predecessors, (215), 2 states have call successors, (79), 2 states have call predecessors, (79), 4 states have return successors, (78), 4 states have call predecessors, (78), 2 states have call successors, (78) [2021-11-19 14:05:07,340 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:09,355 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:12,047 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:13,659 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:15,949 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:17,964 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:19,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:05:19,897 INFO L93 Difference]: Finished difference Result 11432 states and 14690 transitions. [2021-11-19 14:05:19,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 14:05:19,898 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 21.5) internal successors, (215), 8 states have internal predecessors, (215), 2 states have call successors, (79), 2 states have call predecessors, (79), 4 states have return successors, (78), 4 states have call predecessors, (78), 2 states have call successors, (78) Word has length 496 [2021-11-19 14:05:19,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:05:19,916 INFO L225 Difference]: With dead ends: 11432 [2021-11-19 14:05:19,916 INFO L226 Difference]: Without dead ends: 5931 [2021-11-19 14:05:19,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2972 GetRequests, 2946 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=111, Invalid=645, Unknown=0, NotChecked=0, Total=756 [2021-11-19 14:05:19,928 INFO L933 BasicCegarLoop]: 1521 mSDtfsCounter, 63 mSDsluCounter, 10476 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 8 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 11997 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:05:19,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 11997 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 116 Invalid, 4 Unknown, 0 Unchecked, 14.4s Time] [2021-11-19 14:05:19,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5931 states. [2021-11-19 14:05:20,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5931 to 5782. [2021-11-19 14:05:20,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5782 states, 3918 states have (on average 1.1618172537008677) internal successors, (4552), 3971 states have internal predecessors, (4552), 1375 states have call successors, (1375), 472 states have call predecessors, (1375), 482 states have return successors, (1497), 1368 states have call predecessors, (1497), 1371 states have call successors, (1497) [2021-11-19 14:05:20,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5782 states to 5782 states and 7424 transitions. [2021-11-19 14:05:20,952 INFO L78 Accepts]: Start accepts. Automaton has 5782 states and 7424 transitions. Word has length 496 [2021-11-19 14:05:20,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:05:20,953 INFO L470 AbstractCegarLoop]: Abstraction has 5782 states and 7424 transitions. [2021-11-19 14:05:20,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 21.5) internal successors, (215), 8 states have internal predecessors, (215), 2 states have call successors, (79), 2 states have call predecessors, (79), 4 states have return successors, (78), 4 states have call predecessors, (78), 2 states have call successors, (78) [2021-11-19 14:05:20,953 INFO L276 IsEmpty]: Start isEmpty. Operand 5782 states and 7424 transitions. [2021-11-19 14:05:20,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2021-11-19 14:05:20,958 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:05:20,958 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:05:21,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2021-11-19 14:05:21,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (48)] Forceful destruction successful, exit code 0 [2021-11-19 14:05:21,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2021-11-19 14:05:21,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:05:21,559 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:05:21,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:05:21,560 INFO L85 PathProgramCache]: Analyzing trace with hash -2106068523, now seen corresponding path program 1 times [2021-11-19 14:05:21,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:05:21,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1317694937] [2021-11-19 14:05:21,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:05:21,563 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:05:21,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:05:21,564 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:05:21,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2021-11-19 14:05:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:05:25,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 3634 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:05:25,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:05:27,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 306 proven. 72 refuted. 0 times theorem prover too weak. 772 trivial. 0 not checked. [2021-11-19 14:05:27,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:05:28,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 1078 trivial. 0 not checked. [2021-11-19 14:05:28,720 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:05:28,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1317694937] [2021-11-19 14:05:28,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1317694937] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:05:28,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1347841634] [2021-11-19 14:05:28,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:05:28,720 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:05:28,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:05:28,721 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:05:28,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2021-11-19 14:05:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:05:30,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 3634 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:05:30,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:05:32,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 306 proven. 72 refuted. 0 times theorem prover too weak. 772 trivial. 0 not checked. [2021-11-19 14:05:32,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:05:33,585 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 1078 trivial. 0 not checked. [2021-11-19 14:05:33,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1347841634] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:05:33,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107076598] [2021-11-19 14:05:33,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:05:33,586 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:05:33,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:05:33,588 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:05:33,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2021-11-19 14:05:36,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:05:36,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 3634 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-19 14:05:36,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:05:38,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 1083 trivial. 0 not checked. [2021-11-19 14:05:38,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:05:41,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1144 trivial. 0 not checked. [2021-11-19 14:05:41,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107076598] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:05:41,644 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 14:05:41,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [10, 10, 10, 10] total 34 [2021-11-19 14:05:41,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079309083] [2021-11-19 14:05:41,645 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:05:41,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-19 14:05:41,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:05:41,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 14:05:41,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1002, Unknown=0, NotChecked=0, Total=1122 [2021-11-19 14:05:41,647 INFO L87 Difference]: Start difference. First operand 5782 states and 7424 transitions. Second operand has 18 states, 18 states have (on average 10.444444444444445) internal successors, (188), 14 states have internal predecessors, (188), 4 states have call successors, (66), 2 states have call predecessors, (66), 6 states have return successors, (66), 8 states have call predecessors, (66), 4 states have call successors, (66) [2021-11-19 14:05:43,712 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:45,738 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:47,757 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:49,777 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:51,964 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:53,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:05:53,869 INFO L93 Difference]: Finished difference Result 11482 states and 14875 transitions. [2021-11-19 14:05:53,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-19 14:05:53,871 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.444444444444445) internal successors, (188), 14 states have internal predecessors, (188), 4 states have call successors, (66), 2 states have call predecessors, (66), 6 states have return successors, (66), 8 states have call predecessors, (66), 4 states have call successors, (66) Word has length 518 [2021-11-19 14:05:53,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:05:53,891 INFO L225 Difference]: With dead ends: 11482 [2021-11-19 14:05:53,891 INFO L226 Difference]: Without dead ends: 5865 [2021-11-19 14:05:53,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3108 GetRequests, 3070 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=159, Invalid=1401, Unknown=0, NotChecked=0, Total=1560 [2021-11-19 14:05:53,907 INFO L933 BasicCegarLoop]: 1481 mSDtfsCounter, 40 mSDsluCounter, 16264 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 17745 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:05:53,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 17745 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 88 Invalid, 4 Unknown, 0 Unchecked, 10.1s Time] [2021-11-19 14:05:53,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5865 states. [2021-11-19 14:05:54,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5865 to 5715. [2021-11-19 14:05:54,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5715 states, 3860 states have (on average 1.154922279792746) internal successors, (4458), 3905 states have internal predecessors, (4458), 1367 states have call successors, (1367), 467 states have call predecessors, (1367), 481 states have return successors, (1488), 1372 states have call predecessors, (1488), 1363 states have call successors, (1488) [2021-11-19 14:05:54,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5715 states to 5715 states and 7313 transitions. [2021-11-19 14:05:54,878 INFO L78 Accepts]: Start accepts. Automaton has 5715 states and 7313 transitions. Word has length 518 [2021-11-19 14:05:54,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:05:54,879 INFO L470 AbstractCegarLoop]: Abstraction has 5715 states and 7313 transitions. [2021-11-19 14:05:54,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.444444444444445) internal successors, (188), 14 states have internal predecessors, (188), 4 states have call successors, (66), 2 states have call predecessors, (66), 6 states have return successors, (66), 8 states have call predecessors, (66), 4 states have call successors, (66) [2021-11-19 14:05:54,880 INFO L276 IsEmpty]: Start isEmpty. Operand 5715 states and 7313 transitions. [2021-11-19 14:05:54,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2021-11-19 14:05:54,884 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:05:54,884 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 19, 9, 9, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:05:54,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2021-11-19 14:05:55,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (51)] Forceful destruction successful, exit code 0 [2021-11-19 14:05:55,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2021-11-19 14:05:55,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:05:55,495 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:05:55,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:05:55,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1632122747, now seen corresponding path program 1 times [2021-11-19 14:05:55,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:05:55,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185923743] [2021-11-19 14:05:55,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:05:55,500 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:05:55,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:05:55,501 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:05:55,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2021-11-19 14:05:59,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:05:59,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 3328 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:05:59,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:06:00,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 418 proven. 72 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2021-11-19 14:06:00,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:06:02,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 1123 trivial. 0 not checked. [2021-11-19 14:06:02,440 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:06:02,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185923743] [2021-11-19 14:06:02,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185923743] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:06:02,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1047480890] [2021-11-19 14:06:02,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:06:02,441 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:06:02,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:06:02,442 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:06:02,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2021-11-19 14:06:04,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:06:04,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 3328 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:06:04,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:06:05,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 418 proven. 72 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2021-11-19 14:06:05,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:06:06,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 1123 trivial. 0 not checked. [2021-11-19 14:06:06,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1047480890] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:06:06,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936715220] [2021-11-19 14:06:06,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:06:06,920 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:06:06,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:06:06,921 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:06:06,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2021-11-19 14:06:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:06:10,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 3328 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:06:10,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:06:11,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 419 proven. 0 refuted. 0 times theorem prover too weak. 776 trivial. 0 not checked. [2021-11-19 14:06:11,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:06:13,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 1181 trivial. 0 not checked. [2021-11-19 14:06:13,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936715220] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:06:13,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-19 14:06:13,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 10, 10, 10, 6] total 24 [2021-11-19 14:06:13,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713516228] [2021-11-19 14:06:13,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:06:13,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:06:13,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:06:13,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:06:13,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=458, Unknown=0, NotChecked=0, Total=552 [2021-11-19 14:06:13,292 INFO L87 Difference]: Start difference. First operand 5715 states and 7313 transitions. Second operand has 6 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 3 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2021-11-19 14:06:15,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:06:15,338 INFO L93 Difference]: Finished difference Result 11278 states and 14440 transitions. [2021-11-19 14:06:15,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:06:15,339 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 3 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) Word has length 469 [2021-11-19 14:06:15,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:06:15,364 INFO L225 Difference]: With dead ends: 11278 [2021-11-19 14:06:15,364 INFO L226 Difference]: Without dead ends: 5715 [2021-11-19 14:06:15,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2809 GetRequests, 2786 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2021-11-19 14:06:15,381 INFO L933 BasicCegarLoop]: 1431 mSDtfsCounter, 330 mSDsluCounter, 5206 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 6637 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:06:15,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [495 Valid, 6637 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-19 14:06:15,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5715 states. [2021-11-19 14:06:16,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5715 to 5715. [2021-11-19 14:06:16,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5715 states, 3860 states have (on average 1.1546632124352332) internal successors, (4457), 3905 states have internal predecessors, (4457), 1367 states have call successors, (1367), 467 states have call predecessors, (1367), 481 states have return successors, (1488), 1372 states have call predecessors, (1488), 1363 states have call successors, (1488) [2021-11-19 14:06:16,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5715 states to 5715 states and 7312 transitions. [2021-11-19 14:06:16,606 INFO L78 Accepts]: Start accepts. Automaton has 5715 states and 7312 transitions. Word has length 469 [2021-11-19 14:06:16,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:06:16,607 INFO L470 AbstractCegarLoop]: Abstraction has 5715 states and 7312 transitions. [2021-11-19 14:06:16,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 3 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2021-11-19 14:06:16,607 INFO L276 IsEmpty]: Start isEmpty. Operand 5715 states and 7312 transitions. [2021-11-19 14:06:16,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2021-11-19 14:06:16,612 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:06:16,612 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 19, 10, 10, 9, 9, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:06:16,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (54)] Forceful destruction successful, exit code 0 [2021-11-19 14:06:16,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2021-11-19 14:06:17,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2021-11-19 14:06:17,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:06:17,214 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:06:17,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:06:17,214 INFO L85 PathProgramCache]: Analyzing trace with hash 2037601339, now seen corresponding path program 1 times [2021-11-19 14:06:17,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:06:17,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [497478836] [2021-11-19 14:06:17,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:06:17,218 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:06:17,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:06:17,219 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:06:17,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2021-11-19 14:06:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:06:21,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 3534 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:06:21,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:06:23,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 466 proven. 72 refuted. 0 times theorem prover too weak. 802 trivial. 0 not checked. [2021-11-19 14:06:23,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:06:24,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 1268 trivial. 0 not checked. [2021-11-19 14:06:24,921 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:06:24,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [497478836] [2021-11-19 14:06:24,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [497478836] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:06:24,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2067648205] [2021-11-19 14:06:24,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:06:24,922 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:06:24,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:06:24,923 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:06:24,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2021-11-19 14:06:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:06:27,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 3534 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:06:27,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:06:28,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 466 proven. 72 refuted. 0 times theorem prover too weak. 802 trivial. 0 not checked. [2021-11-19 14:06:28,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:06:30,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 1268 trivial. 0 not checked. [2021-11-19 14:06:30,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2067648205] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:06:30,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645030766] [2021-11-19 14:06:30,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:06:30,202 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:06:30,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:06:30,202 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:06:30,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2021-11-19 14:06:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:06:33,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 3534 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:06:33,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:06:35,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 524 proven. 0 refuted. 0 times theorem prover too weak. 816 trivial. 0 not checked. [2021-11-19 14:06:35,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:06:37,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 1322 trivial. 0 not checked. [2021-11-19 14:06:37,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645030766] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:06:37,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-19 14:06:37,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 10, 10, 10, 6] total 24 [2021-11-19 14:06:37,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737967823] [2021-11-19 14:06:37,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:06:37,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:06:37,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:06:37,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:06:37,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=458, Unknown=0, NotChecked=0, Total=552 [2021-11-19 14:06:37,098 INFO L87 Difference]: Start difference. First operand 5715 states and 7312 transitions. Second operand has 6 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 3 states have call successors, (62), 2 states have call predecessors, (62), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2021-11-19 14:06:38,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:06:38,663 INFO L93 Difference]: Finished difference Result 6349 states and 8093 transitions. [2021-11-19 14:06:38,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:06:38,664 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 3 states have call successors, (62), 2 states have call predecessors, (62), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 533 [2021-11-19 14:06:38,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:06:38,681 INFO L225 Difference]: With dead ends: 6349 [2021-11-19 14:06:38,681 INFO L226 Difference]: Without dead ends: 5719 [2021-11-19 14:06:38,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3193 GetRequests, 3170 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2021-11-19 14:06:38,687 INFO L933 BasicCegarLoop]: 1435 mSDtfsCounter, 13 mSDsluCounter, 5694 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 7129 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:06:38,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 7129 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 14:06:38,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5719 states. [2021-11-19 14:06:39,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5719 to 5717. [2021-11-19 14:06:39,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5717 states, 3861 states have (on average 1.1541051541051541) internal successors, (4456), 3907 states have internal predecessors, (4456), 1367 states have call successors, (1367), 467 states have call predecessors, (1367), 482 states have return successors, (1491), 1372 states have call predecessors, (1491), 1363 states have call successors, (1491) [2021-11-19 14:06:39,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5717 states to 5717 states and 7314 transitions. [2021-11-19 14:06:39,596 INFO L78 Accepts]: Start accepts. Automaton has 5717 states and 7314 transitions. Word has length 533 [2021-11-19 14:06:39,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:06:39,597 INFO L470 AbstractCegarLoop]: Abstraction has 5717 states and 7314 transitions. [2021-11-19 14:06:39,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 3 states have call successors, (62), 2 states have call predecessors, (62), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2021-11-19 14:06:39,597 INFO L276 IsEmpty]: Start isEmpty. Operand 5717 states and 7314 transitions. [2021-11-19 14:06:39,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2021-11-19 14:06:39,602 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:06:39,603 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 19, 9, 9, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:06:39,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (57)] Forceful destruction successful, exit code 0 [2021-11-19 14:06:39,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (56)] Forceful destruction successful, exit code 0 [2021-11-19 14:06:40,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2021-11-19 14:06:40,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:06:40,204 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:06:40,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:06:40,204 INFO L85 PathProgramCache]: Analyzing trace with hash -136447804, now seen corresponding path program 1 times [2021-11-19 14:06:40,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:06:40,208 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [325334652] [2021-11-19 14:06:40,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:06:40,208 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:06:40,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:06:40,209 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:06:40,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2021-11-19 14:06:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:06:44,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 3667 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:06:44,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:06:46,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1319 backedges. 436 proven. 72 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2021-11-19 14:06:46,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:06:47,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1319 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 1247 trivial. 0 not checked. [2021-11-19 14:06:47,709 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:06:47,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [325334652] [2021-11-19 14:06:47,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [325334652] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:06:47,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1752534761] [2021-11-19 14:06:47,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:06:47,710 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:06:47,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:06:47,711 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:06:47,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2021-11-19 14:06:49,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:06:49,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 3667 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:06:49,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:06:51,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1319 backedges. 436 proven. 72 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2021-11-19 14:06:51,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:06:53,028 INFO L134 CoverageAnalysis]: Checked inductivity of 1319 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 1247 trivial. 0 not checked. [2021-11-19 14:06:53,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1752534761] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:06:53,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459933428] [2021-11-19 14:06:53,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:06:53,029 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:06:53,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:06:53,030 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:06:53,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2021-11-19 14:06:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:06:56,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 3667 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:06:56,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:06:57,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1319 backedges. 482 proven. 0 refuted. 0 times theorem prover too weak. 837 trivial. 0 not checked. [2021-11-19 14:06:57,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:06:59,498 INFO L134 CoverageAnalysis]: Checked inductivity of 1319 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 1305 trivial. 0 not checked. [2021-11-19 14:06:59,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459933428] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:06:59,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-19 14:06:59,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 10, 10, 10, 6] total 24 [2021-11-19 14:06:59,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841248292] [2021-11-19 14:06:59,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:06:59,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:06:59,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:06:59,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:06:59,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=458, Unknown=0, NotChecked=0, Total=552 [2021-11-19 14:06:59,501 INFO L87 Difference]: Start difference. First operand 5717 states and 7314 transitions. Second operand has 6 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 3 states have call successors, (61), 2 states have call predecessors, (61), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2021-11-19 14:07:01,777 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:07:03,796 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:07:05,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:07:05,126 INFO L93 Difference]: Finished difference Result 6362 states and 8108 transitions. [2021-11-19 14:07:05,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:07:05,127 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 3 states have call successors, (61), 2 states have call predecessors, (61), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 534 [2021-11-19 14:07:05,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:07:05,142 INFO L225 Difference]: With dead ends: 6362 [2021-11-19 14:07:05,143 INFO L226 Difference]: Without dead ends: 5832 [2021-11-19 14:07:05,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3199 GetRequests, 3176 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2021-11-19 14:07:05,147 INFO L933 BasicCegarLoop]: 1606 mSDtfsCounter, 66 mSDsluCounter, 6266 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 7872 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:07:05,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 7872 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 2 Unknown, 0 Unchecked, 4.6s Time] [2021-11-19 14:07:05,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5832 states. [2021-11-19 14:07:06,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5832 to 5717. [2021-11-19 14:07:06,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5717 states, 3861 states have (on average 1.1535871535871536) internal successors, (4454), 3907 states have internal predecessors, (4454), 1367 states have call successors, (1367), 467 states have call predecessors, (1367), 482 states have return successors, (1491), 1372 states have call predecessors, (1491), 1363 states have call successors, (1491) [2021-11-19 14:07:06,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5717 states to 5717 states and 7312 transitions. [2021-11-19 14:07:06,037 INFO L78 Accepts]: Start accepts. Automaton has 5717 states and 7312 transitions. Word has length 534 [2021-11-19 14:07:06,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:07:06,038 INFO L470 AbstractCegarLoop]: Abstraction has 5717 states and 7312 transitions. [2021-11-19 14:07:06,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 3 states have call successors, (61), 2 states have call predecessors, (61), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2021-11-19 14:07:06,038 INFO L276 IsEmpty]: Start isEmpty. Operand 5717 states and 7312 transitions. [2021-11-19 14:07:06,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2021-11-19 14:07:06,043 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:07:06,043 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 19, 9, 9, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:07:06,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:06,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:06,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (60)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:06,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:07:06,644 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:07:06,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:07:06,644 INFO L85 PathProgramCache]: Analyzing trace with hash 877441287, now seen corresponding path program 1 times [2021-11-19 14:07:06,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:07:06,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1668571451] [2021-11-19 14:07:06,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:06,647 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:07:06,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:07:06,649 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:07:06,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2021-11-19 14:07:10,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:10,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 3328 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:07:10,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:11,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 418 proven. 72 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2021-11-19 14:07:11,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:13,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 1123 trivial. 0 not checked. [2021-11-19 14:07:13,138 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:07:13,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1668571451] [2021-11-19 14:07:13,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1668571451] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:07:13,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1281836700] [2021-11-19 14:07:13,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:13,139 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:07:13,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:07:13,163 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:07:13,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2021-11-19 14:07:14,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:15,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 3328 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:07:15,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:16,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 418 proven. 72 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2021-11-19 14:07:16,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:17,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 1123 trivial. 0 not checked. [2021-11-19 14:07:17,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1281836700] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:07:17,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065877670] [2021-11-19 14:07:17,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:17,321 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:07:17,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:07:17,321 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:07:17,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2021-11-19 14:07:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:20,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 3328 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:07:20,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:21,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2021-11-19 14:07:21,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:23,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 1181 trivial. 0 not checked. [2021-11-19 14:07:23,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065877670] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:07:23,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-19 14:07:23,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 10, 10, 10, 6] total 24 [2021-11-19 14:07:23,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014440539] [2021-11-19 14:07:23,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:07:23,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:07:23,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:07:23,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:07:23,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=458, Unknown=0, NotChecked=0, Total=552 [2021-11-19 14:07:23,236 INFO L87 Difference]: Start difference. First operand 5717 states and 7312 transitions. Second operand has 6 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 3 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2021-11-19 14:07:24,748 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:07:26,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:07:26,904 INFO L93 Difference]: Finished difference Result 11272 states and 14433 transitions. [2021-11-19 14:07:26,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:07:26,905 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 3 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) Word has length 469 [2021-11-19 14:07:26,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:07:26,924 INFO L225 Difference]: With dead ends: 11272 [2021-11-19 14:07:26,924 INFO L226 Difference]: Without dead ends: 5827 [2021-11-19 14:07:26,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2809 GetRequests, 2786 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2021-11-19 14:07:26,938 INFO L933 BasicCegarLoop]: 1484 mSDtfsCounter, 296 mSDsluCounter, 5519 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 7003 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:07:26,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [449 Valid, 7003 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-19 14:07:26,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5827 states. [2021-11-19 14:07:27,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5827 to 5717. [2021-11-19 14:07:27,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5717 states, 3861 states have (on average 1.1533281533281534) internal successors, (4453), 3907 states have internal predecessors, (4453), 1367 states have call successors, (1367), 467 states have call predecessors, (1367), 482 states have return successors, (1491), 1372 states have call predecessors, (1491), 1363 states have call successors, (1491) [2021-11-19 14:07:27,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5717 states to 5717 states and 7311 transitions. [2021-11-19 14:07:27,835 INFO L78 Accepts]: Start accepts. Automaton has 5717 states and 7311 transitions. Word has length 469 [2021-11-19 14:07:27,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:07:27,835 INFO L470 AbstractCegarLoop]: Abstraction has 5717 states and 7311 transitions. [2021-11-19 14:07:27,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 3 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2021-11-19 14:07:27,836 INFO L276 IsEmpty]: Start isEmpty. Operand 5717 states and 7311 transitions. [2021-11-19 14:07:27,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2021-11-19 14:07:27,840 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:07:27,840 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 19, 10, 10, 9, 9, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:07:27,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (62)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:28,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:28,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (63)] Ended with exit code 0 [2021-11-19 14:07:28,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:07:28,444 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:07:28,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:07:28,444 INFO L85 PathProgramCache]: Analyzing trace with hash 588562438, now seen corresponding path program 1 times [2021-11-19 14:07:28,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:07:28,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [213910779] [2021-11-19 14:07:28,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:28,447 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:07:28,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:07:28,451 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:07:28,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2021-11-19 14:07:31,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:32,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 3598 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:07:32,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:33,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1343 backedges. 466 proven. 72 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2021-11-19 14:07:33,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:35,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1343 backedges. 3 proven. 72 refuted. 0 times theorem prover too weak. 1268 trivial. 0 not checked. [2021-11-19 14:07:35,717 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:07:35,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [213910779] [2021-11-19 14:07:35,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [213910779] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:07:35,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [94374679] [2021-11-19 14:07:35,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:35,718 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:07:35,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:07:35,719 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:07:35,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (66)] Waiting until timeout for monitored process [2021-11-19 14:07:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:37,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 3598 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:07:37,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:39,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1343 backedges. 466 proven. 72 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2021-11-19 14:07:39,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:40,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1343 backedges. 3 proven. 72 refuted. 0 times theorem prover too weak. 1268 trivial. 0 not checked. [2021-11-19 14:07:40,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [94374679] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:07:40,531 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377141210] [2021-11-19 14:07:40,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:40,531 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:07:40,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:07:40,532 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:07:40,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2021-11-19 14:07:43,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:43,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 3598 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:07:43,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:45,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1343 backedges. 511 proven. 0 refuted. 0 times theorem prover too weak. 832 trivial. 0 not checked. [2021-11-19 14:07:45,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:46,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1343 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 1325 trivial. 0 not checked. [2021-11-19 14:07:46,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377141210] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:07:46,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-19 14:07:46,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 10, 10, 10, 6] total 24 [2021-11-19 14:07:46,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43224903] [2021-11-19 14:07:46,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:07:46,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:07:46,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:07:46,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:07:46,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=458, Unknown=0, NotChecked=0, Total=552 [2021-11-19 14:07:46,941 INFO L87 Difference]: Start difference. First operand 5717 states and 7311 transitions. Second operand has 6 states, 5 states have (on average 40.0) internal successors, (200), 5 states have internal predecessors, (200), 3 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2021-11-19 14:07:48,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:07:48,494 INFO L93 Difference]: Finished difference Result 6351 states and 8088 transitions. [2021-11-19 14:07:48,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:07:48,495 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 40.0) internal successors, (200), 5 states have internal predecessors, (200), 3 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) Word has length 541 [2021-11-19 14:07:48,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:07:48,509 INFO L225 Difference]: With dead ends: 6351 [2021-11-19 14:07:48,509 INFO L226 Difference]: Without dead ends: 5719 [2021-11-19 14:07:48,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3241 GetRequests, 3218 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2021-11-19 14:07:48,514 INFO L933 BasicCegarLoop]: 1432 mSDtfsCounter, 9 mSDsluCounter, 5686 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 7118 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:07:48,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 7118 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 14:07:48,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5719 states. [2021-11-19 14:07:49,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5719 to 5717. [2021-11-19 14:07:49,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5717 states, 3861 states have (on average 1.1528101528101529) internal successors, (4451), 3907 states have internal predecessors, (4451), 1367 states have call successors, (1367), 467 states have call predecessors, (1367), 482 states have return successors, (1491), 1372 states have call predecessors, (1491), 1363 states have call successors, (1491) [2021-11-19 14:07:49,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5717 states to 5717 states and 7309 transitions. [2021-11-19 14:07:49,343 INFO L78 Accepts]: Start accepts. Automaton has 5717 states and 7309 transitions. Word has length 541 [2021-11-19 14:07:49,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:07:49,344 INFO L470 AbstractCegarLoop]: Abstraction has 5717 states and 7309 transitions. [2021-11-19 14:07:49,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 40.0) internal successors, (200), 5 states have internal predecessors, (200), 3 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2021-11-19 14:07:49,344 INFO L276 IsEmpty]: Start isEmpty. Operand 5717 states and 7309 transitions. [2021-11-19 14:07:49,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2021-11-19 14:07:49,350 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:07:49,351 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 19, 9, 9, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:07:49,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (66)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:49,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (65)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:49,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2021-11-19 14:07:49,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:07:49,967 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:07:49,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:07:49,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1659898871, now seen corresponding path program 1 times [2021-11-19 14:07:49,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:07:49,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1391350795] [2021-11-19 14:07:49,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:49,971 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:07:49,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:07:49,972 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:07:50,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (68)] Waiting until timeout for monitored process [2021-11-19 14:07:53,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:53,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 3328 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:07:53,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:55,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 418 proven. 72 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2021-11-19 14:07:55,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:56,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 1123 trivial. 0 not checked. [2021-11-19 14:07:56,706 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:07:56,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1391350795] [2021-11-19 14:07:56,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1391350795] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:07:56,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1583725452] [2021-11-19 14:07:56,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:56,707 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:07:56,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:07:56,708 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:07:56,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (69)] Waiting until timeout for monitored process [2021-11-19 14:07:58,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:58,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 3328 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:07:58,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:59,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 418 proven. 72 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2021-11-19 14:07:59,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:08:01,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 1123 trivial. 0 not checked. [2021-11-19 14:08:01,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1583725452] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:08:01,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005143234] [2021-11-19 14:08:01,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:08:01,033 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:08:01,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:08:01,034 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:08:01,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_069cf977-dd9d-4976-8bfb-cec3f598fc36/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2021-11-19 14:08:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:08:04,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 3328 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-19 14:08:04,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:08:08,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 14 proven. 348 refuted. 0 times theorem prover too weak. 833 trivial. 0 not checked. [2021-11-19 14:08:08,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:08:12,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 3 proven. 51 refuted. 0 times theorem prover too weak. 1141 trivial. 0 not checked. [2021-11-19 14:08:12,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005143234] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:08:12,056 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 14:08:12,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 11, 11] total 36 [2021-11-19 14:08:12,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359934454] [2021-11-19 14:08:12,057 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 14:08:12,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-11-19 14:08:12,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:08:12,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-11-19 14:08:12,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=1092, Unknown=0, NotChecked=0, Total=1260 [2021-11-19 14:08:12,061 INFO L87 Difference]: Start difference. First operand 5717 states and 7309 transitions. Second operand has 36 states, 36 states have (on average 14.027777777777779) internal successors, (505), 36 states have internal predecessors, (505), 10 states have call successors, (169), 8 states have call predecessors, (169), 8 states have return successors, (163), 10 states have call predecessors, (163), 10 states have call successors, (163) [2021-11-19 14:08:14,287 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:16,294 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:18,307 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:20,314 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:22,333 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:24,348 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:38,933 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:40,940 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:42,947 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:44,954 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:46,960 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:48,970 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:50,971 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:52,977 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:54,985 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:56,991 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:58,995 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:00,997 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:03,004 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:05,009 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:07,016 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:21,159 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:23,168 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:25,175 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:27,185 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:29,202 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:31,215 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:33,221 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:35,225 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:37,232 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:39,256 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:41,262 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:43,269 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:45,283 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:47,289 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:09,643 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:11,651 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:13,656 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:15,664 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:17,674 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:19,682 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:21,698 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:23,715 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:25,722 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:27,746 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:29,753 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:31,778 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:33,785 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:35,795 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:37,800 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:53,188 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:55,194 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:57,200 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:59,208 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:01,214 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:03,216 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:05,221 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:07,230 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:09,234 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:43,038 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:45,041 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:47,046 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:49,052 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:51,058 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:53,065 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:55,071 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:57,073 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:59,082 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:12:01,083 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:12:03,089 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:12:05,095 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []